To investigate the effect of muscle balance therapy on lower limb function of the patients after unilateral total hip arthroplasty.

A total of 108 patients who had underwent unilateral total hip arthroplasty in Fuyang Sixth People's Hospita from September 2017 to December 2020 were selected and randomly divided into the two groups. Fifty-four patients in the control group received conventional therapy, and 54 patients in the observation group received muscle balance therapy. The therapeutic effects of the two groups were compared with the independent sample t test.

Before treatment, there was no significant difference in Harris score, joint stiffness score, Berg balance scale and fall index between the two groups(all P>0.05). After treatment, the Harris score and Berg balance scale were increased in the two groups(t=31.131, 3.580, 50.783, 2.384, all P<0.05), the joint stiffness score and fall index were decreased in the two groups(t=13.740, 7.990, 26.259, 19.156, all P<0.05). Compared with the control group, the Harris score and Berg balance scale of the observation group were significantly increased, and the joint stiffness score and fall index were significantly decreased(t=15.663, 2.176, 13.588, 11.890, all P<0.05). Before treatment, there was no significant difference in isokinetic muscle strength with the affected hip, healthy hip, affected knee and healthy knee in the two groups(all P>0.05). After treatment, the isokinetic muscle strength with the affected hip, healthy hip, affected knee and healthy knee were increased in the two groups(t=4.384, 3.051, 2.589, 3.867, 3.021, 4.370, 2.240, 3.223, 4.591, 3.643, 3.452, 6.060, 6.008, 4.542, 5.738, 5.181, 6.116, 3.456, 5.164, 6.524, 6.402, 5.879, all P<0.05). Compared with the control group, the isokinetic muscle strength with the affected hip, healthy hip, affected knee and healthy knee of the observation group were increased significantly(t=2.209, 2.493, 2.278, 2.493, 2.458, 2.577, 2.603, 2.493, 2.105, 2.369, 2.278, 2.119, all P<0.05). Compared with the control group, the total effective rate of treatment in the observation group was significantly increased (P<0.05).

Muscle balance therapy can help improve the muscle balance of patients after unilateral total hip arthroplasty, and it is worthy of clinical application.