Journal
JOURNAL OF KOREAN NEUROSURGICAL SOCIETY
Volume 56, Issue 3, Pages 200-205Publisher
KOREAN NEUROSURGICAL SOC
DOI: 10.3340/jkns.2014.56.3.200
Keywords
Microforaminotomy; Disc height; Disc invasion; Disc degeneration
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Objective : To prove the extents and details of cervical degeneration after anterior microforaminotomy (AMF) with 6-years follow-up. Methods : A retrospective study of 24 patients, underwent single-level AMF, was performed. Clinical and radiologic data were analyzed with office charts, questionaires, and picture achieving and communication system images. Results : According to Odom's criteria, 91.6% achieved favorable outcome. The mean visual analog scale score was improved from 8.6 to 3, and the mean neck disability index was improved from 27.9 to 7.3 (p<0.01). Eighteen cases (75%) showed disc height (DH) decrease. The disc invasion was correlated with DH decrease (p<0.05). The disc height decrease con-elated with static, dynamic changes of shell angle and spur formation (p<0.05). Any radiological parameters did not affect the clinical outcome. Conclusion : AMF is an effective technique for treating unilateral cervical radiculopathy. It showed excellent surgical outcomes even in long-term follow-ups. However, a decrease in DH occurred in a considerable number of patients. Disc invasion during surgery may be the trigger of sequential degeneration.
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