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Updated: Jun 28, 2026

Cone Beam Intraoperative Computed Tomography-based Image Guidance for Minimally Invasive Transforaminal Interbody Fusion
Published on: August 6, 2019
Learning curve and complication analysis of oblique lateral interbody fusion in cases with single-segment lumbar
Guanyin Jiang1,2, Qiufu Wang1,2, Miao Lei1,2
1Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 YouYi Road, Yuan Jia Gang, Yu Zhong District, Chongqing, 400016, Chongqing, China.
Objective:
Oblique lateral interbody fusion (OLIF) is becoming widely used in patients with single-segment spinal tuberculosis (STB). The learning curve and complications associated with OLIF for the treatment of STB are still unknown. This study aims to figure out the learning curve and associated complications experience of OLIF for the treatment of STB.
Methods:
Between September 2018 and August 2023, 61 STB patients underwent OLIF plus percutaneous pedicle screw fixation (PPSF) were consecutively included in this research. Cumulative sum analysis (CUSUM) was applied to establish the learning curve of OLIF and determine the cut-off case number. All cases were divided into learning and experienced groups based on the cut-off case number. Clinical characteristics and relating surgical complications were compared and analyzed between the two groups.
Results:
The best-fitting curve was quadratic. The fitting equation was CUSUM (min) = 95.83 + 34.16x - 0.611 x 2 (x means operation case). The cut-off operation case number was 27 cases. The presence of significant differences particularly in the duration of operation, operative blood loss, overall incidence, and severity of postoperative complications was noteworthy between the two groups.
Conclusion:
A total of 27 cases is the minimum number to master OLIF combined with PPSF for the treatment of patients with single-segment STB. When surgeons master this operation, the operative time, operative blood loss, overall incidence, and severity of postoperative complications will improve.
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