– See: Phalangeal Injury – Mechanism: – results from forceful hyperextension of DIP joint w/ FDP in maximal contraction; – classic examples include pts injured by the sudden jerk of a rope, such as starting a lawnmower or retraining an animal; – tendon may rupture directly from its insertion into bone, or it … Read more
– Anatomy: – transports APL & EPB tendons; – these tendons represent the radial border of the anatomic snuff box; – when pts thumb is extended, you can distinguish between the tendons as they exit the tunnel; – near insertions of tendons, distal to the tunnel, … Read more
– See: Extensor Tendon Rupture in RA – Discussion: – this tendon is prone to rupture from synovitis and increases friction at Lister’s tubercle second to diseases such as RA and Lupus; – EPL is tendon that is most frequently ruptured from distal radius frx; – if … Read more
– Anatomy: – extensor tunnel I – origin: – posterior side at the distal end of the body of both the ulna and radius near their middle; – insertion: – posterior surface of the base of the proximal phalanx of thumb; … Read more
– See: Forearm Extensors : – Anatomy: – origin: 2 heads from lateral epicondyle & middle 1/3 of posterior ulna; – insertion: – posterior surface of base of 5th metacarpal; – ECU is the only wrist extensor that lies in its own fibro-osseus tunnel; – action: extends and adducts the hand at the wrist; – … Read more
– See: Forearm Extensors: – Anatomy: – origin: common extensor tendon off lateral epicondyle; – insertion: tendon of extensor digitorum at proximal phalanx of little finger & into dorsal expansion of finger extensor tendons; – action: – extends proximal phalanx of little finger at MP … Read more
– Discussion: – radial head frx plus dislocation of distal RU joint (& interosseous membrane disruption); – mechanism: fall from height; – in this type of frx, radius will also migrate proximally if radial head is excised; – if injury is not found when it is acute, pt may develop severe wrist pain from radial migration … Read more
Female soccer and basketball players have the highest rates of ACL injuries Female soccer players have more non contact ACL injuries than male soccer players Male and female basketball players have similar rates of contact and non contact ACL injuries The rates of ACL injuries can be reported as injuries/1000 hrs of exposure or injuries/exposure … Read more
– Discussion: – RA manifests itself in many ways in elbow joint, including nodules and bursae, synovitis, progressive joint destruction, antecubital cysts, & ulnar or, rarely posterior interosseous palsy; – note that involvement of the RA elbow is infrequently an isolated and therefore it is important to consider possible involvement in the wrist … Read more