Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
권호 표지

The Analysis on Surgical Result and Prognostic Factors of Thoracic Spinal Stenosis

흉추강 협착증의 수술적 치료 결과와 예후인자에 관한 분석

  • Chang, Ung Kyu (Department of Neurosurgery, School of Medicine, Seoul National University) ;
  • Chung, Sang Kee (Department of Neurosurgery, School of Medicine, Seoul National University) ;
  • Kim, Dong Yoon (Department of Neurosurgery, School of Medicine, Seoul National University) ;
  • Chung, Chun Kee (Department of Neurosurgery, School of Medicine, Seoul National University) ;
  • Kim, Hyun Jib (Department of Neurosurgery, School of Medicine, Seoul National University)
  • 장웅규 (서울대학교 의과대학 신경외과학교실) ;
  • 정상기 (서울대학교 의과대학 신경외과학교실) ;
  • 김동윤 (서울대학교 의과대학 신경외과학교실) ;
  • 정천기 (서울대학교 의과대학 신경외과학교실) ;
  • 김현집 (서울대학교 의과대학 신경외과학교실)
  • Received : 2001.03.07
  • Accepted : 2001.06.05
  • Published : 2001.06.28
Download PDF
⟨ Previous Next ⟩

Abstract

Objective : To describe the underlying causes, surgical results, and prognostic factors in thoracic stenosis causing myelopathy, retrospective analysis for 28 cases of thoracic stenosis with surgery was performed Materials & Method : Twenty-eight patients(male, 15 ; female, 13) who underwent decompressive surgery for thoracic stenosis between 1987 and 1997 were analyzed. The mean age was 49 and the mean follow-up was 30.6 months. Statistical analysis with $SPSS^{(R)}$ was performed. Chi-square test was used for the analysis of relationship between subjects and multivariate analysis with general linear model was used to find prognostic factors. Result : Degenerative spondylosis was the most common cause, and three cases were associated with systemic diseases. Decompressive laminectomy was done in 23 cases, anterior decompression in four cases, and combined decompression in one case. Ossification of ligamentum flavum was found in 18 cases, facet hypertrophy in 13, ossification of posterior longitudinal ligament in six, and ventral spur in four. Postoperatively, 16 patients improved functionally and 4 patients worsened. The group of which initial symptom duration was less than two years showed better result(p=0.003). The group with sufficient decompression and no additional proximal stenosis had better outcome(p=0.002, p=0.001). Conclusion : Chronic myelopathy caused by thoracic stenosis can be reversible with appropriate decompression.

Keywords