Fig. 1

A 58-year-old woman presented with right knee pain and swelling for a month. (A) Baseline MRI showed a radial tear at the posterior root of the medial meniscus. The distance from the torn meniscal root to its bony attachment was 8 mm (yellow line). Interestingly no significant meniscal extrusion was noted at this time. (B) At 7 months after the arthroscopic meniscal root repair. The meniscal root showed complete healing. Note the slightly increased signal intensity in the repaired meniscal root, which is a normal post-operative finding [17]