1️⃣ Chronic PCL Tears: MR Imaging Insights
✅MR imaging for chronic PCL injuries is less reliable, often confusing ligament continuity with partial or no tears. Identifying chronic partial tears is difficult, even with clinical indicators.
Source: Radiology, Oct 2016; 281(1):23-40.
✅ Chronic PCL damage may show ligament thickening or elongation, with abnormal shape but seldom discontinuity.
Source: Magn Reson Imaging Clin N Am, May 2022; 30(2):261-275.
✅In studies, 28% of chronic PCL injuries appeared nearly normal on MRI, while 44% showed ligament continuity with morphologic abnormalities.
Source: Magn Reson Imaging Clin N Am 2014; 22:557–580.
2️⃣ Chronic PCL Injuries and Associated Chondral Lesions:
✅ About 80% of chronic cases exhibit chondral lesions on the medial femoral condyle and patellofemoral areas.
✅ Patients tend to lock their knees in extension to prevent posterior tibial translation, potentially leading to patellofemoral chondral changes over time.
Source: Radiology, Oct 2016; 281(1):23-40.
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