The Hard on Hard Bearings in THA – Current concepts

Gopinathan, P.

doi:10.1016/j.jor.2014.08.004

Cited by 6 publications

(4 citation statements)

References 31 publications

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“…The use of hard-on-hard bearings in total hip arthroplasty (THA) has been shown to have benefits including better stability, decreased wear rate, and greater longevity [ 1 ]. These bearings, such as metal-on-metal (MoM) and ceramic-on-ceramic (CoC), gained popularity due to the concern for polyethylene wear in metal-on-polyethylene (MoP) implants.…”

Section: Introductionmentioning

confidence: 99%

Femoral Nerve Compression due to Adverse Local Tissue Reaction After Ceramic-on-ceramic Total Hip Arthroplasty

Rodriguez¹,

Mekkawy²,

Cannon³

et al. 2023

Arthroplasty Today

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Section: Introductionmentioning

confidence: 99%

Femoral Nerve Compression due to Adverse Local Tissue Reaction After Ceramic-on-ceramic Total Hip Arthroplasty

Rodriguez¹,

Mekkawy²,

Cannon³

et al. 2023

Arthroplasty Today

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“…This is reflected by the large variety of hip prostheses currently on the market, and rapid innovations in the field. Several cup-head material combinations are currently used, namely ultra-high molecular weight polyethylene (UHMWPE) with cobalt-chromium-molybdenum (CoCrMo) alloys or alumina heads, or hard-on-hard bearings where both the cup and head are made of CoCrMo or alumina [3,5,6]. As a result of the poor clinical performance and high rates of failure, the use of metal-on-metal (MoM) implants has virtually ceased across England and Wales due to wear and metallic ion release [4].…”

Section: Introductionmentioning

confidence: 99%

Mapping the Micro-Abrasion Mechanisms of CoCrMo: Some Thoughts on Varying Ceramic Counterface Diameter on Transition Boundaries In Vitro

et al. 2020

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The micro-abrasion wear mechanisms for CoCrMo against variable size alumina balls, representing typical artificial femoral head sizes, were investigated over a range of applied loads in foetal calf serum solution. SEM analysis of resulting wear scars displayed two-body and mixed-mode abrasion modes of wear. The wear factor, κ, was found to range between 0.86 and 22.87 (10−6 mm3/Nm). Micro-abrasion mechanism and wastage maps were constructed for the parameter range tested. A dominant two- to three-body abrasion regime was observed with an increasing load and ball diameter. The 28-mm ball diameter displayed the lowest wastage, with an increasing load. Proteins may act to reduce the severity of contact between abrasive particles and bearing surfaces. Wear volumes did not necessarily increase linearly with applied load and ball diameter; therefore, there is a need to develop more accurate models for wear prediction during micro-abrasion conditions. Wear mapping for hip replacements could provide a useful aid for pre-clinical hip wear evaluations and long-term performance.

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“…[1] However, despite improved implant designs and surgical techniques, bearing surface wear and the resultant wear-induced osteolysis have been major limitations to long-term prosthesis survival. [1][2][3] In an attempt to avoid the problems caused by wear debris, hard bearing surfaces, such as ceramic-on-ceramic (CoC) have been developed.…”

Section: Introductionmentioning

confidence: 99%

Triboelectric touch sensor for position mapping during total hip arthroplasty

Jeong

Kim

Yoo

2020

Preprint

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Objective: In this research, a triboelectric nanogenerator (TENG) was utilized to determine if a pressure-based sensor could detect bearing friction in a total hip arthroplasty (THA) and detect the contact of specific areas during ROM checks. Results : The pressure-based sensor shows capability to sense bearing friction. In more detail, the TENG embedded in four different sides of the trial exhibits up to 1 V from peak-to-peak. Moreover, these flexible touch sensors with TENG describes a peak signal in output voltage which should lead to extremely sensitive detection of bearing friction induced by the THA.

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The Hard on Hard Bearings in THA – Current concepts

Cited by 6 publications

References 31 publications

Femoral Nerve Compression due to Adverse Local Tissue Reaction After Ceramic-on-ceramic Total Hip Arthroplasty

Femoral Nerve Compression due to Adverse Local Tissue Reaction After Ceramic-on-ceramic Total Hip Arthroplasty

Mapping the Micro-Abrasion Mechanisms of CoCrMo: Some Thoughts on Varying Ceramic Counterface Diameter on Transition Boundaries In Vitro

Triboelectric touch sensor for position mapping during total hip arthroplasty

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