Document Detail

A periacetabular osteotomy for the treatment of severe dysplastic hips.
MedLine Citation:
PMID:  20936385     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: We believe a curved periacetabular osteotomy is indicated for treatment of severe dysplastic hips with center-edge angles less than 0°, classified as Severin Group IV-b. However, the lower limit of the center-edge angle in hips classified as Severin Group IV-b is not clearly defined to determine which patients should receive periacetabular osteotomy alone.
QUESTIONS/PURPOSES: We retrospectively compared the results of curved periacetabular osteotomies performed for the treatment of severe (Severin Group IV-b: center-edge angle < 0°) and moderate (Severin Groups III and IV-a: center-edge angle ≥ 0°) dysplastic hips. We investigated the lower limit of the center-edge angle, which was corrected by a curved periacetabular osteotomy alone in Severin Group IV-b hips.
PATIENTS AND METHODS: We divided 191 hips in 163 patients into moderate (147 hips) and severe (44 hips) dysplastic hip groups. Minimum followup was 2 years (mean, 70.9 and 70.6 months, respectively). Clinical evaluations were performed using the Harris hip score. Radiographic measurements included the center-edge angle, acetabular head index, acetabular roof obliquity, and head lateralization index. Complications were compared between the two groups.
RESULTS: All clinical and radiographic postoperative parameters showed satisfactory improvement over the preoperative parameters in both groups. The postoperative acetabular roof obliquity and head lateralization index were equivalent between the two groups. Eleven hips deteriorated to end-stage osteoarthritis. No complications were specifically associated with the severe dysplastic hips.
CONCLUSIONS: Curved periacetabular osteotomy alone for treatment of severe dysplastic hips with preoperative center-edge angles as low as -20° and classified as Severin Group IV-b restored weightbearing area and medialization.
Hirotaka Karashima; Masatoshi Naito; Kei Shiramizu; Takahiko Kiyama; Akira Maeyama
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-10-09
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  469     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-01     Completed Date:  2011-06-07     Revised Date:  2013-07-03    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1436-41     Citation Subset:  AIM; IM    
Department of Orthopaedic Surgery, Fukuoka University School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
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MeSH Terms
Acetabulum / abnormalities,  radiography,  surgery*
Disease Progression
Hip Dislocation, Congenital / complications,  physiopathology,  radiography,  surgery*
Hip Joint / abnormalities,  physiopathology,  radiography,  surgery*
Middle Aged
Osteoarthritis, Hip / etiology,  prevention & control
Osteotomy* / adverse effects
Patient Selection
Range of Motion, Articular
Recovery of Function
Retrospective Studies
Severity of Illness Index
Time Factors
Treatment Outcome

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

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