– Terminal Devices: – Functional Hooks vs. Cosmetic Hands; – Hooks: Voluntary opening vs closing: – voluntary opening: – more popular & are recognized by their numbers of rubber bands (# is proportional to pinch strength, w/ 3 bands equal to about … Read more
– Discussion: – upper extremities are involved in as many as two-thirds of pts who have peripheral neuropathy, but the involvement tends to be milder & to become clinically symptomatic at later age than does involvement of the lower extremities; – intrinsic-minus hands develop with decreased stability
– See: – Amputation of the Finger and Hand: – Above-Elbow Amputation – Below-Elbow Amputation – Upper Extremity Prosthetics: – Wrist Disarticulations – General Considerations: – Disability: – loss of one upper extremity … Read more
– See: Radiographic Findings – Unstable Frx Patterns: – Barton’s frx, Radial-styloid frx, and Smith’s frx, will often be unstable; – dorsal angulation: > initial 20 deg implies instability; – radial shortening of 5 mm or more; – articular frxs that involve radiocarpal joint; … Read more
– Discussion: – unicompartmental arthroplasty serves a specific nitch for knees that are too severe for arthroscopic management of medial DJD (see mosaicplasty) but are not severe enough for total knee replacement; – best indications: – UKR for patients with partial thickness cartilage loss in the affected compartment. – The implications of damage to the lateral … Read more
– Discussion: – distal radioulnar subluxation/dislocation (see TFC Injury) – tear of the lunotriquetral – ulnocarpal impingement syndromes – pisotriquetral osteoarthritis – pisotriquetral loose bodies – subluxation/dislocation of the pisiform – fractures (ulnar styloid Process) – chondromalacia – calcific tendinitis – medial carpal instability – radioulnar arthritis – subluxation of the ECU The ulnar impaction … Read more
– See: RU joint – Discussion: – refers to impingement of the ulnar head against the carpi which can lead to TFCC tears and lunotriquetral ligament attrition; – lunotriquetral ligament attrition may occur from compression and translation shear as the lunate becomes impinged against the ulnar head; – causes: … Read more
– Discussion: – impingement of distal ulna on carpi which may arise from positive ulnar variance or non union of distal ulnar frx; – positive ulnar varience leads to loading of the ulnocarpal joint and resultant LT disruption, lunate chondral lesion, and TFCC tears; – diff dx: (ulnar sided … Read more
– Discussion: – osseous related pain: – hamate fracture – pisiform fracture – ulnar styloid frx – base of the fifth metacarpal – TFCC – radioulnar joint – … Read more
– Anatomy: – Tunnel V: – overlies distal ends of radioulnar articulation on dorsum of wrist, contains EDM; – Tunnel VI: – in groove between the apex of ulnar styloid process & ulnar head, contains ECU tendon which is palpable from … Read more