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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
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

Sharp Angle Center Edge Angle Femoral Head Extrusion Index Center Head Distance Discrepancy

Study Type: Observational
Study Design: 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

Further study details as provided by National Taiwan University Hospital:

Estimated Enrollment: 2
Study Start Date: February 2011
Estimated Study Completion Date: June 2011
Estimated Primary Completion Date: May 2011 (Final data collection date for primary outcome measure)
Traditional Steel Triple Osteotomy
Traditional technique
Modified Triple Osteotomy
Modified technique


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)
  Contacts and Locations
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Please refer to this study by its identifier: 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
  More Information

Responsible Party: Li, Yi-Chen, National Taiwan University Hospital Identifier: NCT01285154     History of Changes
Other Study ID Numbers: 201012045RC
Study First Received: January 26, 2011
Last Updated: April 21, 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 processed this record on September 21, 2017