In this prospective and randomized study, we aimed to compare the effect of of three sitting positions (the traditional sitting position (TSP), the harmstring stretch position (HSP), and the squatting position on the success rate of combined spinal epidural anesthesia in patients undergoing total knee arhtoplasty (TKA) or total hip arthroplasty (THA) surgery.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Ease of identifying of epidural and subarachnoidal space
Timeframe: 3 months