Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Extent of Disc Degeneration after Single-Level Cervical Anterior Microforaminotomy Analyzed with Long-Term Radiological Data

  • Han, Chul (Department of Emergency Medicine, School of Medicine, Ewha Womans University) ;
  • Kim, Myung-Hyun (Department of Neurosurgery, School of Medicine, Ewha Womans University)
  • Received : 2013.11.27
  • Accepted : 2014.09.06
  • Published : 2014.09.28
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Abstract

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 correlated 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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References

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