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KMID : 1141120160020020048
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The Nerve
2016 Volume.2 No. 2 p.48 ~ p.53
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Clinical Outcomes of Minimally Invasive Posterior Cervical Decompression Using a Tubular Retractor for the Treatment of Cervical Spondylotic Myelopathy: Single-center Experience with a Minimum 12-month Follow-up
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Chung Ho-Jung
Hur Jung-Woo
Ryu Kyeong-Sik
Kim Jin-Sung
Seong Ji-Hoon
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Abstract
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Objective: Recently, with the use of the tubular retractor system, minimally invasive posterior cervical decompression has become possible. Improvement of surgical technique has made reduction in tissue damage during operation possible, which allows less postoperative pain, and shorter hospital stays. The objective of this study is to evaluate the safety and efficacy of a minimally invasive surgical technique using a tubular retractor system. This study is a series of consecutive mid-term follow-up reports in controlled clinical trials held at the institute of the authors using a minimally invasive surgical technique.
Methods: Twenty-one patients underwent minimally invasive posterior cervical decompression. Medical records including demographic data, diagnoses, complications, and degrees of symptom relief, were recorded and evaluated. Clinical outcomes were assessed by the neurological status and visual analog scale (VAS) score for neck and arm pain.
Results: Muscle weakness improved in all patients, of whom 80.9%(17/21) showed a complete resolution of sensory deficits and 19.1%(4/21) showed partial improvement. An analysis of the mean VAS and Neck Disability Index scores revealed significant improvement at the final follow-up. The mean Japanese Orthopedic Association scoring system for cervical myelopathy (C-JOA score) scores also improved from a preoperative value of 11.2±2.6 to 16.2±3.1 for the last follow-up. The recovery rate calculated using the Hirabayashi method was shown to have an average of 53.2±22.0%.
Conclusion: Our short-term experiences with relatively good clinical outcomes imply that this minimally invasive technique is a valid alternative option for the treatment of cervical spondylotic myelopathy.
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KEYWORD
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Spondylosis, Minimally invasive surgical procedures, Cervical vertebrae
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