Acetabular reconstruction using morcellised bone with ring support--medium-term results at three to nine years

Area of Science:

• Orthopedic Surgery
• Biomaterials Engineering

Background:

• Significant acetabular bone loss presents a major challenge in hip arthroplasty, particularly during revision procedures.
• Reconstruction or reinforcement rings, combined with morcellized bone graft, are utilized to restore bone stock in moderate to severe cases.

Purpose of the Study:

• To evaluate the safety and efficacy of using Contour titanium acetabular rings with morcellized bone graft in hip arthroplasty with acetabular bone loss.
• To assess graft incorporation, implant stability, and complication rates in a single-surgeon series.

Main Methods:

• A retrospective review of 45 hip arthroplasties (6 complex primary, 39 revision) using Contour titanium acetabular rings and morcellized bone graft over a 5-year period.
• Mean follow-up of 85 months, with clinical evaluation of 26 hips from 23 available patients.

Main Results:

• Forty of 45 grafts (89%) healed uneventfully with good incorporation.
• Two cases (4.4%) showed radiological loosening, both of which were associated with infection.
• No loosening was observed in cases without infection.

Conclusions:

• The use of Contour titanium acetabular rings with morcellized bone graft is a safe and effective technique for managing acetabular bone loss in hip arthroplasty.
• This method demonstrates a low rate of complications, particularly when infection is absent.