Stress Fracture of the Femoral Neck in Patient With Excessive Acetabular Anteversion and Coxa Profunda: A Case Report

The underlying pathomechanisms of stress fracture of the femoral neck remains unclear. Repeated or vigorous exercise or insufficient bone strength was known to be a causing factor. Recently, femoroacetabular impingement (FAI) by abnormal contact between acetabular rim and femoral head-neck is possibly known to cause a stress fracture of femoral neck. We experienced a rare case of stress fracture of femoral neck in 59-year-old patient with increased acetabular anteversion and coxa profunda. Focal or general over-coverage of femoral head by acetabulum which might evoke repeated collision between acetabulum and femoral neck caused stress fracture of femoral neck. doi: http://dx.doi.org/10.4021/jmc1236w