An interventional study of Perineal Post-Free Traction and Perineal Post Traction in Femoroacetabular Impingement Syndrome, sponsored by ChunBao Li. Active, not recruiting at 10 sites in China. Open to participants aged 15 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by ChunBao Li · Not applicable, Interventional, and Treatment
Among 11 studies in Femoracetabular Impingement with a site in China — 1 open to participants now, 2 under way, none of them phase 3. Femoracetabular Impingement · China.
Among the 11 studies in Femoracetabular Impingement with a site in China, this one is one of 2 that started in 2026, is one of 2 with no phase, and was the 9th registered.
116 studies on the registry are indexed under Femoracetabular Impingement; 37 are open to participants now.
Browse Femoracetabular Impingement studies →1 of the 11 studies in Femoracetabular Impingement with a site in China is open now. Recruiting first, the newest first:
Peking University Third Hospital · Sites in China
A study can be open while its sites in China have not opened yet or have stopped. Only those recruiting at a site in China →
Of the 19 Femoracetabular Impingement studies recruiting now, 6 (32%) set no upper age limit and 11 (58%) stop at 75 or younger; 3 take children under 18; 6 take healthy volunteers.
This study: 15 Years to 60 Years · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
11 studies; the count open now beside each. This study's row is marked.
First in 2018; this study’s year is marked. 2 started in 2026.
This study's planned enrollment of 270 is above the median of 73 across 70 interventional studies indexed under Femoracetabular Impingement.
Median enrollment 315 across the 2 interventional studies, 132 across the 9 observational. Of the 6 that completed or were terminated, 0 (0%) have results posted.
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None of the 11 has an industry lead sponsor. The 2 most frequent:
ChunBao Li is the lead sponsor of 4 studies on the registry; 2 are open to participants now.
ChunBao Li has 2 studies filed under Femoracetabular Impingement — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 11 studies in Femoracetabular Impingement with a site in China, from their registry updates:
This tab as a report to print or save as PDF → With an account.
The goal of this clinical trial is to analyze the impact of perineal post-free traction versus traditional perineal post traction on perineal complications in hip arthroscopy. The main question it aims to answer is:
Participants will:
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.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Procedure: Perineal Post-Free Traction
Procedure: Perineal Post Traction
Traction achieved with a thoraco-abdominal belt and contralateral groin strap; operating table tilted 10-15° Trendelenburg under fluoroscopy to 8-10 mm joint space. No perineal post is used, eliminating direct perineal pressure.
Standard traction table with padded perineal post placed against the groin providing counter-traction; affected limb distracted under fluoroscopy to 8-10 mm joint space while contralateral limb is abducted.
The incidence of perineal nerve injury
The incidence of perineal nerve injury included: perineal numbness, pain, soft tissue injury, sexual function and urinary dysfunction.
Time frame: The first day after surgery
The incidence of pain, numbness, soft tissue injury in other places
Lower limb ankle numbness and soft tissue injury; the contralateral groin pain, numbness and soft tissue injury; chest pain, numbness, soft tissue injury with fixed place
Time frame: The first day after surgery
Patients at discharge perineum area incidence of nerve injury
Patients at discharge perineum area incidence of nerve injury include: perineum area numbness, pain, soft tissue injuries, sexual and urinary dysfunction.
Time frame: 7 days after surgery
Intraoperative traction time
Intraoperative traction time
Time frame: During surgery (intraoperatively)
Preoperative preparation time
Preoperative preparation time
Time frame: Immediately before surgery (preoperatively)
Operating time
Operating time
Time frame: During surgery (intraoperatively)
The average length of hospital stay after surgery
The average length of hospital stay after surgery
Time frame: 6 weeks after surgery
Postoperative joint function assessment
Visual Analog Scale (VAS) (range 0-10; higher scores indicate worse outcomes).
Time frame: 3 months after surgery
Postoperative joint function assessment
Modified Harris Hip Score (mHHS) (range 0-100; higher scores indicate better outcomes).
Time frame: 3 months after surgery
Postoperative joint function assessment
Hip Outcome Score (HOS) (range 0%-100%; higher scores indicate better outcomes).
Time frame: 3 months after surgery
Postoperative joint function assessment
International Hip Outcome Tool 12-Item Questionnaire (iHOT-12), range 0-100, higher scores mean better hip function
Time frame: 3 months after surgery
Economic Evaluation - Pain Intensity
This study will conduct an economic evaluation from a healthcare sector and societal perspective. Pain intensity is assessed using the Visual Analog Scale (VAS), a unidimensional measure reported as scores on a 0-100 mm scale. Effectiveness analysis will incorporate this clinical outcome. Safety will be evaluated by monitoring the incidence of adverse events within 3 months postoperatively.
Time frame: 14 days after surgery
Economic Evaluation - Hip Function
This study will conduct an economic evaluation from a healthcare sector and societal perspective. Hip function is assessed using the modified Harris Hip Score (mHHS), a measure specifically for hip dysfunction and related symptoms, reported as scores on a 0-100 scale. Effectiveness analysis will incorporate this clinical outcome. Safety will be evaluated by monitoring the incidence of adverse events within 3 months postoperatively.
Time frame: 14 days after surgery
Mean Total Healthcare Cost per Patient within 14 Days Postoperatively
This is the cost input measure for the economic evaluation, adopting a healthcare system perspective. All direct medical costs related to the surgery and subsequent care from the day of surgery until 14 days postoperatively will be collected via the Hospital Information System. Costs include fees for surgery, anesthesia, medical supplies, hospitalization, medication, imaging and laboratory tests, and additional costs for managing complications. The mean total cost per patient (in Chinese Yuan, CNY) will be calculated separately for the "conventional perineal-post traction group" and the "perineal-post-free traction group".
Time frame: Data collection period: From randomization until 14 days postoperatively.
Plan to share: No — Individual participant data (IPD) will not be shared with external independent researchers. The original informed consent only permits internal study team, institutional ethics committee and regulatory authorities to access coded data for trial quality control, without explicit participant consent for sharing de-identified IPD for external secondary research. Full trial protocol, statistical analysis plan and analytic codes are available to eligible researchers for result replication upon reasonable request.
Ran from Mar 2026 to primary completion in Sep 2026, 6 months.
Of 41 non-industry interventional studies with no phase under Femoracetabular Impingement, half reached primary completion within 41 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 79. This study's 6 months is below that.
Counting every sponsor, half of 42 studies reached it within 41 months; a quarter within 28 and three quarters within 79.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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ChunBao Li