Fig. 2
From: The increased motion of lumbar induces ligamentum flavum hypertrophy in a rat model
Radiological analysis at 8 weeks postoperatively. a Wide disc space and anterior osteophyte formation was found on L5/6 of flexion position and extension position on lateral radiographs. b The disc height ratio of the flexion position was larger in the rats in the experimental group than in the rats in the sham groups. c The anterior disc height ratio of the extension position was larger in the rats in the experimental group than in the rats in the sham group. d The extension ratios were larger in the rats in the experimental group than in the rats in the sham group