Arthroplasty in high grade congenital hip dislocation: personal experience and review of the literature

Total hip arthroplasty (THA) in congenital high grade hip dislocation often represents a problematic issue. Reviewing their selected cases and literature data, authors focus on some key points for this demanding surgery. Most important steps are acetabular positioning and surgical approach (exposure and release). We used two different cups, the Zweymuller and the Wagner cup, with good primary stability. A Conus stem (Wagner) or an Alloclassic stem (in less displastic femoral shape) were used. We always performed this surgery as a one step procedure. In the same cases a shortening femoral osteotomy was performed to allow refractory reduction. Possible complications are discussed.