Journal
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
Volume 18, Issue 7, Pages 945-948Publisher
SPRINGER
DOI: 10.1007/s00167-010-1074-8
Keywords
Revision TKA; Infected TKA; Implants; Revision surgery
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We reviewed the peri-operative and financial data of patients who underwent revision total knee arthroplasty in our institution between 1997 and 2006. The aims were to compare difference in cost between aseptic and septic cases and to identify the sources of preventable cost increase in revision knee procedure. The study group comprised 117 women (65%) and 62 men (35%). The median age of patients decreased from 73 years (37-83 years) in 1997-2001 to 70 years (15-91 years) in 2002-2006, a decline of 4% (P < 0.05). The mean ASA scores also dropped from 3 to 2 between the two periods. Despite this, the mean total cost of revision knee procedure continued to increase. Patients undergoing revision arthroplasty because of infection had much higher (P = 0.0001) cost compared to their aseptic counterpart. Increase in the costs of investigations (P < 0.05) and implant (P < 0.05) was the major contributing factors. The cost of implants increased by 32-35% (P < 0.05) depending on implant selection. Changing demographics will increase the requirement for this surgery and thus increase its overall cost to society. Cost increases associated with unnecessary investigations, prolonged hospital stay and use of expensive implants should be avoided.
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