Efficacy of anterior controllable ante-displacement and fusion surgery for cervical spinal stenosis due to ossification of the posterior longitudinal ligament
Objective:To investigate the efficacy of anterior controllable ante-displacement and fusion surgery(ACAF)for cervical spinal stenosis caused by ossification of the posterior longitudinal ligament(OPLL).Methods:The clinical data of 17 patients with cervical spinal stenosis caused by OPLL who underwent ACAF from July 2019 to September 2020 were retrospectively analyzed.There were 12 males and 5 females,aged 46-79 years,with an average age of(60.0±12.2)years.Preoperative and final follow-up measurements included C2-7 Cobb angle on lateral cervical spine X-rays,measurements of the effective sagittal diameter and effective spinal canal area at the surgical segments on axial CT images at the level of the transverse foramen,and assessments of neurological function and pain using the Japanese Orthopedic Association(JOA)score and visual analogue scale(VAS),respectively.Results:Among the 17 patients,anterior displacement of 41 vertebral bodies was observed.Vertebral artery injury occurred in 1 patient,and posterior laminectomy was performed again in another patient due to insufficient decompression of ACAF.No neural or dural injuries were observed intraoperatively in the remaining 15 patients.All 17 patients achieved primary wound healing without infection.The mean follow-up duration was(21.4±4.8)months.At the final follow-up,the Cobb angle increased from 8.9°±8.0° preoperatively to 19.7°±3.8°,the effective sagittal diameter of spinal canal increased from(6.7±2.0)mm to(11.5±2.7)mm,and the effective cross-sectional area of spinal canal increased from(13.2±5.1)mm2 to(22.5±5.3)mm2.The improvement rate of cervical JOA was 66.7％(37.5％,100％),and the improvement rate of pain VAS score was 80.0％(50.0％,100％).Decompression of the spinal canal was adequate and internal fixation was stable without screw loosening or displacement.Conclusions:ACAF surgery can effectively treat OPLL-associated cervical spinal stenosis,achieving satisfactory clinical outcomes.
Anterior Controllable Ante-displacement and Fusion SurgeryCervical Canal StenosisOssification of the Posterior Longitudinal Ligament
NETL
NSTL
万方数据
