Longitudinal observational study on health literacy and clinical outcomes in older adults with total knee arthroplasty in the context of inpatient and outpatient rehabilitation

Purpose

To assess health literacy (HL) of patients with total knee arthroplasty (TKA) and evaluate its impact on patient reported outcome measures (PROMs) as well as investigating outcome differences in inpatient and outpatient rehabilitation.

Methods

In this study, HL and PROMs of older patients were assessed preoperatively (T0) and after 3 (T1), 6 (T2), and 12 (T3) months. HL was assessed with the short form of the European HL Questionnaire; pain scores, functional restrictions, and activity levels with standardized PROMs.

Results

Limited HL was observed in 70.6% of patients at T0. HL improved from baseline to follow-ups (p < 0.001). There was no impact of HL on PROMs. Pain scores were higher in patients undergoing outpatient rehabilitation (p = 0.022). No differences were found between the rehabilitation settings for the other outcomes.

Conclusion

The study shows that limited HL is prevalent in patients with scheduled TKA. Rehabilitation seems to have a positive effect on increasing HL.

Health literacy and clinical outcomes in patients with total knee arthroplasty in different rehabilitation settings: An exploratory prospective observational study

BACKGROUND

Limited health literacy is associated with negative clinical outcomes. Although research on health literacy has increased in recent years, there is still a lack of evidence for orthopaedic patients undergoing joint replacement and in the rehabilitation sector.

OBJECTIVES

The aims of this study were to assess health literacy of patients undergoing total knee arthroplasty (TKA) and to observe its course during rehabilitation. Furthermore, we aimed to investigate associations between health literacy and clinical outcomes as well as differences regarding rehabilitation settings.

METHODS

In this prospective observational study, data about (n = 92) patients' health literacy and clinical outcomes were collected. Baseline assessments were conducted preoperatively (T0) and followed-up after three (T1) and six (T2) months. Health literacy was assessed with the European Health Literacy Questionnaire, pain scores, functional restrictions and activity levels with standardised patient-reported outcome measures (PROMs). Subgroup analyses were conducted regarding inpatient and outpatient rehabilitation.

RESULTS

Out of 92 patients, 77 completed postoperative rehabilitation between T0 and T1. Health literacy improved from T0 to T1 (p < 0.001) and subsequently remained constant until T2. Although the study showed an average improvement in health literacy scores in post-discharge rehabilitation, subgroup analyses indicated that patients did not achieve higher levels of health literacy. Pain scores were higher in patients undergoing outpatient rehabilitation (p = 0.022). No differences were found in other outcomes regarding rehabilitation settings and health literacy.

CONCLUSIONS

Based on our results, there seems to be no association between health literacy and clinical outcomes. Furthermore, the results regarding health literacy over the rehabilitation period indicated a need for enhancement of educational strategies to strengthen health literacy in the context of inpatient and outpatient orthopaedic rehabilitation.