Saphenous nerve block is an effective regional technique for post-menisectomy pain

In this study we have evaluated the post menisectomy pain relief offered by Saphenous nerve block. This study was planned on 40 patients with a pre-operative and post operative diagnosis of medial meniscus lesion undergoing partial menisectomy arthroscopically. Patients were randomized into 2 groups where Group I received a preoperative Saphenous block while group 2 did not receive a peripheral block, but received 1 ml of saline as placebo injection. After blocks both groups received general anesthesia and IV patient controlled analgesia (PCA) with tramadol for post operative pain relief. Patients rest and activity pain scores were evaluated on post operative 0, 2, 4, 6, 12 and 24 h using visual analog scale (VAS). Total tramadol consumption as well as pain at rest, when weight bearing and the need for external support while walking were recorded. Group I VAS scores were statistically lower then group II during the time of observation periods at rest as well as active movement periods. Tramadol consumption through IV PCA was statistically significantly lower in group I than in group II (P < 0.05). Pain during walking measured at 24 h was significantly different with better results in group I (P < 0.001). Saphenous nerve block is used for different indications; it can also be a good analgesic method for arthroscopic interventions. We have shown it to be effective after medial partial menisectomies. According to our knowledge this report is the first one utilizing saphenous nerve block for pain after arthroscopic medial menisectomy.