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NAVIGATED TOTAL KNEE REPLACEMENT: EXPERIENCE WITH NAVIGATED AND NON NAVIGATED TKR.

Queen Elizabeth Hospital NHS Trust, London, UK

One of the most important factors on which Total Knee Replacements results depend is accuracy of restoration of normal mechanical axis. It is believed that computer navigated TKR give better implants position therefore should improve long term results. We decided to check if computer navigation actually improves restoration of mechanical axis and implants placement in a single surgeon, single implant type series. We prospectively assessed 58 patients (60 knees). Each group (navigated versus non navigated) consisted of 30 knees. Patients were assessed clinically and radiographically using weight bearing full-length AP and short lateral films (PACS and IMPAX software). Clinical Results at 2 years were comparable in both groups (89% vs. 88% good or excellent result). Radiological results proved to be better in navigated knees regarding mechanical axis. There were no statistically important differences in other radiological parameters.

Correspondence should be addressed to Mr K Deep, General Secretary CAOS UK, Dept of Orthopaedics, Golden Jubilee National Hospital, Glasgow G81 4HX, Scotland. Email: caosuk{at}gmail.com