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Reference Values for Knee Rotational Amplitudes in a Population of Athletes

NCT07013019 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 482

Last updated 2026-04-14

No results posted yet for this study

Summary

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

  • Knee Ligament Injury

Interventions

OTHER

Measures of overall (internal+external) knee rotational amplitudes

Measures of overall (internal+external) knee rotational amplitudes by Dyneelax

Sponsors & Collaborators

  • Centre Hospitalier Intercommunal de Toulon La Seyne sur Mer

    lead OTHER

Principal Investigators

  • Jean-Jacques Raymond, MD · Centre Hospitalier Intercommunal Toulon La Seyne sur Mer

  • Christophe GUEGAN, MD · Centre de Médecine du Sport de Brest

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-06-06
Primary Completion
2026-06-30
Completion
2026-06-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07013019 on ClinicalTrials.gov