– Antebrachial Compartment Syndrome: (see compartment syndrome menu) – causes: – may follow supracondylar fr(x) of humerus, or both bone forearm fractures; – compartment syndromes in the forearm after wrist fractures usually involve the volar compartment; – compartment syndrome monitoring – technique of forearm fasciotomy: (see … Read more
– See Simple Dislocations of the MP joint – Discussion: – by definition, an irreducible MP dislocation; – involves infolding of the proximally disrupted volar plate between metacarpal head and base of proximal phalanx; – complex dislocations occur most commonly in index finger followed in incidence by thumb & … Read more
– Discussion: – pathophysiology: – compartment syndrome is elevation of interstitial pressure in closed fascial compartment that results in microvascular compromise; – as duration & magnitude of interstitial pressure increase, myoneural function is impaired & necrosis of soft tissues eventually develops; – intracompartmental pressure: … Read more
– See: Distal Radius Frx Menu / Intra-Articular Fractures of the Distal Radius – General Discussion: – frx was described by Abraham Colles in 1814, originally described as low energy extra articular frx of distal radius occuring in elderly individuals; – frx is typically dorsally displaced and angulated; – mechanism: – fracture is also caused by … Read more
– See: Nerve Repair: – Discussion: – digit flexors are restored by transferring ECRL to FDP tendons; – FPL is reinforced by Brachioradialis and, in certain instances, the distal joint of the thumb is arthrodesed; – MP joint of the thumb is arthrodesed if this joint is unstable; … Read more
– See: Infections of the Hand – Discussion: – type of web space infection, which involves both palmar and dorsal sides; – frequently arises from a distal palmar callus, but spreads to the dorsal side; – spread of infection is limited by palmarly by the adherence of the palmar … Read more
– Discussion: – historically has yeilded good results in relieving pain; – disadvantages: – thumb shortening and subsidence, weakness of pinch, and decreased ability to adduct the thumb; – Operative Technique: – dorsal longitudinal incision centered over CMC joint; – incision is curved volarly at the base of thenar eminence; – superficial branches of the … Read more
– See: – CMC Joint Instability – Trapezium – Ligament Reconstruction Tendon Interposition – Anatomy of CMC – Arthritis of CMC Joint: – most commonly involved arthritic joint in the hand; – more common in women (upto 1/3 of women over age 40, will have x-ray changes); – may exist in a localized form or … Read more
– See: CMT Menu: – Discussion: – autosomal dominant inheritance; – type-I and III disorders are due to demyelination of peripheral nerves; – clinical presentation is most common during the second decade of life; – due to defect in the gene coding for peripheral myelin protein-22 on chromosome … Read more
– See: CMT Menu: – Discussion: – includes the hypertrophic neuropathy of infancy (Dejerine-Scottas); – autosomal recessive trait; – begins in infancy; – EMG in demyelinating neuropathies: – marked slowing in nerve conduction velocity which is more extensive than those seen in … Read more