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FRACTURE OF THE FEMORAL NECK IN BLACK SOUTH AFRICANS



Abstract

Among elderly Caucasians, fractures of the femoral neck are a common cause of disability. Intertrochanteric and intra-capsular fractures occur equally often, and both are about three times more common in women than in men. Risk factors include neurological impairment, malnutrition, impaired vision, malignancy and decreased activity.

We found that in black South Africans femoral neck fractures occur equally often in men and in women. Intracapsular fractures are comparatively rare, occurring in one of every eight female patients and one of every 3.5 male patients. Further, we found that in both black men and black women the femoral neck was consistently and significantly shorter than in whites.

These results suggest that a short femoral neck may offer protection not only against intracapsular fracture, but also possibly against fracture of the femoral neck in general. In addition, greater cortical thickness in black people probably offers further protection.

The abstracts were prepared by Professor M. B. E. Sweet. Correspondence should be addressed to him at The Department of Orthopaedic Surgery, Medical School, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193 South Africa