To explore the effect of Otage exercise on functional exercise in elderly patients with total hip arthroplasty (THA).

From November 2019 to June 2020, 68 patients who met the criteria for hip arthroplasty treatment in Changsha Central Hospital were selected as research subjects, and the subjects were randomly divided into the control group and the intervention group with 34 cases each using a random number table.The control group received routine rehabilitation instruction, and the intervention group carried out Otage exercise on the basis of the control group. Harris hip function (Harris hip) score, Berg balance scale (BBS) score, incidence of complications, time to full load both lower limbs and length of hospital stay were measured in both groups before intervention, at discharge, and eight weeks after intervention.The measurement data were analyed by t test, and the counting data were analyzed by chi-square test or Fisher precision test. Repeated measurement for variance was used for different time comparisons between groups.

Harris scores in the intervention group were higher than those in the control group at the end of eight weeks (t=3.264, 4.372, both P<0.05). The BBS score of the intervention group was higher than that of the control group at discharge (t=1.937, P>0.05); the BBS score of the intervention group was higher than that of the control group at eight weeks (t=5.230, P<0.05); the incidence of complications, time of full lower limb loading and length of hospital stay in the intervention group were less than those in the control group (χ²=4.660, t=3.381, 2.139, all P<0.05).

Otage exercise can improve the balance force of elderly patients after THA, reduce the incidence of complications, the time of full load of lower limbs and the length of stay in hospital, and has a certain effect on promoting the recovery of hip function.