【关键词】 特发性脊柱侧凸； cdhorizon椎弓根钉； 临床疗效
clinical study of cdhorizon in idiopathic scoliosis∥
hao dingjun,he baorong,li yi,et al.
department of spinal surgery,xian red cross hospital,xian 710054，china
abstract：［objective］to discuss the effective method of idiopathic scoliosis and evaluate the result of screwrod and screwhookrod system.［method］from january 2000 to january 2004,85 cases with idiopathic scoliosis were treated by cdhorizon instrument.fiftyone cases were corrected with pedicle screws system only（group a）,34 cases were applicated with pedicle hooks or vertebral plate hooks in thoracic vertebra,while with pedicle screws system in lumbar vertebrae（group b）.the cobbs angle of coronal plane and sagittal plane and horizontal plane malformation were compared in preoperative score,postoperative score and the score at 2 years followup.［result］the mean followedup duration of 85 cases was three years and a half.the coronal plane and sagittal plane correction rate of group a was higher than that of group b at postoperative and 2year followup（p＜ 0.05）.there was significant difference between the two groups in loss of correction in coronal plane at postoperative 2 years.rotation was corrected by ⅰ to ⅱ degree in two groups.compared with preoperative score,the postoperative score decreased significantly（p＜0.05）in two groups.however,there was no marked difference between the postoperative score and 2year followup（p＞0.05）.［conclusion］using cdhorizon instrument is a very effective choice for patients with idiopathic scoliosis.pedicle screwrod system offers a significantly better curve correction compared with screwhookrod system.