Long term follow- up study of lumbar spondylolytic spondylolisthesis treated with Steffee system
- VernacularTitle:Steffee手术治疗崩裂性腰椎滑脱症的远期疗效
- Author:
Liang CHEN
;
Tiansi TANG
;
Huilin YANG
;
- Publication Type:Journal Article
- Keywords:
Lumbar vertebrae;
Spondylolisthesis;
Treatment outcome
- From:
Chinese Journal of Orthopaedics
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the long term outcome of spondylolytic spondylolisthesis treated with Steffee system and posterolateral fusion. Methods Thirty- four patients were followed up for an average of 77.2 months. The follow- up study include slipping percentage, slipping angle, heights of intervertebral space and foramen, fusion rate, screw broken rate and clinical outcomes. Results 1) Solid fusion was obtained in 88.2％ of patients. screw broken rate was 2.9％ . 2) Comparison of pre- and post- operative slip showed correction rate of 45.1％ . The heights of intervertebral space and foramen increased, slipping angle decreased. 3) During the period of follow- up, recurrence of deformity was found. 4) The subjective outcome was better than the objective outcome. Conclusion 1) Lumbar spondylolytic spondylolisthesis with radicular symptom need complete decompression and reduction as much as possible. 2) A positive slipping angle indicates significant shearing force and the need of an interbody fusion to restore the weight- bearing capacity. 3) Objective criteria is more suitable to evaluate surgical outcome.
