– Discusion: – high pressure grease and paint guns are most common cause of injury, & site of injury is often the pad od the thumb or index finger; – severity of injury is often underestimated due to the small punctate entrance wound; – injected substance passes rapidly thru … Read more
– See: TKR following HTO: – Discussion: – indications for HTO: – associated conditions: – posterolateral corner deficiency – osteoarthritis of the knee: – motivation for procedure: – narrowed medial cartilaginous space may regenerate (and associated degenerative features may reverse) if weight bearing stresses are partially shifted from the medial to the lateral side of the … Read more
– For exposure to HBsAg positive materials such as blood contact; – Adult: 0.06ml/kg IM to maximum of 5ml; – w/in 24 hr of needle stick exposure; – w/in 14 days of sexual contact; – Repeat at 1 and 6 months after exposure; – Administered in gluteal or deltoid muscle; – Supplied in vial of … Read more
– Discussion: – screw is threaded at both ends and can be countersunk beneath articular surface, obviating the need for removal after frx has healed; – it is designed to achieve compression by use of a differential thread-pitch between its proximal & distal ends, and it has guiding jig that maintains … Read more
– Discussion: – extraarticular bleeding may involve muscles, nerves, blood vessels, and even bones; – slowly expanding hematoma will interfere w/ function & perfusion of surrounding tissues; – intramuscular hematomas that fail to resorb quickly lead to fibrosis, contracture, cyst formation, or myositis ossificans; – bleeding into the calf muscles may cause a severe equinus … Read more
– See: – Bower’s Procedure – Discussion: – invovles resection of ulnar articular head, leaving shaft and styloid relationship intact; – interpositional anchovy of tendon is placed in cavity to limit contact of radial & ulnar shafts which may migrate to each other after this procedure; … Read more
– See: – Calcinosis: – Hemangioma of bone – Discussion: – a benign, vascular tumor that occurs in children, usually in limbs or trunk; – hemangioma may be congenital, appearing as solitary tumor that infiltrates local tissue & adjacent neurovascular structures; – most common form … Read more
– Discussion: – displaced frx of talar neck (no matter how slight) w/ subluxation or dislocation of posterior facet of sub-talar joint; – subtalar joint subluxation is usually dorsal; – ankle remains aligned; – persistent slight displacement will result in malunion (usually in varus) which will produce … Read more