[Fracture of the femoral neck complicating algodystrophy of the hip during pregnancy. Apropos of 2 cases].

The authors report 2 cases of fracture of the femoral neck in pregnant women. This is a serious complication of a poorly understood disease, algodystrophy of the hip during pregnancy (transient osteoporosis of the hip of pregnancy, as referred by Anglo-saxon practitioners), whose main clinical, paraclinical and course characteristics are reported. The risk of subcapital fracture is maximal during the period of term, justifying recumbency in painful forms. In spite of the phantom appearance of the femoral head and neck, this type of fractures should not be confused with tumoral osteolysis, since they always unite within usual intervals.