Physical therapy in patients with rheumatoid arthritis and axial spondyloarthritis: the patients' perspective.

OBJECTIVE: To assess the duration, frequency, and content of individual physical therapy (PT) in patients with rheumatoid arthritis (RA) or axial spondyloarthritis (axSpA). METHOD: In this cross-sectional study, an electronic questionnaire aimed at people with RA and axSpA was distributed through various communication channels of the Dutch Arthritis Foundation. It comprised questions on sociodemographic and health characteristics, received PT (currently and/or in the past year) and, if applicable, its duration, frequency, and content (active exercises, manual treatment, physical modalities, and/or counselling/education). RESULTS: The study included 257 and 94 patients with self-reported diagnoses of RA and axSpA, of whom 163 (63%) and 77 (82%) currently or had recently received individual PT. The duration of individual PT was long-term (> 3 months) in 79% of RA and 83% of axSpA patients, with an average frequency of once per week in most. Although active exercises and counselling/education were each reported by ≥ 73% of the patients with RA and axSpA who received long-term individual PT, passive treatment modalities were also often offered (≥ 89%), in particular massage, kinesiotaping, and/or passive mobilization. The same pattern was seen in patients receiving short-term PT. CONCLUSION: The majority of patients with RA and axSpA received PT currently or in the past year, usually individually, long-term, and at a frequency of once a week. Although active exercises and education are recommended in guidelines, passive treatment options that are not advised were relatively often reported. An implementation study to identify barriers and facilitators regarding adherence to clinical practice guidelines seems warranted.

Construct validity of the PROMIS PF-10 in patients with inflammatory rheumatic diseases and severe limitations in physical functioning.

OBJECTIVE: Assessing the construct validity of the Patient-Reported Outcomes Measurement Information System Physical Function 10-Item Short Form (PROMIS PF-10) in a subpopulation of rheumatoid arthritis (RA) or axial spondyloarthritis (axSpA) patients with severe limitations in physical functioning (PF). METHOD: RA/axSpA patients with severe functional limitations completed the PROMIS PF-10, Health Assessment Questionnaire - Disability Index (HAQ-DI for RA) or Bath Ankylosing Spondylitis Functional Index (BASFI for axSpA), 36-item Short Form Health Survey (SF-36), EuroQol 5-dimensions 5-level (index score, EQ-VAS), and performed the Six-Minute Walk Test (6MWT). Construct validity was assessed by computing Spearman rank or Pearson correlation coefficients and testing hypotheses about correlations between the PROMIS PF-10 and measures of PF and quality of life. RESULTS: Data from 316 patients (180 RA/136 axSpA, 91.7%/47.8% female, mean ± sd age 58.6 ± 13.2/54.0 ± 11.3 years) were analysed. The median (IQR) PROMIS PF-10 score was 34.5 (31.4-37.6) in RA and 36.0 (32.8-38.3) in axSpA patients. The PROMIS PF-10 correlated strongly with the HAQ-DI, BASFI, and EQ-5D-5L index score (r > 0.6), moderately with the SF-36 Physical Component Summary score, EQ-VAS, and 6MWT (0.30 ≤ r ≤ 0.60), and weakly with the SF-36 Mental Component Summary score (r < 0.30). Five of six hypotheses (83%) were confirmed in both groups. CONCLUSION: The overall strong correlation of the PROMIS PF-10 with measures of PF and moderate to weak correlations with outcomes measuring different constructs were confirmed in subpopulations of RA and axSpA patients with severe functional limitations, supporting its construct validity.