Stress Analysis of Hip Dysplasia
This study is enrolling participants by invitation only.
Information provided by (Responsible Party):
Andrew Anderson, University of Utah
First received: March 6, 2012
Last updated: February 17, 2015
Last verified: February 2015
The main objective of this study is to predict cartilage contact pressures in the hip after periacetabular osteotomy (PAO).
||Time Perspective: Prospective
||Stress Analysis of Hip Dysplasia After Corrective Surgery
Primary Outcome Measures:
- 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. [ Time Frame: 1 year post surgery ] [ Designated as safety issue: No ]
| Estimated Enrollment:
| Study Start Date:
| Estimated Study Completion Date:
| Estimated Primary Completion Date:
||February 2016 (Final data collection date for primary outcome measure)
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.
|Ages Eligible for Study:
||18 Years to 40 Years
|Genders Eligible for Study:
|Accepts Healthy Volunteers:
- 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".
- 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.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01575977
University of Utah
||Orthopedic Surgery Operations
No publications provided
||Andrew Anderson, Associate Professor, University of Utah
History of Changes
|Other Study ID Numbers:
|Study First Received:
||March 6, 2012
||February 17, 2015
||United States: Institutional Review Board
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on March 26, 2015
Hip Dislocation, Congenital