Development of a protocol for the performance evaluation of wear machines used in tests of joint prostheses

Oliveira, A.L.L.; Trigo, F.C.; Queiroz, Roberto Dantas; Carvalho, Rogério Teixeira de

doi:10.1016/j.mechmachtheory.2012.10.011

Cited by 6 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hip joint wear testers, as called hip joint simulator, is developed for the wear evaluation of hip prostheses during a specified duration, under body-simulated conditions referring to the dynamic and kinematic characteristics of human hip joint (Cheng and Shan, 2012). Wear rates and particles in the hip simulator studies are similar to those observed in vivo experience (Hua and Zhang, 2008;Saikko and Shen, 2010;Oliveira et al, 2013;Wang et al, 2013). Currently, ISO organization has published several standards on the wear tests of hip prostheses (ISO, 2009(ISO, , 2014(ISO, , 2016.…”

Section: Introductionmentioning

confidence: 92%

Wear Test Apparatus for Friction and Wear Evaluation Hip Prostheses

et al. 2019

View full text Add to dashboard Cite

Wear is a key factor affecting the survivorship of artificial hip joints. Joint wear testers, as called "simulators," are developed to simulate the motions and force of human joints. By using simulators, in vitro wear tests could be performed for artificial joints. This paper introduces a new hip joint simulator developed for the biotribological investigation of artificial hip joints. Friction force measuring module has been set up and assembled to monitor the friction force during the wear tests. Validation tests have been performed using two kinds of wear couples of 28 mm CoCrMo femoral heads, against conventional and X-linked ultra-high molecular weight polyethylene (UHMWPE) acetabular cups. The hip joint simulator is a precise and reliable method, both for the wear evaluation and biotribological investigation of hip prostheses.

show abstract

Section: Introductionmentioning

confidence: 92%

Wear Test Apparatus for Friction and Wear Evaluation Hip Prostheses

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Moreover, it is interesting to perform wear tests as faithfully as possible to the in vivo conditions, which includes simulation in normal gait frequency, approximately 1 Hz. Recent research [2] points out that a feasible number of points that hip joint simulators can track in real time at such a frequency is around 30, that is, the interpolated points must be downsampled by a factor of approximately 3.…”

Section: Interpolation Of Iso Coordinatesmentioning

confidence: 99%

“…During the last few decades, tests performed in biomechanical simulators have brought the major contribution for the development of prosthetics joint biotribosystems, thus increasing their longevity. Nonetheless, the lack of a strict and universally accepted protocol for performance of wear tests allowed several wear machines for THA testing to be erroneously named 'biomechanical simulators' [2].…”

Section: Introductionmentioning

confidence: 99%

“…Aiming at investigating the surface phenomena on THA components tested according to ISO 14242-1 and ISO 14242-3, two similar unused prosthetic hip joint pairs were tested in a biomechanical simulator [2], being each one probed during one million cycles according to either ISO prescribed kinematic conditions. At the end of the tests, the rolling contact surfaces were compared with their initial condition, and the differences were quantified.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation