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The Journal of Bone and Joint Surgery, Vol 76, Issue 1 104-109, Copyright © 1994 by Journal of Bone and Joint Surgery, Inc

JOURNAL CONTENTS

Eighteen-level analysis of vertebral rotation following Harrington-Luque instrumentation in idiopathic scoliosis

S Rajasekaran, JC Dorgan, JF Taylor and PH Dangerfield
Regional Spinal Centre, Royal Liverpool Childrens Hospital, England.

We used the Perdriolle method to measure the rotation of each vertebra from the seventh cervical to the fifth lumbar level, before and after posterior spinal arthrodesis and Harrington-Luque instrumentation in fifteen patients who had idiopathic scoliosis. The primary curve was corrected an average of 50 per cent and the secondary curve, an average of 73 per cent. Following the operation, the average number of vertebrae involved in the primary curve increased from seven (range, five to ten) to nine (range, seven to fifteen). The rotation of the apical vertebra of the primary curve increased 10 degrees in four patients and 5 degrees in two patients and decreased 5 degrees in one patient. The rotation of the apical vertebra of the secondary curve increased 10 degrees in three patients and 5 degrees in one patient and decreased 5 degrees in four patients. In seven patients, correction of the curve was associated with unexpected counter-rotation, beyond the levels of instrumentation, of three or more vertebral segments that had been in neutral position before the operation.
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J. G. JARVIS and R. N. GREENE
Adolescent Idiopathic Scoliosis. Correction of Vertebral Rotation with Use of Wisconsin Segmental Spinal Instrumentation
J. Bone Joint Surg. Am., November 1, 1996; 78(11): 1707 - 12.
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