Biomechanical Comparison of Multilevel Lumbar Instrumented Fusions in Adult Spinal Deformity According to the Upper and Lower Fusion Levels: A Finite Element Analysis

Figure 2

Construction of six different surgical model types for comparative analysis of the fusion level: Type A1, L1-L5 fusion; Type A2, L1-S1 fusion; Type A3, L1-ilium fusion; Type B1, T10-L5 fusion; Type B2, T10-S1 fusion; Type B3, T10-ilium fusion.