THR menu / Revision THR acetabular component Discussion note that some of the problems seen in dysplasia are frequently encountered in revision THR; indications for acetabular revision: sepsis, component malposition, impingement, polyethylene wear, pelvic osteolysis, recurrent dislocation, progressive protrusio, and component loosening; evaluation of the painful THR examination: examination for loosening previoius incisions; contracture of … 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
(see also: AKA Prosthesis, Amputations in the Diabetic Patient Discussion average AK amputee walks 43% slower and expends 89% more kcal/min than the normal person; if proximal circulation is adequate, a longer anterior muscle flap may be left and the combination myodesis- myoplasty technique is used; ability to ambulate with a prosthesis depends heavily … Read more
(see also: Upper Extremity Prosthetics) Surgical Considerations consider the Marquardt Osteotomy of the Humerus: supracondylar, to put 15-20 deg of posterior angulation at this site, to facilitate suspension and provide rotational control; distal piece must be at least 5 cm long; stagger the median and ulnar nerve resection levels to avoid a large confluent neuroma
Discussion (see also: rotator cuff) abduction of shoulder is a smooth, integrated motion which has been termed scapulohumeral rhythm by Codman; disruption of this smooth motion is important since asymmetrical movement usually indicates a chronic pathological disorder of the shoulder; there is a 2:1 ratio of movement in GHJ & scapulothoracic joints; clavicle also plays … Read more
Anatomy extensor tunnel I: origin: small facet of ulnar side of the radius near its middle; on lateral side of dorsal surface on body of the ulna just below the insertion of anconeus & interosseous membrane; tunnel: travels thru the first extensor compartment; insertion: most often this tendon inserts onto the APB muscle or it … Read more
origin tuberosity of the scaphoid and the ridge of trapezium; another slip originates from the transverse carpal ligament; insertion Lateral surface of the base of the proximal phalanx of thumb; action abdcution and medial rotation of the metacarpal of the thumb; synergists abductor pollicis longus, EPL; nerve supply median nerve, C8, T1; Discussion although opposition … Read more
(see also: Plantar Muscles of the Foot) Origin medial process of the calcaneus, flexor retinaculum, plantar aponeurosis and intermuscular septum. Insertion joins with the medial tendon of the flexor hallucis brevis into the plantar half of the medial side of the base of the proximal phalanx of the great toe. Action Abducts the great toe … Read more
(see also: Plantar Muscles of the Foot, Innerv. Musc. Lower Limb) Origin: the lateral process of the tuberosity of calcaneus. Insertion: lateral side of the base of the proximal phalanx of the 5th toe. Action: Spreads the 5th toe away from the 4th toe. Nerve Supply: lateral plantar nerve, S1, S2
Anatomy origin: pisiform bone and from the tendon of the FCU ; insertion two slips; into ulnar side of the base of proximal phalanx of little finger; into ulnar border of aponeurosis of extensor digiti minimi expansion of finger extensor tendons; action abducts little finger & helps flex its proximal phalanx at MP joint; synergists … Read more