AB1214 PATIENT OUTCOMES AFTER TIBIAL HIGH OSTEOTOMY

Abstract

<h3>Background</h3> At a time when total or partial arthroplasty is taking on a predominant role in the treatment of medial ferno-tibial gonarthrosis, tibial valgus osteotomy with internal opening and filling with a bone substitute filling with a bone substitute wedge remains for many authors an indication of choice in young patients. <h3>Objectives</h3> The aim of our work is to evaluate the functional and radiological results of this type of osteotomy and to assess the osseointegration and resorption of the bone substitute. <h3>Methods</h3> This was a single-centre retrospective study osteotomies performed in 63 patients, collected between June 2016 and June 2020. We evaluated the functional outcome. Lysholm-Tegner and assessed osseointegration of the classification of the GESTO. <h3>Results</h3> The mean age of our patients was 55.6 ± 8.1 years. The mean body mass index (BMI) was. (BMI) was 31.56 ± 4 Kg.m-‘. According to the Ahlback classification: stage II was found in 64.7% of cases, stage III and I were found in 23% and 7.7% of cases respectively. 3 patients had stage IV gonarthrosis. The average follow-up was 24 months. There was only one case of plaque sepsis. The Lysholm-Tegner score was improved (p&lt;O,OOl) with a mean gain of 11.82/100. The mean internal laxity was reduced by 6o (p&lt;O, 001). The mean angular correction was 2.65° (p&lt;O,OOl). The postoperative tibial slope did not increase significantly: 5.98° ± 1.65° preoperatively and 6.38° ± 1.63° postoperatively(p=0.208). According to the GESTO classification: the rate of osseointegration rate was 18% at 3 months postoperatively and 98.5% at 6 months postoperatively. 98.5% at 6 months post-operatively. We had only one case of poor integration. At follow-up, no total resorption of the wedge was achieved less than 40% in 89% of cases and less than 60% in 19% of cases. The degree of satisfaction was good or excellent in 97%. <h3>Conclusion</h3> The use of wedges in the internal opening VTO was a determining factor in the determining factor in the accuracy of the correction. It also guarantees the bone capital thanks to its osteo-conductive effect and allows conductor effect and allows us to hope for greater simplicity in the event of a subsequent arthroplasty. <h3>Reference</h3> [1]Kuwashima U, Yonekura A, Itoh M, et al. Tibial condylar valgus osteotomy - indications and technique. J Exp Orthop 2020;7:30. <h3>Acknowledgements:</h3> NIL. <h3>Disclosure of Interests</h3> None Declared.