Ito H, Neo M, Yoshida M, Fujibayashi S, Yoshitomi H, Nakamura T
Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan.
Rheumatol Int. 2007 Apr;27(6):567-74. doi: 10.1007/s00296-006-0256-7. Epub 2006 Nov 9.
We evaluated the efficacy of the computer-assisted cervical pedicle screw insertion, compared with those inserted without the help of the system on the cervix of rheumatoid arthritis (RA) patients. Eighty-six cervical pedicle screws were inserted without the help of the system. Of the 86, 59 screws were in non-RA patients with degenerative spine, and 27 were in RA patients. The accuracy of the screw insertions was evaluated by a CT-based method. Then, 25 screws were inserted with the system into the cervical spines between C2 and C6 in RA patients (Navigation group). The efficacy of the system was assessed by the CT-based method, compared with 27 screws inserted without the system (Conventional group). The screws in RA patients tended to be more deviated than those in non-RA patients. In Conventional group, four screws (15%) were placed far laterally, and two (7%), far medially. In contrast, no screw was placed far laterally or medially in Navigation group (P < 0.05).
我们评估了计算机辅助颈椎椎弓根螺钉置入术的疗效，并将其与在类风湿性关节炎（RA）患者颈椎上在无该系统辅助情况下置入螺钉的疗效进行了比较。86枚颈椎椎弓根螺钉是在无该系统辅助的情况下置入的。其中，59枚螺钉置入了患有退行性脊柱疾病的非RA患者体内，27枚置入了RA患者体内。通过基于CT的方法评估螺钉置入的准确性。然后，将25枚螺钉通过该系统置入RA患者C2至C6之间的颈椎（导航组）。通过基于CT的方法评估该系统的疗效，并与27枚未通过该系统置入的螺钉（传统组）进行比较。RA患者的螺钉比非RA患者的螺钉更容易出现偏差。在传统组中，4枚螺钉（15%）放置在外侧较远位置，2枚（7%）放置在内侧较远位置。相比之下，导航组中没有螺钉放置在外侧或内侧较远位置（P<0.05）。
