Abstract
Acetabular bone stock loss represents one of the main challenges in revision hip surgery.
We present 149 consecutive aseptic acetabular reconstructions with impacted bone allograft technique and a cemented cup followed clinically and radiographically for an average of 52 months (range 24–156 months). Patients requiering reinforcement rings were not included in this series. Seven reconstructions in six patients were lost to follow-up.
The average postoperative Merle DAubigne and Postel score was 5.7 points for pain, 4.5 points for mobility and 5.2 points for gait. Radiographic analysis evidenced incorporation of the grafts in all but in four cups with more than 5 mm migration, demonstrating radiographic failure. All of these patients presented clinical failure as well. Non progressive radiolucent lines were observed in 29 non symptomatic patients. mainly in Zone 1 according to De Lee and Charnley. Six patients were reoperated (4.5%), 3 of them because of deep infection and 3 patients for aseptic failure related to massive segmental and cavitary defects. Overall survival rate of the acetabular reconstruction was 95.8% (CI 95%:92.3–99.1). When infected cases were excluded, this rate was 98%.
Providing precise indications, acetabular reconstruction with impacted morsellized bone allografts and cemented cups is an excellent biologic reconstructive technique in patients with bone stock deficiency
Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.
