– Discussion: (see bisphosphonates) – type of aminobisphosphonate (a synthetic analogs of pyrophosphate) which acts as an inhibitor of osteoclast-mediated bone resorption; – due to substantial reduction in bone resorption, bone formation exceeds bone resorption at these remodeling sites, which leads to progressive gains in bone mass; – this … Read more
– Discussion: – adductor pollicis consists of 2 parts, one of which is transverse & other oblique; – transverse head attaches to the volar crest of the 3rd metacarpal; – oblique head attaches to ligaments around capitate, trapezium, and covering of the FCR; – heads … Read more
by William Mallon MD – Skin Incision: – Identification of Radial Nerve: – Identification of 3-4 Interval: – Longitudinal Arthrotomy: – arthrotomy performed just distal to Lister’s tubercle over scapholunate interval; – this should provide clear exposure of scaphoid and lunate; – alternatively, a distally based capsular flap can be … Read more
– Discussion: – AC joint is situated between the clavicle and acromion; – acromion has two ossification centers which fuse at age 22 yrs; – it permits motion in three planes: – AP gliding of acromion during protraction & retraction of scapula; … Read more
– used to evaluate the extent of ligament injury to the A-C joint – Technique: – patient is erect; – 10 to 20 pound wts (depending on patient size) are looped over the patient’s wrists suspending them from the wrists; – these are not to be griped by the … Read more
– Discussion: – see Arthrex, Mitek, Linvatec, Smith-Nephew – in choosing a fixation technqiue consider the need for the following: – circumferential (360 deg) healing of graft against tunnel wall (interference screws do not permit this); – bioabsorbable material … Read more
– See Rotator cuff; – origin: infraspinatus fossa of scapula – insertion: posterior aspect of greater tuberosity of humerus, capsule of shoulder joint; – demensions: infraspinatus has been shown to average 29 mm wide, with a mean medial-to-lateral width of 19 mm – action: extension, horizontal extension and lateral rotation of humerus at the shoulder … Read more
Discussion arises from median nerve, 5 cm above medial epicondyle; runs on volar surface of FDP and along interosseous membrane between ulna & radius; supplies FPL, lateral half of FDP, & pronator quadratus; may supply sensory branches to distal ru and carpal joints; variations: martin gruber anastomosis occurs in 10-15% of all forearms and in … Read more
Total Hip Replacement Menu » Acetabular Component Revision » Discussion indications: salvage device for use in cases of pelvic discontinuity where a stable socket cannot be wedged between the anterior and posterior columns; classification of bone defects and bone grafting options: in almost every case, bone graft is morcelized and placed behind the cup; in … Read more
Discussion total absence of the thumb may be an isolated anomaly, but it is often associated with some other congenital malformation; absent thumb may be inherited as autosomal dominant or may be sporadic; absent thumb is frequently observed in Holt-Oram syndrome, Fanconi’s anemia, and ring D chromosome abnormalities; absent radius is almost always associated with … Read more