Research Article
Impact of Femoral Neck Cortical Bone Defect Induced by Core Decompression on Postoperative Stability: A Finite Element Analysis
Table 4
The maximum equivalent stress of different models and increased/decreased percentage comparing the standard operation under normal walking.
| | Models | The area of femoral neck cortical bone defect (MPa) | The entry area of drilling location (MPa) |
| | Normal walking | | | | Standard operation | 51.18 | 29.55 | | Femoral neck (anterior) | 59.97 (17.17%) | 55.44 (87.61%) | | Femoral neck (posterior) | 71.15 (39.02%) | 19.57 (-33.77%) | | Femoral neck (superior) | 80.60 (57.48%) | 24.44 (-17.29%) | | Femoral neck (inferior) | 90.29 (76.42%) | 35.06 (18.65%) | | Walking downstairs | | | | Standard operation | 59.75 (16.74%) | 32.70 (10.66%) | | Femoral neck (anterior) | 69.99 (36.75%) | 64.62 (118.68%) | | Femoral neck (posterior) | 85.89 (67.82%) | 20.28 (-31.37%) | | Femoral neck (superior) | 93.82 (83.31%) | 27.00 (-8.63%) | | Femoral neck (inferior) | 104.23 (103.65%) | 38.54 (30.42%) |
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