Friction-induced whirl vibration: Root cause of squeaking in total hip arthroplasty

Weiss, Cornelius; Hothan, Arne; Huber, Gerd; Morlock, Michael M.; Hoffmann, Norbert

doi:10.1016/j.jbiomech.2011.10.025

Cited by 21 publications

(25 citation statements)

References 27 publications

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“…It has been computationally and experimentally demonstrated that squeaking can be associated with the articulation of the femoral head and cup as well as high friction from an engineering point of view [19], namely friction-induced vibration [48,49]. However, hip squeaking is multifactorial as indicated in Fig.…”

Section: Hip Squeakingmentioning

confidence: 99%

“…While several in vitro studies successfully reproduced squeaking under dry condition [19,57,61,84], it is worth noting that squeaking noises were stopped with adding a small amount of lubricant to a not-lubricated artificial hip articulation [61]. In lubricated conditions, squeaking was replicated by interposing particulate metal debris between the head and liner.…”

Section: Disrupted Fluid-film Lubricationmentioning

confidence: 99%

“…An experimental study found that a friction induced whirl vibration led to oscillation behaviour on top of the gross head movement against the liner [19]. This was a micrometer scale elliptical motion inside the liner and the vibrational pattern of hip implants was two-dimensional.…”

Section: Frictionmentioning

confidence: 99%

“…It has been reported that the femoral head vibrates inside the cup with micron amplitude within the corresponding collision plane and with nanometre amplitude normal to the collision plane due to friction-induced vibration [19,105]. This can result in a change in the contact point trajectory and contact stress on both a micro and macro scale, which can affect the final wear profile, Fig.…”

Section: High Wear Rates Of Noisy Hips Observed In Vivomentioning

confidence: 99%

“…From an engineering point of view, squeaking has been associated with friction as the femoral head and cup articulate [19]. However, hip squeaking is multifactorial and important additional factors which may contribute to hip squeaking include: (i) design and materials; (ii) implant position and orientation; (iii) patient factors; and (iv) disruption of fluid-film lubrication and friction.…”

Section: Introductionmentioning

confidence: 99%

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A review of squeaking in ceramic total hip prostheses

Askari

Flores

Dabirrahmani

et al. 2016

Tribology International

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The occurrence of audible squeaking in some patients with ceramic-on-ceramic (CoC) hip prostheses is a cause for concern. Great effort has been dedicated to understand the mechanics of the hip squeaking to gain a deeper insight into factors contributing to sound emission from CoC hip articulation. Disruption of fluid-film lubrication and friction were reported as the main potential cause, while patient and surgical factors, and design and material of hip implants, were also identified as leading factors. This article summarises the recent available literature on this subject to provide a platform for future research and development. Moreover, high wear rates and ceramic liner fracture as viable consequences of hip squeaking are discussed.

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Section: Hip Squeakingmentioning

confidence: 99%

Section: Disrupted Fluid-film Lubricationmentioning

confidence: 99%

Section: Frictionmentioning

confidence: 99%

Section: High Wear Rates Of Noisy Hips Observed In Vivomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A review of squeaking in ceramic total hip prostheses

Askari

Flores

Dabirrahmani

et al. 2016

Tribology International

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The influence of stem design on critical squeaking friction with ceramic bearings

Fan

Morlock

Bishop

et al. 2013

Journal Orthopaedic Research

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Ceramic-on-ceramic hip joints have been reported to squeak, a phenomenon that may occur in compromised lubrication conditions. One factor related to the incidence of in vivo squeaking is the stem design. However, it has not yet been possible to relate stem design to squeaking in deteriorating lubrication conditions. The purpose of this study was to determine critical friction factors for different stem designs. A hip simulator was used to measure the friction factor of a ceramic bearing with different stem designs and gradually deteriorating lubrication represented by evaporation of a volatile fluid lubricant. The critical squeaking friction factor was measured at the onset of squeaking for each stem. Critical friction was higher for the long cobalt chrome (0.32 AE 0.02) and short titanium stems (0.39 AE 0.02) in comparison with a long titanium stem (0.29 AE 0.02). The onset of squeaking occurred at a friction factor lower than that measured for dry conditions, in which squeaking is usually investigated experimentally. The results suggest that shorter or heavier stems might limit the possibility of squeaking as lubrication deteriorates. The method developed can be used to investigate the influence of design parameters on squeaking probability. ß

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