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Stress Analysis of Hip Dysplasia

Sponsor
University of Utah (Other)
Overall Status
Completed
CT.gov ID
NCT01575977
Collaborator
(none)
12
Enrollment
101.9
Duration (Months)

Study Details

Study Description

Brief Summary

The main objective of this study is to predict cartilage contact pressures in the hip after periacetabular osteotomy (PAO).

Condition or Disease Intervention/Treatment Phase

    Detailed Description

    PAO was designed as a joint preserving surgical procedure to compensate for a shallow acetabulum by re-orienting the acetabulum into a position that provides better coverage of the femoral head. Although the overall theory that increasing load bearing area (improving coverage of the femoral head) results in reduced joint stress is intuitive, the complex bony surface may not behave in this manner. It is possible that joint stress may increase when the acetabulum is reoriented into a position that increases load bearing area if post-operative joint congruency is worse than pre-operative.

    Study Design

    Study Type:
    Observational
    Actual Enrollment :
    12 participants
    Observational Model:
    Other
    Time Perspective:
    Prospective
    Official Title:
    Stress Analysis of Hip Dysplasia After Corrective Surgery
    Study Start Date :
    Feb 1, 2011
    Actual Primary Completion Date :
    Aug 1, 2019
    Actual Study Completion Date :
    Aug 1, 2019

    Outcome Measures

    Primary Outcome Measures

    1. To predict cartilage contact pressures in the hip joint during simulated daily activities before and after periacetabular osteotomy (PAO) for correction of traditional dysplasia/retroversion. [1 year post surgery]

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 40 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:

    • Patients aged 18-40 years

    • Patients who have undergone periacetabular osteotomy by Dr. Peters for treatment of hip dysplasia.

    • Patients who have previously participated in IRB #10983 "Comparative Stress Analysis of Hip Dysplasia".

    Exclusion Criteria:

    • Persons with a history of allergies to lidocaine or seafood.

    • Children under the age of 18.

    • Persons incarcerated, on trial, or parole.

    • Women who are pregnant.

    • Subjects who do not have high quality pre-operative images available or have not been surgically treated by periacetabular osteotomy.

    Contacts and Locations

    Locations

    No locations specified.

    Sponsors and Collaborators

    • University of Utah

    Investigators

    • Principal Investigator: Andrew Anderson, Orthopedic Surgery Operations

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Andrew Anderson, Associate Professor, University of Utah
    ClinicalTrials.gov Identifier:
    NCT01575977
    Other Study ID Numbers:
    • 43600
    First Posted:
    Apr 12, 2012
    Last Update Posted:
    Nov 4, 2019
    Last Verified:
    Oct 1, 2019
    Additional relevant MeSH terms:
    Hip Dislocation
    Developmental Dysplasia of the Hip
    Hip Dislocation, Congenital

    Study Results

    No Results Posted as of Nov 4, 2019