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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_4 | Pages 36 - 36
1 Jan 2013
Ohwada T Yamashita T Miwa T Sakaura H
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Introduction

Recently various type of spinal instrumentation was applied, and they are essential in modern spinal fusion surgery. Whereas several authors reported increased possibility of complication and degeneration on adjacent segment. We tried PLIF without instrumentation with box type intervertebral cages.

Method

Forty-one cases of degenerative lumbar diseases were treated by PLIF with carbon cages without spinal instrumentation. There were 17 males and 24 females, and age averaged 71.4 years. Thirty-two cases were degenerative spondylolisthesis, five were spinal stenosis, and four were disc herniation. Single PLIF was performed on forty cases, and double segment in one, with additional decompression on other segment in twenty. Bilateral facet joint were preserved to avoid lateral instability. Two pieces of cage were inserted with local bone graft. Post-op. follow-up period were 12 to 24 months, 15 months on average.