Long-Term Clinical Outcome of Trillat Tibial Tubercle Osteotomy

Abstract

Trillat procedure has a relatively high satisfaction level according to the patients. Clinical outcome and knee function were however lower than expected. There are a wide range of different techniques in the treatment of patella luxation. Trillat procedure is one of the methods, which have earlier been used to stabilize the patella by correcting patella aligenment; however, there is still need for verifying the long term outcome of this procedure. The purpose is to investigate long term knee function and satisfaction among patients after Trillat- procedure. 100 patients were treated with Trillat procedure at Aalborg University Hospital in the period 2000 to 2012. Data retrieval by systematically reviewing all patients charts. 27 patients were present at follow up in 2015, who were scored with Kujala, IKCD, Tegner, Lysholm, SANE. A physical examination was performed testing the stability of the patella compared to the other side. Range of motion and thigh muscle circumferance were evaluated. 27 patients were present at the time of follow up; 20 females and 7 males. Average age at the time of the procedure was 20,2 years, and average age at follow up was 29,9 years. The Kujala-score showed “excellent” or “good” results with 18,5% of the patients, The Lysholm-score showed “excellent” or “good” results with 22,2% of the patients. The IKDC-average-score was 54,4. The Tegner-score was 6,34 before the procedure and 8,04 after the procedure, hereby 1,70 points higher, meaning a reduced level of function. The SANE-average-score was 6,23. 74,1% had a satisfaction- score above 5 and would go through the same procedure again. 37,0% had experienced by the time of the follow up. The Trillat procedure has a relatively high satisfaction level according to the patients. Clinical outcome and knee function were however lower than expected.