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Anterior cruciate ligament (ACL) tear is frequent, but the diagnosis of partial tears is difficult. Standard MRI may be used but is of limited diagnostic value. The present study aimed to evaluate the diagnostic interest of dynamic knee laxity measurement coupled to MRI for the diagnosis of ACL tear.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| laxIRM | Experimental | Patients will have dynamic knee laxity measurement coupled to MRI for the diagnosis of ACL tear |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| LaxIRM | Device | Dynamic knee laxity measurement coupled to MRI for the diagnosis of ACL tear |
|
| Measure | Description | Time Frame |
|---|---|---|
| Anterior tibial translation (ATT) measurement | Time Frame : 1 year after the baseline MRI-scan a follow-up MRI is performed if the patient did not had surgery. ATT is calculated as the difference between the distance from the tangent to the condyle to the tangent to the posterior aspect of the tibial plateau in the stress position and in resting conditions. ATT is measured for the medial and the lateral compartment respectively and the final ATT is the average of medial and lateral ATT. | 1 year after the baseline MRI-scan |
| Measure | Description | Time Frame |
|---|---|---|
| Degree of laxity | 1 year after the baseline MRI-scan a follow-up MRI is performed if the patient did not had surgery. Laxity of the torn ligament is defined using a visual scale with the following grading : 0 : No laxity. Grade 1: moderate laxity. Grade 2: severe laxity. | 1 year after the baseline MRI-scan |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Jean-Baptiste PIALAT, MD, PhD | Hospices Civils de Lyon | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospices Civils de Lyon - Hôpital Edouard Herriot Pavillon B Radiologie | Lyon | 69437 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Result | Pialat, Jean-Baptiste and Ltaief-Boudrigua, A. and Peyron, C. and Arion, S. and Manera, L. and Barta, A. Imagerie du genou : variantes à connaître, pièges à éviter. 44e Congrès thématique de la Société d'Imagerie Musculo-Squelettique - Le Genou. 2017-06-23/2017-06-24 | ||
| Result | Lavigne, Joris and Stacoffe, Nicolas and Heidelberg, Damien and Pialat, Jean-Baptiste. 50 cas cliniques en radiologie pédiatrique ostéoarticulaire. Journées Francophones de Radiologie Diagnostique et Interventionnelle (JFR 2018) - 2018-10-12/2018-10-15 |
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| ID | Term |
|---|---|
| D000070598 | Anterior Cruciate Ligament Injuries |
| ID | Term |
|---|---|
| D007718 | Knee Injuries |
| D007869 | Leg Injuries |
| D014947 | Wounds and Injuries |
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| Femorotibial rotation (FTR) value |
1 year after the baseline MRI-scan a follow-up MRI is performed if the patient did not had surgery. FTR= arc tan ((ATT lateral-ATT medial)/(slice thickness*number of sagittal slices))*180/π |
| 1 year after the baseline MRI-scan |