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Mechanical failure of distal femur mega prosthesis due to polyaryl-ether-ether-ketone (PEEK) hinge component.

Omri MeroseShai FactorYair GortzakSolomon DadiaOrtal SegalAya VituriArie BussibaAmir Sternheim
Published in: Archives of orthopaedic and trauma surgery (2024)
Our findings suggest that PEEK hinge failure in a distal femur reconstruction system is correlated with patient weight and male gender. Retrieval analysis revealed that failure was related to fretting and microscopic fractures due to cyclic loading, leading to instability and mechanical failure of the PEEK component in full extension. Further assessment of PEEK-based weight bearing articulating components against metal is warranted.
Keyphrases
  • body mass index
  • physical activity
  • weight loss
  • minimally invasive
  • bone mineral density
  • weight gain
  • mental health
  • single cell
  • body weight
  • finite element
  • data analysis