Actively Recruiting
Reference Values for Knee Rotational Amplitudes in a Population of Athletes
Led by Centre Hospitalier Intercommunal de Toulon La Seyne sur Mer · Updated on 2026-04-14
482
Participants Needed
2
Research Sites
51 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Rupture of the anterior cruciate ligament (ACL) is a frequent and disabling injury in pivot sports, leading to knee laxity and instability, reduced performance and an increased risk of early osteoarthritis. The risk is 2 to 8 times higher in women, linked to greater ligament laxity and a different quadriceps/hamstring muscle ratio post-puberty. To assess knee laxity and the degree of ligament damage, anterior tibial translation (of the tibia below the femur) is usually measured. This translation is symmetrical and varies between 3 and 10 mm depending on the individual (natural laxity). It is increased in cases of ACL damage. Measuring tibial rotation is also of interest in this context. Studies show that the ACL plays a crucial role in controlling internal and external tibial rotation, especially during low-flexion movements (between 10° and 30°). ACL rupture also significantly increases this rotation, aggravating knee instability. It therefore seems important to study both tibial rotation and tibial translation to assess knee laxity. Combining these two measurements seems to improve diagnostic accuracy. This multifactorial approach could provide additional information on biomechanical abnormalities and predisposition to injury. The use of biomechanical data, such as normative values for tibial rotation, is fundamental to prevention, and preventive exercise programs reduce the risk of rupture4. Defining these norms would help identify athletes at risk and personalize preventive strategies. Instrumented assessment of laxity, using devices such as the DYNEELAX dynamic arthrometer, enables precise quantification of tibial rotation and anterior tibial translation under controlled loads. Its reliability has been proven5 and its use has been mastered at Toulon ("Unité de Médicine et Traumatologie du Sport") and Brest (Centre de Médecine du Sport"). It will be used in the PRELAX project to define normative tibial rotation values.
CONDITIONS
Official Title
Reference Values for Knee Rotational Amplitudes in a Population of Athletes
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Athletes with healthy knees, men and women
- Age greater than or equal to 15 years
- Practice competitive pivot sports
You will not qualify if you...
- History of ligament, meniscus, cartilage or bone lesions in the knee
- Pain, stiffness or instability in the knee at the time of inclusion
- Previous knee surgery, including ligament reconstruction
- Systemic diseases or medical conditions affecting the musculoskeletal system
- Participant or legal representative opposition if participant is a minor
- Participant under protective supervision
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 2 locations
1
Centre Hospitalier Intercommunal Toulon La Seyne sur Mer
Toulon, Var, France, 83100
Actively Recruiting
2
Centre de Médecine du Sport
Brest, France
Not Yet Recruiting
Research Team
S
Sophie Lafond
CONTACT
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
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