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KMID : 1001920040350030250
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Journal of Korean Neurosurgical Society
2004 Volume.35 No. 3 p.250 ~ p.255
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Midterm Follow-up Results of Anterior Cervical Microforaminotomy
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Kim Young-Gyu
Lee Jong-Sun
Park Moon-Sun
Ha Ho-Gyun
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Abstract
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Objective :We have previously reported excellent early clinical results of anterior cervical microforaminotomy (ACMF) for patients who have cervical radiculopathy from either disc herniation or foraminal stenosis. ACMF is being accepted as a minimal invasive functional spinal surgery, but their long-term outcome is unknown. The goal of this study is to evaluate the midterm clinical and radiological results of ACMF.
Methods : We had undertaken a questionnaire survey and retrospective analysis of 42 patient: with cervical radiculopathy who had undergone ACMF from 1998 to 2001. Clinical data from 33 patients(one-level operation in 20 patients, two-level in 13 patients) and radiological data from 21 patients were analysed.
Results : Thirty-three patients answered for the questionnaires. Mean follow-up was 48 months(ranged from 26 to 64 months). The surgical outcome was excellent in 18 patients(54.6%) and good in 11 patients(33.3%). One patient showed poor outcome, but there was no case of recurrence, reoperation or additive surgery. Twenty-four patient5(79%) satisfied with the results of their surgery. On the average, the loss of disc height was 1.02mm(18% of preoperative disc height), average increase of displacement was 0.83mm, decrease of sagittal plane angulation was 2.93. All the patients maintained stability during follow-up period.
Conclusion : In the midterm, ACMF appears to be safe and effective method for the treatment of cervical radiculopathy. To prevent disc height loss and retrolisthesis, skilled disc:-preserving technique of ACMF is required and modified technique preserving anterior part of uncovertebral joint may be advantageous.
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KEYWORD
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Anterior cervical microforaminotomy, Degenerative disc disease, Instability
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