Association Between Neuromuscular Parameters and Functional Assessment After ACL Reconstruction
ConditionACL Injury
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-40
SponsorUniversity Hospital, Caen
About this trial
The anterior cruciate ligament (ACL) injury is common in athletes aged 18 to 35. ACL reconstruction (ACLR) aims to restore knee stability in the process of returning to sports. Post-surgical rehabilitation focuses on optimizing biomechanical parameters, with neuromuscular and functional tests assessing muscle strength, proprioception, and dynamic stability. Isokinetic allows the measurement of muscle strength symmetry and proprioception, while the single-leg hop and landing tasks assess functional stability and are predictive of sports resumption and injury prevention. Despite progress, concerns remain about neuromuscular factors impacting knee stability, especially during landings, which can increase the risk of secondary ACL injuries.
This study proposes examining knee strength and proprioception using isokinetic dynamometry, alongside biomechanical assessments from functional tests, to explore their relationship to biomechanical features during landings, at 6-to-12 months post-ACL reconstruction. The hypothesis is that better muscle strength and proprioception correlate with improved knee control during landing tasks.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adult patients, aged 18-40, who have undergone a first ACL reconstruction more than 6 months ago and are being followed in a sports medicine care pathway
Affiliated with a health insurance plan
Information form: Non-objection to the use of data for research purposes
Disqualifiers
Previous ligament surgery of the lower limbs prior to ACL reconstruction
Complex ligament injury (lateral ligaments, posterior cruciate ligament)
Recent muscle injuries
History of injury to the uninjured knee
Trial population
All sports patients included in the sport medicine follow-up protocole with isokinetic muscular assessment at 6-12 months after ACL reconstruction surgery since March 2024 in the sports medicine department (Return To Sport Process)
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
Isokinetic neuromuscular assessment
Diagnostic testAll sports patients who had a muscle evaluation in addition to functional testing at 6-12 months after ACLR since March 2024
Treatment groups
25 Participants
are divided into 1 treatment groupGroup A: ACL reconstruction group1 intervention
Trial outcomes
Primary outcomes
1
Passive proprioceptive evaluation
Measurement of knee proprioception by the passive repositioning technique (JPS, in degrees) on isokinetic dynamometer.
Time frame
One measurement during the visit at 6 to 12 months after surgery2
Strength
Measurement of knee extensors and flexors peak strength (in newton.meter, Nm) on isokinetic dynamometer.
Time frame
One measurement during the visit at 6 to 12 months after surgery3
Single Hop test
Measurement of knee position during landing from a single leg hop task
Time frame
One measurement during the visit at 6 to 12 months after surgery4
Single-leg landing task
Measurement of knee position during landing from a 30-cm box
Time frame
One measurement during the visit at 6 to 12 months after surgerySecondary outcomes
1
Single Hop for Distance
The total distance is recorded (in cm)
Time frame
One measurement during the visit at 6 to 12 months after surgery2
ACL-RSI questionnaire (Anterior Cruciate Ligament-Return to Sport after Injury)
The ACL-RSI measures the patient's understanding of his knee. It comprises 12 questions with a score of 1 to 10 for each
Time frame
One measurement during the visit at 6 to 12 months after surgery3
Landing Error Scoring System (LESS)
The LESS (Landing Error Scoring System) scale is a 13-item tool used to assess landing technique during a hop task.
Time frame
One measurement during the visit at 6 to 12 months after surgerySponsors and contacts
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Source ClinicalTrials.gov