Scoliosis Correction with Thoracic Pedicle Screws: Posteroanterior C-arm Rotation Method.
10.4055/jkoa.2007.42.1.98
- Author:
Changju HWANG
1
;
Choon Sung LEE
;
Young Joon AHN
;
Seok Joong KANG
;
Ji Hyo KIM
;
Kyeong Il JEONG
;
Yung Tae KIM
;
Dong Ho LEE
Author Information
1. Department of Orthopedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, Korea. cslee@amc.seoul.kr
- Publication Type:Original Article
- Keywords:
Scoliosis;
Thoracic pedicle screw;
C-arm fluoroscopy rotation method
- MeSH:
Congenital Abnormalities;
Fluoroscopy;
Humans;
Scoliosis*;
Tomography, X-Ray Computed
- From:The Journal of the Korean Orthopaedic Association
2007;42(1):98-105
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose: This study evaluated a practical, safe and accurate method of thoracic pedicle screw insertion for the surgical treatment of scoliosis using the posteroanterior C-arm fluoroscopy rotation method. Materials and Methods: A total of 611 thoracic pedicle screws were inserted in 45 patients using the posteroanterior (PA) C-arm rotation method. CT scans were taken postoperatively in the transverse and sagittal sections to evaluate the pedicle screw placement. Results: A mean preoperative curve of 57.7o was corrected to 17.1o (range, 3o-45o) in the coronal plane. The postoperative CT scans revealed that 10 screws (1.6%) had penetrated the medial cortex by a mean distance of 3.0 mm and 56 screws (9.2%) penetrated the lateral cortex by a mean distance of 3.5 mm. No screw penetrated the inferior or superior cortex in the sagittal plane. However, 21 screws (3.4%) penetrated the anterior cortex. No neurological or vascular complications were encountered, and none of the screws required replacement. Conclusion: Thoracic pedicle screw insertion in scoliosis patients using the posteroanterior C-arm rotation method is a practical, simple and safe technique that allows the en face visualization of both pedicles by rotating the C-arm to compensate for the rotational deformity.
