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Cementless Acetabular Revision with the Harris-Galante Porous ProsthesisResults After a Minimum of Ten Years of Follow-up
Brian R. Hallstrom, MD1; Gregory J. Golladay, MD2; David A. Vittetoe, MD3; William H. Harris, MD4
1 Orthopaedic Surgery Associates, 5315 Elliott Drive, Suite 301, Ypsilanti, MI 48197
2 Chelsea Orthopaedics, 775 South Main Street, Chelsea, MI 48118
3 Des Moines Orthopaedic Surgeons, 1301 Pennsylvania Avenue, Suite 213, Des Moines, IA 50316
4 Orthopaedic Biomechanics and Biomaterials Laboratory, Massachusetts General Hospital, 55 Fruit Street, GRJ 1126, Boston, MA 02114. E-mail address: wharris.obbl@partners.org
View Disclosures and Other Information
In support of their research or preparation of this manuscript, one or more of the authors received grants or outside funding from the William H. Harris Foundation. In addition, one or more of the authors received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity (Zimmer). Also, a commercial entity (Zimmer) 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.
Investigation performed at the Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

The Journal of Bone and Joint Surgery, Incorporated
J Bone Joint Surg Am, 2004 May 01;86(5):1007-1011
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Background: Revisions of the acetabular component of a total hip arthroplasty have a higher rate of complications, particularly loosening and dislocation, than do primary procedures. The purpose of this study, in which the results of a consecutive series of revisions performed with the Harris-Galante Porous acetabular component by a single surgeon were evaluated at an average of twelve years, was to quantify the complications and outcomes of acetabular revision.

Methods: Clinical and radiographic results were evaluated to assess loosening, lysis, radiolucencies, and trochanteric union in 188 hips (170 patients) treated between 1984 and 1990. One hundred and twenty-two hips in 110 patients were followed for at least ten years, which was required for inclusion in the study. Thirty-one patients (thirty-six hips) died less than ten years postoperatively, and twenty-nine patients (thirty hips) were lost to or refused to return for follow-up.

Results: The average Harris hip score was 78 points at an average of 12.5 years after revision, which was a 29-point improvement compared with the preoperative score. The rate of repeat revision because of aseptic loosening of the acetabular shell was 4% (five of 122). The rate of repeat revision of the shell for any reason was 15% (eighteen of 122). Eight unrevised sockets were loose radiographically, for a total rate of aseptic loosening of 11% (thirteen of 122).

Conclusions: This study demonstrated that most acetabular revisions with this cementless hemispherical socket were successful. Few structural grafts and no cages were used.

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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    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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