– See: Distal Phalangeal Frx Mallet Finger – Discussion: – may result from forceful hyper-extension; – displaced frx fragment moves volarly with the distal phalanx w/ DIP flexion – diff dx: dorsal DIP dislocation; – indications for treatment: – … Read more
– See: – Ankle Frx – Syndesmotic Injury – Weber C Frx – Discussion: – a proximal fracture of fibula resulting from external rotation; – there are variations in … Read more
– Discussion: – malignant hyperthermia of anesthesia is autosomal dominant condition; – it is rare disorder that appears to involve excessive release of calcium from sarcoplasmic reticulum in response to anesthetic agents; – neuromuscular pts (eg DMD), esp those with are more susceptible to malignant hyperthermia, a chemically induced genetic myopathy; … Read more
– Discussion: – a hamartomatous enlargement of soft tissue & underlying bone; – can be static, growing commensurately w/ hand, or progressive, growing faster than the rest of the hand; – involvement in the hand is more common than involvement in the foot; – “nerve territory-oriented macrodactyly”: … Read more
– Discussion: – known as carpus curves, is result of epiphyseal arrest on ulnar & volar half of the distal radius, which causes articular surface to be directed ulnarward and volarward; – genetics: it is inhertited as autosomal dominant trait w/ variable expressivity; – females are affected four … Read more
– Discussion: – lunate shaped spacer implant made of silicone, vitallium, acrylic, or rolled-tendon is inserted into theresulting space to prevent migration of other carpal bones; – due to the high rate of synovitis, most surgeons are now reluctant to use lunate implants; – Technical Considerations: – dorsal approach is … Read more
– See: Triquetrium – Lunotriquetral Dissociation: – ulnar side carpal instability; – involves disruption of lunotriquetral & volar radiolunotriquetral ligaments & attentuation or rupture of dorsal radiotriquetral attachments; – w/ a isolated tear of the LT interosseous ligament, there will be only a small amount of increased motion, however, … Read more
– See: – Bunnel Test for Intrinsic Tightness: – Lumbricals: – Discussion: – this is manifested by intrinsic plus attitude in involved finger on attempted flexion: (w/ MP flexion there will be IP extension); – FDP becomes an extensor of the PIP joint; – when FDP relaxes FDS can … Read more
– See: – Bunnel Test for Intrinsic Tightness: – Extensor Mechanism of Digits – Lumbrical Muscle Sheaths – Lumbical Plus Finger: – Origin: – tendons of FDP tendon in center of palm, just proximal to the flexor sheath and the A1 … Read more