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Radiological and Clinical Outcome after Simple Discectomy of Central Massive Lumbar Disc Herniation

  • Journal of Korean Society of Spine Surgery
  • Abbr : J Kor Spine Sur
  • 2010, 17(4), pp.169-176
  • Publisher : Korean Society Of Spine Surgery
  • Research Area : Medicine and Pharmacy > Orthopedic Surgery

고영도 1 이승준 1 김동준 1

1이화여자대학교

Accredited

ABSTRACT

Study Design: This is a retrospective case control study. Objectives: To analyze our results following simple discectomy of central massive disc herniation focusing on instability for the usefulness of intervertebral fusion. Summary of Literature Review: Lumbar instability is a complication of central massive disc herniation. However, there is limited evidence on the correlation between lumbar instability and loss of disc material. Materials and Methods: A total of 25 patients who had undergone discectomy for a single-level lumbar disc herniation were followed up for two years. The clinical group (group A) included 12 patients that had a compromised canal with greater than 50% of the herniated disc, while the central axis of the herniated disc was less than 20% deviated from the center axis of the spinal canal, as seen on MRI. The control group ( group B) had 13 patients that had a compromised canal with less than 50% of the herniated disc while their axis was more than 20% deviated from the center axis of the spinal canal. Clinical and radiologic instability, pain and functional disability were compared between the two groups. Results: No differences was found between the two groups in clinical instability, radiological instability, visual analogue scale (VAS),and the Oswestry disability index (ODI). Conclusions: Central massive disc herniation after discectomy did not show a significant difference in clinical or radiological instability from that of other herniation types.

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