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Can the radiopaque marker in surgical swabs scratch orthopaedic implant surfaces?

  • Anthony A. TheodoridesEmail author
  • Todd D. Stewart
  • Ram Venkatesh
Original Article • GENERAL ORTHOPAEDICS - BIOMECHANICS
  • 17 Downloads

Abstract

Aims

To determine whether the radiopaque marker strip, which is woven in surgical swabs, causes measureable wear on metal implants at pressures typically used to wipe off fluid from their surface.

Materials and methods

Finger pressure used to wipe a surface was measured and used as a reference pressure for further testing. A tribological wear rig was then used to analyse the wear caused on polished titanium plates by a cobalt chromium pin (the control test), the pin covered by a surgical swab and the pin covered by a radiopaque marker strip.

Results

It was found that the cotton part or the radiopaque marker of surgical swabs on polished medical grade titanium plates caused no significant wear. In contrast severe scratching was observed from the cobalt chromium pin on its own.

Conclusion

To our knowledge, this is the first study in the literature analysing the wear caused by the surgical swabs and radiopaque strip on metal implants. The results suggest that surgical swabs are safe to use on metallic implants at pressures typical of a wiping motion.

Keywords

Swab Wear Radiopaque marker X-ray Implant Metal Titanium 

Notes

Acknowledgements

This work was supported by the NIHR (National Institute for Health Research) through funding of the LMBRU (Leeds Musculoskeletal Biomedical Research Unit).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2018

Authors and Affiliations

  • Anthony A. Theodorides
    • 1
    Email author
  • Todd D. Stewart
    • 1
    • 2
  • Ram Venkatesh
    • 1
  1. 1.Leeds Musculoskeletal Biomedical Research UnitChapel Allerton HospitalLeedsUK
  2. 2.Institute of Medical and Biological EngineeringUniversity of LeedsLeedsUK

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