Fig. 1From: The evaluation of degeneration of posterior cruciate ligament using CT Hounsfield unit in knee osteoarthritisSagittal image of PCL. PCL is divided into three regions: distal, middle, and proximal. HU in a region of interest (ROI), which was a 3.64 mm2 circle, was measured. The average HU from three randomly chosen ROIs was calculatedBack to article page