The goal of this clinical trial is to compare two differential tourniquet pressure in lower extremity surgery cases. The main questions it aims to answer are: * What are the perioperative neurophysiological effects of ischemia and compression in the tissue under the tourniquet? * Are the effects of two different tourniquet pressures on neuromonitoring significantly different? * Can the ideal time of the reperfusion interval be evaluated by neuromonitoring? * Are the effects of two different tourniquet pressures on the quadriceps denervation significantly different from each other? Participants meeting the inclusion criteria will be evaluated for parameters to be used preoperatively. It will be evaluated in the 1st day, 1st week and 1-month follow-ups in the postoperative period. The investigators will compare two different tourniquet pressure ( Limb occlusion pressure +50 mmHg / + 100 mmHg) to see if it will be evaluated whether there is a significant difference in terms of quadriceps denervation, vas scores, total blood estimate volume loss, intraoperative MEP decrease, and recovery times, quadriceps tendon thickness, thigh circumfrences.
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MEP 50% reduction in intraoperative neuromonitorization
Timeframe: Intraoperative
MEP full recovery intraoperative neuromonitorization
Timeframe: Intraoperative
Ahmet Muçteba YILDIRIM, Asistant Dr