Sphenus block reduces hospital stay after knee epiphysiodesis - a triple blind superiority trial

HEALTH CONDITION OR PROBLEM STUDIED: We include 44 patients (22 verum 22 placebo) who have to ondergoe percutan epiphysiodesis of both knees under gerneal anesthesia. epifysiodese saphenus blok. INTERVENTION: Single shot saphenous nerve block with either Ropivacaine or sodium chloride PRIMARY OUTCOME: lenght of stay after surgery SECONDARY OUTCOME: intra- and postoperative opiod consumption NRS pain scores time in the post anesthetic care unit time to walk (with crutches) strength of the quadriceps muscle overall patient satisfaction