Three-dimensional gait analysis using Anti-gravity treadmill after total hip replacement

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K10382
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthopaedic surgery
• Research Institution: Hokkaido University
• Principal Investigator: TOHRU IRIE 北海道大学, 大学病院, 助教 (30609839)
• Co-Investigator(Kenkyū-buntansha): 小野寺 智洋 北海道大学, 大学病院, 講師 (70547174) ; 遠山 晴一 北海道大学, 保健科学研究院, 教授 (60301884)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 荷重免荷型トレッドミル / 三次元歩行計測 / 人工関節置換術

Outline of Final Research Achievements

We evaluated the three-dimensional gait analysis of patients who underwent total hip replacement for osteoarthritis under conditions of 50% load, 75% load, 100% load using anti-gravity treadmill. We performed the measurement preoperatively, 3 weeks postoperatively, 6 weeks postoperatively.
At 3 weeks postoperatively, the maximum knee joint extension angle at 50% load significantly increased compared to 100% load. At 6 weeks postoperatively, the maximum hip joint flexion angle at 50% load significantly decreased compared to 100% load and the maximum knee joint extension angle at 50% load significantly increased compared to 100% load.
The current study suggested that the rehabilitation using an anti-gravity treadmill may be effective especially at preoperatively to 3 weeks postoperatively and that this is more effective to maintain the load amount up to 75% load.

Free Research Field

股関節外科学