NICE guidelines recommend considering interventions to help those who've been absent from work for 4 weeks or more because of a musculoskeletal condition to return to work. This might involve problem-solving therapy, and/or a programme of graded activity provided by a suitably qualified individual. Other examples of steps that may be taken include a worksite assessment of work task suitability and adjustments that could be made, and also discussion with the person's line manager about any changes to the workplace that could be made to help overcome hurdles that are preventing a return to work.
Cite this: Dr Rob Hicks. Quiz: Fit Notes, Long-term Sickness, and Work Capability - Medscape - Jan 24, 2020.