Methods A total of 372 patients with knee osteoarthritis who received total knee arthroplasty(TKA) at the First Central Hospital of Baoding from December 2020 to December 2021 and met the inclusion and exclusion criteria were selected for postoperative evaluation using the Tampa scale of kinesiophobia (TSK) for fear of movement. Inclusion criteria: the patients meet the diagnosis of knee osteoarthritis, primary TKA, age is from 50 to 75 years. Exclusion criteria: osteoarthritis of other joints, mental disorders, combining neuropathy or other skeletal muscular diseases, severe dysfunction of organs, prosthesis loosening, infection or bone fractures after surgery. They were divided into a fear group (TSK >37 points) and a non fear group (TSK ≤ 37 points). The general information and rehabilitation effectiveness indicators of the two groups were compared by chi square test and t test, including visual analogue scale (VAS), American Knee Association rating scale (AKSS), knee range of motion (ROM), Berg balance scale, and social support rating scale (SSRS). The correlation between the occurrence of anxiety disorder and rehabilitation outcomes as well as social support were analyzed.
Results Among the 372 patients undergoing TKA surgery, 108 patients developed fear of movement, while 264 patients did not. The incidence of fear of movement was 29.03%. The average score of the TSK scale in the panic group (42±3) was higher than that in the non panic group (21±6)( t=36.061, P<0.001). VAS score of the motor phobia group was higher than that of the non motor phobia group, while the AKSS, ROM, Berg balance scale and SRSS scores were lower than those of the non motor phobia group, with statistically significant differences (t=41.772, -21.384, -34.295, -22.906, -26.374, all P<0.05). TSK score was positively correlated with VAS score (r=0.860, P<0.001), negatively correlated with AKSS, ROM, Berg balance scale and SRSS scores (r =-0.499, -0.664, -0.529, -0.574, all P <0.001), negatively correlated with VAS score (r =-0.639, P <0.001), and positively correlated with AKSS, ROM, Berg balance scale score (r =0.842, 0.864, 0.849, all P<0.001). The results of binary logistic regression analysis showed that age[odds ratio(OR) =1.695, 95%confidence interval(CI)(1.513, 1.899)], gender[OR=0.257, 95%CI(0.149, 0.441)], body mass index[OR=6.342, 95%CI(4.308, 9.335)], years of pain[OR=5.390, 95%CI(3.597, 8.075)], VAS[OR=2.510, 95%CI(1.872, 3.366)], Berg balance scale[OR=0.477, 95%CI(0.391, 0.581)] and SRSS scores[OR=0.594, 95%CI(0.523, 0.675)] were independent influencing factors on the occurrence of motor phobia(all P<0.05).
Conclusions Knee arthroplasty has a higher incidence of phobia, and its rehabilitation effect and social support are worse than those of non phobia patients. The occurrence of ADHD is closely related to rehabilitation effect and social support, and there is a positive correlation between rehabilitation effect and social support. The intervention of postoperative rehabilitation effect and social support of patients undergoing knee arthroplasty should be enhanced.