Research Article
The Biomechanical Study of Extraforaminal Lumbar Interbody Fusion: A Three-Dimensional Finite-Element Analysis
Table 2
The L4-L5 range of motion (ROM) in different groups under six operating conditions.
| | ROM () | AF (°) | PE (°) | LF (°) | RF (°) | LR (°) | RR (°) |
| | Control | 2.16 | 1.70 | 1.40 | 1.84 | 0.90 | 0.96 | | ELIF + UPS | 0.71 | 0.41 | 0.38 | 0.11 | 0.26 | 0.28 | | TLIF + UPS | 0.88 | 0.48 | 0.87 | 0.12 | 0.28 | 0.60 | | TLIF + BPS | 0.63 | 0.08 | 0.22 | 0.06 | 0.10 | 0.14 | | ELIF + UPS + TLFS | 0.64 | 0.10 | 0.24 | 0.10 | 0.17 | 0.16 | | Percentage decrease from control to ELIF + UPS | 67.13% | 75.88% | 72.86% | 94.02% | 68.89% | 70.83% | | Percentage decrease from control to TLIF + UPS | 59.26% | 71.76% | 37.86% | 93.48% | 52.45% | 37.50% | | Percentage decrease from TLIF + UPS to ELIF + UPS | 19.32% | 14.58% | 56.32% | 8.33% | 7.14% | 53.33% | | Percentage decrease from ELIF + UPS to TLIF + BPS | 11.27% | 80.49% | 42.11% | 45.45% | 61.54% | 50.00% | | Percentage decrease from ELIF + UPS to ELIF + UPS + TLFS | 9.86% | 75.61% | 36.84% | 9.09% | 34.62% | 42.86% | | Percentage decrease from ELIF + UPS + TLFS to TLIF + BPS | 1.56% | 20.00% | 8.33% | 40.00% | 41.18% | 12.50% |
|
|
ELIF: extraforaminal lumbar interbody fusion; UPS: unilateral pedicle screw; TLIF: transforaminal lumbar interbody fusion; BPS: bilateral pedicle screw; TLFS: translaminar facet screw; AF: anterior flexion; PE: posterior extension; LF: lateral flexion; RF: right flexion; LR: left rotation; RR: right rotation.
|
