Fig. 1. Transducer placement and ultrasound images with radiofrequency cannula for SMGN (A, B), SLGN (C, D), and IMGN (E, F). White dashed arrows indicate the needle trajectory. SMGN: superior medial genicular nerve, SLGN: superior lateral genicular nerve, IMGN: inferior medial genicular nerve, MFC: medial femoral condyle, LFC: lateral femoral condyle, MTC: medial tibial condyle, MCL: medial collateral ligament.
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