Application of a custom hand-held endoscope auxiliary device in unilateral biportal endoscopic lumbar interbody fusion for lumbar degenerative diseases

Background To investigate the clinical effectiveness of a custom hand-held endoscopic auxiliary device in assisting unilateral biportal endoscopic lumbar interbody fusion (ULIF) during the treatment of lumbar degenerative diseases. A total of 31 patients with lumbar degenerative diseases who received ULIF treatment between June 2021 and February 2025 were selected for the study. The baseline characteristics, clinical outcomes, complications and radiological data were collected and analyzed. Results The average follow-up time of the 31 patients was 20.65 ± 11.80 months; the average operation time was 305.45 ± 85.39 min; the average intraoperative blood loss was 379.03 ± 213.22 mL; and the average postoperative hospital stay was 21.58 ± 8.68 days. The VAS scores for leg pain and low back pain, as well as the ODI at 1 week, 3 months postoperatively, and the last follow-up, were significantly lower than the preoperative scores ( P < 0.05). The X-ray/CT reexamination conducted 6 months postoperatively showed 15 cases (48.39%) of Bridwell Grade I fusion, 12 cases (38.71%) of Grade II fusion, and 4 cases (12.90%) of Grade III fusion. Based on the modified Macnab criteria at the 6-month postoperative mark, 28 cases (90.32%) were rated as “excellent” and 3 cases (9.68%) as “good”. Conclusion The ULIF procedure, assisted by a custom hand-held endoscope auxiliary device, offers a strategic solution for expanding surgical efficiency in primary hospitals. Its minimally invasive nature makes it an effective, viable option for improving patient care, especially suitable for beginners.