title: Comparison of horizontal and vertical unidirectional (laminar) air-flow systems in orthopedic surgery.
abstract: The microbiological evaluation of a horizontal walled unit, a horizontal wall-less unit and a vertical wall-less unidirectional airflow unit revealed a statistical reduction in the wound and back table air settle plate counts for the 2 horizontal systems as compared to the vertical system.
mesh_terms: D000391:Air Microbiology; D006615:Hip / Q000601:surgery; D006801:Humans; D007595:Joint Prosthesis; D008722:Methods; D009873:Operating Rooms; D009985:Orthopedics; D013530:Surgical Wound Infection / Q000382:microbiology; D014691:Ventilation