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Rotura de cotilo en artroplastia total de cadera

Authors: Canillas del Rey, F.M.; Corbatón Blasco, V.; Muñoz Campos, J.; Sanjurjo Navarro, J.;

Rotura de cotilo en artroplastia total de cadera

Abstract

Describimos dos casos de rotura de cotilos de expansión de prótesis de cadera tipo CLS de origen no traumático. Ambos casos sucedieron a los seis años de cirugía y no se apreció desgaste o rotura del polietileno en ninguno de ellos. En nuestra opinión la hipótesis más probable es que la falta de contacto entre la zona polar del cotilo y el fondo del acetábulo produzca una zona de inestabilidad en los segmentos de la prótesis y rotura por fatiga del material. Creemos que es obligado su recambio aunque el paciente no presente sintomatología actual, ya que la rotura del acetábulo conducirá a un aflojamiento y a una osteolisis secundaria.

We describe two cases of breakage of expansion cups in a CLS uncemented total hip arthroplasty wihtout traumatic etiologic. Both cases occurred six years after the surgery and none had breakage or polyethylene wear. We postulate that the lack of contact between the polar area of the cup and the acetabulum produces a zone of instability in the segments of the prosthesis and increases the risk of fatigue of the material. In our opinion acetabular revision is mandatory in this situation, even in asymptomatic cases, because cup rupture leads to implant loosening with secondary short-team osteolysis.

Keywords

Medicina clínica, UNESCO::CIENCIAS MÉDICAS, :CIENCIAS MÉDICAS [UNESCO], Ciencias de la salud

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green