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| Name | Class |
|---|---|
| Institut National de la Santé Et de la Recherche Médicale, France | OTHER_GOV |
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This prospectively study aims to evaluate the evolution of knee joint proprioception on isokinetic dynamometer before and after Anterior Cruciate Ligament (ACL) reconstruction and its relationships with muscle strength, self reported questionnaire and return to sport. This study will include 30 athletes with isolated ACL rupture, and treated with ACL reconstruction surgery and 15 healthy volunteers.
Anterior cruciate ligament (ACL) rupture is a common injury in athletes. It has multiple consequences on the knee: instability, pain, loss of muscle strength, proprioceptive impairments, modification of the knee kinematics and premature knee osteoarthritis. In athletes, the majority of these injuries are treated with ACL reconstruction surgery. The main objective of this treatment is the reduction of knee instability to allow return to sport, and this at the same level prior to the injury. Thus, the athlete's follow-up after the surgery is essential to guide the return to sport and to ensure that the knee sensorimotor control allows the return to sport. Currently this assessment is based primarily on functional testings and measurement of muscle strength.
The investigators propose to prospectively study the evolution of instrumentally measured knee proprioception using isokinetic dynamometer before and after ACL reconstruction as well as a study of the factors associated with its favorable evolution and its impact in the return to sport and its level.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ACL | Active Comparator | Intervention Group "ACL": 30 patient, athletes, with ACL deficiency candidate to a surgical ACL reconstruction |
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| Control | Placebo Comparator | Control Group: 15 healthy volunteers, athletes. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Proprioception measurement on isokinetic dynamometer | Device | Proprioception measurement on isokinetic dynamometer using joint position sense (JPS) and the threshold to detection of passive motion (TTDPM) |
| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline passive proprioceptive evaluation after 7 months | Measurement of knee proprioception by the passive repositioning technique (JPS, in degrees) on isokinetic dynamometer. | ACL group: 6 weeks after surgery and 7 months after surgery; Healthy group: one evaluation at a single point in time through study completion, an average of 1 year |
| Change from Baseline active proprioceptive evaluation after 7 months | Measurement of knee proprioception by the active repositioning technique (JPS, in degrees) on isokinetic dynamometer. | ACL group: 6 weeks after surgery and 7 months after surgery; Healthy group: one evaluation at a single point in time through study completion, an average of 1 year |
| Change from Baseline TDPM (Threshold to Detection of Passive Motion) evaluation after 7 months | Measurement of knee proprioception by the Threshold to Detection of Passive Motion (TDPM in degrees) on isokinetic dynamometer. | ACL group: 6 weeks after surgery and 7 months after surgery; Healthy group: one evaluation at a single point in time through study completion, an average of 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Strength | Measurement of knee extensors and flexors peak strength (in newton.meter, Nm) on isokinetic dynamometer. | ACL group: Two evaluations on both injured and healthy knees: (1) 3 months after surgery and (2) 7 months after surgery; Healthy group: one evaluation at a single point in time through study completion, an average of 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Joffrey DRIGNY, MD MSc | Contact | +332 31 06 45 33 | drigny-j@chu-caen.fr |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Caen University Hospital | Recruiting | Caen | France |
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Intervention Group "ACL": 30 patient, athletes, with ACL deficiency candidate to a surgical ACL reconstruction Control Group: 15 healthy volunteers, athletes.
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| 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 |
| ACL group: Four evaluations on both injured and healthy knees: (1) 2 weeks before surgery, (2) 3 months after surgery, (3) 7 months after surgery and (4) 12 months after surgery |
| Functional testing | Hop test. Single hop: Patients are instructed to stand on one leg and perform 1 jump as far as possible, landing on the same leg. The total distance is recorded (in cm) .Triple hop: Patients are instructed to stand on one leg and perform 3 hops as far as possible, landing on the same leg. The total distance for 3 consecutive hops is recorded (in cm). Cross-over hop test : The patient hops forward 3 times while alternately crossing over a marking The patient is instructed to position themselves such that the first of the 3 hops was lateral with respect to the direction of crossover The total distance hopped forward is recorded (in cm) | ACL group: Two evaluations on both injured and healthy knees: (1) 3 months after surgery and (2) 7 months after surgery; Healthy group: one evaluation at a single point in time through study completion, an average of 1 year |
| Caen University Hospital | Recruiting | Caen | France |
|
| ID | Term |
|---|---|
| D000070598 | Anterior Cruciate Ligament Injuries |
| ID | Term |
|---|---|
| D007718 | Knee Injuries |
| D007869 | Leg Injuries |
| D014947 | Wounds and Injuries |
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