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PubMed Narrative Review Evidence Moderate

Cruciate retaining and cruciate substituting ultra-congruent insert.

Annals of translational medicine | 2016 | Mazzucchelli L, Deledda D, Rosso F, Ratto N

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Source
PubMed
Type
Narrative Review
Evidence
Moderate

Abstract

Conflict of interest statement: Conflicts of Interest: The authors have no conflicts of interest to declare. 15. Acta Ortop Mex. 2024 Sep-Oct;38(5):307-320. [Conversions from failed unicompartmental prostheses to total knee replacement]. [Article in Spanish; Abstract available in Spanish from the publisher] Olivetto R(1). Author information: (1)Sanatorio Americano, Rosario, Santa Fe, Argentina. The evolution and challenges of unicompartmental knee prostheses (UNIS) are addressed, highlighting their use since the 1970s as an alternative to osteotomies. Over the years, these prostheses have gained popularity, although they initially faced criticism due to higher revision rates compared to total knee arthroplasties (TKA). Multicenter studies, such as that of Heck et al., revealed an increase in failures associated with body mass index and female sex. Despite this, recent reviews, such as that of Vasso et al., have shown a positive evolution in the results of UNIS, although with a higher percentage of revisions than TKA. The importance of adequate patient selection, meticulous surgical technique, and avoidance of overcorrection for surgical success is also emphasized. It is mentioned that external UNIS, although representing a small percentage of total prosthetic knees, have shown favorable results in terms of long-term survival. In addition, technical aspects such as minimal bone resection and polyethylene wear, which are crucial for the performance of prostheses, are discussed. In conclusion, the need for further research and improvement of techniques to optimize the results of unicompartmental arthroplasties is highlighted. Publisher: Se aborda la evolución y los desafíos de las prótesis unicompartimentales de rodilla (Unis), destacando su uso desde la década de 1970 como alternativa a las osteotomías. A lo largo de los años, estas prótesis han ganado popularidad, aunque inicialmente enfrentaron críticas debido a tasas de revisión más altas en comparación con las artroplastias totales de rodilla (ATR). Estudios multicéntricos, como el de Heck y colaboradores, revelaron un aumento en las fallas asociadas con el índice de masa corporal y el sexo femenino. A pesar de esto, revisiones recientes, como la de Vasso y colegas, han mostrado una evolución positiva en los resultados de las Unis, aunque con un porcentaje de revisiones superior al de las ATR. También se enfatiza la importancia de una adecuada selección de pacientes, una técnica quirúrgica meticulosa y la evitación de sobrecorrección para el éxito de la cirugía. Se menciona que las Unis externas, aunque representan un pequeño porcentaje del total de rodillas protésicas, han mostrado resultados favorables en términos de supervivencia a largo plazo. Además, se discuten aspectos técnicos como la resección ósea mínima y el desgaste de polietileno, que son cruciales para el rendimiento de las prótesis. En conclusión se resalta la necesidad de seguir investigando y mejorando las técnicas para optimizar los resultados de las artroplastias unicompartimentales.

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