Fidelity assessment of nurse-led non-pharmacological package of care for knee pain in the package development phase of a feasibility randomised controlled trial based in secondary care: A mixed methods study

Nomikos, Polykarpos Angelos; Hall, Michelle; Fuller, Amy; Millar, Bonnie; Ogollah, Reuben; Valdes, Ana; Doherty, Michael; Walsh, David A.; Das Nair, Roshan; Abhishek, A.

Abstract

Objectives To evaluate fidelity of delivery of a nurse-led non-pharmacological complex intervention for knee pain. Setting Secondary care. Single-centre study. Study design Mixed methods study. Participants Eighteen adults with chronic knee pain. Inclusion criteria Age >40 years, knee pain present for longer than 3 months, knee pain for most days of the previous month, at least moderate pain in two of the five domains of Western Ontario and McMaster Universities Osteoarthritis Index pain scale. Interventions Nurse-led non-pharmacological intervention comprising assessment, education, exercise, use of hot/cold treatments, footwear modification, walking aids and weight-loss advice (if required). Outcome(s) Primary: fidelity of delivery of intervention, secondary: nurses' experience of delivering intervention. Methods Each intervention session with every participant was video recorded and formed part of fidelity assessment. Fidelity checklists were completed by the research nurse after each session and by an independent researcher, after viewing the video-recordings blinded to nurse ratings. Fidelity scores (%), percentage agreement and 95% Confidence Intervals (CI) were calculated. Two semi-structured interviews were conducted with the research nurse. Results Fourteen participants completed all visits. 62 treatment sessions took place. Nurse self-report and assessor video rating scores for all 62 treatment sessions were included in fidelity assessment. Overall fidelity was higher on nurse self-report (97.7%) than on objective video-rating (84.2%). Percentage agreement between nurse self-report and video-rating was 73.3% (95% CI 71.3 to 75.3). Fidelity was lowest for advice on footwear and walking aids. The nurse reported difficulty advising on thermal treatments, footwear and walking aids, and did not feel confident negotiating achievable and realistic goals with participants. Conclusions A trained research nurse can deliver most components of a non-pharmacological intervention for knee pain to a high degree of fidelity. Future research should assess intervention fidelity in a routine clinical setting, and examine its clinical and cost-effectiveness. Trial registration number NCT03670706.

Citation

Nomikos, P. A., Hall, M., Fuller, A., Millar, B., Ogollah, R., Valdes, A., …Abhishek, A. (2021). Fidelity assessment of nurse-led non-pharmacological package of care for knee pain in the package development phase of a feasibility randomised controlled trial based in secondary care: A mixed methods study. BMJ Open, 11(7), Article e045242. https://doi.org/10.1136/bmjopen-2020-045242

• Journal Article Type: Article
• Acceptance Date: Jul 16, 2021
• Online Publication Date: Jul 29, 2021
• Publication Date: Jul 29, 2021
• Deposit Date: Jul 30, 2021
• Publicly Available Date: Jul 30, 2021
• Journal: BMJ Open
• Electronic ISSN: 2044-6055
• Publisher: BMJ Publishing Group
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 7
• Article Number: e045242
• DOI: https://doi.org/10.1136/bmjopen-2020-045242
• Public URL: https://nottingham-repository.worktribe.com/output/5891188
• Publisher URL: https://bmjopen.bmj.com/content/11/7/e045242