Journal of Korean Society of Spine Surgery (대한척추외과학회지)

Korean Society of Spine Surgery (대한척추외과학회)
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Factors Associated with Conversion from Conservative to Surgical Treatment in Single-Level Lumbar Spinal Stenosis Patients

보존적 치료 중인 단분절 요추관 협착증 환자에서 수술적 치료로 전환과 관련된 연관 인자

  • Ahn, Young-Joon (Department of Orthopedic Surgery, National Police Hospital) ;
  • Im, Se-Hyuk (Department of Orthopedic Surgery, National Police Hospital) ;
  • Park, Byung-Kyu (Department of Orthopedic Surgery, National Police Hospital)
  • 안영준 (국립경찰병원 정형외과) ;
  • 임세혁 (국립경찰병원 정형외과) ;
  • 박병규 (국립경찰병원 정형외과)
  • Received : 2018.10.19
  • Accepted : 2018.12.04
  • Published : 2018.12.30
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Abstract

Study Design: Retrospective study of prospectively-collected data. Objectives: To determine the factors associated with conversion from conservative to surgical treatment in single-level lumbar spinal stenosis patients. Summary of Literature Review: Various reports have presented clinical outcomes after the surgical and nonsurgical treatment of spinal stenosis. However, few reports have investigated factors predicting conversion to surgery during the course of conservative treatment. Materials and Methods: We analyzed 40 patients who visited our hospital from May 2010 to May 2015 and were traceable for at least 3 years after being advised to undergo surgery following 3 months of conservative treatment. Of these patients, 20 underwent surgery and 20 did not. We then investigated the factors associated with conversion to surgical treatment. Clinical assessments were conducted using a questionnaire, and the overall area of the spinal canal and the muscle area within the spinal canal were measured using magnetic resonance imaging. Results: The average area of the spinal canal was $81.40{\pm}53.61mm^2$ in the surgical group, compared to $127.75{\pm}82.55mm^2$ in the nonsurgical group (p=0.042). The muscle area in the spinal canal was $5.17{\pm}1.30cm^2$ in the surgical group, whereas it was $6.40{\pm}1.56cm^2$ in the nonsurgical group (p=0.010). The patients in the surgical group were more likely to have experienced repetitive strain and to have frequently visited health clubs (p=0.047, p=0.037, respectively). However, regular stretching was more common in the nonsurgical group (p=0.028). Conclusions: The factors associated with conversion to surgical treatment were a narrow spinal canal, a small muscle area within the spinal canal, visiting health clubs, repetitive sprain, and not stretching. A small muscle area within the spinal canal can be considered as a key factor related to surgical conversion.

연구 계획: 전향적으로 수집된 자료의 후향적 연구. 목적: 보존적 치료 중인 단분절 요추관 협착증 환자에서 수술적 치료로 전환과 관련된 연관 인자에 대한 분석 결과를 보고하고자 하였다. 선행 문헌의 요약: 지금까지 척추관 협착증 환자의 수술 및 비수술적 치료 후 임상 결과와 예후에 대한 다양한 보고가 있어 왔다. 그러나 보존적 치료 중 수술적 치료로의 전환을 예측할 수 있는 요인에 대한 보고는 드물다. 대상 및 방법: 2010년 5월부터 2015년 5월까지 본원을 방문한 단분절 요추관 협착증 환자 중 3개월 간의 보존적 치료 후 수술을 권유 받고 최소 3년 이상 추적이 가능하였던 환자 40예를 대상으로, 수술을 받은 20예와 보존적 치료를 통해 수술을 받지 않은 20예를 분석해 수술 전환과 관련된 연관인자들을 조사하였다. 임상적 평가는 설문지를 통해 시행하였고, 영상 검사로 수술 권유 전 마지막으로 촬영된 자기 공명 영상에서 척추관 면적과 요추부 근육량을 측정하였다. 결과: 자기 공명 영상을 사용하여 측정한 환자들의 척추관 면적의 평균과 표준편차를 이용하여 2그룹을 비교한 결과 수술군은 $81.40({\pm}53.61)mm^2$, 비수술군은 $127.75({\pm}82.55)mm^2$로 수술군에서 유의하게 좁았다(p=0.042). 요추부 근육량은 수술군은 $5.17({\pm}1.30)cm^2$, 비수술군은 $6.40({\pm}1.56)cm^2$로 수술군에서 유의하게 적었다(p=0.010). 설문지 항목 중 외상에 의한 반복적인 요추부 염좌와 헬스는 수술군에서 유의하게 많았다(p=0.047, p=0.037). 그러나, 요추부 스트레칭을 지속적으로 시행한 환자는 비수술군에서 더 많았다(p=0.028). 결론: 보존적 치료 중 수술적 치료 전환 과 관련된 연관 인자들로는 척추관 면적이 좁은 경우, 요추부 근육량이 적은 경우, 헬스를 하는 경우, 반복적인 요추부 외상이 있는 경우와 요추부 스트레칭을 안하는 경우가 있었다. 이 중 적은 요추부 근육량은 수술적 치료 전환과 관련된 중요 인자로 고려해 볼 수 있겠다.

Keywords

References

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