Impact of Femoral Neck Cortical Bone Defect Induced by Core Decompression on Postoperative Stability: A Finite Element Analysis

Figure 9

Stress distribution at the entry area: (a) femoral neck (anterior) defect; (b) femoral neck (posterior) defect; (c) femoral neck (superior) defect; (d) femoral neck (inferior) defect under normal walking and walking downstairs (e–h); (i) maximum stress at the entry area under normal walking and walking downstairs.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)