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Evaluation of the Evolution of Proprioceptive Reweighting Abilities Following Anterior Cruciate Ligament Reconstruction Surgery

Evaluation of the Evolution of Proprioceptive Reweighting Abilities Following Anterior Cruciate Ligament Reconstruction Surgery - ReproEVO

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07389850
Acronym
ReproEVO
Enrollment
34
Registered
2026-02-05
Start date
2026-02-20
Completion date
2028-05-20
Last updated
2026-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Cruciate Ligament Rupture With Ligamentoplasty

Keywords

Anterior Cruciate Ligament, Anterior Cruciate Ligament Reconstruction, Central Nervous System, Proprioceptive reweighting, Pivot-contact sport, Plastic patient, Athletes

Brief summary

Anterior cruciate ligament (ACL) injury is the most common knee injury among athletes who play contact sports involving pivoting. ACL reconstruction (ACLR) combined with rehabilitation is the standard treatment for ACL tears in athletes, and rehabilitation is one of the keys to success. The overall return to sport rate is 80%, but the return to pre-injury level of sport is only 65% and the return to the same level of competition is only 55%. The recurrence rate is close to 20%. During rehabilitation and sports practice, proprioceptive information is essential for adjusting the muscle sensorimotor loop and enabling optimal movement. Athletes can thus be classified as plastic or rigid . Our hypothesis is to show that the proportion of "plastic" patients 9 months post-operative following ACL reconstruction is higher than that found in the same population 3 months post-operative, thus demonstrating the progression of proprioceptive integration abilities after ACL reconstruction surgery.

Detailed description

Anterior cruciate ligament (ACL) injury is the most common knee injury among athletes who play contact sports involving pivoting. ACL reconstruction (ACLR) combined with rehabilitation is the standard treatment for ACL tears in athletes, and rehabilitation is one of the keys to success. The overall return to sport rate is 80%, but the return to pre-injury level of sport is only 65% and the return to the same level of competition is only 55%. The recurrence rate is close to 20%. Although the number of studies on the subject is growing, there is currently no consensus on rehabilitation protocols. During rehabilitation and sports practice, proprioceptive information is essential for adjusting the muscle sensorimotor loop and enabling optimal movement. We have demonstrated that athletes and athletes after ACL reconstruction show variability in the integration of proprioceptive information during a complex balance task. Athletes can thus be classified as plastic (able to vary the source of proprioceptive information depending on conditions) or rigid (unable to do so). Our hypothesis is to show that the proportion of "plastic" patients 9 months post-operative following ACL reconstruction is higher than that found in the same population 3 months post-operative, thus demonstrating the progression of proprioceptive integration abilities after ACL reconstruction surgery.

Interventions

PROCEDUREReproEVO intervention

After the inclusion visit, each assessment will include an examination of standing balance in two support conditions: hard floor or soft floor and two conditions of vibration of the Achilles tendons or lumbar muscles, performed randomly over five trials for each condition. The subjects stand with their eyes covered by an opaque mask. Vibrators are positioned at both locations and vibrated randomly after a trial without recording to perceive the destabilizing effect induced by the vibration. The data is recorded using a force platform on the floor. Subjects will be seated and strapped into a rigid device attached to their leg. The device is connected to a motor that maintains a constant speed. Maximum strength will be measured at two different speeds. Finally, at each assessment, the subjects will complete questionnaires about their fear of pain, their assessment of their knee's capabilities, and the activities they engage in.

Sponsors

University Hospital, Brest
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Intervention model description

ReproEVO is a multicenter prospective interventional study.

Eligibility

Sex/Gender
ALL
Age
15 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Aged between 15 and 40; * Patients with ACL rupture scheduled for ACL reconstruction surgery; * Patients able to maintain a stable bipedal standing position without technical assistance and with their eyes closed; * Consent of the patient, parents, legal guardians, or guardians to the recording (for minor patients) of data for research and publication purposes.

Exclusion criteria

* Recent osteoarticular pathology (i.e., less than three months) of the lower limbs, whether traumatic or not, other than ACL rupture; * Proven disabling neurological pathology; * Pain in the musculoskeletal system during exercise (excluding the operated knee); * Fatigue assessed using the Borg scale \> 6; * Skin allergy to an adhesive product.

Design outcomes

Primary

MeasureTime frameDescription
Assessment of progress in proprioceptive reweighting after knee ligament reconstructionBaseline, 3 months after surgery and 9 months after surgeryDifference between the mean proprioceptive reweighting coefficient (RPw) preoperatively and 3 months postoperatively

Secondary

MeasureTime frameDescription
Assesment of the variation in weighting between before and after the operationBaseline and 3 months postoperativelyDifference between the mean proprioceptive reweighting coefficient (RPw) preoperatively and 3 months postoperatively
Assess postural controlBaseline, at 3 months postoperatively and at 9 months postoperativelyDifference in the size of the shift in the center of pressure in a static standing position, with eyes open and closed
Assess your Anterior Cruciate Ligament - Return to Sport and Injury (ACL-RSI) perception scoreBaseline, at 3 months postoperatively and at 9 months postoperativelyAssess your Anterior Cruciate Ligament - Return to Sport and Injury (ACL-RSI) perception score (0 : Not at all sure; 10: Completely safe) at the inclusion visit (preoperative); at 3 months postoperatively and at 9 months postoperatively
Assess the subjective IKDC activity scoreBaseline, at 3 months postoperatively and at 9 months postoperativelyAssess the subjective IKDC activity score (0: Never; 10: Always) at the inclusion visit (preoperative); at 3 months postoperatively and at 9 months postoperatively.

Countries

France

Contacts

CONTACTOlivier REMY-NERIS, Professor
olivier.remyneris@chu-brest.fr+33298223152

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026