Fear of movement and other associated factors in older patients with total knee arthroplasty

Heterogeneity of social participation in patients three months after total knee arthroplasty: a latent profile analysis

BACKGROUND

Social participation is an important index of rehabilitation and social reintegration in patients after total knee arthroplasty (TKA). However, most existing studies focus on improving patients' functioning and activities, with only a few examining the social participation among patients after TKA. Therefore, the study aims to investigate the heterogeneity of social participation in patients three months after TKA and analyze subgroup influencing factors, to promote functional exercise and postoperative follow-up in specific patients.

METHODS

This cross-sectional study recruited 255 patients who underwent TKA in a Tertiary Hospital in Jinan City, China, from March to July 2022. Three months after having undergone TKA, participants' data were collected using the Numeric Pain Rating Scale, the Chinese version of the Tampa Scale of Kinesiophobia, the 10-item Kessler Psychological Distress Scale, Hospital for Special Surgery Knee-rating Scale, and Impact on Participation and Autonomy Questionnaire. Latent profile analysis was used to identify categories of patients' social participation. Multiple logistic regression analysis was used to analyze the influencing factors of the different subgroups.

RESULTS

Three months after TKA, the patients were divided into three subgroups: low social participation group (17.9%), moderate social participation group (40.8%), and high social participation group (41.3%). The vast majority of patients who underwent TKA exhibited moderate-to-high level of social participation. The multiple logistic regression analysis results showed that age, degree of pain, knee function, and kinesiophobia were the influencing factors of the potential profiles of social participation in patients three months after TKA (p < 0.05).

CONCLUSION

These results support a distinct categorical feature of social participation among patients three months after undergoing TKA. Medical staff need to provide targeted guidance according to the potential classification characteristics of social participation to improve the level of social participation and promote rehabilitation of patients.

The Effect of Foot Reflexology on Pain and Kinesiophobia in Patients Following Total Knee Arthroplasty: A Double-Blind Randomized Controlled Study

Nonpharmacological methods are used in the management of pain and kinesiophobia following total knee arthroplasty. The aim of this double-blind randomized controlled trial was to examine the effect of foot reflexology on pain and kinesiophobia in patients following total knee arthroplasty. A total of 40 patients (20 in the control group and 20 in the intervention group) were randomly assigned to either of two groups for the study. The intervention group was exposed to foot reflexology. Postoperative Visual Analog Scale scores decreased faster in the intervention group compared to the control group (F = 80.417; p < .001; η2 = 0.685). The Western Ontario and McMaster Universities Osteoarthritis Index scores decreased in the intervention group over time, while they increased in the control group (p < .05). While a gradual increase was observed in the Tampa Scale for Kinesiophobia scores in the control group, there was a decrease in the intervention group (F = 84.860; p < .001; η2 = 0.696). The amount of analgesics used was lower in the intervention group (p < .05). Foot reflexology can be applied as an effective and safe method to manage pain and kinesiophobia in total knee arthroplasty patients.

Effects of amino acid supplementation on muscle mass, muscle performance and functional capacity in subjects undergoing total knee arthroplasty: a systematic review of randomized clinical trials

The aim of the present study was to summarize the effectiveness of amino acid supplementation on muscle strength, muscle volume, and functional capacity in patients undergoing total knee arthroplasty. For this, in November 2022, a search was carried out in the PubMed, Cochrane Library, and EMBASE databases, identifying a total of 2182 documents, of which only 4 were included in the present review. The included studies had 148 participants (47 men and 101 women), with a minimum age of 53 and a maximum of 92 years, and supplementation times of 13 to 30 days (1 to 3 times a day). For the results, in relation to muscle performance, when comparing the control and experimental groups, greater muscle atrophy was observed in the pre- and post-moments of the control group, in relation to the experimental group. In addition, studies suggest a good tendency for muscle mass gain, and improvement in the functional capacities of patients who used supplementation. Therefore, the use of amino acids after TKA surgery reduces muscle atrophy, which preserves muscle mass and leads to better performance in tests of strength and functional capacity, when compared to the use of a placebo.