Hip SurgeriesPAO-RNCT07590882
Evaluation of Return to Sports Activity After Periacetabular Osteotomy: An Observational Study
An observational study of Hip Surgeries and Hip Developmental Dysplasia, run by Istituto Ortopedico Rizzoli at 1 site in Italy.
Trial summary
This study aims to collect datas about patient who underwent periacetabular osteotomy Read more about this study
- Who is it for?
- Ages 12 to 40 years
- Conditions the study is for
- Hip Surgeries, Hip Developmental Dysplasia
- What is being tested?
- Correction Factor
- Type of treatment
- Surgery or procedure
- How many people
- 26 participants
- Where
- 1 siteItaly
- Study dates
- 4 Nov 2025to 1 Jan 2027
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 to 40 years
- All sexes
- No healthy volunteers
- Child, Adult
Study population: patients undergoing periacetabular osteotomy
Who may be able to join
- Patients of both sexes who underwent periacetabular osteotomy (PAO) at the sites of the Istituto Ortopedico Rizzoli (IOR) in Bologna (CORTI), Argenta, and Bagheria between 2017 and March 2025
- Postoperative follow-up ≥ 6 months
- Complete clinical and radiographic documentation available for retrospective analysis
- Willingness to participate in the study
- Age at the time of surgery between 12 and 40 years
Who cannot join
- Patients unable to provide informed consent, unable to understand and decide, or minors whose parents/legal guardians do not provide informed consent
- Patients with previous or ongoing oncological diseases, if associated with a potential impact on joint function or bone healing
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
This study aims to collect datas about patient who underwent periacetabular osteotomy
Read the detailed description
The aim of the study is to understant the long term effet of the periacetabular osteotomy in terms of pain relief, patient satisfaction and ability to return to sports
- Conditions
- Hip Surgeries, Hip Developmental Dysplasia
- Being tested
- Correction Factor
- Medical subject headings
- Developmental Dysplasia of the Hip
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Correction FactorProcedure or surgery
periacetabular osteotomy
| Study group | Role | What they receive |
|---|---|---|
| patient undergoing periacetabular osteootmy | patient undergoing periacetabular osteootmy Receives: Procedure: Correction Factor |
What is being measured
The primary outcome is the main question the study is designed to answer.
return to sport
The percentage of patients who return to their preoperative sports activity
Measured: follow-up of 6 months
Secondary outcomes (2)
failure rate
determine the failure rate of PAO during follow-up
Measured: follow-up of 6 months
level of pain post operative
Pain assessment using the Visual Analog Scale (VAS)
Measured: follow-up of 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 May 2026
- Study start4 Nov 2025
- Primary completion1 Jan 2027 (estimated)
- Study completion1 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Hip SurgeriesStudies of the same condition, open and under way.
- More trials run by Istituto Ortopedico RizzoliThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 26 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Istituto Ortopedico Rizzoli
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07590882
- Sponsor's protocol ID
- PAO-R
- Acronym
- PAO-R
- Status last verified
- May 2026
- First submitted
- 30 Apr 2026
- Last updated
- 15 May 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 15 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Return to Sports Activity After Periacetabular Osteotomy: An Observational Study
- ClinicalTrials.gov ID
- NCT07590882
- Acronym / sponsor ID
- PAO-R / PAO-R
- Conditions
- Hip Surgeries, Hip Developmental Dysplasia
- Study type
- Observational
- Recruitment status
- Enrolling by invitation
- Enrolment
- 26 participants (estimated)
- Lead sponsor
- Istituto Ortopedico RizzoliUniversity, hospital or other
- Study start
- 4 Nov 2025 (actual)
- Primary completion
- 1 Jan 2027 (estimated)
- Study completion
- 1 Jan 2027 (estimated)
- First posted
- 15 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to collect datas about patient who underwent periacetabular osteotomy
Detailed description
The aim of the study is to understant the long term effet of the periacetabular osteotomy in terms of pain relief, patient satisfaction and ability to return to sports
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| patient undergoing periacetabular osteootmy | – | Procedure: Correction Factorpatient undergoing periacetabular osteootmy |
Who may qualify
- Ages
- 12 to 40 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
- Study population
- patients undergoing periacetabular osteotomy
Key inclusion criteria (5 listed)
- Patients of both sexes who underwent periacetabular osteotomy (PAO) at the sites of the Istituto Ortopedico Rizzoli (IOR) in Bologna (CORTI), Argenta, and Bagheria between 2017 and March 2025
- Postoperative follow-up ≥ 6 months
- Complete clinical and radiographic documentation available for retrospective analysis
- Willingness to participate in the study
- Age at the time of surgery between 12 and 40 years
Key exclusion criteria (2 listed)
- Patients unable to provide informed consent, unable to understand and decide, or minors whose parents/legal guardians do not provide informed consent
- Patients with previous or ongoing oncological diseases, if associated with a potential impact on joint function or bone healing
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Correction Factorperiacetabular osteotomy | Procedure or surgery | patient undergoing periacetabular osteootmy |
Primary outcome
return to sport
Time frame: follow-up of 6 months
The percentage of patients who return to their preoperative sports activity
2 secondary outcomes
failure rate
Time frame: follow-up of 6 months
level of pain post operative
Time frame: follow-up of 6 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 May 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hip Surgeries and Hip Developmental Dysplasia, run by Istituto Ortopedico Rizzoli at 1 site in Italy.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: enrolling by invitation, as of the sponsor's last update on 15 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
return to sport (time frame: follow-up of 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 May 2026.