BACKGROUND Knee and hip osteoarthritis affects millions of people around the world and is expected to rise even more in frequency as the population ages.Joint arthroplasty is the surgical management of choice in these...BACKGROUND Knee and hip osteoarthritis affects millions of people around the world and is expected to rise even more in frequency as the population ages.Joint arthroplasty is the surgical management of choice in these articulations.Heterotopic ossi-fication and radiolucent lines formation are two frequent problems faced in hip and knee replacements respectively.Some studies show that the usage of pulsed lavage may prevent their formation.AIM To compare pulsed lavage to standard lavage in joint arthroplasty.METHODS PubMed,Cochrane,and Google Scholar(page 1-20)were searched till December 2023.Only comparative studies were included.The clinical outcomes evaluated were the heterotopic ossification formation in hip replacements,radiolucent lines formation,and functional knee scores in knee replacements.RESULTS Four studies met the inclusion criteria and were included in this meta-analysis.Pulsed lavage was shown to reduce the formation of radiolucent lines(P=0.001).However,no difference was seen in the remaining outcomes CONCLUSION Pulsed lavage reduced the formation of radiolucent lines in knee replacements.No difference was seen in the remaining outcomes.Furthermore,the clinical significance of these radiolucent lines is poorly understood.Better conducted randomized controlled studies and cost-effectivity studies are needed to reinforce these findings.展开更多
The deployment of wireless technologies in the radiology field requires development of radiolucent materials allowing wireless communication. In this paper, both the radiolucency (X-rays) and Electro-Magnetic (EM) pro...The deployment of wireless technologies in the radiology field requires development of radiolucent materials allowing wireless communication. In this paper, both the radiolucency (X-rays) and Electro-Magnetic (EM) properties of the conductive polymer poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) are investigated to address wireless applications in the field of the radiology. A model was developed to predict the PEDOT:PSS performance and assess the interest of this material in terms of radiolucency characteristics and Electro Magnetic (EM) radiation efficiency. A PEDOT:PSS antenna operating in the Radio-Frequency Identification (RFID) Ultra High Frequency (UHF) band, was realized to experimentally validate abilities of PEDOT:PSS. These performances are compared with those produced by a similar antenna made of conventional materials such as copper. Experimental results validate the numerical model of the designed structure. This paper demonstrates the potential of polymer materials in the field of x-ray imaging.展开更多
文摘BACKGROUND Knee and hip osteoarthritis affects millions of people around the world and is expected to rise even more in frequency as the population ages.Joint arthroplasty is the surgical management of choice in these articulations.Heterotopic ossi-fication and radiolucent lines formation are two frequent problems faced in hip and knee replacements respectively.Some studies show that the usage of pulsed lavage may prevent their formation.AIM To compare pulsed lavage to standard lavage in joint arthroplasty.METHODS PubMed,Cochrane,and Google Scholar(page 1-20)were searched till December 2023.Only comparative studies were included.The clinical outcomes evaluated were the heterotopic ossification formation in hip replacements,radiolucent lines formation,and functional knee scores in knee replacements.RESULTS Four studies met the inclusion criteria and were included in this meta-analysis.Pulsed lavage was shown to reduce the formation of radiolucent lines(P=0.001).However,no difference was seen in the remaining outcomes CONCLUSION Pulsed lavage reduced the formation of radiolucent lines in knee replacements.No difference was seen in the remaining outcomes.Furthermore,the clinical significance of these radiolucent lines is poorly understood.Better conducted randomized controlled studies and cost-effectivity studies are needed to reinforce these findings.
文摘The deployment of wireless technologies in the radiology field requires development of radiolucent materials allowing wireless communication. In this paper, both the radiolucency (X-rays) and Electro-Magnetic (EM) properties of the conductive polymer poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) are investigated to address wireless applications in the field of the radiology. A model was developed to predict the PEDOT:PSS performance and assess the interest of this material in terms of radiolucency characteristics and Electro Magnetic (EM) radiation efficiency. A PEDOT:PSS antenna operating in the Radio-Frequency Identification (RFID) Ultra High Frequency (UHF) band, was realized to experimentally validate abilities of PEDOT:PSS. These performances are compared with those produced by a similar antenna made of conventional materials such as copper. Experimental results validate the numerical model of the designed structure. This paper demonstrates the potential of polymer materials in the field of x-ray imaging.
