Table 2 Summary of complications of included studies
Complications, N (%) | MIS-TLIF (N = 232) | OLIF (N = 240) |
|---|---|---|
Approach-related | ||
 Dural tear and root injury | 4 (1.7 %) | 0 (0 %) |
 Ileus | 0 (0 %) | 1 (0.4 %) |
 Leg pain | 2 (0.9 %) | 3 (1.3 %) |
 Thigh numbness | 3 (0.9 %) | 3 (1.3 %) |
 Hip flexion weakness | 2 (1.3 %) | 4 (1.7 %) |
 Segmental artery injury | 0 (0 %) | 1 (0.4 %) |
 Sympathetic chain injury | 0 (0 %) | 3 (1.3 %) |
Approach-unrelated | ||
 Adjacent segment disease | 9 (3.9 %) | 12 (5 %) |
 Edema | 0 (0 %) | 3 (1.3 %) |
 Deep venous thrombosis | 1 (0.4 %) | 0 (0 %) |
 Infection | 1 (0.4 %) | 0 (0 %) |
 Late multiple sclerosis | 0 (0 %) | 1 (0.4 %) |
 Pseudarthrosis | 6 (2.6 %) | 4 (1.7 %) |
 Pulmonary thromboembolism | 1 (0.4 %) | 0 (0 %) |
 Screw and cage incidence | 2 (0.9 %) | 4 (1.7 %) |
 Thrombocytopenia | 1 (0.4 %) | 0 (0 %) |
Total | 32 (13.8 %) | 39 (16.3 %) |