Objective: To evaluate clinically and radiographically patients with adolescent idiopathic scoliosis (AIS) submitted to posterior arthrodesis using pedicle screws-only constructs and correlate image results with SRS-24 scores. METHODS: Twenty five patients with AIS submitted to posterior arthrodesis were evaluated. The follow-up was 23.7 months ranging from 12 to 35. Radiographic criteria were reviewed regarding the deformity correction and a specific questionnaire developed by Scoliosis Research Society (SRS-24) was applied. RESULTS: The sample was composed by 92% females and 8% males. The average age was 14.2 years. The Cobb angle average measured by anterior-posterior roentnogegram was 24.4° at proximal thoracic curve, 54.9° at principal thoracic and 38.5° at the lumbar curve. The mean angular values obtained after the surgery were 11.0°; 16.7° and 12.2° respectively and the average correction of the principal thoracic curve was 69.9%. The mean SRS-24 scores were 98.1 points. Two patients had post-operative complications; however, there were no neurological complications. CONCLUSIONS: The technique showed to be effective on surgical treatment of AIS, with high percentage of deformity correction, low risk of complications and satisfactory clinical results. There was no correlation between the percentage of correction (thoracic or lumbar) and/or the post-operative value of angular deformity and the SRS-24 results, neither with "satisfaction" or "self-image after surgery" domains.
Scoliosis; Surgery; Adolescent; Treatment outcome; Bone screws
