Weight-shifting-based robot control system improves the weight-bearing rate and balance ability of the static standing position in hip osteoarthritis patients: a randomized controlled trial focusing on outcomes after total hip arthroplasty.

Journal: PeerJ
PMID: 37214101

Abstract

BACKGROUND: After a total hip arthroplasty (THA), standing and walking balance are greatly affected in the early stages of recovery, so it is important to increase the weight-bearing amount (WBA) on the operated side. Sometimes, traditional treatments may not be enough to improve WBA and weight-bearing ratio (WBR) on the operated side in a satisfactory way. To solve this problem, we came up with a new weight-shifting-based robot control system called LOCOBOT. This system can control a spherical robot on a floor by changing the center of pressure (COP) on a force-sensing board in rehabilitation after THA. The goal of this study was to find out how rehabilitation with the LOCOBOT affects the WBR and balance in a static standing position in patients with unilateral hip osteoarthritis (OA) who had a primary uncemented THA.

Authors

  • Shigeaki Miyazaki
    Rehabilitation Unit, University of Miyazaki Hospital, Miyazaki, Japan.
  • Go Yamako
    Department of Mechanical Engineering, Faculty of Engineering, University of Miyazaki, Miyazaki, Japan.
  • Hideki Arakawa
    Rehabilitation Unit, University of Miyazaki Hospital, Miyazaki, Japan.
  • Takero Sakamoto
    Department of Orthopaedic Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
  • Tsubasa Kawaguchi
    Rehabilitation Unit, University of Miyazaki Hospital, Miyazaki, Japan.
  • Kirari Ito
    Department of Mechanical Engineering, Faculty of Engineering, University of Miyazaki, Miyazaki, Japan.
  • Etsuo Chosa
    Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan.

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