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Table 5 Comparison of stress shielding between cases of the presence and absence of spot welds

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

 

Presence of spot welds

Absence of spot welds

P value

Total number of hips

21

6

 

Progression of stress shielding (ratio)a

12 (57.1 %)

1 (16.7 %)

0.086

Stress shielding ≥2nd degree (ratio)b

18 (85.7 %)

1 (16.7 %)

0.001

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

ISSN: 1471-2474

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