Anterior Dislocation After Total Hip Arthroplasty: A Rare Complication
Abstract Anterior dislocation after total hip arthroplasty (THA) is a rare event and its treatment protocol is controversial. The most important factor responsible for this complication is malposition of the components. We present a rare case of early anterior dislocation after THA in a 72-year female due to excessive anteverted position of the acetabulum socket as confirmed by radiological evaluation. Closed reduction was not successful. Revision surgery with correction of acetabulum cup version and inclination within the ‘safe zone’ resulted in excellent stability of prosthesis intra-op which even precluded the use of advanced implant designs such as constrained liners. At one-year follow-up, the patient is mobilized with a walking stick and has no recurrence of dislocation. This highlights the role of proper implant positioning which can reduce the complexity of the surgical procedure and provide good functional outcome in such catastrophic events.