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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

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 +/- 13.0 degrees Preop to 16.0 +/- 9.0 degrees PO(p < 0.0001), and increased to 18.4 +/- 8.6 degrees (p = 0.12) FFU. This revealed a 72.7% correction rate and a correction loss of 2.4 degrees (3.92%). The thoracic kyphosis decreased little at FFU (22 +/- 12 degrees to 20 +/- 6 degrees , (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 Keywords : Adolescent,Adult,complications,Kyphosis,methods,Patients,Rotation,Scoliosis,surgery,Taiwan,Universities,Young Adult,, Correction,Adolescent,Idiopathic,Scoliosis, myofascial specialist

Date of Publication : 2012 Feb 19

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

Organisation : Department of Orthopaedic Surgery, National Taiwan University Hospital, No, 7, Chung San South Road, Taipei 100, Taiwan. [email protected]

Journal of Publication : Scoliosis

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/22340624

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