Document Detail

Long-term experience with Chiari's osteotomy.
MedLine Citation:
PMID:  19521741     Owner:  NLM     Status:  MEDLINE    
Fifty-six years after the introduction of Chiari's pelvic osteotomy, we report the long-term function scores and radiographic grade of osteoarthritis in 66 patients with 80 pelvic osteotomies with a minimum followup time of 27 years (average, 32 years; range, 27-48 years). These 66 patients were those who could be contacted and who returned for a followup visit from among 450 patients operated between 1961 and 1981. Thirty-two hips (40%) in 28 patients had undergone a total joint arthroplasty after an average 26 years (range, 13-41 years). Forty-eight hips in 41 patients (60%) were not replaced, their Harris hip score being a median of 82 points (range, 37-100 points). For the 22 patients for whom we had complete radiographs the average preoperative CE angle was 11.6 degrees, 48.6 degrees (range, 31 degrees-82.8 degrees) immediately postoperatively, and 41.6 degrees (range, 13.7 degrees-90 degrees) at last followup . Despite a functional hip score in most patients retaining their native hip, the degree of osteoarthritis progressed at last followup. We observed a similar mean age at the time of osteotomy in patients converted to total hip arthroplasty and those retaining their native hip. Age at time of surgery was inversely correlated (r = -0.78) with the interval between the osteotomy and THA. In this select patient group we found good functional outcome in patients who underwent Chiari pelvic osteotomy, with a conversion rate of 40% to total hip arthroplasty a mean of 32 years after the procedure. Level of Evidence: Level IV, case series. See Guidelines for Authors for a complete description of levels of evidence.
Rainer Kotz; Catharina Chiari; Jochen G Hofstaetter; Andreas Lunzer; Philipp Peloschek
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-06-12
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  467     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-07-29     Completed Date:  2009-08-27     Revised Date:  2013-06-02    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2215-20     Citation Subset:  AIM; IM    
Department of Orthopaedics, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
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MeSH Terms
Arthroplasty, Replacement, Hip
Disease Progression
Follow-Up Studies
Hip Dislocation, Congenital / complications,  physiopathology,  surgery*
Hip Joint / physiopathology,  surgery
Middle Aged
Osteoarthritis, Hip / etiology,  radiography,  surgery
Osteotomy / methods*
Pelvic Bones / pathology,  radiography,  surgery*
Postoperative Complications / etiology*,  surgery
Range of Motion, Articular
Severity of Illness Index
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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