Fig. 1From: Arthroscopic pie-crusting release of the posteromedial complex of the knee for surgical treatment of medial meniscus injuryArthroscopic pie-crusting release of the PMC. a With the knee joint in the valgus position, the probe did not pass vertically through the narrow medial space. b Multi-point pie-crusting release of the PMC with an 18-G needle. c After release, the probe passed vertically through the medial space, and the visual field was improvedBack to article page