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Cementless Acetabular Reconstruction After Acetabular Fracture
Carlo Bellabarba, MD; Richard A. Berger, MD; Christian D. Bentley, MD; Laura R. Quigley, MS, RN; Joshua J. Jacobs, MD; Aaron G. Rosenberg, MD; Mitchell B. Sheinkop, MD; Jorge O. Galante, MD
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Investigation performed at Rush-Presbyterian-St. Luke’s Medical Center, Chicago, Illinois
Carlo Bellabarba, MD
Department of Orthopaedics, University of Washington/Harborview Medical Center, 325 Ninth Avenue, Seattle, WA 98104. E-mail address: cbella@u.washington.edu

Richard A. Berger, MD
Christian D. Bentley, MD
Laura R. Quigley, MS, RN
Joshua J. Jacobs, MD
Aaron G. Rosenberg, MD
Mitchell B. Sheinkop, MD
Jorge O. Galante, MD
Department of Orthopaedic Surgery, Rush-Presbyterian-St. Luke’s Medical Center, 1653 West Congress Parkway, Chicago, IL 60612. E-mail address for R.A. Berger: rberger@ortho4.pro.rps/mc.edu. E-mail address for C.D. Bentley: xnbentley@yahoo.com. E-mail address for L.R. Quigley: lquigley@rush.edu. E-mail address for J.J. Jacobs: jjacobs@rush.edu. E-mail address for A.G. Rosenberg: aarongbone@aol.com. E-mail address for M.B. Sheinkop: ezaca@aol.com. E-mail address for J.O. Galante: jgalante@aol.com

One or more of the authors has received or will receive benefits for personal or professional use from a commercial party related directly or indirectly to the subject of this article. No funds were received in support of this study.

A video supplement to this article is available from the Video Journal of Orthopaedics. A video clip is available at the JBJS web site, www.jbjs.org. The Video Journal of Orthopaedics can be contacted at (805) 962-3410, web site: www.vjortho.com.

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J Bone Joint Surg Am, 2001 Jun 01;83(6):868-876
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Abstract

Background: Total hip arthroplasty in patients with posttraumatic arthritis has produced results inferior to those in patients with nontraumatic arthritis. The use of cementless acetabular reconstruction, however, has not been extensively studied in this clinical context. Our purpose was to compare the intermediate-term results of total hip arthroplasty with a cementless acetabular component in patients with posttraumatic arthritis with those of the same procedure in patients with nontraumatic arthritis. We also compared the results of arthroplasty in patients who had had prior operative treatment of their acetabular fracture with those in patients who had had prior closed treatment of their acetabular fracture.

Methods: Thirty total hip arthroplasties were performed with use of a cementless hemispheric, fiber-metal-mesh-coated acetabular component for the treatment of posttraumatic osteoarthritis after acetabular fracture. The median interval between the fracture and the arthroplasty was thirty-seven months (range, eight to 444 months). The average age at the time of the arthroplasty was fifty-one years (range, twenty-six to eighty-six years), and the average duration of follow-up was sixty-three months (range, twenty-four to 140 months). Fifteen patients had had prior open reduction and internal fixation of their acetabular fracture (open-reduction group), and fifteen patients had had closed treatment of the acetabular fracture (closed-treatment group). The results of these thirty hip reconstructions were compared with the intermediate-term results of 204 consecutive primary total hip arthroplasties with cementless acetabular reconstruction in patients with nontraumatic arthritis.

Results: Operative time (p < 0.001), blood loss (p < 0.001), and perioperative transfusion requirements (p < 0.001) were greater in the patients with posttraumatic arthritis than they were in the patients with nontraumatic arthritis. Of the patients with posttraumatic arthritis, those who had had open reduction and internal fixation of their acetabular fracture had a significantly longer index procedure (p = 0.01), greater blood loss (p = 0.008), and a higher transfusion requirement (p = 0.049) than those in whom the fracture had been treated by closed methods. Eight of the fifteen patients with a previous open reduction and internal fixation required an elevated acetabular liner compared with one of the fifteen patients who had been treated by closed means (p = 0.005). Two of the fifteen patients with a previous open reduction and internal fixation required bone-grafting of acetabular defects compared with seven of the fifteen patients treated by closed means (p = 0.04).

The thirty patients treated for posttraumatic arthritis had an average preoperative Harris hip score of 41 points, which increased to 88 points at the time of follow-up; there was no significant difference between the open-reduction and closed-treatment groups (p = 0.39). Twenty-seven patients (90%) had a good or excellent result. There were no dislocations or deep infections. The Kaplan-Meier ten-year survival rate, with revision or radiographic loosening as the end point, was 97%. These results were similar to those of the patients who underwent primary total hip arthroplasty for nontraumatic arthritis.

Conclusions: The intermediate-term clinical results of total hip arthroplasty with cementless acetabular reconstruction for posttraumatic osteoarthritis after acetabular fracture were similar to those after the same procedure for nontraumatic arthritis, regardless of whether the acetabular fracture had been internally fixed initially. However, total hip arthroplasty after acetabular fracture was a longer procedure with greater blood loss, especially in patients with previous open reduction and internal fixation. Previous open reduction and internal fixation predisposed the hip to more intraoperative instability but less bone deficiency.

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    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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