A 26-year-old woman sustained a traumatic right hip dislocation with posterior wall component in a motor vehicle collision. Initial treatment consisted of open reduction internal fixation of her posterior wall fracture. Six years later, she developed low-energy recurrent hip instability. Imaging demonstrated posterior capsular insufficiency and femoral retrotorsion. The patient underwent intertrochanteric femoral rotational osteotomy. Nine years postoperatively, the patient has returned to activity without restriction or subsequent dislocations.
Recurrent posttraumatic hip instability requires careful identification of the etiology of instability. This case provides long-term follow-up after successful treatment with intertrochanteric femoral rotational osteotomy.