NCT04888052

Brief Summary

Rupture of the anterior cruciate ligament is a serious and common injury. In young athletes, surgical reconstruction of the anterior cruciate ligament by autograft with hamstrings or patellar ligament is widely used. Despite relatively standardized medical, surgical, and paramedical management, the results after ACL ligamentoplasty are not entirely satisfactory in term of return to sport. Recovery of the quadriceps strength is recognized as one of the decision-making criteria allowing the return to sport; however, significant muscle deficits are frequent at the time of return to sport. If the postoperative management is well codified, focused on muscle strengthening and neuromuscular retraining, some studies have addressed the value of preoperative rehabilitation, and recommend a good preoperative muscular recovery of knee extensors and flexors, to obtain better postoperative results at the stage of the return to sports. These results suggest that preoperative quadriceps strength should be considered as a predictor of the athletes' ability to return to sport activities. It is estimated that around 10 to 30% of patients with preoperative deficits and could benefit from additional rehabilitation. It can then be assumed that if the preoperative deficit is smaller, the postoperative deficit will also be smaller. This is the challenge of preoperative rehabilitation. There are a few studies on preoperative rehabilitation which allow a gain in strength of knee extensors and flexors. However, the rehabilitation protocols applied to patients highly varied and there is no consensus on one protocol. The potential improvement is in the range of 10 to 20%. The hypothesis of the study is that an optimal recovery of the strength of the preoperative knee extensors and flexors would reduce the postoperative deficit, thus improving the return to sport. In the absence of reliable information on the frequency of muscle weakness in preoperative patients, we will conduct a preliminary study to obtain these data as well as the potential gain in strength with our preoperative rehabilitation protocol.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
6

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

April 14, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 17, 2021

Completed
5 months until next milestone

Study Start

First participant enrolled

October 19, 2021

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

December 26, 2025

Status Verified

December 1, 2025

Enrollment Period

1.2 years

First QC Date

April 14, 2021

Last Update Submit

December 18, 2025

Conditions

Keywords

Rehabilitationpreoperativestrengthisokineticanterior cruciate ligament

Outcome Measures

Primary Outcomes (1)

  • Muscle strength

    Muscle strength: measurement of knee extensors and flexors peak torque on isokinetic dynamometer.

    4-6 weeks after ACL injury

Secondary Outcomes (4)

  • Muscle strength

    through study completion, an average of 20 weeks

  • Functional testing : SEBT

    4-6 weeks after ACL injury and through study completion, an average of 20 weeks

  • Title Questionnaires : Lyshom

    4-6 weeks after ACL injury and through study completion, an average of 20 weeks

  • Title Questionnaires : confidence questionnaire

    4-6 weeks after ACL injury and through study completion, an average of 20 weeks

Study Arms (1)

Group 1

EXPERIMENTAL
Device: Acute ACL injury

Interventions

Quantification of the preoperative deficits, by an isokinetic dynamometer, in order to adapt the care management of patients found with a muscle deficiency. Patients with preoperative knee extensor deficits \> 15% will benefit from an additional preoperative rehabilitation protocol (8 weeks).

Group 1

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Acute ACL injury (\< 4 weeks) before surgical treatment
  • Patient given written consent to participate in the study,
  • Patient able to understand the protocol and willing to comply with its rules.
  • Social security affiliated

You may not qualify if:

  • Age \< 18 years ou \> 45 years,
  • ACL rupture associated with fracture or complex meniscal tear or lesion to the lateral collateral ligament or posterior cruciate ligament
  • History of ligament surgery on the affected and non-affected knee.
  • fracture
  • Isokinetic contraindications : cardiorespiratory, metabolic, neurological, cancer or hematological pathology contraindicating physical activity, long term steroid use (\> 3 months), pregnancy, skin problems under load cell, osteoporosis, anticoagulants
  • Patient under the protection of adults
  • Informed consent not obtained

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hop Swynghedauw

Lille, 59037, France

Location

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Condition Hierarchy (Ancestors)

Knee InjuriesLeg InjuriesWounds and Injuries

Study Officials

  • André Thevenon, MD,PhD

    University Hospital, Lille

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

April 14, 2021

First Posted

May 17, 2021

Study Start

October 19, 2021

Primary Completion

December 31, 2022

Study Completion

December 31, 2022

Last Updated

December 26, 2025

Record last verified: 2025-12

Locations