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Table 4 Comparison of stress shielding between Groups C and S

From: Finite element analysis of cementless femoral stems based on mid- and long-term radiological evaluation

 

Group C

Group S

P value

Total number of hips

11

16

 

Progression of stress shielding (ratio)a

5 (45.5 %)

8 (50 %)

0.820

Stress shielding ≥2nd degree (ratio)b

7 (63.6 %)

12 (75.0 %)

0.533

  1. aStress shielding progressed from ~5 years to ~10 years postoperatively
  2. bSecond-degree or greater stress shielding at ~10 years postoperatively