📌 Popliteus Injuries
- Most popliteus tears are extra-articular, involving the muscle or myotendinous portion
- Less common: injuries to the tendon within the popliteal hiatus or near femoral insertion
- Musculotendinous junction or femoral insertion injuries are common in high-grade posterolateral corner (PLC) injuries
- Isolated popliteus injuries represent <10% of cases
✅ Imaging Findings Extra-articular tears:
- Muscle or myotendinous portion tears
- Strain/grade II lesion at myotendinous junction (white arrows)
- Extensive circumferential soft tissue edema
- Popliteus tendon appears intact
✅ MRI Findings Injury appearance varies by location and severity:
- Abnormal signal in popliteus muscle
- Irregular tendon contour with peritendinous edema
- Tendon avulsion from femoral attachment
Radiographics.2000 Oct;20 Spec No:S91-S102.
Radiol Clin North Am. 2018 Nov;56(6):935-951
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
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