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Table 1 Outcome measures of the femoral head movements with respect to the shaft in the two study groups with fractured and osteotomized specimens after 1000, 5000 and 10,000 cycles, in terms of mean and standard deviation, together with p-values from the statistical comparisons between the groups and over cycles

From: Standardized artificially created stable pertrochanteric femur fractures present more homogenous results compared to osteotomies for orthopaedic implant testing

Group 1000 cycles 5000 cycles 10,000 cycles p-value
(difference between groups)
Varus deformation [°]
 Fractured 0.5 ± 0.2 2.4 ± 0.6 8.5 ± 2.7 p = 0.501
 Osteotomized 0.7 ± 0.5 3.0 ± 2.5 10.7 ± 8.3
 p-value over cycles p < 0.001  
Leg shortening [mm]
 Fractured 0.8 ± 0.3 2.5 ± 1.6 5.8 ± 4.5 p = 0.424
 Osteotomized 0.8 ± 0.5 2.6 ± 2.0 15.9 ± 12.4
 p-value over cycles p = 0.001  
Rotation around neck axis [°]
 Fractured 0.4 ± 0.4 1.5 ± 1.4 4.8 ± 3.1 p = 0.093
 Osteotomized 1.9 ± 2.4 5.4 ± 8.3 13.4 ± 15.2
 p-value over cycles p = 0.011