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Total hip arthroplasty using a short, metaphyseal-fitting anatomic cementless femoral component in patients with femoral head osteonecrosis who are less than 30 years old

Title
Total hip arthroplasty using a short, metaphyseal-fitting anatomic cementless femoral component in patients with femoral head osteonecrosis who are less than 30 years old
Authors
Kim Y.-H.Park J.-W.Kim J.-S.
Ewha Authors
김영후김준식박장원
SCOPUS Author ID
김영후scopus; 김준식scopus; 박장원scopus
Issue Date
2013
Journal Title
Total Hip Arthroplasty: Tribological Considerations and Clinical Consequences
Publisher
Springer-Verlag Berlin Heidelberg
Indexed
SCOPUS scopus
Abstract
Background: The studies on the short, metaphyseal-fitting anatomic cementless femoral component in patients younger than 30 years of age who had osteonecrosis of the femoral head are absent. The purpose of this current study was to evaluate midterm results of the short, metaphyseal-fitting anatomic cementless femoral component in patients younger than 30 years of age who had osteonecrosis of the femoral head with a particular emphasis on the clinical and radiographic results, thigh pain, stress shielding, revision rate, and osteolysis. Methods: We reviewed the 70 patients (111 hips) younger than 30 years of age who had osteonecrosis of the femoral head. All surgeries were performed by a single surgeon. The most common cause of osteonecrosis of the femoral head was ethanol-associated. Demographic data, Harris hip score, Western Ontario and McMaster Universities Osteoarthritis (WOMAC) index, and University of California, Los Angeles (UCLA), activity score were recorded. Radiographic evaluation was performed to determine implant fixation, stress shielding, and osteolysis. The minimum follow-up was 5 years (mean, 5.7 years; range, 5-6.5 years). Results: The mean preoperative Harris hip score, WOMAC score, and UCLA activity score were 35 points, 68 points, and 3 points, respectively. At final follow-up, the mean Harris hip score, WOMAC score, and UCLA activity score were 96 points, 17 points, and 8 points, respectively. No hip resulted in thigh pain after 1 year postoperatively. All of the acetabular and femoral components were well fixed at final follow-up. No hip exhibited squeaking, ceramic fracture, loosening, or osteolysis at the final follow-up. Conclusions: The midterm results of the short, metaphyseal-fitting anatomic cementless femoral component provided stable fixation without diaphyseal fixation in the highly active younger patients with osteonecrosis of the femoral head. Level of Evidence: Therapeutic level II. See the Instructions to Authors for a complete description of levels of evidence. © 2013 EFORT. All rights are reserved.
DOI
10.1007/978-3-642-35653-7_19
ISBN
9783642356537; 3642356524; 9783642356520
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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