This single-arm feasibility study evaluated the STRIDE rehabilitation program in 15 adults aged ≥50 years awaiting surgery for lumbar spinal stenosis. The 24-week program combined pre- and post-operative components targeting knowledge, expectations, physical capability, and fears. No comparator group was included in this feasibility design.
For feasibility outcomes, recruitment was 48% (15 of 31 eligible participants) and retention was 80%. Acceptability measured by the Theoretical Framework of Acceptability questionnaire showed a median score of 5/5 (IQR 0), indicating high acceptability. Secondary outcomes showed pre-operative improvements of +49.9 meters in 6-minute walk distance and +868 steps/day in daily step count, with post-operative improvements reaching +81.6 meters and +1405 steps/day respectively.
Safety data on adverse events were not reported. Three participants discontinued (2 decided against surgery, 1 unable to complete final assessment). Key limitations include the single-arm design, small sample size of 15 participants, and reported travel burden for participants. The study was not designed to test efficacy and cannot establish causality for the observed improvements.
These preliminary findings support progression to a future controlled trial but provide no evidence of efficacy. The high acceptability and feasibility metrics suggest the STRIDE program warrants further investigation in a more rigorous study design with appropriate controls.
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BackgroundLumbar spinal stenosis (LSS) can cause pain and severe walking limitation. Although surgery aims to improve walking, many patients do not achieve clinically meaningful gains. Rehabilitation can improve outcomes, yet existing programmes lack robust evidence and theoretical underpinning. This study aimed to (1) co-design a theory-informed rehabilitation programme to improve walking after LSS surgery, and (2) evaluate feasibility of conducting a future trial and acceptability of the intervention.
MethodsA multi-methods study included intervention co-design followed by a single-arm feasibility study. Co-design used an adapted Experience-Based Co-Design approach with patients, carers, and healthcare professionals (n=39), integrating the Behaviour Change Wheel. This resulted in STructured Rehabilitation and InDividualised Exercise and Education (STRIDE), delivered over 12-week pre- and 12-weeks post-surgery, targeting knowledge, expectations, perceived control, physical capability, and fears. Adults aged [≥]50 years awaiting LSS surgery were recruited to a before-after feasibility study. Feasibility outcomes included recruitment and retention. Acceptability was assessed using the Theoretical Framework of Acceptability questionnaire (0-5 (high acceptability)) and focus groups. Clinical outcomes measured at baseline, post-prehabilitation, and post-rehabilitation included 6-minute walk distance (6MWD) and mean daily step count over 7 days.
ResultsFifteen of 31 eligible participants were recruited (48%; mean age 70 years), with 80% retained to study end (2 decided against surgery, 1 unable to complete final assessment). Acceptability was high (median 5/5, IQR 0). Participants valued the personalised, supportive approach and reported improved motivation and preparation for surgery, though travel was burdensome. Small pre-operative and moderate-to-large post-operative improvements were observed in 6MWD (+49.9 m and +81.6 m) and daily step count (+868 and +1405 steps/day).
ConclusionsThis co-designed, physiotherapy-led, behaviour-change rehabilitation programme was acceptable to participants, with encouraging recruitment, retention, and signals of improved walking following LSS surgery. The findings support progression to a future trial.