Trigger Finger Disorder
Finger Joint
Hand Deformities, Congenital
Polydactyly
Rheumatic Nodule
Hand
Splints
Metacarpal Bones
Movement
Neuronal activity in somatosensory cortex of monkeys using a precision grip. III. Responses to altered friction perturbations. (1/402)
The purpose of this investigation was to examine the activity changes in single units of the somatosensory cortex in response to lubricating and adhesive coatings applied to a hand-held object. Three monkeys were trained to grasp an object between the thumb and index fingers and to lift and hold it stationary within a narrow position window for 1 s before release. Grip forces normal to the skin surface, load forces tangential to the skin surface, and the displacement of the object were measured on each trial. Adhesive (rosin) and lubricant (petroleum jelly) coatings were applied to the smooth metal surface of the object to alter the friction against the skin. In addition, neuronal activity evoked by force pulse-perturbations generating shear forces and slip on the skin were compared with the patterns of activity elicited by grasping and lifting the coated surfaces. Following changes in surface coatings, both monkeys modulated the rate at which grip forces normal to the skin surface and load forces tangential to the skin surface were applied during the lifting phase of the task. As a result, the ratio of the rates of change of the two forces was proportionately scaled to the surface coating properties with the more slippery surfaces, having higher ratios. This precise control of normal and tangential forces enabled the monkeys to generate adequate grip forces and prevent slip of the object. From a total of 386 single neurons recorded in the hand area of the somatosensory cortex, 92 were tested with at least 1 coating. Cell discharge changed significantly with changes in surface coating in 62 (67%) of these cells. Of these coating-related cells, 51 were tested with both an adhesive and lubricating coating, and 45 showed significant differences in activity between the untreated metal surface and either the lubricant or the adhesive coating. These cells were divided into three main groups on the basis of their response patterns. In the first group (group A), the peak discharge increased significantly when the grasped surface was covered with lubricant. These cells appeared to be selectively sensitive to slip of the object on the skin. The second group (group B) was less activated by the adhesive surface compared with either the untreated metal or the lubricated surface, and they responded mainly to variations in the force normal to the skin surface. These cells provide useful feedback for the control of grip force. The third group (group C) responded to both slips and to changes in forces tangential to the skin. Most of these cells responded with a biphasic pattern reflecting the bidirectional changes in load force as the object was first accelerated and then decelerated. One hundred sixty-eight of the 386 isolated neurons were tested with brief perturbations during the task. Of these, 147 (88%) responded to the perturbation with a significant change in activity. In most of the cells, the response to the perturbation was shorter than 100 ms with a mean latency of 44.1 +/- 16.3 (SD) ms. For each of the cell groups, the activity patterns triggered by the perturbations were consistent with the activity patterns generated during the grasping and lifting of the coated object. (+info)Control of fingertip forces in multidigit manipulation. (2/402)
Previous studies of control of fingertip forces in skilled manipulation have focused on tasks involving two digits, typically the thumb and index finger. Here we examine control of fingertip actions in a multidigit task in which subjects lifted an object using unimanual and bimanual grasps engaging the tips of the thumb and two fingers. The grasps resembled those used when lifting a cylindrical object from above; the two fingers were some 4.25 cm apart and the thumb was approximately 5.54 cm from either finger. The three-dimensional forces and torques applied by each digit and the digit contact positions were measured along with the position and orientation of the object. The vertical forces applied tangential to the grasp surfaces to lift the object were synchronized across the digits, and the contribution by each digit to the total vertical force reflected intrinsic object properties (geometric relationship between the object's center of mass and the grasped surfaces). Subjects often applied small torques tangential to the grasped surfaces even though the object could have been lifted without such torques. The normal forces generated by each digit increased in parallel with the local tangential load (force and torque), providing an adequate safety margin against slips at each digit. In the present task, the orientations of the force vectors applied by the separate digits were not fully constrained and therefore the motor controller had to choose from a number of possible solutions. Our findings suggest that subjects attempt to minimize (or at least reduce) fingertip forces while at the same time ensure that grasp stability is preserved. Subjects also avoid horizontal tangential forces, even at a small cost in total force. Moreover, there were subtle actions exerted by the digits that included changes in the distribution of vertical forces across digits and slight object tilt. It is not clear to what extent the brain explicitly controlled these actions, but they could serve, for instance, to keep tangential torques small and to compensate for variations in digit contact positions. In conclusion, we have shown that when lifting an object with a three-digit grip, the coordination of fingertip forces, in many respects, matches what has been documented previously for two-digit grasping. At the same time, our study reveals novel aspects of force control that emerge only in multidigit manipulative tasks. (+info)Trapeziectomy for basal thumb joint osteoarthritis: 3- to 19-year follow-up. (3/402)
A consecutive series of 40 trapeziectomies in 30 patients with basal thumb joint osteoarthritis was reviewed. Sixteen thumbs had pan-trapezial and 24 thumbs trapeziometacarpal osteoarthritis. Simple excision without soft tissue interposition was performed by the same surgeon using an identical surgical technique. Twenty-eight patients were female (mean age 57 years) with a mean follow-up of 11 (3-19) years. Twenty-eight patients were satisfied with their operation, with 26 thumbs being pain free. Thumb pinch strength was improved by 40% compared to preoperative values, but still remained 22% weaker than the non-operated side. (+info)Holt-Oram syndrome revisited. Two patients in the same family. (4/402)
Holt-Oram syndrome was first described in 1960 as an association of familial heart disease and musculoskeletal abnormalities. The most important findings include atrial septal defects, atrioventricular conduction abnormalities, vascular hypoplasia, and upper limb musculoskeletal deformities. We report two patients with this syndrome in the same family and discuss the variability of the musculoskeletal abnormalities and their association with the cardiac morphologic defects. Both patients in this study had associated eosinophilia, which has not been reported in the literature. (+info)Activity-dependent conduction block in multifocal motor neuropathy. (5/402)
Patients with multifocal motor neuropathy may complain of muscle fatigue, even though the degree of conduction block assessed at rest has improved with treatment. To explore the mechanism involved, we examined changes in muscle force during maximum voluntary contraction (MVC) and monitored conduction block before and after MVC in five patients with multifocal motor neuropathy. The results were compared with those for the contralateral unaffected homonymous muscles. For one patient, who had bilateral involvement, a normal subject of a similar age and stature served as the control. Results of conduction studies were also compared with those from six patients with amyotrophic lateral sclerosis (ALS) with similar compound muscle action potential (CMAP) amplitudes after proximal stimulation. During MVC for 60 s, the affected muscles developed prominent fatigue; the force at the end of contraction compared with the initial force was significantly lower for the affected muscles [42 +/- 19% (mean +/- standard deviation) of the initial force] than for the control muscles (94 +/- 9%; P = 0.01). After MVC, the amplitude ratio of CMAPs after proximal versus distal nerve stimulation transiently decreased to 19 +/- 14% of that before MVC in the affected muscles, but not in the control muscles (94 +/- 3.8% of that before MVC) and in patients with ALS (95 +/- 6.7%). In one patient with a focal lesion in the forearm, nerve excitability was monitored at the lesion site before and after MVC for 120 s. There were significant increases in axonal threshold (approximately 48%) and supernormality (approximately 135%) immediately after MVC, suggesting that the axonal membrane had undergone hyperpolarization and, by extrapolation, that this had precipitated the conduction block. This study is the first to show that activity-dependent conduction block plays a role in human disease by causing muscle fatigue. (+info)Randomized controlled trial of nettle sting for treatment of base-of-thumb pain. (6/402)
There are numerous published references to use of nettle sting for arthritis pain but no randomized controlled trials have been reported. We conducted a randomized controlled double-blind crossover study in 27 patients with osteoarthritic pain at the base of the thumb or index finger. Patients applied stinging nettle leaf (Urtica dioica) daily for one week to the painful area. The effect of this treatment was compared with that of placebo, white deadnettle leaf (Lamium album), for one week after a five-week washout period. Observations of pain and disability were recorded for the twelve weeks of the study. After one week's treatment with nettle sting, score reductions on both visual analogue scale (pain) and health assessment questionnaire (disability) were significantly greater than with placebo (P = 0.026 and P = 0.0027). (+info)Effects of repetitive transcranial magnetic stimulation on movement-related cortical activity in humans. (7/402)
Several lines of evidence suggest that low-rate repetitive transcranial magnetic stimulation (rTMS) of the motor cortex at 1 Hz reduces the excitability of the motor cortex and produces metabolic changes under and at a distance from the stimulated side. Therefore, it has been suggested that rTMS may have beneficial effects on motor performance in patients with movement disorders. However, it is still unknown in what way these effects can be produced. The aim of the present study is to investigate whether rTMS of the motor cortex (15 min at 1 Hz) is able to modify the voluntary movement related cortical activity, as reflected in the Beretischaftspotential (BP), and if these changes are functionally relevant for the final motor performance. The cortical movement-related activity in a typical BP paradigm of five healthy volunteers has been recorded using 61 scalp electrodes, while subjects performed self-paced right thumb oppositions every 8-20 s. After a basal recording, the BP was recorded in three different conditions, counterbalanced across subjects: after rTMS stimulation of the left primary motor area (M1) (15 min, 1 Hz, 10% above motor threshold), after 15 min of sham rTMS stimulation and following 15 min of voluntary movements performed with spatio-temporal characteristics similar to those induced by TMS. The tapping test was used to assess motor performance before and after each condition. Only movement-related trials with similar electromyographic (onset from muscular 'silence') and accelerometric patterns (same initial direction and similar amplitudes) were selected for computing BP waveforms. TMS- evoked and self-paced thumb movements had the same directional accelerometric pattern but different amplitudes. In all subjects, the real rTMS, but neither sham stimulation nor prolonged voluntary movements, produced a significant amplitude decrement of the negative slope of the BP; there was also a shortening of the BP onset time in four subjects. The effect was topographically restricted to cortical areas which were active in the basal condition, irrespective of the basal degree of activation at every single electrode. No changes in the tapping test occurred. These findings suggest that rTMS of the motor cortex at 1 Hz may interfere with the movement related brain activity, probably through influence on cortical inhibitory networks. (+info)Volar plate arthroplasty of the thumb interphalangeal joint. (8/402)
The fibrocartilaginous volar plate of the thumb interphalangeal joint is anatomically quite similar to the volar plate of the digital proximal interphalangeal joint. Due to this similarity, Eaton's technique of volar plate arthroplasty may also be utilized in fracture-dislocations of the thumb interphalangeal joint. (+info)In medical terms, the thumb is referred to as "pollex" and it's the first digit of the hand, located laterally to the index finger. It's opposable, meaning it can move opposite to the other fingers, allowing for powerful gripping and precise manipulation. The thumb contains two phalanges bones - the distal and proximal - and is connected to the hand by the carpometacarpal joint, which provides a wide range of motion.
The carpometacarpal (CMC) joints are the articulations between the carpal bones of the wrist and the metacarpal bones of the hand. There are five CMC joints in total, with one located at the base of each finger and thumb. The CMC joint of the thumb, also known as the first CMC joint or trapeziometacarpal joint, is the most commonly affected by osteoarthritis. These joints play a crucial role in hand function and movement, allowing for various grips and grasping motions.
The metacarpophalangeal (MCP) joint is the joint that connects the bones of the hand (metacarpals) to the bones of the fingers and thumb (phalanges). It's also commonly referred to as the "knuckle" joint. The MCP joint allows for flexion, extension, abduction, and adduction movements of the fingers and thumb. It is a synovial joint, which means it contains a lubricating fluid called synovial fluid that helps reduce friction during movement.
In medical terms, fingers are not specifically defined as they are common anatomical structures. However, I can provide you with a general anatomy definition:
Fingers are the terminal parts of the upper limb in primates, including humans, consisting of four digits (thumb, index, middle, and ring fingers) and one opposable thumb. They contain bones called phalanges, connected by joints that allow for movement and flexibility. Each finger has a nail, nerve endings for sensation, and blood vessels to supply nutrients and oxygen. Fingers are crucial for various activities such as grasping, manipulating objects, and tactile exploration of the environment.
Trigger finger, also known as stenosing tenosynovitis, is a condition where one of the fingers or thumbs becomes stuck in a bent position and then straightens with a snap, much like pulling and releasing the trigger on a gun. The ring finger is most commonly affected, but it can occur in other fingers and thumbs as well.
In this disorder, the tendon sheath that surrounds the flexor tendons in the finger becomes inflamed and thickened, making it difficult for the tendon to glide smoothly through it. This results in the finger catching or locking in a bent position, which can be painful to straighten out.
The exact cause of trigger finger is not always known, but it is more common in women than men, and people with certain medical conditions such as diabetes and rheumatoid arthritis are at higher risk. Treatment options may include rest, splinting, medication, or surgery, depending on the severity of the condition.
A finger joint, also known as an articulation, is the point where two bones in a finger connect and allow for movement. The majority of finger joints are classified as hinge joints, permitting flexion and extension movements. These joints consist of several components:
1. Articular cartilage: Smooth tissue that covers the ends of the bones, enabling smooth movement and protecting the bones from friction.
2. Joint capsule: A fibrous sac enclosing the joint, providing stability and producing synovial fluid for lubrication.
3. Synovial membrane: Lines the inner surface of the joint capsule and produces synovial fluid to lubricate the joint.
4. Volar plate (palmar ligament): A strong band of tissue located on the palm side of the joint, preventing excessive extension and maintaining alignment.
5. Collateral ligaments: Two bands of tissue located on each side of the joint, providing lateral stability and limiting radial and ulnar deviation.
6. Flexor tendons: Tendons that attach to the bones on the palmar side of the finger joints, facilitating flexion movements.
7. Extensor tendons: Tendons that attach to the bones on the dorsal side of the finger joints, enabling extension movements.
Finger joints are essential for hand function and enable activities such as grasping, holding, writing, and manipulating objects.
Hand strength refers to the measure of force or power that an individual can generate using the muscles of the hand and forearm. It is often assessed through various tests, such as grip strength dynamometry, which measures the maximum force exerted by the hand when squeezing a device called a handgrip dynanometer. Hand strength is important for performing daily activities, maintaining independence, and can be indicative of overall health and well-being. Reduced hand strength may be associated with conditions such as neuromuscular disorders, arthritis, or injuries.
Congenital hand deformities refer to physical abnormalities or malformations of the hand, wrist, and/or digits (fingers) that are present at birth. These deformities can result from genetic factors, environmental influences during pregnancy, or a combination of both. They may affect the bones, muscles, tendons, joints, and other structures in the hand, leading to varying degrees of impairment in function and appearance.
There are numerous types of congenital hand deformities, some of which include:
1. Polydactyly: The presence of extra digits on the hand, which can be fully formed or rudimentary.
2. Syndactyly: Webbing or fusion of two or more fingers, which may involve soft tissue only or bone as well.
3. Clinodactyly: A curved finger due to a sideways deviation of the fingertip, often affecting the little finger.
4. Camptodactyly: Permanent flexion or bending of one or more fingers, typically involving the proximal interphalangeal joint.
5. Trigger Finger/Thumb: A condition where a finger or thumb becomes locked in a bent position due to thickening and narrowing of the tendon sheath.
6. Radial Club Hand (Radial Ray Deficiency): Underdevelopment or absence of the radius bone, resulting in a short, curved forearm and hand deformity.
7. Ulnar Club Hand (Ulnar Ray Deficiency): Underdevelopment or absence of the ulna bone, leading to a short, curved forearm and hand deformity.
8. Cleidocranial Dysplasia: A genetic disorder affecting bone growth, resulting in underdeveloped or absent collarbones, dental abnormalities, and occasionally hand deformities.
9. Apert Syndrome: A rare genetic disorder characterized by the fusion of fingers and toes (syndactyly) and other skeletal abnormalities.
10. Holt-Oram Syndrome: A genetic disorder involving heart defects and upper limb deformities, such as radial ray deficiency or thumb anomalies.
Treatment for hand deformities varies depending on the specific condition and severity. Options may include physical therapy, bracing, splinting, medications, or surgical intervention.
The trapezium bone is a carpal bone located in the wrist, more specifically in the proximal row of carpals. It is situated at the radial side (thumb side) of the wrist and articulates with the Scaphoid bone proximally, the First Metacarpal bone distally, and the Trapezoid and Capitate bones laterally. Its unique shape resembles that of a trapezoid, hence its name. The trapezium plays a crucial role in wrist movements, particularly in thumb abduction and opposition.
Finger injuries refer to any damage or trauma caused to the fingers, which can include cuts, bruises, dislocations, fractures, and sprains. These injuries can occur due to various reasons such as accidents, sports activities, falls, or direct blows to the finger. Symptoms of finger injuries may include pain, swelling, stiffness, deformity, numbness, or inability to move the finger. The treatment for finger injuries varies depending on the type and severity of the injury, but may include rest, immobilization, ice, compression, elevation, physical therapy, medication, or surgery. It is essential to seek medical attention promptly for proper diagnosis and treatment of finger injuries to prevent further complications and ensure optimal recovery.
Polydactyly is a genetic condition where an individual is born with more than the usual number of fingers or toes, often caused by mutations in specific genes. It can occur as an isolated trait or as part of a genetic syndrome. The additional digit(s) may be fully formed and functional, underdeveloped, or just a small bump. Polydactyly is one of the most common congenital limb abnormalities.
A rheumatic nodule is not a specific medical definition, but rather a descriptive term for a type of nodule that can be found in certain medical conditions. These nodules are typically associated with rheumatoid arthritis (RA), although they can also occur in other diseases such as systemic lupus erythematosus (SLE) and dermatomyositis.
Rheumatic nodules are small, firm, round or oval-shaped lumps that develop under the skin or in certain organs such as the lungs. They can vary in size from a few millimeters to several centimeters in diameter. In RA, these nodules usually appear on the forearms, elbows, fingers, knees, and ankles, although they can occur in other areas of the body as well.
Histologically, rheumatic nodules are characterized by a central area of fibrinoid necrosis surrounded by palisading histiocytes and fibroblasts. They may also contain lymphocytes, plasma cells, and eosinophils. The presence of these nodules is thought to be related to the immune system's response to the underlying disease process, although their exact cause and significance are not fully understood.
It is important to note that rheumatic nodules can also occur in individuals without any known medical condition, and their presence does not necessarily indicate the presence of a specific disease. However, if you notice any new or unusual lumps or bumps on your body, it is always a good idea to consult with a healthcare professional for further evaluation and diagnosis.
In medical terms, toes are the digits located at the end of the foot. Humans typically have five toes on each foot, consisting of the big toe (hallux), second toe, third toe, fourth toe, and little toe (fifth toe). The bones of the toes are called phalanges, with the exception of the big toe, which has a different bone structure and is composed of a proximal phalanx, distal phalanx, and sometimes a sesamoid bone.
Toes play an essential role in maintaining balance and assisting in locomotion by helping to push off the ground during walking or running. They also contribute to the overall stability and posture of the body. Various medical conditions can affect toes, such as ingrown toenails, bunions, hammertoes, and neuromas, which may require specific treatments or interventions to alleviate pain, restore function, or improve appearance.
In medical terms, a hand is the part of the human body that is attached to the forearm and consists of the carpus (wrist), metacarpus, and phalanges. It is made up of 27 bones, along with muscles, tendons, ligaments, and other soft tissues. The hand is a highly specialized organ that is capable of performing a wide range of complex movements and functions, including grasping, holding, manipulating objects, and communicating through gestures. It is also richly innervated with sensory receptors that provide information about touch, temperature, pain, and proprioception (the sense of the position and movement of body parts).
A splint is a device used to support, protect, and immobilize injured body parts, such as bones, joints, or muscles. It can be made from various materials like plastic, metal, or fiberglass. Splints are often used to keep the injured area in a stable position, reducing pain, swelling, and further damage while the injury heals. They come in different shapes and sizes, tailored to fit specific body parts and injuries. A splint can be adjustable or custom-made, depending on the patient's needs. It is essential to follow healthcare professionals' instructions for using and caring for a splint to ensure proper healing and prevent complications.
The metacarpal bones are the long slender bones that make up the middle part of the hand, located between the carpals (wrist bones) and the phalanges (finger bones). There are five metacarpal bones in total, with one for each finger and thumb. Each bone has a base attached to the carpals, a shaft, and a head that connects to the phalanges. The metacarpal bones play a crucial role in hand function, providing stability and support during gripping and manipulation movements.
Traumatic amputation is the accidental or spontaneous separation of a limb or body part due to trauma or severe injury. This can occur as a result of motor vehicle accidents, industrial incidents, agricultural mishaps, or military combat, among other causes. The severed portion may or may not be recoverable for reattachment depending on various factors such as the extent of damage, ischemia time, and conditions during transportation. Immediate medical attention is required to control bleeding, manage shock, prevent infection, and initiate appropriate wound care and potential reconstructive surgery.
The metacarpus is the medical term for the part of the hand located between the carpus (wrist) and the digits (fingers). It consists of five bones, known as the metacarpal bones, which are numbered 1 to 5 from the thumb side to the little finger side. Each metacarpal bone has a base, a shaft, and a head. The bases of the metacarpal bones articulate with the carpal bones to form the wrist joint, while the heads of the metacarpal bones form the knuckles at the back of the hand.
The metacarpus plays an essential role in hand function as it provides stability and support for the movement of the fingers and thumb. Injuries or conditions affecting the metacarpus can significantly impact hand function, causing pain, stiffness, weakness, or deformity.
Neoprene is not a medical term, but it is a material that is used in some medical applications. Neoprene is a type of synthetic rubber that is known for its flexibility, durability, and resistance to heat, water, and chemicals. It is often used in the manufacture of medical devices such as braces, supports, and protective gear.
In medical terms, neoprene may be referred to as a component of a device or material used in medical applications. For example, a neoprene sleeve may be used as a compression garment for venous insufficiency or lymphedema management. Neoprene is also sometimes used in the manufacture of medical gloves and other protective equipment due to its resistance to chemicals and other substances.
However, it's important to note that some people may have allergic reactions to neoprene, causing skin irritation or other symptoms. Therefore, healthcare providers should consider patients' individual needs and potential allergies when selecting medical devices made of neoprene or other materials.
In the context of medicine and healthcare, "movement" refers to the act or process of changing physical location or position. It involves the contraction and relaxation of muscles, which allows for the joints to move and the body to be in motion. Movement can also refer to the ability of a patient to move a specific body part or limb, which is assessed during physical examinations. Additionally, "movement" can describe the progression or spread of a disease within the body.
Acquired hand deformities refer to structural changes in the hand or fingers that occur after birth, as a result of injury, illness, or other external factors. These deformities can affect any part of the hand, including the bones, joints, muscles, tendons, ligaments, and nerves. Common causes of acquired hand deformities include trauma, infection, degenerative diseases such as arthritis, tumors, and neurological conditions.
The symptoms of acquired hand deformities can vary depending on the severity and location of the deformity. They may include pain, stiffness, swelling, decreased range of motion, loss of function, and changes in appearance. Treatment for acquired hand deformities may involve a combination of medical interventions, such as medication, physical therapy, or splinting, as well as surgical procedures to correct the underlying structural problem. The goal of treatment is to relieve symptoms, improve function, and restore normal appearance and movement to the hand.
HPIM0171-thumb.jpg - AVC
fftt-thumb-112676 - COOL HUNTING®
Razer's Wolverine V2 Chroma features interchangeable thumb sticks
Pro Thumb:443-0148 | Cat | Caterpillar
Stepper Incandescent-thumb - Autometer
SportsFit Thumb Orthoses - Hand Model
BNT Hype Thumb - USA Volleyball
outsider56 thumb - Minority Rights Group
11 Flexible Facts About the Thumb | Mental Floss
Find other content tagged with 'thumbs'
Festag Bakeoff twlive thumb - Total War
Finger Picks & Thumb Picks | Guitar Center
Thumbs Gallery Module
Android Candy: Quit Thumbing Your Passwords! | Linux Journal
soup thumb
EFT assists 8 year old in giving up thumb sucking
Book awards: Michigan Library Association's Thumbs Up! Award | LibraryThing
Obama Gives College Football Playoff Thumbs Up | Salon.com
Fingers And Thumbs, Meaning & Definition - UsingEnglish.com
Popcorn | Tom Thumb
Finger Picks & Thumb Picks - Woodwind & Brasswind
TikTok star goes viral for his giant five-inch thumb | Dazed
The final word: Is the thumbs-up emoji dead? : NPR
Please Stop Showing Your Thumbs on Social Media
The Violinist's Thumb by Sam Kean | Hachette Book Group
Problem with thumbs | CKEditor.com Forums
Thumbs up - Caption Story | Daily Mirror
Thumb-Controlled Watering Can | The Green Head
Thumb Hypoplasia and Aplasia | Boston Children's Hospital
Thumbs up? Zoom is adding this handy gesture-recognition feature | ZDNET
Skier's thumb6
- Injury to this ligament is sometimes called "skier's thumb" because it is a common skiing injury. (massgeneral.org)
- Skier's thumb is an injury caused by damage to the ulnar collateral ligament (UCL) of the thumb, most often due to a skiing accident. (medscape.com)
- hence, the condition is now commonly referred to as skier's thumb. (medscape.com)
- Traumatic injuries in cases of skier's thumb occur more often and result more commonly in UCL ruptures. (medscape.com)
- Osteoarthritis of the first MCP joint may occur in patients with skier's thumb. (medscape.com)
- Thus, this injury is often called skier's thumb. (msdmanuals.com)
Ulnar collater5
- The most common ligament to be injured in the thumb is the ulnar collateral ligament (see Figure 1). (massgeneral.org)
- Radiographic stress test view of the thumb, showing an ulnar collateral ligament tear. (medscape.com)
- Gamekeepers Thumb (Skiers, Ulnar Collateral Ligament Tear). (medscape.com)
- Malik AK, Morris T, Chou D, Sorene E, Taylor E. Clinical testing of ulnar collateral ligament injuries of the thumb. (medscape.com)
- Injuries to the ulnar collateral ligament (UCL) of the thumb were first recognized as an occupational condition in European gamekeepers. (medscape.com)
Fingers16
- When it comes to the fingers on your hand, the thumb definitely does its own thing. (mentalfloss.com)
- thanks to their unique saddle-like joint shape, and a little muscle known as the abductor pollicis brevis, you can bend and stretch your thumbs opposite your fingers to grip things. (mentalfloss.com)
- In fact, they claim that it would take 'a complete amputation of the middle, ring, and small fingers to equal the impairment of an amputated thumb. (mentalfloss.com)
- Fingerpicks clip onto or wrap around the end of the fingers or thumb so the player can pick several strings at once. (guitarcenter.com)
- What does the saying 'Fingers and thumbs' mean? (usingenglish.com)
- If you are all fingers and thumbs, you are being clumsy and not very skilled with your hands. (usingenglish.com)
- Appearing in a number of Jacob Pina 's videos on the platform, his elongated ET-like thumb dwarfs his fingers, but he has no idea why. (dazeddigital.com)
- They can even allow some people, because of the exceptional flexibility of their thumbs and fingers, to become truly singular violinists. (hachettebookgroup.com)
- However, recently there have been reports that the thumb, like other fingers, has three phalanges, but lacks a metacarpal bone. (wikipedia.org)
- Has greater breadth in the distal phalanx than in the proximal phalanx Is attached to such a mobile metacarpus (which produces most of the opposability) Curls horizontally instead of vertically and hence the etymology of the word: tum is Proto-Indo-European for 'swelling' (cf 'tumor' and 'thigh') since the thumb is the stoutest of the fingers. (wikipedia.org)
- Some anatomists restrict opposition to when the thumb is approximated to the fifth finger (little finger) and refer to other approximations between the thumb and other fingers as apposition. (wikipedia.org)
- the side of the distal thumb phalanx thus approximated to the palm or the hand's radial side (side of index finger) during apposition and the pulp or "palmar" side of the distal thumb phalanx approximated to either the palm or other fingers during opposition. (wikipedia.org)
- Primatologists and hand research pioneers John and Prudence Napier defined opposition as: "A movement by which the pulp surface of the thumb is placed squarely in contact with - or diametrically opposite to - the terminal pads of one or all of the remaining fingers. (wikipedia.org)
- Giant pandas - five clawed fingers plus an extra-long sesamoid bone beside the true first finger that, though not a true finger, works like an opposable thumb. (wikipedia.org)
- The East African maned rat (Lophiomys imhausi), an arboreal, porcupine-like rodent, has four fingers on its hands and feet and a partially opposable thumb. (wikipedia.org)
- Dislocations of the thumb and fingers. (medscape.com)
Child's thumb2
- If your child's thumb becomes red and chapped from sucking, try applying a moisturiser while they're sleeping. (babycentre.co.uk)
- If your child's thumb gets red and chapped, put cream or lotion on it. (medlineplus.gov)
Opposable thumb1
- Daily tasks involving pinch, grip, grasp, and precision handling are more easily accomplished with an opposable thumb. (medscape.com)
Gamekeeper's thumb5
- No laboratory tests are necessary for the diagnosis of gamekeeper's thumb. (medscape.com)
- Examples of an anteroposterior and lateral radiograph of a gamekeeper's thumb, respectively, are shown below. (medscape.com)
- Newland CC. Gamekeeper's thumb. (medscape.com)
- The condition became known as gamekeeper's thumb . (medscape.com)
- Thus, this injury is sometimes called gamekeeper's thumb. (msdmanuals.com)
Metacarpophalangeal2
- By repetitively wringing the necks of game (eg, chickens) between their thumb and index finger, these workers produced a chronic stretching of the UCL that resulted in instability at the first metacarpophalangeal (MCP) joint. (medscape.com)
- Lee AT, Carlson MG. Thumb metacarpophalangeal joint collateral ligament injury management. (medscape.com)
Radiograph1
- Radiograph of N.D. preoperatively, demonstrating thumb hypoplasia and an unstable carpometacarpal joint. (medscape.com)
Passwords2
- Android Candy: Quit Thumbing Your Passwords! (linuxjournal.com)
- It's a good rule of thumb never to trust anyone with your passwords. (englishbaby.com)
BlackBerry Thumb5
- As spa director of the Hyatt Regency Scottsdale Resort and Spa in Scottsdale, Ariz., Kyra Johnson was very familiar with the ravages of 'BlackBerry thumb. (go.com)
- The term 'BlackBerry thumb' -- named after the ubiquitous hand-held e-mail and phone gadget - has become shorthand for the pain and discomfort that can accompany overuse. (go.com)
- Though it might sound silly to some, many orthopedists and ergonomic experts will tell you BlackBerry thumb is very real and potentially very painful. (go.com)
- You've probably heard of the ailment commonly referred to as "BlackBerry Thumb. (cio.com)
- I tend to agree with Hausman, but if you think you're already afflicted by Cellphone Elbow-or BlackBerry Thumb-have no fear, Dr. Glen D. Cohen, M.D., recently compiled a list of "treatments"…though you could just take my advice-which amounts to about the same thing-and simply reduce the amount of typing you're doing via mobile device. (cio.com)
Fractures2
- On occasion, fractures may occur along with thumb sprains. (massgeneral.org)
- Before any manipulation of the thumb, obtain standard anteroposterior, lateral, and oblique radiographs to exclude metacarpal fractures and gamekeeper's fractures. (medscape.com)
20211
- In 2021, global sales of thumb drives from all manufacturers surpassed $7 billion, a number that is expected to rise to more than $10 billion by 2028. (ieee.org)
Sprains7
- How do thumb sprains occur? (massgeneral.org)
- What are the most common types of thumb sprains? (massgeneral.org)
- How are thumb sprains treated? (massgeneral.org)
- Thumb sprains are tears in the ligaments that attach the thumb to the hand. (msdmanuals.com)
- Most thumb sprains are immobilized with a thumb spica splint, but sometimes surgery is needed. (msdmanuals.com)
- Most thumb sprains involve the main ligament at the base of the thumb on the inside of the hand. (msdmanuals.com)
- For most sprains, the thumb is immobilized with a thumb spica splint. (msdmanuals.com)
Hypoplasia2
- What anomalies may be associated with thumb hypoplasia? (medscape.com)
- Traumatic loss, congenital absence, or hypoplasia of the thumb may result in a need for thumb replantation. (medscape.com)
Picks4
- Finger and thumb picks may be small in size, but they can make a big impact on the sound of your instrument. (guitarcenter.com)
- Finger and thumb picks differ from standard guitar picks in their design and the way they are held. (guitarcenter.com)
- Generally thumb picks are plastic and finger picks are metal. (guitarcenter.com)
- National Picks Nickel Silver Finger Picks would be a good choice if you are mastering the smooth, dynamic sounds of an acoustic guitar while Ernie Ball Thumb Picks are a flexible plastic option that will help you master the fun, lighthearted music of a ukulele or banjo. (guitarcenter.com)
20011
- Beginning in 2001, the Thumbs Up! (librarything.com)
Primates1
- A handful of other animals , mostly primates, have opposable thumbs, or toes, as the case may be. (mentalfloss.com)
Pollicization1
- [ 7 , 8 ] Congenital absence of the thumb from thalidomide exposure provided experience with index finger pollicization for thumb reconstruction. (medscape.com)
Right thumb thumb1
- Jared Goff popped his dislocated right thumb thumb back into place and kept playing. (click2houston.com)
Ligament5
- This ligament may also be injured by jamming the thumb on the ground when falling or by jamming the thumb on a ball or other player. (massgeneral.org)
- Your doctor will then examine the thumb to determine whether the ligament is torn. (massgeneral.org)
- This ligament may also be injured by jamming the thumb backward on a hard surface when falling or on a ball as when catching a baseball. (msdmanuals.com)
- Sometimes when the ligament tears, it pulls a small piece of bone from the bottom of the thumb bone (called an avulsion fracture). (msdmanuals.com)
- To determine whether the ligament is torn and, if so, how badly, doctors ask the person to move the injured thumb in various ways. (msdmanuals.com)
Carpometacarpal2
- For this true, pulp-to-pulp opposition to be possible, the thumb must rotate about its long axis (at the carpometacarpal joint). (wikipedia.org)
- She was unable to actively flex or oppose this thumb, and the first carpometacarpal joint was unstable. (medscape.com)
Blauth1
- Volar view of the clinical appearance of a Blauth type IV pouce flottant thumb. (medscape.com)
Ligaments1
- While the team did not disclose specifics of the injury, NFL Network Insider Ian Rapoport reported that Dalton suffered torn ligaments in the thumb and it is unclear at this time if surgery is required. (nfl.com)
Joint10
- The bulk of your power should come from the wrist and the rest from the thumb or finger joint. (guitarcenter.com)
- Stress radiographs: Radiographs obtained with the thumb in the flexed and extended positions and with valgus stress at the MCP joint can help the physician to determine the degree of instability of partial tears of the UCL (see the following image). (medscape.com)
- Often, 2-3 mL of 1% lidocaine administered into the MCP joint of the thumb is sufficient to relieve the pain and relax the patient's guarding. (medscape.com)
- The MCP joint of the thumb is primarily stabilized by the UCL. (medscape.com)
- The expression comes from the fact that the distance from the end of your thumb to the first joint is about an inch. (englishbaby.com)
- The power grip is enhanced by the strength and mobility of the thumb, which in turn are largely defined by the integrity of the intrinsic and extrinsic musculature, as well as by the functionality of the CMC joint. (medscape.com)
- If the thumb joint is loose, a sprain is likely. (msdmanuals.com)
- The goal of the current study was to evaluate the kinematics and joint loading of the thumb during pipetting. (cdc.gov)
- The time-histories of joint angles and the interface contact force between the thumb and plunger during the pipetting action were determined experimentally, and the joint loadings and joint power in the thumb were calculated via an inverse dynamic approach. (cdc.gov)
- The moment, power, and energy absorption in each joint of the thumb during the extraction and dispensing actions were analyzed. (cdc.gov)
Max's1
- And yet jutting across the image like the saddest lightning bolt ever is Max's thumb. (gawker.com)
Amputation2
- But Katz cites the American Medical Association's 'Guides to the Evaluation of Permanent Impairment' [ PDF ], which states your thumb is so important that a complete amputation 'will result in a 40 percent impairment to the whole hand. (mentalfloss.com)
- [ 3 ] In 1900, Nicoladoni described a reconstruction procedure following traumatic amputation of the thumb in which a staged, pedicled transfer of the great toe was performed. (medscape.com)
Examine the thumb1
- Sometimes before doctors examine the thumb, a local anesthetic is injected near the injured thumb to make the examination less painful. (msdmanuals.com)
Injuries2
- In addition, UCL injuries from chronic repetitive radial stresses typically lead to UCL laxity and thumb instability but without complete UCL rupture. (medscape.com)
- A large number of skiing injuries are attributed to ski poles, in which the strap or sword grip lies across the palm and transmits the damaging force to the thumb during a fall. (medscape.com)
Lemurs1
- These include orangutans, chimpanzees, a phylum of frogs known as phyllomedusa, some lemurs, and giant pandas-although their thumb-like apparatus is really just an extra sesamoid bone that acts like a thumb. (mentalfloss.com)
Reconstruction2
- Katz also points out that 'there used to be a common surgical procedure for thumb reconstruction, where the patient's hand was sewn to their foot for a period of time. (mentalfloss.com)
- Horta et al retrospectively reviewed 107 cases of thumb reconstruction in emergency situations using Moberg, radial innervated cross-finger, Venkataswami-Subramanian, Foucher, Tezcan, and Littler flaps. (medscape.com)
Musculoskeletal1
- Epidemiological studies indicate that the use of thumb-push mechanical pipettes is associated with musculoskeletal disorders in the hand. (cdc.gov)
Diagnosis2
- Clinical examination remains the criterion standard in the diagnosis of a UCL rupture of the thumb. (medscape.com)
- After orthodontic diagnosis, treatment undertaken was the surgical removal of the mesiodens and the use of a palatal crib therapy in order to discontinue the thumb habit. (bvsalud.org)
Suck12
- Even though I want to suck my thumb, I'm a great kid (he liked that! (emofree.com)
- Both parents were very enthusiastic about continuing the process with 'M' and promised to tap every night, and if 'M' did put his thumb in his mouth, to tap on 'Even though I want to suck my thumb right now. (emofree.com)
- Toddlers suck their thumbs because it's comforting and calming. (babycentre.co.uk)
- Most children can safely suck their thumb without damaging the alignment of their teeth or jaw until their permanent teeth begin to appear around age six. (babycentre.co.uk)
- Children who rest their thumb passively in their mouth are less likely to have problems than children who suck aggressively. (babycentre.co.uk)
- For example, while a toddler who's hungry may suck his thumb, an older child (age three or four) might simply ask you for a snack instead. (babycentre.co.uk)
- If you can identify times and places when your child is particularly likely to suck his thumb - while watching television , for example - you could try giving him a substitute, such as a squishy toy to squeeze or puppets to play with. (babycentre.co.uk)
- If they tend to suck their thumb when they're tired, work more naps into their schedule. (babycentre.co.uk)
- Many infants and children suck their thumbs. (medlineplus.gov)
- They may suck their thumbs when they are tired, hungry, bored, stressed, or when they are trying to calm down or fall asleep. (medlineplus.gov)
- But if your child feels pressured to stop, they may want to suck their thumb more. (medlineplus.gov)
- It is OK for children to suck their thumb until their adult teeth start coming in , at around age 6. (medlineplus.gov)
Bones2
- X-rays are usually taken to make sure the bones of the thumb and hand are not fractured. (massgeneral.org)
- The researchers looked at the shape of thumb bones and soft tissue, which is occasionally preserved. (newscientist.com)
Monkeys2
- In apes and Old World monkeys, the thumb can be rotated around its axis, but the extensive area of contact between the pulps of the thumb and index finger is a human characteristic. (wikipedia.org)
- [ 4 ] Development of microsurgical techniques allowed successful transfer of a toe to a thumb in monkeys in 1965 and in a human in 1966. (medscape.com)
Thinner1
- I have always been told that the phrase "rule of thumb" came from an old law that said a man could beat his wife, but only if he used a stick thinner than his thumb! (englishbaby.com)
Ruptures1
- Grades 1 and 2 skier's thumbs and incomplete UCL ruptures can be treated conservatively (nonsurgically) with proper immobilization. (medscape.com)
Definition1
- Arguably, this definition was chosen to underline what is unique to the human thumb. (wikipedia.org)
Forearm1
- It covers the wrist and forearm and keeps the thumb in a neutral position (as shown in thumb spica splint, above). (msdmanuals.com)
Pulp1
- Markings for a free tissue transfer of great toe pulp to restore a volar thumb defect. (medscape.com)
Diagram2
- Diagram of a Moberg volar advancement flap being used for a thumb tip defect. (medscape.com)
- Diagram of a Littler neurovascular island flap for the coverage of a thumb tip defect. (medscape.com)
Swollen3
- Monday, Elliott is scheduled to go home, her new left thumb still bandaged and swollen but looking remarkably thumb-like. (newsday.com)
- When the thumb is sprained, people have difficulty grasping objects between their thumb and index finger, and the thumb is painful and swollen. (msdmanuals.com)
- The thumb is painful, swollen, and sometimes bruised. (msdmanuals.com)
Joints2
- It protects the CMC and MP thumb joints from forceful trauma that can cause injury. (allegromedical.com)
- And it's a result of over-employing your thumbs and the joints that connect them to your hands, often while typing on some sort of mobile device. (cio.com)
Content1
- appears in the XML-file a thumb index should be created depending on the content. (stylusstudio.com)
Index4
- The thumb is the first digit of the hand, next to the index finger. (wikipedia.org)
- At the moment I am working on a thumb index for a broschure. (stylusstudio.com)
- for my thumb index. (stylusstudio.com)
- will be matched as a thumb index. (stylusstudio.com)
Bend1
- It occurs when the skier falls and the pole acts as a fulcrum in the hand to bend the thumb in an extreme position (see Figure 2). (massgeneral.org)
Winners1
- Winners and Honor Books The Thumbs Up! (librarything.com)
Opposition1
- When does a child start to develop function and opposition with the thumb? (medscape.com)
Examination1
- Doctors diagnose a thumb sprain by examining the thumb, sometimes after giving the person an anesthetic to make the examination less painful. (msdmanuals.com)
Habit3
- Midline diastema due to simultaneous interplay of mesiodens and thumb-sucking habit is a very uncommon situation and can represent negative impact on esthetics and function. (bvsalud.org)
- In those situations, the main causes of midline diastemas are not only mesiodens but also congenitally missing teeth, peg-shaped lateral incisors, labial frenum, ethnic and racial characteristics, certain pathologic conditions and thumb-sucking habit (5). (bvsalud.org)
- Ultimately, options are the mesiodens removal, the orthodontic space closure of the diastema and the use of physical and psychological techniques to correct the cause of the thumb habit. (bvsalud.org)
Miniature1
- A miniature keyboard designed to be used with the thumbs. (pcmag.com)
Problem5
- I recently worked with an eight year old boy 'Martin' whose parents contacted me to help with his thumb sucking problem. (emofree.com)
- It is instead merely to highlight a specific and pernicious modern problem: Social media is being ravaged by errant, wayward thumbs, like little moles poking out of the ground just begging to be whacked. (gawker.com)
- Part of the problem is that most thumbs-especially male thumbs-are ugly and unattended to. (gawker.com)
- Hello, I've a little problem when, I use ckfinder, I have a question mark instead the thumbs. (ckeditor.com)
- True, in many tense situations we have to use "a rule of thumb" which is made from self-experience to solve problem quickly. (englishbaby.com)
Calm2
- Children usually give up thumb-sucking when they've found other ways to calm and comfort themselves. (babycentre.co.uk)
- Help them talk out their frustrations instead of sucking on their thumb to calm down. (medlineplus.gov)
Small3
- Just fill it up by dipping it into water, place your thumb over the top hole to complete the vacuum, hold over your thirsty flowers, herbs, plants, or delicate seedlings, and then lift your thumb to release the water through the small holes on the bottom. (thegreenhead.com)
- N.D. presented at 8 weeks of age because of concern over her small right thumb. (medscape.com)
- The baby in this video is picking things up between thumb and pointer finger, like small bits of food, a 1-year movement/physical development milestone. (cdc.gov)
Wrist2
- The thumb may appear to only have two knuckles, but it actually has a third, right above the wrist. (mentalfloss.com)
- The condition, not unlike carpal-tunnel syndrome of the wrist, causes stiffness, tingling, discomfort-even pain-in the thumbs and hands. (cio.com)
Injury7
- The Bengals announced Monday that Dalton was placed on injured reserve, a day after the signal-caller suffered a right thumb injury in Sunday's loss to the Cleveland Browns . (nfl.com)
- The most common cause of UCL injury is an acute abducting (radially directed) force upon the thumb. (medscape.com)
- Football players may develop UCL damage either traumatically (eg, while making a tackle, falling on an outstretched hand [FOOSH injury]), or chronically (eg, linemen, who repetitively stress the thumb radially while blocking). (medscape.com)
- The injury is also common among athletes who handle balls (eg, basketball, football) and among those who use sticks (eg, hockey, lacrosse), in which the sporting equipment can forcefully abduct the thumb during sport activity. (medscape.com)
- Congenital absence or traumatic injury to the thumb, resulting in a loss of its prehensile ability, significantly affects hand function. (medscape.com)
- Whether an indication for surgery is related to injury or congenital malformation of the thumb, the ultimate goal is optimal function of the hand. (medscape.com)
- The thumb may remain weak and less stable after such an injury. (msdmanuals.com)
Give5
- You don't need special tools to swap them out either, just give either thumb stick a good tug. (engadget.com)
- Jerry Cote (Operations and Maintenance): On behalf of the staff of Archives and Special Collections and Purdue Libraries Facilities, we want to give a big Thumbs Up to and express how much we appreciate Jerry Cote, a roofer from Operations and Maintenance, and all he does trying to help us protect our valuable collections and artifacts! (purdue.edu)
- Also, give help if thumb sucking embarrasses your child. (medlineplus.gov)
- Give support to your child when they try to stop sucking their thumb. (medlineplus.gov)
- Would she give up a big toe so that she could have a thumb? (newsday.com)
Hand6
- This specialized surgery uses microvascular surgery techniques to transfer your big toe to your hand, where it will function almost exactly as your thumb did. (mentalfloss.com)
- The firecracker exploded, and Elliott was rushed to Brookhaven Memorial Hospital Medical Center in East Patchogue , where the thumb and two forefingers on her left hand had to be amputated. (newsday.com)
- The thumb plays an important role in hand function. (medscape.com)
- According to Ray et al, when replantation of an avulsed/amputated thumb is not feasible, toe-to-hand transfer may be considered at initial presentation as an immediate one-stage transfer in appropriately chosen patients. (medscape.com)
- [ 10 ] Consideration of these components and how they relate to each other allows a functional approach to the thumb deficit that guides the reconstructive hand surgeon. (medscape.com)
- Doctors then move the thumb in various directions while holding the rest of the hand still (called stress testing). (msdmanuals.com)
Type2
- Whatever type of finger or thumb pick you decide on to enhance your playing style, you're sure to be pleased at the depth and pleasing tone they help you produce. (guitarcenter.com)
- En raison de la gravité de ce type de traumatismes, notamment chez les jeunes, des efforts efficaces de prévention peuvent être nécessaires. (who.int)
Left3
- My attention immediately gravitated to Yglesias's left thumb-and what a thumb it is. (gawker.com)
- Ganz recommended a rare and complicated surgery in which Elliott's left toe would be amputated to replace her thumb. (newsday.com)
- For instance, Ringling Bros., to which she had left her pointer finger to serve as the "Greatest Accusation on Earth," stopped using animals and will now receive a thumbs-up in thanks for leaving animal acts behind. (peta.org)
Cases1
- In many cases, the transplanted toe actually shrinks to the size of a thumb, Ganz said. (newsday.com)