Adductor Longus Tenotomy & the BKFO Test
The Effect of an Adductor Longus Tenotomy on the Bent Knee Fall Out Test
1 other identifier
observational
60
1 country
1
Brief Summary
The bent knee fall out test (BKFO) is a common test for hip adductor flexibility. It is unknown whether the BKFO actually tests the the adductors or potentially hip range of motion instead. In this study, the BKFO test is performed in the operating theater before and after an adductor longus tenotomy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Nov 2019
1 active site
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Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 22, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 22, 2020
CompletedFirst Submitted
Initial submission to the registry
June 22, 2020
CompletedFirst Posted
Study publicly available on registry
July 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
January 18, 2021
CompletedResults Posted
Study results publicly available
March 3, 2025
CompletedMarch 3, 2025
February 1, 2025
6 months
June 22, 2020
August 8, 2023
February 10, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Change in the Bent Knee Fall Out Test
The patient lies supine on the surgical table with app. 90° knee flexion, 45° hip flexion, and the feet together and the hips in external rotation (also known as the frog-leg position. Standardization of position is achieved by flexing one leg first, so the medial malleolus is placed next to the medial knee joint line of the contra-lateral leg. The knee is then moved laterally, externally rotating the hip with the plantar surface placed towards the contra-lateral leg. The contra-lateral leg is then flexed, and the plantar surfaces of the feet are aligned. The distance between the most distal point on the head of the fibula and the surface of the surgical table is measured using a rigid tape measure and distance is recorded in cm to the nearest 0.5 cm
Baseline pre-surgery and immediately after the surgery.
Interventions
The intervention included in this study is part of routine medical care, and not assigned as a result of study participation. This study includes only the addition of a measurement; the bent knee fall out test. Therefore, we believe this study design is observational, and in line with the provided observation study design definition: "Observational: studies in human beings in which biomedical and/or health outcomes are assessed in predefined groups of individuals. Participants in the study may receive diagnostic, therapeutic, or other interventions, but the investigator does not assign specific interventions to the study participants. This includes when participants receive interventions as part of routine medical care, and a researcher studies the effect of the intervention." See uploaded study protocol for further details.
Eligibility Criteria
Athletes with groin pain are consecutively recruited from two clinics of a visceral surgeon specialized in groin pain in athletes. The clinics are located in Bordeaux and Paris, France, and patient population includes athletes from all over France.
You may qualify if:
- adults (\>18 years old)
- athletes (recreational or elite)
- clinical diagnosis of adductor-related groin pain
- patients undergoing unilateral or bilateral adductor longus tenotomy by one general surgeon.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Aspetarlead
- Clinique du sportcollaborator
Study Sites (1)
Clinique du sport Bordeaux - Mérignac
Mérignac, 33700, France
Results Point of Contact
- Title
- Dr Andreas Serner
- Organization
- FIFA
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 22, 2020
First Posted
July 1, 2020
Study Start
November 22, 2019
Primary Completion
May 22, 2020
Study Completion
January 18, 2021
Last Updated
March 3, 2025
Results First Posted
March 3, 2025
Record last verified: 2025-02