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The Relationship between Neural Foraminal Stenosis and Imaging Features of Lumbar Spine MRI in Patients Older Than 60 Years with Lumbar Radiculopathy

요추신경근병증이 있는 60세 이상의 환자에서 신경공 협착과 자기공명영상 평가를 통한 인자와의 상관관계

  • Kyeyoung Lee (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Hee Seok Jeong (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Chankue Park (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Maeran Kim (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Hwaseong Ryu (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Jieun Roh (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Jeong A Yeom (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Jin Hyeok Kim (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Tae Un Kim (Department of Radiology, Pusan National University Yangsan Hospital) ;
  • Chang Ho Jeon (Department of Radiology, Pusan National University Hospital)
  • 이계영 (양산부산대학교병원 영상의학과) ;
  • 정희석 (양산부산대학교병원 영상의학과) ;
  • 박찬규 (양산부산대학교병원 영상의학과) ;
  • 김매란 (양산부산대학교병원 영상의학과) ;
  • 류화성 (양산부산대학교병원 영상의학과) ;
  • 노지은 (양산부산대학교병원 영상의학과) ;
  • 염정아 (양산부산대학교병원 영상의학과) ;
  • 김진혁 (양산부산대학교병원 영상의학과) ;
  • 김태언 (양산부산대학교병원 영상의학과) ;
  • 전창호 (부산대학교병원 영상의학과)
  • Received : 2020.05.15
  • Accepted : 2020.10.06
  • Published : 2021.07.01

Abstract

Purpose To investigate the MRI features associated with neural foraminal stenosis (NFS) in patients older than 60 years with lumbar (L) radiculopathy. Materials and Methods This study included 133 retrospectively selected patients older than 60 years with lumbar radiculopathy who had undergone a lumbar spine MRI (from January 2018 to April 2018). For L4/L5 and L5/sacral (S)1 levels, NFS was reviewed blindly by two radiologists. Spondylolisthesis, retrolisthesis, disc height loss, disc bulging/herniation/central canal stenosis, ligamentum flavum thickening, and facet hypertrophy were evaluated separately for the NFS and non-NFS groups, and they were compared using univariate and multivariate analyses. Results The univariate analysis revealed that disc height loss (p = 0.006) was associated with NFS for L4/L5. For L5/S1, both spondylolisthesis (p = 0.005) and facet hypertrophy (p = 0.006) were associated with NFS. The multivariate logistic analysis revealed that disc height loss was associated with NFS for L4/L5 [odds ratio (OR) = 4.272; 95% confidence interval (CI) 1.736-10.514]. For L5/S1, spondylolisthesis (OR = 3.696; 95% CI 1.297-10.530) and facet hypertrophy (OR = 6.468; 95% CI 1.283-32.617) were associated with NFS. Conclusion Disc height loss was associated with NFS for L4/L5 and spondylolisthesis and facet hypertrophy were associated with NFS for L5/S1.

목적 요추신경근병증이 있는 60세 이상의 환자의 신경공 협착에 영향을 줄 수 있는 인자를 자기공명영상 평가를 통해 알아보고자 하였다. 대상과 방법 요추신경근병증이 있는 60세 이상의 환자 133명이 본원에서 시행 받은 2018년 1월부터 4월까지의 요추 자기공명영상을 대상으로 하였다. 제4/5 요추간과 제5 요추/제1 천추간에서 신경공 협착이 있는 군과 없는 군으로 나눈 후 척추전방전위증, 척추후방전위증, 추간판 간격 감소, 추간판탈출증, 중심성 척추관 협착, 황색인대비후, 척추후관절 비후 여부를 2명의 판독자가 분석한 후 단변량 및 다변량 로지스틱 회귀분석을 시행하였다. 결과 단변량 분석에서 제4/5 요추간에 대해 추간판 간격 감소(p = 0.006), 제5 요추/제1 천추간에 대해서는 척추전방전위증(p = 0.005)과 척추후관절 비후(p = 0.006)가 신경공 협착과 유의한 연관성을 보였다. 다변량 분석에서는 제4/5 요추간에 대해 추간판 간격 감소[odds ratio(이하 OR) = 4.272; 95% confidence interval (이하 CI) 1.736~10.514]가 신경공 협착과 관련된 인자였다. 제5 요추/제1 천추간에서는 척추전방전위증(OR = 3.696; 95% CI 1.297~10.530)과 척추후관절 비후(OR = 6.468; 95% CI 1.238~32.617)가 이와 관련된 인자였다. 결론 제4/5 요추간에서는 추간판 간격 감소가, 제5 요추/제1 천추간에서는 척추전방전위증과 척추후관절 비후가 신경공 협착과 관련된 인자였다.

Keywords

Acknowledgement

This work was supported by clinical research grant from Pusan National University Yangsan Hospital in 2020.

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