Clinical Trial of Concomitant Hip Arthroscopy During PAO for Hip Dysplasia

This study is comparing two surgical approaches for treating hip dysplasia: periacetabular osteotomy (PAO) alone versus PAO combined with hip arthroscopy. PAO is a procedure to reposition the hip socket. Hip arthroscopy is a minimally invasive surgery that allows doctors to look inside the joint and treat issues like labral (cartilage) tears. The study wants to see if adding hip arthroscopy to PAO leads to better pain relief and function for patients with hip dysplasia. You may be able to join if you are between 15 and 55 years old, have hip dysplasia, and have minimal or no arthritis. The study plans to enroll 106 participants. The current recruitment status is unclear.

Study design
This interventional study plans to enroll 106 participants. It compares two surgical procedures for hip dysplasia.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for one year after treatment to assess their hip disability, arthritis symptoms, and activity levels.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT03181048

Clinical Trial of Concomitant Hip Arthroscopy During PAO

Recruiting
NAAges 15–55InterventionalTreatment
Mayo Clinic
~106 participants
Updated 2026-09-11 on ClinicalTrials.gov
What's tested:Periacetabular osteotomyPeriacetabular osteotomy with hip arthroscopy

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Mean score of Hip Disability and Osteoarthritis Outcome (Hoos)
Measured over 1 year follow-up time point
+3 more outcomes measured
Hip Dysplasia

NCT03181048

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Mayo Clinic

    Rochester, Minnesotastudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Rafael Sierra, MD · PRINCIPAL_INVESTIGATOR · Mayo Clinic

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Eligibility criteria

Inclusion

Diagnosis of hip dysplasia (DDH) electing periacetabular osteotomy (PAO) for treatment
Skeletally mature
Age 15 - 55
Tonnis Grade 0 or 1 osteoarthritis (minimal or no arthritis)
Ability to receive a standard of care preoperative (magnetic resonance imaging) MRI arthrogram of the hip

Exclusion

Pregnant women
Previous surgery about the hip
Patients receiving PAO for acetabular retroversion in the absence of DDH
Previous hip arthroscopy to address intra-articular pathology
  • Mean score of Hip Disability and Osteoarthritis Outcome (Hoos)1 year follow-up time point

    Score ranges from 0-100 with higher scores representing better function.

  • Mean score of Western Ontario and McMaster Universities Arthritis Index (WOMAC)1 year follow-up time point

    The scores range from 0-4 in 24 different categories that are broken up into three subcategories: pain, stiffness and physical function.

  • Mean score of University California Los Angeles (UCLA) activity assessment1 year follow-up time point

    Measured on a 1-10 scale: 1) wholly inactive, dependent on others; 2) mostly inactive, restricted to minimal activities of daily living; 3) sometimes participate in mild activities such as walking, limited housework, or shopping; 4) regularly participate in mild activities; 5) sometimes participate in moderate activities such as swimming and unlimited housework or shopping; 6) regularly participate in moderate activities; 7) regularly participate in active events such as bicycling; 8) regularly participate in very active events such as bowling or golf; 9) sometimes participate in impact sports such as jogging, tennis, or skiing, or heavy labor; and 10) regularly participate in impact sports.

  • Mean score of the Marx Activity Scale (MARX)1 year follow-up time point

    Score is measured from 0-4.