000057911 001__ 57911
000057911 005__ 20190509145200.0
000057911 0247_ $$2doi$$a10.1155/2014/548968
000057911 0248_ $$2sideral$$a87911
000057911 037__ $$aART-2014-87911
000057911 041__ $$aeng
000057911 100__ $$aGabarre, S.
000057911 245__ $$aStudy of the polycarbonate-urethane/metal contact in different positions during gait cycle
000057911 260__ $$c2014
000057911 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057911 5203_ $$aNowadays, a growing number of young andmore active patients receive hip replacement.More strenuous activities in such patients involve higher friction and wear rates, with friction on the bearing surface being crucial to ensure arthroplasty survival in the long term. Over the last years, the polycarbonate-urethane has offered a feasible alternative to conventional bearings. A finite element model of a healthy hip joint was developed and adjusted to three gait phases (heel strike, mid-stance, and toe-off), serving as a benchmark for the assessment of the results of joint replacement model. Three equivalent models were made with the polycarbonate-urethane Tribofit system implanted, one for each of the three gait phases, after reproducing a virtual surgery over the respective healthy models. Standard body-weight loads were considered: 230% body-weight toe-off, 275% body-weight mid-stance, and 350% body-weight heel strike. Contact pressures were obtained for the different models. When comparing the results corresponding to the healthy model to polycarbonate-urethane joint, contact areas are similar and so contact pressures are within a narrower value range. In conclusion, polycarbonate-urethane characteristics are similar to those of the joint cartilage. So, it is a favorable alternative to traditional bearing surfaces in total hip arthroplasty, especially in young patients.
000057911 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000057911 590__ $$a1.579$$b2014
000057911 591__ $$aMEDICINE, RESEARCH & EXPERIMENTAL$$b85 / 123 = 0.691$$c2014$$dQ3$$eT3
000057911 591__ $$aBIOTECHNOLOGY & APPLIED MICROBIOLOGY$$b107 / 163 = 0.656$$c2014$$dQ3$$eT2
000057911 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057911 700__ $$0(orcid)0000-0002-8643-7558$$aHerrera, A.$$uUniversidad de Zaragoza
000057911 700__ $$0(orcid)0000-0001-7516-4737$$aMateo, J.$$uUniversidad de Zaragoza
000057911 700__ $$aIbarz, E.
000057911 700__ $$aLobo-Escolar, A.
000057911 700__ $$aGracia, L.
000057911 7102_ $$11004$$2830$$aUniversidad de Zaragoza$$bDpto. Cirugía,Ginecol.Obstetr.$$cÁrea Traumatología y Ortopedia
000057911 773__ $$g2014, 548968 (2014), [11 pp]$$pBioMed res. int.$$tBioMed Research International$$x2314-6133
000057911 8564_ $$s4944121$$uhttps://zaguan.unizar.es/record/57911/files/texto_completo.pdf$$yVersión publicada
000057911 8564_ $$s93925$$uhttps://zaguan.unizar.es/record/57911/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057911 909CO $$ooai:zaguan.unizar.es:57911$$particulos$$pdriver
000057911 951__ $$a2019-05-09-14:49:07
000057911 980__ $$aARTICLE