NCT06720649

Brief Summary

During physical activities, the time available to produce a force is infinitely shorter than the time required to reach maximal muscle capacity. Previous studies have observed that the time elapsed between ground contact and ACL rupture is on average 50-60 ms, suggesting that this is the time window available for any attempt at dynamic stabilization of the joint through muscle contraction. Sports movements include ballistic movements, defined as very fast movements whose objective is to accelerate a moving mass as much as possible so that it reaches a high speed in a very short time. This is the case for vertical jumps, running and most movements performed in physical and sporting activities. Thus; (1) isokinetic tests do not allow a rigorous analysis of the components related to the speed of the movement; (2) functional tests such as jumping, which only give a distance between one leg and the other, do not allow the calculation of precise and reproducible variables concerning the force and speed of the movement, in particular during the first milliseconds of the movement, and do not provide information on compensation phenomena. It is therefore interesting to use the ballistic tests developed to monitor the movements of athletes as a new possible indicator of the return to sport. The main objective of this study is to evaluate the performance of ballistic tests in predicting failure to return to physical activity 24 months after ACL surgery.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
140

participants targeted

Target at P50-P75 for not_applicable

Timeline
26mo left

Started Dec 2024

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress40%
Dec 2024Jun 2028

First Submitted

Initial submission to the registry

December 3, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 6, 2024

Completed
9 days until next milestone

Study Start

First participant enrolled

December 15, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2026

Expected
1.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 15, 2028

Last Updated

December 6, 2024

Status Verified

December 1, 2024

Enrollment Period

2 years

First QC Date

December 3, 2024

Last Update Submit

December 3, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Analysis of the kinetics of force waves produced at high speed during ballistic movement

    Analysis of the kinetics of force waves produced at high speed during a ballistic movement will make it possible to determine the ability to resume physical activity at a level similar to that before the rupture in the absence of injury (risk = 2.3 / no risk = 0.1). Failure to resume physical activity 24 months after ACL surgery is defined by the occurrence of one of the following events: * Graft rupture, * Contralateral ACL rupture, * Decrease of at least 2 points in the Tegner 24 months after cruciate ligament surgery compared to the Tegner before the rupture

    24 Months

Secondary Outcomes (2)

  • Return to physical activity via isokinetic test

    24 Months

  • Return to physical activity via the K-STARTS test

    24 Months

Study Arms (1)

patient underwent ACL reconstruction

EXPERIMENTAL
Other: isokinetic testOther: Ballistic testOther: K-STARTS testOther: Questionnaires

Interventions

Bilateral strength will be measured using a Contrex ® dynamometer equipped with an exercise table. Each subject will perform isokinetic tests of the right and left knee extensors and flexors. Subjects will be stabilized by straps during testing and the joint rotation axis will be aligned with the input shaft of the dynamometer.

patient underwent ACL reconstruction

ballistic squat jumps performed in the supine position on a frictionless sled at a resistance between 0% of body weight (BW)

patient underwent ACL reconstruction

The K-STARTS (Knee Health Athletic Return To Sport) test brings together a set of 7 tests validated in the scientific literature to assess the control and neuromuscular capacities of the lower limb when performing dynamic movements as well as apprehension when resuming activity. Test in 30 minutes with physical exercises and questionnaire.

patient underwent ACL reconstruction

KOOS (Knee Injury and Osteoarthritis Outcome Score) Questionnaire

patient underwent ACL reconstruction

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patient (\> 18 years),
  • Patient who has undergone ACL reconstruction of the hamstrings with or without associated extra-articular plastic surgery:
  • Isolated ACL sprain without injury to the collateral ligaments or the PCL,
  • ACL reconstruction without associated meniscal injury or with repaired or menisctomized meniscal injury,
  • Having to perform a K-STARTS test and an isokinetic test,
  • Having the Tegner score before the rupture.

You may not qualify if:

  • Patient with high cardio-respiratory risk,
  • Osteoarticular and neuromuscular traumatic sequelae of the lower limbs,
  • Degenerative neuromuscular diseases,
  • Connective Tissue and Collagen Disease (e.g. Marfan),
  • Follow-up of a medical treatment that may influence the neuro-muscular system (e.g., antidepressants, etc.) during the tests,
  • Pregnant, parturient or breastfeeding patient.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Clinique Chantecler

Marseille, 13012, France

Location

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Knee InjuriesLeg InjuriesWounds and Injuries

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Central Study Contacts

Dr Nicolas MORIN-SALVO, MD

CONTACT

Arnaud HAYS, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 3, 2024

First Posted

December 6, 2024

Study Start

December 15, 2024

Primary Completion (Estimated)

December 15, 2026

Study Completion (Estimated)

June 15, 2028

Last Updated

December 6, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations