title: Contamination risks from a high-speed bone burr.
abstract: METHODS
  The authors recorded the contamination rate at a mock surgical site below a high-speed burr creating debris from a fresh-frozen allograft specimen.
  
  
  OBJECTIVE
  To document possible contamination rates associated with high-speed burr use.
  
  
  BACKGROUND
  The literature contained no studies addressing a known rate of contamination from high-speed burr use.
  
  
  METHODS
  Samples of debris were collected in a mock-up of an operation involving bone burring. Set distances were maintained between objects within the field. High-speed bone burring was performed on fresh-frozen allograft bone specimens, and falling debris was collected on sterile culture plates. Control specimens were obtained randomly. Two hundred test and 20 control samples were collected by means of standard sterile techniques.
  
  
  RESULTS
  Thirty-five percent of the cultured specimens from the test group grew skin flora, compared with 10% from the control group (P = 0.02).
  
  
  CONCLUSIONS
  The authors propose that the higher contamination rate in the experimental samples resulted from airborne bone chips striking nonsterile surfaces before landing on the culture plates. Such contamination may increase the risk of wound infection.
authors.affiliation: Department of Orthopedics, Scott & White Clinic, Temple, Texas, USA.
authors.forename: R B
authors.initials: RB
authors.lastname: Schultz
authors.forename: R A
authors.initials: RA
authors.lastname: Probe
authors.forename: G P
authors.initials: GP
authors.lastname: Holmes
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D001842:Bone and Bones / Q000382:microbiology* / Q000601:surgery; D006801:Humans; D017053:Infection Control / Q000379:methods; D009873:Operating Rooms; D010027:Osteotomy / Q000009:adverse effects*; D012307:Risk Factors; D013530:Surgical Wound Infection / Q000382:microbiology* / Q000517:prevention & control; D014184:Transplantation, Homologous