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📌Characteristics of Distal MCL Tears
- May have a wavy or serpiginous ligamentous contour due to laxity
- Retracted tears may have a more serpiginous morphology, requiring surgical repair
- Distal sMCL insertion injuries do not heal well with nonoperative treatment
📌Proximal vs. Distal MCL Tear Differences
- In proximal sMCL tears, the ruptured end is not completely displaced due to connections to surrounding soft tissues
- Distal sMCL tears have a direct bone attachment, with impaired healing due to poor blood supply, lack of soft tissue connections, and potential displacement
✅ Management Approach
- Distal MCL tibial side avulsions are treated operatively
- Proximal MCL femoral side injuries are initially treated conservatively
➡️ [Case]
- Distal sMCL attachment is broad, 6-7 cm below the joint line and deep to the pes anserine tendons
- Case shows distal sMCL tear with laxity and MCL bursitis
- Pes anserine tendons (sartorius, gracilis, semitendinosus) attach anteromedially on the tibia
- Axial images are crucial to determine if the sMCL stump is deep (non-displaced) or superficial (displaced) to the pes anserinus
- This case represents a non-Stener-like lesion, with the torn sMCL fibers remaining deep to the pes anserinus
Stoller's Orthopaedics and Sports Medicine
Semin Musculoskelet Radiol. 2016 Feb;20(1):12-25
Knee. 2014 Dec;21(6):1151-5
Skeletal Radiol. 2020 May;49(5):747-756
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#MCL, #sMCL, #MCLinjury, #Stenerlesion, #Pesanserine, #MCLtear,
