We are updating the design of this site. Learn more.
Show more
ClinicalTrials.gov Menu

Stress Analysis of Hip Dysplasia

This study is enrolling participants by invitation only.
ClinicalTrials.gov Identifier:
First Posted: April 12, 2012
Last Update Posted: September 26, 2017
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.
Information provided by (Responsible Party):
Andrew Anderson, University of Utah
The main objective of this study is to predict cartilage contact pressures in the hip after periacetabular osteotomy (PAO).

Hip Dysplasia

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

Further study details as provided by Andrew Anderson, 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 ]

Estimated Enrollment: 24
Study Start Date: February 2011
Estimated Study Completion Date: February 2019
Estimated Primary Completion Date: February 2019 (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.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
18-40 years old

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
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 ClinicalTrials.gov identifier (NCT number): NCT01575977

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

Responsible Party: Andrew Anderson, Associate Professor, University of Utah
ClinicalTrials.gov Identifier: NCT01575977     History of Changes
Other Study ID Numbers: 43600
First Submitted: March 6, 2012
First Posted: April 12, 2012
Last Update Posted: September 26, 2017
Last Verified: September 2017

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