Korean J Spine Search

CLOSE


Korean J Spine > Volume 7(3); 2010 > Article
19
Radiologic Adjacent Segment Degeneration and Clinical Outcome after Two Level Fusion (L3-4-5 and L4-5-S1) in Degenerative Lumbar Spinal Disease.
Seong Son, Do Young Kim, Sang Gu Lee, Woo Kyung Kim, Chan Woo Park, Deuk Soo Jun
1Department of Neurosurgery, Gachon University of Medicine & Science, Gil Hospital, Incheon, Korea. samddal@gilhospital.com
2School of Medicine, Gachon University of Medicine & Science, Incheon, Korea.
3Department of Orthopedics, Gachon University of Medicine & Science, Gil Hospital, Incheon, Korea.
Abstract
OBJECTIVE
We retrospectively analyzed correlation of the development of radiologic adjacent segment degeneration (ASD), clinical outcome, and the vertebral level of fusion in two-level posterior lumbar fusion cases. Furthermore, risk factors of ASD were investigated.
METHODS
From 2000 to 2007, a total of 50 patients were evaluated. Their mean age was 55.0 years and mean follow-up period was 52.7 months. The patients were divided into two groups according to the vertebral level of the fused segment. Group I included 35 patients with L3-4-5 fusion, while 15 patients with L4-5-S1 fusion were categorized into group II. The patients were also divided into two groups, according to the development of ASD. Odom's criteria was used to study clinical outcome, and Cobb's angle was used to evaluate radiologic outcome RESULTS: Of 50 patients, radiologic ASD was found in 24 (48.0%) patients. Group I showed 16 (45.7%) patients with ASD, while Group II showed 8 (53.3%) patients with ASD, and they did not show a significant difference in development of ASD and clinical outcome. Clinical outcome of patients with ASD and the ones without ASD did not show significant difference. Meanwhile, patients with ASD were older and showed decrease of the lordotic angle, as well as significant hypermobility in the cranial adjacent segment, during follow-up.
CONCLUSION
Different vertebral regions of fusion in two-level posterior lumbar fusion did not show significant difference in development of radiologic ASD and clinical outcome. In the development of ASD, decrease of the lordotic angle, hypermobility in the cranial adjacent segment and age were significant factors.
Keywords: Spinal fusion;Postoperative complication;Lumbar vertebrae;Sacrum


Editorial Office
Department of Neurosurgery, Yonsei University College of Medicine
50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
Tel: +82-2-2228-2172  E-mail: theneurospine@gmail.com
The Korean Spinal Neurosurgery Society
#407, Dong-A Villate 2nd Town, 350 Seocho-daero, Seocho-gu, Seoul 06631, Korea
Tel: +82-2-585-5455  Fax: +82-2-2-523-6812  E-mail: ksns1987@gmail.com
Business License No.: 209-82-62443

Copyright © The Korean Spinal Neurosurgery Society. All rights reserved.

Developed in M2community

Close layer
prev next