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CompletedNCT01575977Updated Nov 4, 2019

Stress Analysis of Hip Dysplasia

An observational study in Hip Dysplasia, sponsored by University of Utah. Completed. Open to participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2019-11-04.

Sponsored by University of Utah · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
12
Ages
18 Years to 40 Years
Sex
All
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Study summary

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

Read the 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.

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Conditions studied

  • Hip Dysplasia

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In context

Hip Dislocation

142 studies on the registry are indexed under Hip Dislocation; 34 are open to participants now.

This study's enrollment of 12 is below the median of 149 across 46 observational studies indexed under Hip Dislocation.

Browse Hip Dislocation studies →

Lead sponsor

University of Utah is the lead sponsor of 991 studies on the registry; 177 are open to participants now.

Of its 111 completed or terminated interventional studies of FDA-regulated products, 64 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

18-40 years old

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

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.
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Study design

Observational model
Other
Time perspective
Prospective
Enrollment
12 participants (actual)
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What researchers measure

Primary outcomes

  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.

    Time frame: 1 year post surgery

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Study locations

No study locations are listed for this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 4, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01575977
Lead sponsor
University of Utah
Responsible party
Andrew Anderson (Associate Professor, University of Utah) — Principal investigator
First posted
Apr 12, 2012
Start date
Feb 2011
Primary completion
Aug 2019
Completion
Aug 2019
Last update
Nov 4, 2019

Study contacts

Andrew Anderson
principal investigator · Orthopedic Surgery Operations

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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