Design Aspects of Endo-Prostheses for the Lower Limb

  • John P. Paul


In current clinical practice hip arthroplasty devices are being fitted to patients of progressively younger age groups (Charnley, 1971). Considerable research has been undertaken into the friction and wear characteristics required of the bearing surfaces of joint replacements (Duff Barclay, 1967; Scales, 1969). Attention has been directed principally to the design of the acetabular component of the hip joint and problems of attachment of this to the pelvic structure. There has been little research or analysis of the interface between the prosthesis and the femur, largely because clinically this region rarely gives rise to problems. The form of the femoral component of the prosthesis is generally a curved intramedullary stem of approximately rectangular cross-section secured either with bone chips or methyl methacrylate cement, a typical average design of stem being shown in figure 1.


Femoral Component Acetabular Component Load Action Knee Prosthesis Heel Strike 
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Copyright information

© Bioengineering Unit, University of Strathclyde 1973

Authors and Affiliations

  • John P. Paul
    • 1
  1. 1.University of StrathclydeGlasgowScotland

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