腰部椎間板ヘルニアに対する再手術例の臨床的検討

抄録

33 patients who had undergone lumbar disc surgery previously and had required two or more operative procedure have been evaluated.
The indications for reoperation were as follows;
1. Recurrent disc protrusion 9
a) same level as previous surgery 1
b) different level from previous surgery 1
2. Segmental Instability 17
3. Post-operative lumbar canal stenosis
with arachnoiditis 2
without arachnoiditis 2
4. Nerve root scarring 2
Twenty five (recurrent disc protrusion: 8, segmental instability: 17) of the 33 patients underwent anterior discotomy and interbody fusion.
One with nerve root scarring and four with post-operative lumbar canal stenosis underwent laminectomy and facetectomy.
One with nerve root scarring, one with post-operative stenosis and segmental instability at the same level, underwent procedure both anterior and posterior approach respectively. Reoperative results of the 30 patients which had lumbar disc surgery 6 or more months previously were Exellent 6 (20%), Good 20 (60%) and Fair 4 (13%).