Measurement of Intraoperative Range of Motion of Total Hip Arthroplasty Using an Inertial Measurement Unit Based Smart Trial System: an in Vitro Validation Experiment

8 pages•Published: July 12, 2018

Hao Tang, Yixin Zhou, Baojun Mai, Binjie Zhu, Ping Chen and Yujia Fu

Abstract

Intraoperative detection of hip Range of Motion ( ROM ) is the basis for prediction of postoperative functional limits allowed for patients’ daily living. Although computer navigation system for Total Hip Arthroplasty ( THA ) has improved the accuracy of intraoperative ROM evaluation, it has not been able to gain popularity because of its complex and time-consuming procedures. We preliminarily developed a Inertial Measurement Unit based Hip Smart trial system ( IMUHS ) that is easy and simple to use. An in vitro validation experiment was conducted using radiopaque sawbones with imaging measurement method as the reference standard. The validity of measuring ROM in the three axes was as follows: 4.36±4.93°for
flexion and extension, 1.75 ± 5.21°for adduction and abduction, and 6.42 ± 4.32°for internal and external rotation( p = 0.059 ~ 0.550 ). The ICC values of measuring ROM in all three axes
were 1.00. As measuring ROM is the basis for evaluating direction of impingement, subluxation and dislocation, the IMUHS is a promising development direction of THA computer assisted surgery.

Keyphrases: inertial measurement unit, range of motion, reliability, total hip arthroplasty, validity

In: Wei Tian and Ferdinando Rodriguez Y Baena (editors). CAOS 2018. The 18th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 2, pages 200-207.

Links:	https://easychair.org/publications/paper/lhVv
	https://doi.org/10.29007/jmjj

BibTeX entry

@inproceedings{CAOS2018:Measurement_Intraoperative_Range_Motion,
  author    = {Hao Tang and Yixin Zhou and Baojun Mai and Binjie Zhu and Ping Chen and Yujia Fu},
  title     = {Measurement of Intraoperative Range of Motion of Total Hip Arthroplasty Using an Inertial Measurement Unit Based Smart Trial System:  an in Vitro Validation Experiment},
  booktitle = {CAOS 2018. The 18th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Wei Tian and Ferdinando Rodriguez Y Baena},
  series    = {EPiC Series in Health Sciences},
  volume    = {2},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {/publications/paper/lhVv},
  doi       = {10.29007/jmjj},
  pages     = {200-207},
  year      = {2018}}

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