The purpose of this study was to show that the decubitus position in abducting the hip affects muscular strength, muscular activities, range of motion, pain and walk abilities after total hip arthroplasty (THA) . Subjects were the patients receiving THA. We assessed them as follows, preoperative, postoperative day 3rd, and postoperative day 10th. They were divided into the group of the spine position and the group of the prone position. In each groups, the patients quiescently abducted opposite sides' hip in maximum efforts from hip neutral position. We used the two-way repeated measures analysis of variance with two factors being decubitus position and time. The interaction was recognized regarding the time when start gluteus medius' activities in walking. In postoperative day 10th, this time were significantly more quickly in the group of the prone position than in the group of the spine position. In the group of the prone position, this time were significantly slower in postoperative day 3rd than in preoperative, and this time were significantly more quickly in postoperative day 10th than in postoperative day 3rd. It was suggested that abducting hip in the prone position reduced the delay of the time when start gluteus medius' activities more than abducting hip in the spine position.
首都大学東京, 2017-03-25, 修士（理学療法学）