Results The average age of patients was 62.48 years. The mean follow-up period was 12.78 months. The foramen areas on bilateral sides and the cross-sectional area of the dura mater increased significantly postoperatively (P <0.05). Structural preservation of the multifidus muscle was observed in 20 of 54 levels (37%) on ipsilateral sides and in 48 of 54 levels (89%) on contralateral sides. No major complications were observed, and the incidences of minor complications and incidental durotomy were 28% and 4%, respectively. Improvements in average visual analog scale pain and 36-item short form health survey 6 (preoperative to 1 year postoperatively) scores were from 5.9 to 1.8 (P <0.05) and from 51.3 to 71.3 (P <0.01), respectively. The radiologic criteria of bony fusion were met by 40 patients (83%).
ASJC Scopus subject areas
- Clinical Neurology