Da Costa Alex Rodrigues, Kothari Ami, Bannister Gordon C, Blom Ashley W
Avon Orthopaedic Centre, Southmead Hospital, Westbury-on-Trym, Bristol, UK.
Ann R Coll Surg Engl. 2008 Jul;90(5):417-9. doi: 10.1308/003588408X300993.
Infection is a devastating complication of surgery. Intra-operative wound contamination is a common cause of infection. A number of measures have been effective in reducing wound contamination. One such measure is laminar flow. Controversy exists as to whether it is safe to keep open instruments and implants outside the laminar flow. This study compares bacterial contamination of wood, plastic and stainless steel within and outside the laminar flow.
Identically shaped and sized tiles were left for 90 min within and outside the laminar flow and then cultured for bacterial growth.
A third of metal and plastic tiles were contaminated, but only 10% of wooden tiles, suggesting that wood is a more hostile environment for bacteria. There was no difference in contamination between tiles placed inside and those placed outside the laminar flow.
This study suggests that placing instruments and implants outside the laminar flow is a safe practice.
感染是手术中一种极具破坏性的并发症。术中伤口污染是感染的常见原因。许多措施已被证明在减少伤口污染方面行之有效。层流就是其中一项措施。对于将开放的器械和植入物置于层流之外是否安全存在争议。本研究比较了层流内外木质、塑料和不锈钢材质物品的细菌污染情况。
将形状和大小相同的瓷砖分别置于层流内外90分钟，然后进行细菌生长培养。
三分之一的金属和塑料瓷砖受到污染，而木质瓷砖仅有10%受到污染，这表明木材对细菌而言是更不利的生存环境。置于层流内和层流外的瓷砖在污染情况上并无差异。
本研究表明将器械和植入物置于层流之外是一种安全的做法。
