Bintcliffe I W
J R Soc Med. 1983 Apr;76(4):262-5.
A high rate of infection was found to occur when total hip replacement were performed in an operating theatre used by a variety of surgical specialities. Because of this, a downward displacement laminar flow enclosure was installed to provide ultraclean air operating conditions. Retrospective examination of 419 total hip replacements, carried out over a six-year period during which the enclosure was installed, showed a reduction in the infection rate from 3.2% to 0.4% (P = 0.05) when using the enclosure. The infections were associated with a postoperative wound discharge and with revision surgery but were less frequent when the enclosure was used. Prosthetic loosening was found to be common when metal-to-metal prostheses were used. Working in an enclosure with side panels, wearing body exhaust units, was generally considered to be so noisy as to restrict communication.
在一个供多个外科专科使用的手术室中进行全髋关节置换手术时，发现感染率很高。因此，安装了一个向下移位的层流罩，以提供超洁净空气的手术条件。对在安装该层流罩后的六年期间进行的419例全髋关节置换手术进行回顾性检查发现，使用该层流罩时感染率从3.2%降至0.4%（P = 0.05）。感染与术后伤口引流和翻修手术有关，但使用层流罩时感染频率较低。发现使用金属对金属假体时假体松动很常见。在带有侧板的层流罩中工作，佩戴身体排气装置，通常被认为噪音太大，限制了交流。
