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

Brief Summary:
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

Condition or disease
Sharp Angle Center Edge Angle Femoral Head Extrusion Index Center Head Distance Discrepancy

Study Type : Observational
Estimated Enrollment : 2 participants
Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: Modified Triple Osteotomy for Acetabular Dysplasia - A Modified Technique for Better Femoral Head Medialization and Coverage
Study Start Date : February 2011
Estimated Primary Completion Date : May 2011
Estimated Study Completion Date : June 2011

Traditional Steel Triple Osteotomy
Traditional technique
Modified Triple Osteotomy
Modified technique

Information from the National Library of Medicine

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Ages Eligible for Study:   6 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Young adults and adolescents underwent triple innominate osteotomy for symptomatic acetabular dysplasia in our institution

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)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01285154

Contact: Yi-Chen Li, M.D. 886-2-23123456 ext 62515

National Taiwan University Hospital Recruiting
Taipei, Taiwan, 100
Sponsors and Collaborators
National Taiwan University Hospital
Study Chair: Yi-Chen Li, M.D. National Taiwan University Hospital, Department of Orthopaedic Surgery

Responsible Party: Li, Yi-Chen, National Taiwan University Hospital Identifier: NCT01285154     History of Changes
Other Study ID Numbers: 201012045RC
First Posted: January 27, 2011    Key Record Dates
Last Update Posted: April 22, 2011
Last Verified: January 2011

Keywords provided by National Taiwan University Hospital:
Hip dysplasia
Triple Osteotomy
Femoral Head Coverage
Femoral Head Medialization

Additional relevant MeSH terms:
Hip Dislocation, Congenital
Musculoskeletal Abnormalities
Musculoskeletal Diseases
Congenital Abnormalities