Development of a Physiotherapist-Coordinated Interdisciplinary Rehabilitation Intervention for People with Suspected Axial Spondyloarthritis: The SPINCODE Rehabilitation Intervention

<b>Background</b>: People with early axial spondyloarthritis experience a diagnostic delay and a similar disease burden as people with axial spondyloarthritis at a later stage of the disease. In many European countries, patients with early axial spondyloarthritis do not have access to an interdisciplinary rehabilitation team. The objective of this study was to develop a new evidence-based physiotherapist-coordinated interdisciplinary rehabilitation intervention for individuals suspected of axial spondyloarthritis. This development of the rehabilitation intervention is part of the SPINCODE project which focusses on early diagnosis and treatment for people with axial spondyloarthritis. <b>Methods</b>: The development of the intervention encompasses: (i) identifying the evidence base and program theories; (ii) modeling and remodeling the intervention; and (iii) describing the developed intervention. <b>Results</b>: The six-month SPINCODE rehabilitation intervention is a physiotherapist-coordinated, interdisciplinary, outpatient rehabilitation intervention at a specialized rheumatology hospital. The intervention consists of: (i) individual physiotherapist-coordinated consultations with assessment, goal setting, tailored physical activity support, and the defined goals, and coordination across the interdisciplinary team at the hospital and across primary and secondary healthcare levels; (ii) group sessions, encompassing patient education and peer support; and (iii) optional individual support from the interdisciplinary team. Physiotherapists from private care working with the patient enrolled in the SPINCODE study are offered digital support from the hospital-based physiotherapists. <b>Conclusions</b>: The developed physiotherapist-led interdisciplinary SPINCODE rehabilitation intervention is ready for feasibility testing.