– See: Flexor Pollicis Longus: – Discussion: – rupture of the flexor pollicis longus tendon is common in RA; – etiology: – rupture of FPL occrus as result of attrition over scaphoid (osteophyte), which had eroded through volar wrist capsule; – arises from … Read more
– Anatomy: – origin: distal 2/3 of posterior fibula, interosseous membrane and adjacent intermuscular septum; (see deep posterior compartment) – tendon passes through posterior aspect of fibro-osseous tunnel, plantar midfoot (knot of Henry); – insertion: – plantar surface of base of distal phalanx … Read more
– See: Forearm Flexors – Discussion: – origin: medial epicondyle of humerus; – anatomy at the wrist: – when pt flexes wrist & radially deviates his hand, tendon becomes prominent next to the palmaris longus; – FCR lies radial to the … Read more
– See: Forearm Flexors – Anatomy: – origin: 2 heads from medial epicondyle of humerus & medial border of olecranon; – insertion: palmar surface of pisiform, hamate, and bases of 5th metacarpal; – action: flexes and adducts the hand at the wrist; – synergists: flexor carpi radialis; … Read more
– See: boutonniere injury – Discussion: – flexion contracture: – treatment should start with static or dynamic splinting; – in the study by Bruser, et al (1999), a midlateral incision yielded a more normal ROM than a palmar incision; … Read more
– Finkelstein’s test: – ask patient to make a fist over his thumb, and ulnarly deviating wrist – sharp pain at this site is produced by active extension and abduction of the thumb against resistance; – Differential Diagnosis: – DeQuervain’s tenosynovitis must be differentiated from degenerative arthritis & trapeziometacarpal joint; … Read more
– Discussion: – the two incision (“backdoor”) approach has remained the gold standard for ACL reconstruction, because it is the only technique which can reliably position the femoral tunnel at the 10 o’clock (or 2 o’clock) position (which is necessary for anatomic reconstruction); … Read more
– 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 … 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
– 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