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Table 1 Percentage strain for each prosthesis compared to the control femur and strain comparison for each zone of interest, p-values

From: Comparative analysis of the biomechanical behavior of two different design metaphyseal-fitting short stems using digital image correlation

Key zone of interest Implanted Minima S femoral stem Implanted Trilock BPS femoral stem Minima S to Trilock BPS (p-value)
Percentage strain against controls (%) Mann–Whitney test against controls (p-value) Percentage strain against controls (%) Mann–Whitney test against controls (p-value)
Medial side
 M1 68.7 0.001 57.1 0.000 0.029
 M2 84.1 0.005 69.2 < 0.0001 < 0.0001
 M3 101.0 0.029 89.4 < 0.0001 < 0.0001
 M4 102.5 0.529a 97.8 0.139a < 0.0001
 M5 99.1 0.459a 98.2 0.752a 0.153a
 M6 98.3 0.13a 96.7 < 0.0001 0.000
 M7 106.1 0.001 101.6 0.556a 0.003
Lateral side
 L2 87.5 < 0.0001 79.2 < 0.0001 0.935a
 L3 89.1 < 0.0001 57.8 < 0.0001 < 0.0001
 L4 98.2 0.000 82.2 < 0.0001 < 0.0001
 L5 98.1 0.043 92.6 0.004 0.002
 L6 95.4 0.000 81.2 < 0.0001 < 0.0001
 L7 100.3 0.131a 87.7 < 0.0001 0.006
  1. aNot significant