Dysbaric Osteonecrosis

Dysbaric osteonecrosis appears to affect predominantly saturation divers and caisson workers. Again it appears to be the appendicular skeleton that is at risk, particularly the humoral head, femoral head and juxta articular area of the distal femur and proximal tibia. Lesions in proximity to the femoral and humeral head may be symptomatic and may eventually become disabling whereas femoral and tibial shaft lesions remain asymptomatic. The question remains why it is only certain types of diving that predispose to this disease, and why these areas are so uniquely vulnerable 106.

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