4U1 Haque M,Shufflebarger H L,O'Brien M,et al.Radia- tion exposure during pedicle screw placement in adoles- cent idiopathic scoliosis:is fluoroscopy safe [ J ].Spine,2006, 31 (21) :2516-2520.
5Nowitzke A,Wood M,Cooney K.Improving accuracy and reducing errors in spinal surgery a new technique for tho- racolumbar level localization using computer-assisted im- age guidance [ J ].Spine, 2008,8 (4) : 597-604.
6Perisinakis K,Theocharopoulos N,Damilakis J,et al.Esti- mation of patient dose and associatedradiogenic risks from fluoroscopically guided pedicle screw insertion [J]. Spine, 2004,29 (14) : 1555-1560.
7Rosahl S K,Gharabaghi A,Liebig T,et al.Skin markers for surgical planning for intradural lesions of the thoracic spine. Technical note [J].Surg Neurol, 2002,58 (5) : 346- 348.
8Thomson J L.A simple skin marker for magnetic reso- nance imaging[J].Br J Radiol, 1988,61 (727) :638-639.
1Hsu W,Sciubba DM,Sasson AD,et al.Intraoperative localization of thoracic spine level with preoperative percutaneous placement of intravertebral polymethylmethacrylate[J].J Spinal Disord Tech,2008,21(1):72-75.
2Rosahl SK,Gharabaghi A,Liebig T,et al.Skin markers for surgical planning for intradural lesions of the thoracic spine[J].Surg Neurol,2002,58(5):346-348.
3Paolini S,Ciappetta P,Missori P,et al.Spinous process marking:a reliable method for preoperative surface localization of intradural lesions of the high thoracic spine[J].Br J Neurosurg,2005,19(1):74-76.
4Hsu W, Sciubba DM, Sasson AD, et al. lntraoperative localization of thoraeic spine level with preoperative percutaneous placement of intravertebral polymethyhnethacrylate. J Spinal Disord Teeh, 2008, 21(1): 72-75.
