PubMed · 2009 · 74 citations · 0 references
MedicineOrthopaedic SurgeryOrthopedic SurgeryBiomaterialsOrthopaedic BiomaterialsOrthopedic BiomaterialsHip BiomechanicsImplant BiomechanicsImplant DesignImplant MaterialsImplantable Biomedical DevicesSurface Modification Of ImplantsFat CoatingImplant - Tissue InterfaceImplant Wear DebrisMorse TheoryTapered Implant Design
Biological debris between modular components using Morse tapers in hip arthroplasty can lead to weakening of the implant construct. We conducted a study to determine the effect of blood and fat within the taper interface. Tapers were divided into groups 1 (clean), 2 (surface covered with blood and fat), and 3 (blood and fat wiped off). Each taper was impacted and disassembled 5 times. There was a difference in mean disassembly force between pulls within group 2. Thus, blood and fat contamination can have a significant effect on the potential for disassembly.