Study of single-level lumbar degenerative diseases treated by unilateral wiltse access with unilateral nail rod fixation assisted by a new automatic retraction device

• Published in: Journal of orthopaedic surgery and research 2023-01, Vol.18 (1), p.66-66, Article 66
• Main Authors: Sun, Yapeng, Zhang, Wei, Zhang, Fei, Li, Jiaqi, Guo, Lei
• Format: Article
• Language: English
• Subjects: Atrophy; Back pain; Back surgery; Backache; Classification; Comparative analysis; Creatine; Creatine kinase; Degenerative disc disease; Degenerative diseases; Diagnostic imaging; Fluoroscopy; Humans; Immobilization; Intervertebral Disc Degeneration - diagnostic imaging; Intervertebral Disc Degeneration - surgery; Intervertebral discs; Kidney-like fusion cage; Low back pain; Lumbar degenerative diseases; Lumbar Vertebrae - diagnostic imaging; Lumbar Vertebrae - surgery; Lumbosacral Region - surgery; Medical research; Medicine, Experimental; Minimally Invasive Surgical Procedures - methods; Orthopedics; Patients; Retrospective Studies; Spinal Fusion - methods; Statistical analysis; Surgical drains; TLIF; Treatment Outcome; Unilateral fixation; Wiltse approach; Wound drainage
• ISSN: 1749-799X; 1749-799X
• DOI: 10.1186/s13018-022-03474-x

To evaluate the clinical efficacy of unilateral wiltse transforaminal lumbar interbody fusion (TLIF) combined with unilateral nail bar system fixation for single-level lumbar degenerative diseases with the assistance of a new automatic retraction device in a retrospective comparative study. A total of 46 patients with single-level lumbar degenerative diseases from September 2019 to December 2021 were retrospectively analyzed. Bilateral nail bar fixation with bullet-type fusion cage (ctrl group, 24 patients) and unilateral nail bar fixation on the affected side with kidney-like fusion cage (study group, 22 patients) were performed in TLIF via wiltse intermuscular approach assisted by a new automatic retraction device. The differences in intraoperative blood loss, operative time, intraoperative fluoroscopy time, postoperative drainage, bed rest, VAS score, ODI score, JOA score, serological creatine kinase (CK), the proportion of multifidus atrophy, modified Pfirrmann classification and intervertebral space height of the upper intervertebral disc were compared between the two groups based on clinical and imaging data. Intraoperative bleeding, operative time, and postoperative drainage were significantly lower in study group than ctrl group, and there were no significant differences in bed rest time and intraoperative fluoroscopy time between them. In addition, there was no statistical difference in CK between the study group and the ctrl group at 24 and 48 h postoperatively. Moreover, no statistically significant difference was found in VAS score of low back pain, VAS score of lower limb pain, ODI index, modified Pfirrmann classification of the upper intervertebral disc and intervertebral space height of the upper intervertebral disc between two groups. The atrophy ratio of multifidus muscle was significantly lower in the study group. The new automatic retraction device assisted unilateral TLIF surgery with wiltse approach combined with unilateral nail bar fixation is a simple, effective and easy to master surgical method for single-level lumbar degenerative diseases.