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Journal of Korean Neurosurgical Society 1999;28(3): 347-353. |
| Anterior Ceervical Interbody Fusion: Comparison Study between Simple Fusion, Locked and Non-locked Plating Systems. |
| Chun Kun Park, Young Geun Choi, Kyung Suck Cho, Chul Ji, Sung Chan Park, Joon Ki Kang |
| Department of Neurosurgery, College of Medicine, Catholic University, Seoul, Korea. |
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| ABSTRACT |
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The use of metallic plate and screws in the anterior cervical fusion has become generally acceptable and popular.
Mainly, there are two different plating systems available.
However, there has been few attempts to compare their clinical results with and without a plating system or between two different systems in a single series of clinical study. The authors reviewed 117 patients who underwent anterior cervical fusion during the period of January 1992 to September 1996. Simple fusion without a plating system was applied in 55 cases(group 1), a bicortical non-locked plate screw system in 25(group 2), and a monocortical locked plate screw system in 37(group 3). The average follow-up period was 13. 2 months. In group 1, twenty-two patients(40%) with fracture-dislocation or corpectomy required a rigid brace such as halo brace and Minerva cast for 3 months postope ratively and seven patients(13%) experienced graft complications, mainly graft extrusion. In group 2 and 3, the patients required only soft b races for 4 to 8 weeks and no patients experienced serious graft complications like ones in group 1 but, instead two patients with screw breakages, two back-outs and one non-union were observed. In comparison of the clinical complications such as hoarsness, there were no significant differences between the groups. In conclusion, the plating system in anterior cervical fusion appears to be safe despite the facts that mo re technical demands are required during surgery. It also provides better postoperative stability in the spine and permits earlier ambulation without a rigid brace. A monocortical locked plate screw system appears to have less hardware failures and better su rgical results than a bicortical non-locked plate screw system. |
| Key Words:
Anterior cervical interbody fusion; Bicortical non-locked plate and screw system; Monocortical locked plate and screw system B.O.P.; Allograft |
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