RESUMEN
INTRODUCTION: Surgical treatment of femoroacetabular impingement (FAI) is becoming a worldwide current practice. In this work we describe our developed minimal-invasive anterior technique as well as the results obtained in our first 117 patients. MATERIAL AND METHODS: We evaluated our first 117 operated hips in 115 patients, who underwent to femoroacetabular osteoplasty through minimally invasive anterior approach with a minimal follow up of 2 years. Hips were divided into 3 groups according to radiological Tönnis classification: 32 cases were included in group A (stage 0), 61 cases in group B (stage 1), 24 cases in group C (stage 2). A combined score method (Dexeus Combined Score) was used to compare these groups at 3 months, 6 months and 1 year and each subsequent year. RESULTS: In 30 cases (93.7%) group A, 56 (91.8%) group B and 14 (58.3%) group C satisfactory result was obtained at 6 months, without significant changes over the year (96.8%, 91.8%, 54.1% respectively). After 2 years same behaviour was observed in groups A and B, exception made with group C (96.8%, 93.4%, 45.8% respectively). Differences between groups A and B when compared to group C were statistically significant (p < 0.01). No statistical difference was observed between groups A and B (p > 0.05). CONCLUSIONS: Patients improve in their clinical and functional scores. However these results differed in patients with Tönnis stage 0 and 1 when compared to Tönnis 2. Thus, it seems reasonable to recommend to symptomatic patients surgical treatment of FAI as early as it appears.