Clinical analysis of surgical treatment of lumbar disc herniation by microscope combined with fixed channel

Abstract

Objective To analyze the clinical effects of surgery treatment for herniated lumbar disc assisted by microscope combined with fixed channel. Methods The clinical data of 43 patients with herniated lumbar disc who received surgery assisted by microscope combined with fixed channel in the First Affiliated Hospital of Dalian Medical University from March 2015 to March 2016 were retrospectively reviewed, including 25 males and 18 females with an age of 28-77(46.49±6.60) years. Among them, the lesion spine level was located at L2/3 segment in 3 patients, L4/5 segment in 24 patients and L5/S1 segment in 16 patients. Due to the effect of conservative treatment was not satisfactory, the microscope together with a fixed channel was applied to assist in surgery. The surgical outcomes were evaluated by leg visual analogue score(VAS) and Oswestry disability index(ODI) before and 3 months after operation and last follow-up. At the last follow-up, the modified Macnab criteria were used to evaluate the excellent rate and determine the treatment effect. Results All the 43 patients were followed up, and the follow-up time was 10-18 (14.49±1.98) months. No complications such as cerebrospinal fluid leakage, infection and nerve root injury occurred. According to modified Macnab criteria, the efficacy was excellent in 16 patients, good in 23 patients, general in 4 patients, with the rate of being excellent and good of 90.7% (39/43). The difference of VAS scores and ODI scores before operation and 3 months after operation, last follow-up were statistically significant (all P values 0.05). Conclusions It is an effective and feasible procedure for surgery assisted by microscope combined with fixed channel in the treatment of lumbar disc herniation, which has satisfactory efficacy. Key words: Intervertebral disc displacement; Lumbar vertebrae; Microsurgery; Channel