Radiological and Clinical Outcome after Simple Discectomy of Central Massive Lumbar Disc Herniation.
10.4184/jkss.2010.17.4.169
- Author:
Young Do KOH
1
;
Seung Jun RHEE
;
Dong Jun KIM
Author Information
1. Department of Orthopedic, Surgery School of Medicine, Ewha Womans University, Seoul, Korea. oskdj@ewah.ac.kr
- Publication Type:Original Article
- Keywords:
Discectomy;
Central massive disc herniation;
Instability
- MeSH:
Axis, Cervical Vertebra;
Case-Control Studies;
Diskectomy;
Humans;
Intervertebral Disc Displacement;
Retrospective Studies;
Spinal Canal
- From:Journal of Korean Society of Spine Surgery
2010;17(4):169-176
- CountryRepublic of Korea
- Language:English
-
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.
