– Discussion: – is always detached (usually from middle phalanx) in PIP dorsal dislocations; – distal avulsion of volar plate in dorsal PIP dislocations makes entrapment of plate w/in the joint unlikely (in contrast to MP joint in which complex dorsal dislocations prevent closed reduction); … Read more
– See: Compartment Syndrome – Discussion: – type of forearm ischemic contracture resulting from brachial artery injury usually associated w/ supracondylar frx of humerus; – may see loss of motor & sensory function, however, classic involvment is w/ anterior interosseous branch of median nerve; – pathology: … Read more
– 0 – Intact Skin – 1 – Superficial ulcer of skin or subcutaneous tissue – 2 – Ulcers extend into tendon, bone, or capsule – 3 – Deep ulcer with osteomyelitis, or abscess – 4 – Gangrene of toes or forefoot – 5 – Midfoot or hindfoot gangrene
– Discussion: – characterized by frx of volar margin of the carpal surface of the radius which is associated w/ subluxation of radiocarpal joint; – similar to Smith’s type III; – comminuted frx of distal radius may involve either anterior or posterior cortex and … Read more
– See: Carpal Instability – Discussion: – by definition, consists of volar flexion of the lunate relative to the longitudinal axis of the radius and capitate, when the wrist rests in a neutral position; – lunate will tend to flex when there is loss of ulnar support from the triquetrum; … Read more
– Discussion: – exhibit stress / strain behavior that is time-rate dependent, and varies w/ the material, that is a function of the material’s internal friction; – visoelastic materials are stiffer and stronger at high strain rates than at low strain rates; – for example in bone-ligament … Read more
– Discussion: – at 2-4th week of development, sclerotome cells arising from paired somites migrate medially & meet in midline around notochord; – these sclerotome cells separate the notocord from neural tube dorsally and from gut ventrally; – paraxial mesoderm becomes segmented into four cranial and … Read more
– See: – Diskitis – Gun Shot Wounds to the Spine – Tuberculous Spondylitis – Discussion: – in adults, lumbar infections may often originate from urinary tract infections which drain thru Batson’s venous plexus; – respiratory system is also … Read more
– Discussion: – results from supination-adduction fracture (Weber A) – adduction forces result in a vertical fracture of the medial malleolus at the junction of the plafond and malleolus; – transverse fibular frx or tear of lat collat occurs concomitantly; – medial … Read more
– Discussion: – gram-negative facultative coccobacillus – vibrios are among the most common organisms found in waters in US and around the world; – in the US these infections occur mainly on the gulf coast and southern atlantic seaboard; – these organisms tend … Read more