Development of a 3D Printed Gap Gauge with Embedded Force Sensor for Balancing Unicompartmental Knee Arthroplasty

Dimitrios Kosmas*, Martijn Schouten, Gijs Krijnen, Momen Abayazid, Hans-Peter van Jonbergen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
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A novel gap-gauge with embedded sensing is developed for assisting in Oxford Unicompartmental Knee Arthroplasty (OUKA). A fully 3D printed differential capacitive sensor for normal forces is embedded into the Fused Deposition Modelling (FDM) fabricated body of the gap-gauge. The sensor consists of three conductive parallel-plates realizing two capacitive sensors with a common ground plate. It is demonstrated that for the set of specifications the 3D printed device is potentially suitable for the application. Minimal drift, weak non-linearity and hysteresis in the response are present. There is good agreement between the designed and true sensitivity.
Original languageEnglish
Title of host publication2021 IEEE Sensors
Place of PublicationPiscataway, NJ
ISBN (Electronic)978-1-7281-9501-8
ISBN (Print)978-1-7281-9502-5
Publication statusPublished - 17 Dec 2021
EventIEEE SENSORS 2021 - Australia, Sydney, Australia
Duration: 31 Oct 20213 Nov 2021

Publication series

NameIEEE Sensors
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229


ConferenceIEEE SENSORS 2021
Internet address


  • 3D Printed Sensors
  • Fused Deposition Modelling,
  • Oxford Unicompartmental Knee Arthroplasty
  • Capacitive Sensor
  • Normal force
  • 2023 OA procedure


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