Door opening affects operating room pressure during joint arthroplasty

Simon C. Mears, Renee Blanding, Stephen M Belkoff

Research output: Contribution to journalArticle


Many resources are expended to ensure a sterile operating room environment. Efforts are made to prevent exposure of patients to personnel and to achieve positive room pressure to keep out airborne contaminants. Foot traffic into and out of the operating room during surgery can undermine these efforts. The authors investigated the number and duration of operating room door openings during hip and knee arthroplasty procedures and the effect of the door openings on room pressure. They tested the hypothesis that door openings defeat positive pressure, permitting air flow into the room. Room pressure and door status were monitored electronically during 191 hip and knee arthroplasty procedures. Operating room staff were unaware that data were being collected. The authors evaluated the data with regression analysis to determine whether the number and duration of door openings had an effect on room pressure. Significance was set at P

Original languageEnglish (US)
Pages (from-to)e991-e994
Issue number11
Publication statusPublished - Nov 1 2015


ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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