Acetabular revision with freeze-dried irradiated and chemically treated allograft: a minimum 5-year follow-up of 17 cases

Abstract

We reviewed the results of 17 consecutive revision total hip arthroplasties performed with the use of freeze-dried irradiated bone allograft in 15 patients. These allografts were used in conjunction with five Kerboull rings, two steel meshes and ten cemented isolated cups. All the patients have had a follow-up of at least 5 years. The patients were evaluated clinically and radiographically. No revisions were necessary and X-rays confirmed partial or total ingrowth of the allografts. In acetabular revision surgery, hip reconstruction can be successfully treated by freeze-dried irradiated and chemically treated allografts. Additional studies with longer term follow-up are necessary to confirm this outcome.

Fig. 1

A: Post-operative AP radiograph of the pelvis after allograft with a Kerboull ring. B: Radiographs at 5 years after the revision. The rupture of the ring is observed without instability of the implant

Fig. 2

Radiograph obtained 7 years post-operatively of a patient who had a cemented implant with a metal mesh and allograft. There is a small marginal lucency. The hip continues to function well

Fig. 3

Postoperative AP radiograph of the pelvis showing complete and stable reconstruction of a Type-II defect six years after surgery. The component is stable and well-fixed

Fig. 4

a: Preoperative radiograph of a 56-year-old man who presented a failed cemented total hip arthroplasty on both sides. b: Radiograph obtained at 5-years follow up, the components are stable and well-fixed