Design of Hip Simulation Machine for Hip Labrum Testing

  • Chanatkarn Angsutanasombat Mahidol University
  • Panya Aroonjarattham Mahidol University
  • Nadhaporn Saengpetch Mahidol University
  • Pornsak Nirunsuk Mahidol University
  • Kitti Aroonjarattham Burapha University
  • Chompunut Somtua Mahidol University

Downloads

Download data is not yet available.

Abstract

The acetabular labrum is the connective tissue between femoral head and hip joint that acts like a shock absorber. Labral injury could happen after hip dislocation or internal derangement such as femeroacetabular impingement (FAI) syndrome. The surgeon usually attempts to repair or reconstruct the torn labrum to obtain the native hip biomechanical loading.  There has been no scientific evidence study for the different surgical techniques. Hip simulation machine was made to let a femur move in six conditions including step forward, step backward, abduction, adduction, internal rotation and external rotation. The hip was compressed with a force of half of the body weight (350 N). The purpose of this study was to study pressurization in three labral conditions including intact labrum, labral repair and labral reconstruction. The machine was designed and simulated by SolidWorks software. A device’s controller had two mode including a manual mode to set zero before an operation and automation mode to move in six conditions and compressed with a force of body weight. After the construction, the machine was tasted by using counterfeit pelvis and femur. The device was reformed before a real taste. Dissected cadaveric pelvises were used and measured pressure through the film piezoresistive load sensors. The testing result was helped the surgeon to make a decision in surgery process.

View article in other formats
Author Biographies
Chanatkarn Angsutanasombat

Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakornpathom, Thailand

Panya Aroonjarattham

Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakornpathom, Thailand

Nadhaporn Saengpetch

Department of Orthopaedics, Faculty of Ramathibodi Hospital, Mahidol University, Bangkok, Thailand

Pornsak Nirunsuk

Department of Orthopaedics, Faculty of Ramathibodi Hospital, Mahidol University, Bangkok, Thailand

Kitti Aroonjarattham

Department of Orthopaedics, Faculty of Medicine, Burapha University, Chonburi, Thailand

Chompunut Somtua

Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakornpathom, Thailand

Published
Vol 22 No 2, Mar 30, 2018
How to Cite
C. Angsutanasombat, P. Aroonjarattham, N. Saengpetch, P. Nirunsuk, K. Aroonjarattham, and C. Somtua, “Design of Hip Simulation Machine for Hip Labrum Testing”, Eng. J., vol. 22, no. 2, pp. 117-130, Mar. 2018.

Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.

Article Statistics
Total PDF downloads: 183