Degenerative spondylolisthesis is the forward slippage of one vertebra to another due to degenerative arthritic changes in the facet joint without isthmic defect. This do not respond to the routine conservative treatment. Regarding the surgical
procedures, it is now generally accepted that decompression with or without fusion. Authors reviewed 15 cases of the degenerative spondylolisthesis who were surgically managed with decompression and posterior fusion with CD (Contrel-Dubosset)
instrumentation at department of orthopedic surgery, Chungnam National University Hospital from July 1991 to October 1993.
@ES The results were follows :
@EN 1. The cases were 2 males and 13 females having age from 38 to 61 years (average 49.3). Follow up duration was average 16 months.
2. The vertebral slippage was occurred at L3-4 2 cases, L4-5 8 cases, L5-S1 5 cases.
3. Slippage percentage was average 18.5% and instability was found at 9 cases(60%)
4. In preoperative myelogragm with computed tomography, there were stenosis and nerve root compression. In MRI, 15 cases were appeared degenerative change of intervertebral disc.
5. Reducibility was 60% (9 cases).
6. The pationts were rated according to the criteria by Gill etc.. Follow up results were exellent in 4 cases, good in 8 cases and fair in 3 cases.
7. In postoperative 6 months, there was no instability on plain flexion and extention lateral view.
So we might conclude that surgical treatment with decompression and posterior fusion give good results to the degenerative spondylolishtesis.
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