Modified Triple Osteotomy for Acetabular Dysplasia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01285154
Recruitment Status : Unknown
Verified January 2011 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
First Posted : January 27, 2011
Last Update Posted : April 22, 2011
Information provided by:
National Taiwan University Hospital

January 26, 2011
January 27, 2011
April 22, 2011
February 2011
May 2011   (Final data collection date for primary outcome measure)
Not Provided
Not Provided
Complete list of historical versions of study NCT01285154 on Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
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
Not Provided
Observational Model: Case-Only
Time Perspective: Retrospective
Not Provided
Not Provided
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
Not Provided
  • Traditional Steel Triple Osteotomy
    Traditional technique
  • Modified Triple Osteotomy
    Modified technique
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Unknown status
Same as current
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)
Sexes Eligible for Study: All
6 Years and older   (Child, Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
Li, Yi-Chen, National Taiwan University Hospital
National Taiwan University Hospital
Not Provided
Study Chair: Yi-Chen Li, M.D. National Taiwan University Hospital, Department of Orthopaedic Surgery
National Taiwan University Hospital
January 2011