CT EVALUATION OF THE EFFECT OF ALICI POSTERIOR AND ANTERIOR SPINAL INTRUMENTATION ON VERTEBRAL ROTATION IN THE CORRECTION OF SCOLIOSIS
Journal Title: Journal of Turkish Spinal Surgery - Year 1990, Vol 1, Issue 2
Abstract
The rotational angle differences of 34 patients who have undergone Ahci anterior spinal spinal instrumentation and Aha posterior spinal instrumentation were evaluated by CT. Twentyfour of them were idiopathic, 5 of them congenital and the other 5 were paralythic scoliosis. In idiopathic scoliosis; average preoperative Cobb angle for thoracic curves were 52.4° corrected to 10 for an average correction of 79.4 % while for lumbar curves the preoperative Cobb angle was 36.3° corrected to 2.2° for an average correction of 93 %. In paralythic scoliosis; the average preoperative Cobb angle was 83° corrected to 24° for an average correction of 71 % and in congenital scoliosis the Cobb anlge changed from an average of 57.8° to 21° post-operatively for an average correction of 63.7 %. The average RA (AN1) preoperatively was 19° which improved to 8.7° postoperatively for an average correction of 44 % in idiopathic scoliosis. RA (AN2) improved from 18.9° preoperatively to 10.8° postoperatively (29 %) RA(SAG) improved from 9° preoperatively to 9.15° postoperatively (34.4 %). In congenital scoliosis the average RA(ANl) correction was 4% with an average RA(AN2) correction of 17.6 % and an average RA(SAG) correction of 0.5 %. In paralythic scoliosis, the average correction of RA (AN1) was 33.4 %, the average correction of RA (AN2) was 19.2 % and the average correction of RA(SAG) was 32.6 %. The change in rotation and in the sagittal and frontal planes of the patients who have undergone Aha ASI and PSI are evaluted both on conventional radiographs and CT.
Authors and Affiliations
E. Alıcı, I. Kovanlıkaya, N. Erel, Ö. Baran
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