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Thoracic scoliosis fusion in adolescent and adult idiopathic scoliosis using posterior translational corrective techniques (Isola): is maximum correction of the thoracic curve detrimental to the unfused lumbar curve?

BACKGROUND CONTEXT: Postoperative coronal decompensation in selective thoracic fusion was reported with derotation maneuvers when using the Cotrel-Dubousset (CD) system. Isola instrumentation is a multiple anchor system that corrects spine deformity with segmental vertebral translation to a predetermined contoured longitudinal member. PURPOSE: To evaluate the efficacy of translational corrective techniques using Isola instrumentation in thoracic fusion for adolescent and adult idiopathic scoliosis patients. STUDY DESIGN/SETTING: This is a retrospective review of adolescent and adult patients with idiopathic scoliosis who underwent posterior thoracic fusion using translational corrective techniques with Isola instrumentation. PATIENT SAMPLE: Twenty-two patients (14 adolescents with idiopathic scoliosis, 8 adults with scoliosis) who underwent posterior thoracic fusion using translational corrective techniques were evaluated. OUTCOME MEASURES: The charts, radiographs and self-assessment questionnaire were reviewed. METHODS: Comparative analysis was done between patients who had Lenke Type A curves (Group 1) and Lenke Type B or C curves (Group 2) for both adolescent and adult scoliosis groups. RESULTS: The mean follow-up was 54 months (range, 33 to 80 months). The mean preoperative Cobb angle of thoracic and lumbar curves in all 22 patients was 48 degrees (range, 34 to 64 degrees) and 31 degrees (range, 20 to 46 degrees), respectively. Postoperative measurements were 16 degrees (range, 0 to 28 degrees) for thoracic and 13 degrees (range, 2 to 25 degrees) for lumbar (67% thoracic and 60% lumbar correction) in Group 1, and 19 degrees (range, 1 to 33 degrees) for thoracic and 12 degrees (1 to 21 degrees) for lumbar at latest follow-up (61% thoracic and 61% lumbar correction) in Group 2. There was no difference in the final correction of the lumbar curves between Groups 1 (64%) and 2 (58%), although the Cobb angle in Group 2 was larger. Radiographic coronal decompensation occurred in only one patient in Group 2, who remained asymptomatic and required no further treatment. Clinical outcome assessment showed 100% satisfaction (n=15), 92% relief of symptoms (n=13) and 92% improvement of activities in both groups. CONCLUSIONS: Fusion of the major thoracic curve using translational corrective technique (Isola) in patients with idiopathic scoliosis is an effective procedure that achieves high patient satisfaction while providing excellent correction of both the thoracic and lumbar curves. Unlike rotational corrective techniques (CD), clinical decompensation requiring further treatment did not occur in any patient treated with this method

Keywords : Adolescent,Adult,analysis,Cohort Studies,diagnostic imaging,Female,Follow-Up Studies,Humans,instrumentation,Lumbar Vertebrae,Male,methods,Orthopedic Fixation Devices,Patient Satisfaction,Patients,physiology,Posture,Radiography,Range of Motion,Articular,Retrospective Studies,Risk Assessment,Scoliosis,Self-Assessment,Severity of Illness Index,Spinal Fusion,Spine,Statistics,Nonparametric,surgery,Thoracic Vertebrae,Treatment Outcome,, Scoliosis,Fusion,Adolescent, knee pain injection therapy

Date of Publication : 2004 Mar

Authors : Goshi K;Boachie-Adjei O;Moore C;Nishiyama M;

Organisation : Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA

Journal of Publication : Spine J

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/15016398

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Thoracic scoliosis fusion in adolescent and adult idiopathic scoliosis using posterior translational corrective techniques (Isola) is maximum correction of the thoracic curve detrimental to the unfused lumbar curve? | Iliohypogastric nerve pain

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