O'Donovan N, Healy T E, Faragher E B, Wilkins R G, Hamilton A A
Br J Anaesth. 1986 Mar;58(3):280-3. doi: 10.1093/bja/58.3.280.
An inflatable wedge was used to support the lumbo-sacral curve of patients undergoing anaesthesia and surgery in either the supine or lithotomy position. Of the operative factors investigated, the presence of a wedge was the only one found to have a useful influence on the incidence of postoperative backache, which was reduced significantly (P less than 0.001).
在患者处于仰卧位或截石位接受麻醉和手术时，使用充气楔形物来支撑腰骶部曲线。在所研究的手术因素中，发现使用楔形物是唯一对术后背痛发生率有显著影响的因素，术后背痛发生率显著降低（P<0.001）。
