• proximal
  • 10. The screw according to claim 1 wherein said proximal end is radiused. (google.ca)
  • 11. The screw according to claim 1 wherein said threads have respective crests and respective roots, and wherein said crests taper proximally toward said roots at said proximal end. (google.ca)
  • 12. The screw according to claim 11 wherein said threads each have a cutting edge at their crests, said cutting edge becoming gradually blunter toward said proximal end. (google.ca)
  • 2 . The suture screws recited in claim 1 wherein the pin has channels in the first and second sides extending from the transverse bore along the first and second sides to a proximal end of the shaft. (google.com)
  • 12 . The suture screw as recited in claim 11 , wherein an inner surface of the throughbore and an outer surface of the shaft are formed with complimentary longitudinal channels extending from the throughbore proximally toward proximal ends of the pin and the sleeve. (google.com)
  • The bone screw includes (1) a distal threaded portion having a first orientation, (2) a proximal head portion, and (3) an intermediate portion including a compressive member, such as but not limited to a single or double helix, integral with. (google.com)
  • Metastatic cancer deposits in the proximal femur may weaken the bone and cause a pathological hip fracture. (wikipedia.org)
  • The tarsus articulates with the bones of the metatarsus, which in turn articulate with the proximal phalanges of the toes. (wikipedia.org)
  • There are three proximal tarsals, the tibiale, intermedium, and fibulare, named for their points of articulation with the bones of the lower limb. (wikipedia.org)
  • In reptiles and mammals, there are normally just two proximal tarsals, the calcaneus (equivalent to the amphibian fibulare) and the talus (probably derived from a fusion of multiple bones). (wikipedia.org)
  • In birds, the tarsus has disappeared, with the proximal tarsals having fused with the tibia, the centralia having disappeared, and the distal bones having fused with the metatarsals to form a single tarsometatarsus bone, effectively giving the leg a third segment. (wikipedia.org)
  • fracture
  • A bone fixation screw system and method of utilization thereof is provided for a bone having first and second sections with a fracture interface there between. (google.com)
  • The preferred method for treatment is by distraction osteogenesis, in which a controlled fracture of the mandible is separated over a period of time, after the callus forms, allowing new bone to fill in the area of the stretched callus. (google.com)
  • The invention relates to a bone screw, particularly for use with external splints in fracture stabilization, comprising an elongate cylindrical body (2) of predetermined length and diameter tapering into a threaded end portion (5) which terminates with a tip (6), and an opposite screw-handling end (3). (google.com)
  • This invention broadly relates to a bone screw useful for fastening external splints, as applied to a fractured limb by orthopedic surgery in order to stabilize the bone fracture. (google.com)
  • Such splints are fastened at their opposite ends to respective undamaged portions of the broken bone, specifically to opposite sides of the fracture. (google.com)
  • A hip fracture is a break that occurs in the upper part of the femur (thigh bone). (wikipedia.org)
  • Infection in the bone is a rare cause of hip fracture. (wikipedia.org)
  • While osteoarthritis and osteoporosis are associated with bone fracture as we age, these diseases are not the cause of the fracture alone. (wikipedia.org)
  • The temporary implants take most of the burden off of the fracture, causing the bone to become less dense. (wikipedia.org)
  • A Jefferson fracture is a bone fracture of the anterior and posterior arches of the C1 vertebra, though it may also appear as a three- or two-part fracture. (wikipedia.org)
  • femur
  • The PCL is located within the knee joint where it stabilizes the articulating bones, particularly the femur and the tibia, during movement. (wikipedia.org)
  • The canine cranial cruciate ligament performs two main functions: it limits cranial tibial translation (forward movement of the tibia [shin] relative to the femur [thigh]) and internal tibial rotation (inward twisting of the shin relative to the femur). (wikipedia.org)
  • The femoral epiphysis remains in the acetabulum (hip socket), while the metaphysis (end of the femur) move in an anterior direction with external rotation. (wikipedia.org)
  • helical
  • A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a "flighting", usually within a tube, to move liquid or granular materials. (wikipedia.org)
  • distal
  • Posts are provided having have threaded distal ends, such that the distal end of each such post is inserted into the bone. (patents.com)
  • 5. The screw according to claim 1, wherein each of said threads includes a spiral ridge terminating at a location on said distal tip at a radially outermost part of a respective tip surface. (google.ca)
  • 9. The screw according to claim 1, wherein said threads have respective root diameters that gradually taper toward said distal tip. (google.ca)
  • 5 . The suture screw as recited in claim 1 , wherein the threads of the sleeve are interrupted at the distal end of the sleeve. (google.com)
  • a pin having a distal tip and a shaft extending proximally from the tip and has a cross-sectional shape similar to the cross-sectional shape of the throughbore such that when the shaft is inserted into the throughbore, there is a minimal rotation between the pin and the sleeve. (google.com)
  • These are followed by a second row of four bones, referred to as the centralia (singular: centrale), and then a row of five distal tarsals, each articulating with a single metatarsal. (wikipedia.org)
  • The fifth distal tarsal disappears relatively early in evolution, with the remainder becoming the cuneiform and cuboid bones. (wikipedia.org)
  • tibial rotation
  • Along with the transverse tarsal joint (i.e. talonavicular and calcaneocuboid joint), the subtalar joint transforms tibial rotation into forefoot supination and pronation. (wikipedia.org)
  • These mechanisms occur in excessive external tibial rotation and during falls that induce a combination of extension and adduction of the tibia, which is referred to as varus-extension stress, or that occur while the knee is flexed. (wikipedia.org)
  • axial
  • 16. The bone fixation screw according to claim 14 wherein said plural threads are two in number, and wherein the axial distance between successive longitudinally spaced crests of each individual thread is twice the axial distance between successive longitudinally spaced crests of the interleaved threads. (google.ca)
  • When a force (e.g., rotational or axial) is applied to the bone screw in the first direction, the spaces between the surfaces of the compressive member increase, due to the difference in orientation. (google.com)
  • Between them these two joints allow a wide range of movements for the shoulder girdle, much because of the lack of a bone-to-bone contact between the scapula and the axial skeleton. (wikipedia.org)
  • tibia and fibula
  • In tetrapods, the tarsus is a cluster of seven articulating bones in each foot situated between the lower end of tibia and fibula of the lower leg and the metatarsus. (wikipedia.org)
  • A syndesmosis is a slightly movable fibrous joint in which bones such as the tibia and fibula are joined together by connective tissue. (wikipedia.org)
  • tissue
  • These are fixed joints where bones are united by a layer of white fibrous tissue of varying thickness. (wikipedia.org)
  • In the past, arthroplasty used tissue and removal of bone to relieve pain. (wikipedia.org)
  • This substance can deteriorate bony tissue and cause serious bone problems for the patient. (wikipedia.org)
  • maternal symphysiotomy, which makes the opening of the birth canal laxer by breaking the connective tissue between the two pubes bones facilitating the passage of the shoulders. (wikipedia.org)
  • Failure to treat a SCFE may lead to: death of bone tissue in the femoral head (avascular necrosis), degenerative hip disease (hip osteoarthritis), gait abnormalities and chronic pain. (wikipedia.org)
  • 17-47 percent of acute cases of SCFE lead to the death of bone tissue (osteonecrosis) effects. (wikipedia.org)
  • implant
  • This can lead to the re-fracturing of the bone after the implant is removed. (wikipedia.org)
  • The implant is fixed in place with six cortical locking screws and once implanted provides immediate and continuous translational and rotational stability throughout the entire range of motion. (wikipedia.org)
  • When bone is removed, the repaired bones may be: Temporarily fixed in place with a pin or K-wire during healing Fused together with screws or an implant The most common device used in the surgical correction of hammer toes is the K-wire. (wikipedia.org)
  • Its one-piece design doesn't interfere with nearby healthy joints, and, it resists rotation problems common to other surgeries The SmartToe implant is constructed of nickel titanium (NiTi), a shape memory alloy also commonly referred to by the name, Nitinol. (wikipedia.org)
  • Expansion secures the implant in place, while the shortening pulls the bones tightly together to encourage the natural fusion process. (wikipedia.org)
  • plurality
  • 10. A bone fixation screw system as described in claim 9 wherein there are a plurality of annular grooves on the lag screw second part and respective depths of the annular grooves are progressively increased towards the extreme end of the lag screw second part. (google.com)
  • 2. The bone screw according to claim 1 , wherein another plurality of flats corresponds, at an angularly shifted location on said cylinder body, to said plurality of flats. (google.com)
  • 3. The bone screw according to claim 2 , wherein a flat corresponds to a separation land of said another plurality of flats formed at angularly shifted locations. (google.com)
  • osteotomy
  • The basic principles of distraction osteogenesis are that a surgical corticotomy or osteotomy is made and the two segments of bone are gradually moved apart at approximately 1 mm/day and then stabilized for bone consolidation. (google.com)
  • To date, distraction of the mandible has been accomplished using external distraction devices, in which surgical pins are placed in the mandible on either side of the corticotomy or osteotomy, transiting the skin through the cheek, and a screw or rachet driven distraction device attached to the pins to provide distraction force. (google.com)
  • The advantages over the conventional techniques are reducing the chance of accidental intra-articular extension of the osteotomy, eliminating the potential risk of unwanted translation or rotation of the bone, ability to readjust the alignment after surgery without the need to remove the bone screws. (wikipedia.org)
  • In a Simitri Stable in Stride surgical procedure, unlike tibial-plateau-leveling osteotomy (TPLO) and tibial tuberosity advancement (TTA), no osteotomy (cutting of bone) is required making this a much less invasive procedure. (wikipedia.org)
  • spinal
  • A first pair of screws are engaged in a vertebra on opposite sides of the spinal midline. (google.com)
  • A longitudinally splined rod, bent into a V-shape, spans between the pair of screws with its vertex generally at the spinal midline. (google.com)
  • transverse
  • An eyebolt fastener includes a serrated aperture to receive the transverse splined rod, and a threaded post extending through a yoke in the screws. (google.com)
  • The talonavicular and calcaneocuboid joints (i.e. between the talus and navicular bones, and the calcaneus and cuboid bones) form the so-called transverse tarsal joint or Chopart's joint. (wikipedia.org)
  • joints
  • In the skull the joints between the bones are called sutures. (wikipedia.org)
  • The skull bones are connected by fibrous joints called sutures.In fetal skulls the sutures are wide to allow slight movement during birth. (wikipedia.org)
  • Another concern is that K-wires affect all the bones of the corrected toe (even if only the second and third joints require treatment). (wikipedia.org)
  • invention
  • This invention relates to apparatuses for lengthening bones, primarily for the lengthening of the mandible by distraction osteogenesis. (google.com)
  • In particular, the invention relates to a bone screw having an elongate cylinder body of predetermined length, a threaded end portion terminating with a tip, and an opposite screw-handling end. (google.com)
  • resists
  • Finally the ischiofemoral ligament on the posterior side of the capsule resists extension, adduction, and internal rotation. (wikipedia.org)
  • The shape of the SmartToe implant's flat, lateral design resists rotation, an important feature that maintains the correction. (wikipedia.org)
  • shaft
  • The rate of volume transfer is proportional to the rotation rate of the shaft. (wikipedia.org)
  • In industrial control applications the device is often used as a variable rate feeder by varying the rotation rate of the shaft to deliver a measured rate or quantity of material into a process. (wikipedia.org)
  • cartilage
  • The most common cause is osteochondrosis, which is a disease of the joint cartilage, and specifically Osteochondritis dissecans (OCD or OD), the separation of a flap of cartilage from the joint surface as a result of avascular necrosis, which in turn arises from failed blood flow in the subchondral bone. (wikipedia.org)
  • In OCD, the normal change of cartilage to bone in the development of the joint fails or is delayed. (wikipedia.org)
  • Surgery for FMCP consists of removal of cartilage and bone fragments and correction of any incongruity of the joint. (wikipedia.org)
  • head
  • A bone screw having a screw member (1) possessing a threaded section (2) and a head (3) and a receiving part (5) at the head end for receiving a rod to be connected to the bone screw is provided. (google.es)
  • The assembly includes a bone screw having a head portion with an outer surface adjacent to the inner surface of the retaining ring. (google.ca)
  • wherein the top surface of the retaining ring at least partially extends into the recessed channel of the bone screw head portion. (google.ca)
  • 7. The bone screw assembly of claim 1 , wherein the head portion of the bone screw is adjacent to the bottom surface of the spacer. (google.ca)
  • For reduction of the impacted part of the humeral head the subcortical defect was filled with an injectable bone substitute (Cerament) to prevent secondary dislocation. (hindawi.com)
  • A rod is then inserted through the holes in the head of the screws. (wikipedia.org)
  • The utricle and saccule are sensors for detecting angular or linear acceleration, and the three semicircular canals detect head rotation. (wikipedia.org)
  • flexion
  • On the other hand, to achieve pure flexion at the joint the deltoid and supraspinatus must cancel the adduction component and the teres minor and infraspinatus the medial rotation component of pectoralis major. (wikipedia.org)
  • A person with a SCFE may prefer to hold their hip in flexion and external rotation. (wikipedia.org)
  • external
  • Often it may go undetected due to the lack of a correct X-ray projection or missing clear presentation of clinical signs, which usually consist of pain and unability to do complete elevation and external rotation [ 1 , 2 ]. (hindawi.com)
  • Physical examination findings that are often positive include the squeeze test and the external rotation test. (wikipedia.org)
  • axially
  • In this way, objects can be releasably secured to the rotation restricting member or the bone screw by means of a clamp to temporarily axially and rotationally secure the objects to the bone. (google.es)
  • wherein releasably securing the object to the clamp axially and rotationally secures the object to the bone. (google.es)
  • A bone fixation screw employs plural interleaved and axially symmetrical spiral threads. (google.ca)
  • clockwise
  • So, during subtalar inversion, the calcaneus also rotates clockwise and translates forward along the axis of the screw. (wikipedia.org)
  • retention
  • The anchoring assemblies each include a support collar and a split retention ring that cooperate to allow adjustment of the bone-engaging member and corresponding connector during surgery. (google.ca)
  • A lag screw is also provided for positional retention of the first section of the bone with respect to the second section of the bone. (google.com)
  • skull
  • It is normal for many of the bones of the skull to remain unfused at birth. (wikipedia.org)
  • This shaker provides a transient stimuli, can generate angular or linear acceleration, and can couple to the skull directly (with skull screws) or via a stimulus platform. (wikipedia.org)
  • primarily
  • It is likely that both air-conducted and bone-conducted stimuli primarily excite irregularly discharging otolith afferents. (wikipedia.org)
  • bony
  • X-ray at follow-up 6 months after the index procedure documents the bony remodeling of the bone substitute. (hindawi.com)
  • tissues
  • When that happens, that can affect the healing process because those tissues that surround the bone and normally supply the healing factors, those have been disrupted and those too will be challenged. (bleacherreport.com)
  • Ligaments are sturdy bands of tissues that connect bones. (wikipedia.org)
  • placement
  • Certain features of various fixation elements described herein lessen the rotational forces applied during implantation and/or lessen the amount of bone that needs to be removed during placement of the sliding compression screw. (google.es)
  • includes
  • each of said pair of first fasteners includes an interdigitating splined face for mating with said splined surface of a corresponding one of said pair of bone screws to prevent relative rotation between the bone screw and the fastener. (google.com)
  • axis
  • The screw has an axis which is a line in 3D space (not necessarily through the origin, and the screw also has a finite pitch (a fixed translation along its axis corresponding to a rotation about the screw axis. (wikipedia.org)
  • The axis of rotation in the joint is directed upward 42 degrees from the horizontal plane and 16 degrees medially from the midline of the foot. (wikipedia.org)