Fracture of a Polyethylene Tibial Post in a Scorpio Posterior-Stabilized Knee Prosthesis

We report the case of a polyethylene tibial post fracture in a 72-year-old woman 14 months after a Scorpio posterior-stabilized (PS) total knee arthroplasty. The polyethylene wear was found around the fracture site of the post, especially over the anterior aspect of the post base. The failure mechan...

Descripción completa

Detalles Bibliográficos
Autores principales: Lim, Hong Chul, Bae, Ji Hoon, Hwang, Jin Ho, Kim, Seung Joo, Yoon, Ji Yeol
Formato: Texto
Lenguaje:English
Publicado: The Korean Orthopaedic Association 2009
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2766758/
https://www.ncbi.nlm.nih.gov/pubmed/19885065
http://dx.doi.org/10.4055/cios.2009.1.2.118
Descripción
Sumario:We report the case of a polyethylene tibial post fracture in a 72-year-old woman 14 months after a Scorpio posterior-stabilized (PS) total knee arthroplasty. The polyethylene wear was found around the fracture site of the post, especially over the anterior aspect of the post base. The failure mechanism of the post fracture in the present case was anterior impingement with excessive wear over the base of the anterior aspect of the tibial post, which became a stress-riser of post and cam articulation. This is the first report of a polyethylene tibial post fracture of a Scorpio PS prosthesis.

Ejemplares similares