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KMID : 0388720090160010024
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Journal of Korean Society of Spine Surgery
2009 Volume.16 No. 1 p.24 ~ p.29
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Minimally Invasive Transforaminal Lumbar Interbody Fusion
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Chung Hung-Tae
Na Chae-Oh
Ha Sang-Hoon
Shin Dong-Ryul
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Abstract
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Study Design: A retrospective study
Objectives: To introduce the technique of minimally invasive transforaminal lumbar interbody fusion and examine its clinical and radiologic results.
Summary Of Literature Review: Transforaminal lumbar interbody fusion with a mini-incision using a tubular retractor was recently developed. The aim of this procedure is to reduce the approach-related morbidity and achieve better results in an effective and safe manner.
Materials and Methods:Thirty eight patients were followed up for more than 1 year. Their mean age was 57 years and the mean follow-up was 19 months. The diagnosis was spinal stenosis, spondylolisthesis and recurred herniated nucleus pulposus in 22, 14 and 2 patients, respectively. The Oswestry disability index, intervertebral disc space height, fusion rate and complications were evaluated.
Results: The Oswestry disability index improved from 30 points (range, 50~16 points) to 10 points (range, 2-24 points) at the last follow-up. Thirty-four patients (90%) showed excellent or good results. The intervertebral disc space height increased from 8.7 mm to 10.8 mm. Two cases showed nonunion but the clinical results were good. Complications included one case of infectious spondylitis requiring antibiotics, one case of cage dislodgement requiring additional surgery and one case of a pedicle screw malposition showing no clinical symptoms.
Conclusions: Minimally invasive transforaminal lumbar interbody fusion reduced the soft tissue injury and blood loss and shortened the recovery period compared to the traditional open techniques.
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KEYWORD
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Minimally invasive, Transforaminal lumbar interbody fusion (TLIF), Clinical result, Complication
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