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KMID : 1001920120520020114
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Journal of Korean Neurosurgical Society
2012 Volume.52 No. 2 p.114 ~ p.119
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Clinical Outcome of Modified Cervical Lateral Mass Screw Fixation Technique
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Kim Seong-Hwan
Seo Won-Deog
Kim Ki-Hong
Yeo Hyung-Tae
Choi Gi-Hwan
Kim Dae-Hyun
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Abstract
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Objective: The purpose of this study was 1) to analyze clinically-executed cervical lateral mass screw fixation by the Kim’s technique as suggested in the previous morphometric and cadaveric study and 2) to examine various complications and bicortical purchase that are important for b-one fusion.
Methods: A retrospective study was done on the charts, operative records, radiographs, and clinical follow up of thirty-nine patients. One hundred and seventy-eight lateral mass screws were analyzed. The spinal nerve injury, violation of the facet joint, vertebral artery injury, and the bicortical purchases were examined at each lateral mass.
Results: All thirty-nine patients received instrumentations with poly axial screws and rod systems, in which one hundred and seventy-eight screws in total. No vertebral artery injury or nerve root injury were observed. Sixteen facet joint violations were observed (9.0%). Bicortical purchases were achieved on one hundred and fifty-six (87.6%). Bone fusion was achieved in all patients.
Conclusion: The advantages of the Kim’s technique are that it is performed by using given anatomical structures and that the complication rate is as low as those of other known techniques. The Kim’s technique can be performed easily and safely without fluoroscopic assistance for the treatment of many cervical diseases.
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KEYWORD
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Lateral mass screw, Cervical vertebra, Kim’s technique, Complication
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