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BILATERAL SIMULTANEOUS TOTAL KNEE REPLACEMENTS IS IT SAFE? THE HARLOW EXPERIENCE



Abstract

Purpose of Study: To assess the safety of our practice of Bilateral Simultaneous Total Knee Replacements.

Methods: We retrospectively reviewed 202 patients (404 knees) who underwent bilateral simultaneous total knee replacements using the DePuy PFC Sigma Cruciate Sacrificing Endoprosthesis between January 2000 and January 2006. There were 103 males and 99 females with an average age of 71.3 years (range 41–90 years) included. Indication for surgery was Osteoarthritis in 190 patients and Rheumatoid Arthritis in 12 patients. All patients were reviewed at 6 weeks, 1 year and then yearly post surgery.

Results: The average hospital stay was 12.4 days (range 5–38 days) with 6 patients needing HDUadmission post surgery. The average observed blood loss in the drains post surgery was 1200ml (700–2600ml) with an average drop in Haemoglobin of 4.1%, 71% of patients needed a blood transfusion post surgery. Two patients (0.99%) developed a deep vein thrombosis and 2 patients (0.99%) developed a pulmonary embolus.3 (1.48%) deaths were encountered in the immediate post operative period (within 30 days of surgery) and 6 (2.9%) patients suffered a myocardial infarct post surgery.14 (6.9%) patients developed a superficial wound infection of which 10(4.9%) needed a formal washout. 8(3.96%)knees needed a manipulation under anaesthesia for a poor range of movement, and 2(.99%) needed revision total knee replacement for infection.

Conclusion: Bilateral simultaneous total knee replacement is a safe procedure in our experience Complication rates observed comparable to published literature on the subject

Correspondence should be addressed to Mr T Wilton, c/o BOA, BASK at the Royal College of Surgeons, 35–43 Lincoln’s Inn Fields, London WC2A 3PE, England.