• The major stabilizer to varus stress (ie, toward the body) is the lateral collateral ligament complex. (medscape.com)
  • 3 Other diagnoses for elbow pain include olecranon bursitis, biceps tendinitis, ulna and radial collateral ligament sprain, and degenerative arthritis. (caringmedical.com)
  • The elbow joint is stabilized by the ulnar (medial) collateral ligament, the lateral collateral ligament, and the annular ligament. (orthopaedia.com)
  • Injuries to the lateral collateral ligament are often the result of acute high energy trauma (such as an elbow dislocation). (orthopaedia.com)
  • The annular ligament is red, the lateral ulnar collateral ligament is black, and the radial collateral ligament is purple. (orthopaedia.com)
  • The lateral collateral ligament is actually complex, including both a lateral radial collateral ligament and a lateral ulnar collateral ligament. (orthopaedia.com)
  • The lateral ulnar collateral ligament is the primary stabilizer to varus stress. (orthopaedia.com)
  • Injury to the lateral collateral ligament is most often caused by an elbow dislocation. (orthopaedia.com)
  • Figure 1B) Supination averages 50° in dogs and stresses the lateral collateral ligament, while (Figure 1C) pronation averages 30° in dogs and stresses the medial collateral ligament. (cliniciansbrief.com)
  • Jobe et al first described double-strand reconstruction of the ulnar collateral ligament (UCL) with use of a free tendon graft that was secured to the medial epicondyle and the proximal aspect of the ulna in a figure-eight fashion. (medscape.com)
  • During the throwing motion, high loads of valgus stress on the elbow joint results in tension on the medial structures (ie, medial epicondyle, medial epicondylar apophysis, and medial collateral ligament [MCL] complex) and compression of the lateral structures (ie, radial head and capitellum). (medscape.com)
  • PLRI or Posterolateral rotatory instability is caused by the incompetence of LUCL (Lateral ulnar collateral ligament). (epomedicine.com)
  • Ball of crap #2 occurs at the lateral epicondyle, where you have the common extensor tendon, which is shared by extensor carpi radialis brevis, extensor carpi ulnaris, supinator, extensor digitorum, and extensor digiti minimi - with the extensor carpi radialis longus attaching just superiorly on the lateral supracondylar ridge. (ericcressey.com)
  • It originates on the lateral humeral epicondyle and inserts on the ulna. (orthopaedia.com)
  • The lateral epicondyle is the outside bony portion of the elbow where large tendons attach to the elbow from the muscles of the forearm. (medicinenet.com)
  • Radiographs of the wrist showed an enlarged lateral half of the distal ulnar epiphysis. (ispub.com)
  • After closed reduction and external fixation (CREF), the anterior-posterior (AP) and lateral radiographs showed unchanged multiplanar displacement with complete DRUJ incongruity due to a pronounced radial shortening of 7 mm, severely destroyed radial articular surface, and excessive substantial dorsal tilt of 40° (Figure 2(b) ). (hindawi.com)
  • Fig 4ab: Preoperative craniocaudal and lateral radiographs of the left antebrachium showing periarticular subchondral erosions and valgus deformity. (aofoundation.org)
  • u003c/p\u003e","gb":"\u003cp\u003eAP and lateral radiographs of the elbow reveal elbow dislocation with a posterolateral displacement of the radius and ulna with an intra-articular radial head fracture. (radiopaedia.org)
  • u003c/p\u003e","gb":"\u003cp\u003eAP and lateral radiographs after reduction of elbow displacement. (radiopaedia.org)
  • AP and lateral radiographs after reduction of elbow displacement. (radiopaedia.org)
  • Left elbow radiographs revealed left lateral elbow luxation. (cliniciansbrief.com)
  • 1 , 2 Although nondisplaced, or minimally displaced, fractures of the radius and ulna usually can be managed by family physicians, it is important to identify fractures that require referral to an orthopedist. (aafp.org)
  • The radius and ulna usually luxate laterally because the large medial aspect of the humeral condyle generally prevents medial luxation. (cliniciansbrief.com)
  • Fractures of the radius and ulna are the most common fractures of the upper extremity, with distal fractures occurring more often than proximal fractures. (aafp.org)
  • A fall onto an outstretched hand is the most common mechanism of injury for fractures of the radius and ulna. (aafp.org)
  • Isolated midshaft ulna (nightstick) fractures are often caused by a direct blow to the forearm. (aafp.org)
  • Combined fractures involving both the ulna and radius generally require surgical correction. (aafp.org)
  • The most common radius and ulna fractures, with a summary of their management and indications for referral, are shown in Table 1 . (aafp.org)
  • For example, fractures of the radius and ulna are very common in small breed dogs, yet besides the small size of the bones, it is also known that there can be a decrease in vascular density to the distal radius in these dogs compared with normal sized dogs. (aofoundation.org)
  • Essex-Lopresti fracture-dislocation is a rarely associated injury of radial head fractures, which characterized by rupture of the interosseous membrane (IOM) between radius and ulna and rupture of the triangular fibrocartilage complex. (radiopaedia.org)
  • A Monteggia fracture is defined as a one-third fracture of the ulna with radial head dislocation [1] . (physio-pedia.com)
  • This defines a set of traumatic injuries having in common a Monteggia fracture with the dislocation of the radial head either in anterior, posterior or lateral directions. (physio-pedia.com)
  • Type I:Anterior radial head dislocation and fracture of ulna diaphysis with anterior angulation. (physio-pedia.com)
  • Type III: lateral or anterolateral radial head dislocation and fracture of ulna metaphysis. (physio-pedia.com)
  • Type IV: Anterior radial head dislocation and fracture of proximal third of ulna and radius. (physio-pedia.com)
  • Anteroposterior and lateral views will help to identify the type of fracture. (physio-pedia.com)
  • Jara was diagnosed to have suffered from "fracture, shaft of left ulna and left fibula. (lawphil.net)
  • The patient was an approximately 2-year-old 1.5 kg miniature poodle with a radius and ulna fracture of the left thoracic limb. (aofoundation.org)
  • Figure 1: This image shows the pattern of stress fracture radiating from part of the coronoid process of the Ulna The thinner of two bones between the elbow and wrist, the thicker being the radius." class="glossaryLink ">ulna . (fitzpatrickreferrals.co.uk)
  • In Monteggia fracture-dislocations, anatomical reduction and stable fixation of the ulna are mandatory, to ensure stable relocation of the radial head. (aofoundation.org)
  • The coronoid process is a triangular eminence projecting forward from the upper and front part of the ulna. (theodora.com)
  • The notch is concave from above downward, and divided into a medial and a lateral portion by a smooth ridge running from the summit of the olecranon to the tip of the coronoid process. (theodora.com)
  • Olecranon process consists of bone of proximal ulna from base of coronoid process (down arrow) proximally. (medscape.com)
  • In comparison, the elevation of the coronoid process in relationship with the ulna in elbows with FCP has been reported to vary between 1 and 2 mm (Wind 1986, Trostel et al . (vin.com)
  • 1 Lateral epicondylitis (tennis elbow) is the most common form of elbow pain and the most common reason patients with elbow pain come to a physician's office. (caringmedical.com)
  • Epicondylitis is an acute injury that results in inflammation and is usually the result of large valgus forces with medial distraction and lateral compression. (caringmedical.com)
  • The treatment of lateral epicondylitis may include ice packs, resting the involved elbow, and anti-inflammatory medications. (medicinenet.com)
  • The ulna (Figs. 212, 213) is a long bone, prismatic in form, placed at the medial side of the forearm, parallel with the radius. (theodora.com)
  • The olecranon (/oʊˈlɛkrənɒn/, from Greek olene 'elbow', and kranon 'head'), is a large, thick, curved bony eminence of the ulna, a long bone in the forearm that projects behind the elbow. (wikipedia.org)
  • There was bone loss at the distal ulna, most likely due to stress shielding. (aofoundation.org)
  • The fibula was a long bone (44.00 ± 0.41 cm) lying along the lateral surface of the tibiotarsus. (biomedcentral.com)
  • the clavicle was absent, the coracoid bone was composed of a sternal wing and scapular wing, the ulna was slightly longer in length than the radius. (biomedcentral.com)
  • All both bone forearm (BBFA) and radius or ulna primary and secondary injuries were included. (bvsalud.org)
  • Alteration in the shape of the trochlea changes the angle of articulation with the ulna, resulting in increased elbow angulation. (slideshare.net)
  • A . Lateral view of the elbow demonstrating bony landmarks and articulations. (mhmedical.com)
  • As its name implies, the annular ligament forms a ring that surrounds the radial head, allowing the radius to twist relative to the ulna at the proximal radioulnar joint. (orthopaedia.com)
  • Once operative fixation of the ulna has been completed, the surgeon must ensure the stability of the reduced radial head, preferably under image intensification. (aofoundation.org)
  • In cases of persisting radial head instability after anatomical fixation of the ulna, interposed annular ligament or the torn joint capsule is usually the cause and should be extracted from the joint and sutured. (aofoundation.org)
  • After fixation of the ulna, check the position of the radial head, which reduces in most cases spontaneously. (aofoundation.org)
  • access the anteriorly dislocated radial head with a lateral approach. (aofoundation.org)
  • Be aware that malreduction of the ulna will lead to insufficient spontaneous anatomical reduction and/or instability of the radial head. (aofoundation.org)
  • Excessive valgus with lateral dislocation of the patella may occur. (medscape.com)
  • The distal radius is articulated with a scaphoid at its lateral part and medially it connects with the lunate. (physio-pedia.com)
  • The authors of this study compared three mediolateral (45°, 90° and 135° of flexion) and three cranio-caudal views, and concluded that elbow congruity was best assessed on a 90° flexed lateral projection with the beam centered over the joint (Murphy et al . (vin.com)
  • Lateral pivot shift test (O'Driscoll) reproduces instability with combination of supination, axial loading and valgus loading as elbow is brough from full extension to 40 degrees of flexion. (epomedicine.com)
  • There are19 bilateral points on the small intestine channel: 8 on the lateral aspect of the posterior upper limb, 7 on the shoulder and back, and 4 on the head and neck. (chinesemed.com.cn)
  • Degenerative joint disease secondary to elbow dysplasia is mainly evaluated on hyperflexed lateral, cranio-caudal and craniolateral / caudomedial 15°oblique views. (vin.com)
  • Progressive lateral bowing of the femur and tibia. (pmmonline.org)
  • [ 3 ] In complete extension, the boney prominence on the upper end of the ulna, the olecranon, ensures stability by docking into the olecranon fossa. (medscape.com)
  • The height of the distal ulnar epiphysis was more than the styloid process of the ulna. (ispub.com)
  • At the 1-year follow-up, there were no changes in position of either implant without signs of loosening, no impingement, and no instability of the distal radioulnar joint or the distal ulna stump. (hindawi.com)
  • Ball of crap #3 can be found posteriorly, where the three heads of the triceps converge to attach on the olecranon process via a common tendon, with the much smaller anconeus running just lateral to the olecranon process. (ericcressey.com)
  • to the lateral border of this tuberosity the oblique cord is attached. (theodora.com)
  • An UAP is best visualized on a lateral hyperflexed radiograph. (vin.com)
  • The olecranon is a large, thick, curved eminence, situated at the upper and back part of the ulna. (theodora.com)
  • This fibrous covering is formed by the blending of fibers in the lateral ligaments, the elbow capsule, and some triceps fibers that blend with the periosteum. (medscape.com)
  • The triceps inserts into the posterior third of the olecranon and proximal ulna. (medscape.com)