NCT03481010 · Ottawa Hospital Research Institute
Periacetabular Osteotomy With and Without Arthroscopic Management of Central Compartment Pathology
What this study is about
At present, it is not clear whether performing a hip arthroscopy at the same time as a PAO improves patient outcomes after surgery compared to a PAO alone. This research project will randomize patients to receive either a PAO alone, or a PAO and a hip arthroscopy at the same time.
View original scientific description
At present, it is not clear whether performing a hip arthroscopy at the same time as a PAO improves patient outcomes after surgery compared to a PAO alone. This research project will randomize patients to receive either a PAO alone, or a PAO and a hip arthroscopy at the same time.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Skeletally mature patient undergoing Bernese periacetabular osteotomy for symptomatic acetabular dysplasia/hip instability
- Pre-Operative MRI at 3T and/or gadolinium MR arthrogram
- Age, 16-50 years old
- Patient capable of giving informed consent
Exclusion criteria
- Prior hip/pelvis surgery of any kind on the surgical side
- Prior hip arthroplasty surgery on either side
- Radiographic evidence of arthritis (i.e. Tönnis grade =2)
- Known connective tissue disorder (e.g. Ehlers-Danlos Syndrome, etc.)
- Known neuromuscular disorder (e.g. Cerebral Palsy, Spina bifida, etc.)
- Known skeletal dysplasia (e.g. Achondroplasia, Multiple Epiphyseal Dysplasia, etc.)
- Cognitive impairment that prevents accurate completion of patient-reported outcome questionnaires.
- Patient unable/unwilling to complete all required follow-up visits
- Concurrent proximal femoral osteotomy and/or surgical hip dislocation
Where
- Chicago, Illinois
- Royal Oak, Michigan
- St Louis, Missouri
- New York, New York
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Dec 30, 2025 · Source of record for eligibility and locations