Segmental correction of adolescent idiopathic scoliosis by all-screw fixation method in adolescents and young adults. Minimum 5 years follow-up with SF-36 questionnaire.

By London Spine

Segmental correction of adolescent idiopathic scoliosis by all-screw fixation method in adolescents and young adults. Minimum 5 years follow-up with SF-36 questionnaire.

Scoliosis. 2012 Feb 19;7(1):5

Authors: Yu CH, Chen PQ, Ma SC, Pan CH

Abstract
ABSTRACT: BACKGROUND: In our institution, the fixation technique in treating idiopathic scoliosis was shifted from hybrid fixation to the all-screw method beginning in 2000. We conducted this study to assess the intermediate -term outcome of all-screw method in treating adolescent idiopathic scoliosis (AIS). METHODS: Forty-nine consecutive patients were retrospectively included with minimum of 5- year follow-up (mean, 6.1; range, 5.1-7.3 years). The average age of surgery was 18.5 +/- 5.0 years. We assessed radiographic measurements at preoperative (Preop), postoperative (PO) and final follow-up (FFU) period. Curve correction rate, correction loss rate, complications, accuracy of pedicle screws and SF-36 scores were analyzed. RESULTS: The average major curve was corrected from 58.0 +/- 13.0degrees Preop to 16.0 +/- 9.0degrees PO(p < 0.0001), and increased to 18.4 +/- 8.6degrees(p = 0.12) FFU. This revealed a 72.7% correction rate and a correction loss of 2.4degrees (3.92%). The thoracic kyphosis decreased little at FFU (22 +/- 12degrees to 20 +/- 6degrees, (p = 0.25)). Apical vertebral rotation decreased from 2.1 +/- 0.8 PreOP to 0.8 +/- 0.8 at FFU (Nash-Moe grading, p < 0.01). Among total 831 pedicle screws, 56 (6.7%) were found to be malpositioned. Compared with 2069 age-matched Taiwanese, SF-36 scores showed inferior result in 2 variables: physical function and role physical. CONCLUSION: Follow-up more than 5 years, the authors suggest that all-screw method is an efficient and safe method.

PMID: 22340624 [PubMed – as supplied by publisher]