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KMID : 0388720110180040186
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Journal of Korean Society of Spine Surgery
2011 Volume.18 No. 4 p.186 ~ p.194
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A Comparative Study of the Anterior Cervical Fusion with Harms Cage versus Iliac Bone Block: Clinical and Radiological Outcomes
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Chung Jae-Yoon
Lim Ji-Hyun
Seo Hyoung-Yeon
Kim Sung-Kyu
Lee Seung-Hun
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Abstract
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Study Design: A retrospective study.
Objectives: To evaluate the clinical and radiological outcomes of anterior cervical fusion within Harms cage versus an iliac bone block graft.
Summary of Literature Review: There is no current consensus regarding the optimal material for anterior cervical fusion.
Materials and Methods: This was a single-center study of 107 patients who either underwent anterior cervical fusion with an iliac bone block graft (n=56; group A) or a cancellous bone graft within the cervical Harms titanium cage (n=51; group B). Anterior plating occurred in all cases. Clinical outcomes and complications were evaluated using Visual Analogue Scale (VAS) scores and Odom’s Criteria. Radiological outcomes were evaluated by the height of vertebral bodies, sagittal lordosis, the rate of bony union, and the subsidence of cage.
Results: The VAS of donor site pain was significantly higher in group A than in group B at the final follow-up. Sagittal lordosis was increased in both groups, but was significantly higher in group B than group A. The rate of bony union was 95% and 91% for both groups 6 months after surgery and reached 100% for both groups at the final follow-up. In terms of cage subsidence, the highest point of subsidence was at the inferior and posterior aspect of the cage and the average amount of subsidence was approximately 1.3 mm at final follow-up.
Conclusions: Anterior cervical fusion using a cancellous bone graft within Harms titanium cage is a good method for anterior cervical fusion with iliac bone block.
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KEYWORD
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Anterior cervical fusion, Harms titanium cage, Iliac bone block
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