Data Trace Editor 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
Discussion it is important that knee joint is extended throughout stance phase; this means that the components are assembled so that a straight line extended fromthe "trochanter" will pass anterior to the knee and through the ankle; friction is adjusted to help control the amount of knee flexion and to help decelerate the shank; mechanical … 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
Development of the design of the WRIGHTLOCK Spinal Fixation System began over eight years ago in conjunction with Dr. Ben Allen, Jr., Chief of Staff at the Shriners Hospital for Crippled Children in Greenville, SC. Its design was based on the need for a spinal system that was both low profile and high strength for … Read more
(see also: Vit D Discussion, Calcitriol/Rocalrol/Calcifediol) Discussion primary function of l,25-Vitamin D3 is to maintain skeletal homeostasis as well as for maintenance of plasma Ca homeostasis; primary effect of lack of Vit D is decrease in miceralization of newly formed bone matrix (osteoid); rate of bone formation is decreased; net result is less total bone … Read more
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