“…Because of the insufficient acetabulum in CDH, most surgeons agree that arthroplasties in these patients require supplementation with bone grafts (Ritter andTrancik 1985, Wolfgang 1990). While the use of bone grafts is an accepted procedure by most surgeons, some doubts remain regarding the bulky cortical cancellous bone grafts, particularly in terms of their long-term behavior (Harris et al 1977, Kwong et al 1993, Hooten et al 1996, Hartofilakidis et al 1996.…”