Transforaminal Epidural Steroid Injection for Lumbosacral Radiculopathy: Preganglionic versus Conventional Approach

  • Lee, Joon-Woo (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Kim, Sung-Hyun (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Choi, Ja-Young (Department of Radiology, Seoul National University College of Medicine) ;
  • Yeom, Jin-Sup (Department of Orthopaedic Surgery, Seoul National University Bundang Hospital) ;
  • Kim, Ki-Jeong (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Chung, Sang-Ki (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Kim, Hyun-Jib (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Kim, Choong-Hyo (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Kwack, Kyu-Sung (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Kwon, Jong-Won (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Moon, Sung-Gyu (Department of Radiology, Seoul National University College of Medicine) ;
  • Jun, Woo-Sun (Department of Radiology, Seoul National University College of Medicine) ;
  • Kang, Heung-Sik (Department of Radiology, Seoul National University Bundang Hospital)
  • 발행 : 2006.06.30

초록

Objective: The present study was undertaken to evaluate the effectiveness of transforaminal epidural steroid injection (TFESI) with using a preganglionic approach for treating lumbar radiculopathy when the nerve root compression was located at the level of the supra-adjacent intervertebral disc. Materials and Methods: The medical records of the patients who received conventional TFESI at our department from June 2003 to May 2004 were retrospectively reviewed. TFESI was performed in a total of 13 cases at the level of the exiting nerve root, in which the nerve root compression was at the level of the supra-adjacent intervertebral disc (the conventional TFESI group). Since June 2004, we have performed TFESI with using a preganglionic approach at the level of the supra-adjacent intervertebral disc (for example, at the neural foramen of L4-5 for the L5 nerve root) if the nerve root compression was at the level of the supra-adjacent intervertebral disc. Using the inclusion criteria described above, 20 of these patients were also consecutively enrolled in our study (the preganglionic TFESI group). The treatment outcome was assessed using a 5-point patient satisfaction scale and by using a VAS (visual assessment scale). A successful outcome required a patient satisfaction scale score of 3 (very good) or 4 (excellent), and a reduction on the VAS score of > 50% two weeks after performing TFESI. Logistic regression analysis was also performed. Results: Of the 13 patients in the conventional TFESI group, nine showed satisfactory improvement two weeks after TFESI (69.2%). However, in the preganglionic TFESI group, 18 of the 20 patients (90%) showed satisfactory improvement. The difference between the two approaches in terms of TFESI effectiveness was of borderline significance (p=0.056; odds ratio: 10.483). Conclusion: We conclude that preganglionic TFESI has the better therapeutic effect on radiculopathy caused by nerve root compression at the level of the supra-adjacent disc than does conventional TFESI, and the diffence between the two treatments had borderline statistical significance.

키워드

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