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Diagnostic value of routine drain tip culture in primary joint arthroplasty

Weinrauch, Patrick C. (2004) Diagnostic value of routine drain tip culture in primary joint arthroplasty. In 2004 Australian Orthopaedic Association Queensland Branch Meeting, 11 June 2004, Couran Cove, Queensland, Australia.

Abstract

Insertion of closed suction drains during primary knee and hip arthroplasty remains common practice. Concerns regarding colonisation and retrograde migration of bacteria along the drain length encourage early drain removal, usually within 24 hours. The diagnostic value of routine drain tip culture after primary joint arthroplasty has not been evaluated. Introduction Insertion of closed suction drains during primary knee and hip arthroplasty remains common practice. Concerns regarding colonisation and retrograde migration of bacteria along the drain length encourage early drain removal, usually within 24 hours. The diagnostic value of routine drain tip culture after primary joint arthroplasty has not been evaluated. Methods Culture results of drain tips retrieved after unilateral primary total knee or hip replacement were examined to assess correlation with postoperative superficial or deep infection. 393 cultures were performed over a 12 month period in 387 patients (145 hip replacements, 242 knee replacements). Patients were followed for a minimum of 3 months post surgery to assess for wound infection. Results 3 patients had a positive drain tip culture, none of which were diagnosed with either superficial or deep infection. 4 (1%) Patients were diagnosed with deep infection, 16 (4.1%) with superficial infection. No patient with either superficial or deep infection had a positive drain tip culture after their index procedure. The sensitivity of routine drain tip culture for the diagnosis of postoperative infection in primary joint arthroplasty was 0% ad the specificity was 99.2%. The financial cost of performing these cultures over a 12 month period was $12 210. Discussion This data does not support the practice of routine drain tip culture after primary hip or knee replacement.

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ID Code: 2716
Item Type: Conference Paper
Additional Information: For more information, please contact the author.
Keywords: Drain, Infection, Knee, Hip, Arthroplasty
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2004 (please consult author)
Deposited On: 29 Nov 2005
Last Modified: 19 May 2010 15:58

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