The Journal of Bone and Joint Surgery (American) 85:647-652 (2003)
© 2003 The Journal of Bone and Joint Surgery, Inc.
Acetabular Revision with Impacted Morselized Cancellous Bone Graft and a Cemented Cup in Patients with Rheumatoid Arthritis
Three to Fourteen-Year Follow-up
B. Willem Schreurs, MD, PhD,
Truike M. Thien, MD,
Maarten C. de Waal Malefijt, MD, PhD,
Pieter Buma, PhD,
René P.H. Veth, MD, PhD and
Tom J.J.H. Slooff, MD, PhD
Investigation performed at the Department of Orthopaedic Surgery, University Medical Centre Nijmegen, Nijmegen, The Netherlands
B. Willem Schreurs, MD, PhD
Truike M. Thien, MD
Maarten C. de Waal Malefijt, MD, PhD
Pieter Buma, PhD
René P.H. Veth, MD, PhD
Tom J.J.H. Slooff, MD, PhD
Department of Orthopaedic Surgery, University Medical Centre Nijmegen, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands. E-mail address for B.W. Schreurs: b.schreurs{at}orthop.umcn.nl
The authors did not receive grants or outside funding in support of their research or preparation of this manuscript. They did not receive payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. A commercial entity (Stryker Howmedica Osteonics) paid or directed, or agreed to pay or direct, benefits to a research fund, foundation, educational institution, or other charitable or nonprofit organization with which the authors are affiliated or associated.
Background: Acetabular revision in patients with rheumatoid arthritis is often difficult because of the poor quality and quantity of the acetabular bone stock. The purpose of this study was to evaluate the midterm clinical and radiographic outcomes of acetabular revision with use of an impaction bone-grafting technique and a cemented polyethylene cup.
Methods: Thirty-five consecutive acetabular revisions were performed with impaction bone-grafting and use of a cemented cup in twenty-eight patients with rheumatoid arthritis. The average age at the revision was fifty-seven years. The minimum duration of follow-up of all reconstructions that were still functioning or that were followed until the time of death was three years (mean, 7.5 years; range, three to fourteen years). No patient was lost to follow-up, but five patients (six hips) died before the time of the review. The acetabular bone defects were classified as cavitary in twelve hips and as combined segmental-cavitary in twenty-three.
Results: The five patients (six hips) who died had been doing well at the time of their latest follow-up. Of the remaining patients, six (six hips) had a repeat revision. The average Harris hip score of the living patients with a surviving implant at the time of follow-up was 82 points, and there was no or only mild pain in twenty-one of the twenty-three hips. Radiographic analysis of all twenty-nine hips that had not been revised showed loosening in one hip and a nonprogressive radiolucent line in one zone in two others. Kaplan-Meier analysis demonstrated a prosthetic survival rate, with aseptic loosening as the end point, of 90% at eight years.
Conclusion: Acetabular revision with impaction bone-grafting and a cemented cup in patients with rheumatoid arthritis had acceptable results at an average of 7.5 years postoperatively.
Level of Evidence: Therapeutic study, Level IV (case series [no, or historical, control group]). See Instructions to Authors for a complete description of levels of evidence.

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