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Research Article Open Access
Anterior knee pain and patellofemoral instability have a multi-factorial aetiology and are therefore difficult to treat. A variety of surgical treatment options have been proposed for such patients. Tibial tubercle transfer is one such option and has been described using different surgical techniques. There is however a paucity of literature regarding the procedure itself and its clinical outcomes. Purpose: This study describes the clinical efficacy and outcome of a Tibial Tubercle Transfer (TTT). Study Design: Case series. Methods: 86 consecutive patients who underwent TTT for anterior knee pain and/or patellofemoral instability were studied prospectively. All patients received the same rehabilitation protocol postoperatively. Clinical outcome was measured using the Kujala knee score pre-operatively and at follow-up. Patients were also asked to rate their satisfaction with the procedure. Mean duration of follow up was 1.7 years (6 months to 3 years). Results: 94% of patients were satisfied with their decision to undergo the operation at the latest follow up. The mean Kujala score pre-operatively was 46 points with a Standard deviation (SD) of 14.35. At 6 months the mean Kujala score had improved to 70 points with a standard deviation of 20.25. Patients with patella-femoral instability alone showed greater improvement of Kujala scores compared to patients with anterior knee pain alone or pain plus instability. Conclusion: Our experience suggests that tibial tubercle transfer provides a safe and effective surgical treatment option for patients with anterior knee pain and patellofemoral instability. Patients with patellofemoral instability preoperatively derived the most benefit.
Patellofemoral disorders, Anterior knee pain, Tibial tubercle transfer, Arthritis, Ankylosing Spondylitis, Synovial Fluid, Joint Replacement