Subtrochanteric stress fractures in runners

Abstract
Seven college track team members with stress frac tures in the subtrochanteric area of the femur were diagnosed using x-ray films and bone imaging. One, with repeated negative x-ray films, was considered to have a stress reaction. Suspected causes for this high incidence of subtrochanteric stress fractures include a change in running surfaces and an exercise called bounding (repetitive jumps with or without weights). The implementation of bone scanning and its useful ness after failure of conservative treatment is empha sized. A discussion of the continuum of stress reaction and the seven cases, diagnoses, treatments, and re sults are presented.

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