Soft-tissue balance evaluation system for total hip arthroplasty by intraoperative contact pressure measurement at the hip joint

Yoshito Otake, Naoki Suzuki, Asaki Hattori, Mitsuhiro Hayashibe, Hidenobu Miki, Mitsuyoshi Yamamura, Nobuhiko Sugano, Kazuo Yonenobu, Takahiro Ochi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We developed a system for measurement of contact pressure at the hip joint surfaces that enables checking of the artificial hip joint condition during surgery. First, we constructed the pressure sensor that forms the artificial joint. We installed eight small pressure sensors to the spherical head component, a part of the ball-socket joint. Next, we developed software for recording and visualizing the detected pressures that were recorded every 1ms. The pressure distribution was displayed with the 3D computer graphics in real-time. The system enabled intuitive recognition of pressure direction 3-dimensions. Next, using the system, we conducted measurements during total hip arthroplasty. Although it requires some improvements in its measurement accuracy, the system allows real-time acquisition of information on the artificial hip joint in real-time. Further improvements of the calibration method should enable more accurate measurements. As a complete system, it will be a useful tool for selecting an appropriate implant that fits a patient's hip joint or for estimating the risk of complications after surgery.

Original languageEnglish
Title of host publicationMedicine Meets Virtual Reality 14 - Accelerating Change in Healthcare
Subtitle of host publicationNext Medical Toolkit, MMVR 2006
PublisherIOS Press
Pages416-421
Number of pages6
ISBN (Print)1586035835, 9781586035839
Publication statusPublished - 2006
EventMedicine Meets Virtual Reality 14 - Accelerating Change in Healthcare: Next Medical Toolkit, MMVR 2006 - Long Beach, CA, United States
Duration: 2006 Jan 242006 Jan 27

Publication series

NameStudies in Health Technology and Informatics
Volume119
ISSN (Print)0926-9630
ISSN (Electronic)1879-8365

Conference

ConferenceMedicine Meets Virtual Reality 14 - Accelerating Change in Healthcare: Next Medical Toolkit, MMVR 2006
CountryUnited States
CityLong Beach, CA
Period06/1/2406/1/27

Keywords

  • Contact pressure
  • Four-dimensional muscle model
  • Pressure measurement system
  • Total hip arthroplasty

ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Informatics
  • Health Information Management

Fingerprint Dive into the research topics of 'Soft-tissue balance evaluation system for total hip arthroplasty by intraoperative contact pressure measurement at the hip joint'. Together they form a unique fingerprint.

  • Cite this

    Otake, Y., Suzuki, N., Hattori, A., Hayashibe, M., Miki, H., Yamamura, M., Sugano, N., Yonenobu, K., & Ochi, T. (2006). Soft-tissue balance evaluation system for total hip arthroplasty by intraoperative contact pressure measurement at the hip joint. In Medicine Meets Virtual Reality 14 - Accelerating Change in Healthcare: Next Medical Toolkit, MMVR 2006 (pp. 416-421). (Studies in Health Technology and Informatics; Vol. 119). IOS Press.