Stress Analysis of Hip Dysplasia

This study is enrolling participants by invitation only.
Sponsor:
Information provided by (Responsible Party):
Andrew Anderson, University of Utah
ClinicalTrials.gov Identifier:
NCT01575977
First received: March 6, 2012
Last updated: August 18, 2014
Last verified: August 2014
  Purpose

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


Condition
Hip Dysplasia

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Stress Analysis of Hip Dysplasia After Corrective Surgery

Further study details as provided by University of Utah:

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: 24
Study Start Date: February 2011
Estimated Study Completion Date: February 2015
Estimated Primary Completion Date: February 2015 (Final data collection date for primary outcome measure)
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.

  Eligibility

Ages Eligible for Study:   18 Years to 40 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

18-40 years old

Criteria

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
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01575977

Sponsors and Collaborators
University of Utah
Investigators
Principal Investigator: Andrew Anderson Orthopedic Surgery Operations
  More Information

No publications provided

Responsible Party: Andrew Anderson, Associate Professor, University of Utah
ClinicalTrials.gov Identifier: NCT01575977     History of Changes
Other Study ID Numbers: 43600
Study First Received: March 6, 2012
Last Updated: August 18, 2014
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Hip Dislocation, Congenital
Hip Dislocation
Musculoskeletal Abnormalities
Musculoskeletal Diseases
Congenital Abnormalities
Dislocations
Wounds and Injuries
Hip Injuries

ClinicalTrials.gov processed this record on August 18, 2014