Skip to main content

Table 3 Ball head failures under cyclic asymmetric loading

From: Are asymmetric metal markings on the cone surface of ceramic femoral heads an indication of entrapped debris?

  F U/F L[kN] Weight Contaminant-pos. Cycles Failure/run-out Test-no.
Blood 8/0.8 7.7 mg 1 < 102 Head fracture 14
Bone 4/0.4 0.7 mg 1 3.28 106 Head fracture 5
8/0.8 2 mg 1 < 102 Head fracture 3
8/0.8 0.7 mg 1 < 102 Head fracture 4
8/0.8 0.7 mg 2 1.25 105 Head fracture 7
Fat 8/0.8 5.4 mg 1 < 103 Head fracture 15
8/0.8 1.0 mg 1 < 102 Head fracture 17