Computer-Assisted Navigation in Total Knee Replacement: Results of an Initial Experience in Thirty-five Patients

The success of total knee replacement surgery depends on several factors, including proper patient selection, appropriate implant design, correct surgical technique, and effective perioperative care. The outcome of total knee replacement surgery is particularly sensitive to variations in surgical technique 1-9. Incorrect positioning or orientation of the implant and improper alignment of the limb can lead to accelerated implant wear and loosening as well as suboptimal functional performance. A number of studies have suggested that alignment errors of >3° are associated with more rapid failure and less satisfactory functional results after total knee arthroplasty 1,10-20. Recent studies have also emphasized that the most common cause for revision total knee replacement is error in surgical technique.