Femur. The shaft is fractured obliquely 11 cm from the distal end. Union has not occurred despite the presence of a large amount of callus (FIG. 1) at the ends of both fragments. A sequestrum is...
Femur. Cut surface of the upper femur with acetabulum shows necrosis of medullary tissue (FIG. 1) that extends from the margin of amputation to the mid-portion of the neck.
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