A sliding-distance-coupled finite element formulation for polyethylene wear in total hip arthroplasty

Maxian, Tina A.; Brown, Thomas D.; Pedersen, Douglas R.; Callaghan, John J.

doi:10.1016/0021-9290(95)00125-5

Cited by 142 publications

(151 citation statements)

References 8 publications

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“…The diameter of the femoral head is 28 mm. [13] 0.116 Numerical method [20] 18.0 Others Current algorithm FEM, with model modification 0.073 58.417…”

Section: Discussionmentioning

confidence: 99%

“…Thus, the loading pressure imposed on the model for each stage is calculated from the magnitude of the force obtained and the projected area of the outer surface of compact bone normal to the direction of the force. Some 1.5 million gait cycles were totally applied to the artificial hip joint to assess the wear depth/volume in this study [20].…”

Section: The Artificial Hip Joint Modelmentioning

confidence: 99%

“…In order to understand the effect of the model modification, we set up six courses with designated model-modified cycles, say, 1,000,000, [20], also showed a linear wear rate of 0.11 mm per year, but with a volumetric wear rate of 13 mm 3 per year. Note that Maxian's volumetric wear rate is much lower than all others referred to above.…”

Section: Assessment Of 6alidity From the Pin-on-disk Modelmentioning

confidence: 99%

“…As a result of the high efficiency and reliable results obtained, studies concerning the estimation of structural wear have focused on the utilization of computer programs and numerical methods. In the past few years, Wang et al [17], Pietrabissa et al [18], Jin et al [19] and Maxian et al [20] used the Hertz theorem to calculate contact stresses on the interface and estimate the wear depth and the wear volume using the simplified Archard's model in different forms. The Hertz contact theorem can be used only for contact bodies with conformal counterface (contact surface) under steady loadings or static loadings.…”

Section: Introductionmentioning

confidence: 99%

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The computer simulation of wear behavior appearing in total hip prosthesis

Hung

Shu³

et al. 2003

Computer Methods and Programs in Biomedicine

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Computer algorithms are proposed for the estimation of wear appearing in artificial hip joints using finite element analysis based on the modified Archard's wear law, contact features and an analogue wear process. A pin-on-disk plate experiment is reconstructed to assess the efficiency and validity of the algorithms proposed here. Through the successful verification of wear depth and volume loss of the pin-on-disk plate as well as the artificial hip joint, the current algorithms provide significant agreement with experiments, clinical measurements and numerical calculations and are shown to be both valid and feasible. Further investigation into the effect of femoral heads with various sizes suggests that the larger femoral head may induce larger wear volume but gives a smaller wear depth and that wear depth and volume loss are apparently nonlinearly related to the femoral head diameter. It is shown that the current algorithms are useful and helpful in understanding wear behavior for alternative or new designs of artificial hip joints and even for other analogous structures.

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“…The diameter of the femoral head is 28 mm. [13] 0.116 Numerical method [20] 18.0 Others Current algorithm FEM, with model modification 0.073 58.417…”

Section: Discussionmentioning

confidence: 99%

Section: The Artificial Hip Joint Modelmentioning

confidence: 99%

Section: Assessment Of 6alidity From the Pin-on-disk Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The computer simulation of wear behavior appearing in total hip prosthesis

Hung

Shu³

et al. 2003

Computer Methods and Programs in Biomedicine

View full text Add to dashboard Buy / Rent full text

show abstract

“…In particular, for the THR with a UHMWPE polymeric component the wear simulation is based on the classical Archard equation together with all other studies reported in literature referred to, for example, in [6,7,8], where the wear factor is taken as a constant value. In [5], the polymer wear in terms of cumulative linear and volume wear when the wear factor is chosen to be a function of contact pressure was first evaluated.…”

Section: Introductionmentioning

confidence: 99%