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Modified Triple Osteotomy for Acetabular Dysplasia

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified January 2011 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
Information provided by:
National Taiwan University Hospital Identifier:
First received: January 26, 2011
Last updated: April 21, 2011
Last verified: January 2011

January 26, 2011
April 21, 2011
February 2011
May 2011   (final data collection date for primary outcome measure)
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Complete list of historical versions of study NCT01285154 on Archive Site
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Modified Triple Osteotomy for Acetabular Dysplasia
Modified Triple Osteotomy for Acetabular Dysplasia - A Modified Technique for Better Femoral Head Medialization and Coverage
Steel triple innominate osteotomy was designed for dysplastic hip in adolescents and young adults with three incisions to increase the coverage; however the amount of correction remained questionable due to ligamentous attachments that hinder the rotation. The investigators modified the technique with two anterior incisions and ramus cuts close to inferior acetabulum. The purpose of this study is to compare these two techniques in femoral head coverage
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Observational Model: Case-Only
Time Perspective: Retrospective
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Probability Sample
Young adults and adolescents underwent triple innominate osteotomy for symptomatic acetabular dysplasia in our institution
  • Sharp Angle
  • Center Edge Angle
  • Femoral Head Extrusion Index
  • Center Head Distance Discrepancy
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  • Traditional Steel Triple Osteotomy
    Traditional technique
  • Modified Triple Osteotomy
    Modified technique
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Unknown status
June 2011
May 2011   (final data collection date for primary outcome measure)

Inclusion Criteria:

  1. Symptomatic acetabular dysplasia in adolescent or young adult
  2. Closed triradiate cartilage
  3. Minor coxarthrosis with Tonnis grades at 1 or 2

Exclusion Criteria:

  1. High subluxation or complete dislocation of the hip joint
  2. Severe osteoarthrosis
  3. Combined with proximal femoral osteotomy that changed the femoral neck shaft angle (such as varus or valgus osteotomy)
6 Years and older   (Child, Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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Li, Yi-Chen, National Taiwan University Hospital
National Taiwan University Hospital
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Study Chair: Yi-Chen Li, M.D. National Taiwan University Hospital, Department of Orthopaedic Surgery
National Taiwan University Hospital
January 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP