Best Practice Case Studies-Case 133 Asset 2 Knee Ligament Injuries

Video Transcription

Video Summary

The lecture reviewed knee ligament anatomy, biomechanics, evaluation, imaging, and treatment, with a focus on ACL, PCL, MCL, LCL, and posterolateral corner injuries. Key history clues include a pop and swelling for ACL tears, a dashboard or flexed-knee impact for PCL injuries, valgus stress for MCL injury, and varus stress for LCL injury. Physical exam maneuvers discussed included Lachman, anterior/posterior drawer, pivot shift, lever sign, valgus/varus stress testing, and the dial test for posterolateral corner injury.<br /><br />Imaging begins with x-rays to assess fractures and signs such as the deep lateral femoral notch sign and Segond fracture, followed by MRI for definitive assessment. Ultrasound can help identify effusions and collateral ligament injuries.<br /><br />Treatment emphasized that most ACL tears in active patients require reconstruction rather than repair, with graft options including BTB, hamstring, and quadriceps autografts, while allografts have higher failure rates in younger athletes. Prehab, rehab, and return-to-sport timing were highlighted, along with limited evidence for PRP and postoperative functional bracing. Posterior lateral corner injuries must not be missed, as they can lead to failure of ACL or PCL reconstruction. Multi-ligament knee injuries are limb-threatening and require urgent neurovascular assessment.

Meta Tag

Edition 4th Edition

Related Case 4th Edition, Case 133

Topic Hematology

Keywords

4th Edition

4th Edition, Case 133

Hematology

ACL injury

PCL injury

MCL injury

LCL injury

posterolateral corner

Lachman test

MRI knee

knee ligament reconstruction

multi-ligament knee injury