Optimising implant pegs for primary fixation: a finite element approach

Thesis

Cementless orthopaedic implants are commonly held in place in the surrounding bone by an interference fit between fixation geometry and the bone. This fixation geometry often takes the form of a peg. The over-arching aim of this thesis was to use a finite element approach to improve the primary fixation of an orthopaedic peg which would be applied to a Unicompartmental Knee Replacement (UKR) tibial component. The achievement of this aim was broken into three objectives: To generate an optimis...

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Authors: Heath, D

• DOI: 10.5287/ora-14kbq7k25
• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: unicompartmental implants; finite element analysis; polyurethane foam properties; FEA; mechanical characterisation of polyurethane foam; orthopaedic implants; engineering approach to orthopaedic implants; knee motion simulation; knee implants
• Subjects: Biomechanical engineering; Musculoskeletal sciences; Mechanical engineering