Antero-Medialisation of the Tibial Tubercle for Patellar Instability

• Author(s): Dantas, P ; Nunes, C ; Moreira, J ; Amaral, LB
• Date: 2005
• Persistent ID: http://hdl.handle.net/10400.17/754
• Origin: Repositório do Centro Hospitalar de Lisboa Central, EPE
• Subject(s): Artroscopia; Luxações; Fémur; Instabilidade Articular; Osteotomia; Avaliação da Dor; Rótula; Resultado de Tratamento
• Document Type: Article
• Language: English

Description

We reviewed 19 patients (24 knees) with patellofemoral instability treated surgically with antero-medialisation of the tibial tubercle and lateral retinacular release. Twenty-two knees had recurrent patellar dislocation and two patellar subluxation. Lateral retinacular release was performed arthroscopically in 15 knees. Average follow-up was 52 (16-86) months. There was one postoperative haemarthrosis and one failed fixation, which needed surgical revision. The average Lysholm score improved from 63.3 to 98 and only one knee had persistent patello-femoral pain postoperatively. The patellar tilt angle improved from 9.4 degrees to 5.5 degrees . There were no redislocations. We find that the surgical technique produces a consistent correction of patellar instability, but long-term studies are needed to confirm whether it can prevent arthritic degeneration.