About this trial
This multicenter randomized controlled trial will evaluate whether an additional preoperative study visit using the Dialogue Support (DS) tool improves patient information, expectations, and outcomes among adults scheduled for lumbar spine surgery for degenerative spinal disorders.
The DS tool predicts outcomes one year after surgery based on patient characteristics and presents these estimates numerically and visually. Participants will be randomized to either one additional study visit in which DS results are presented and explained, or a control study visit during which DS will not be employed The study will assess whether the additional DS study visit influences postoperative outcomes, preoperative expectations, surgery cancellations, and cost-effectiveness. In addition, the project will externally validate the DS tool using data from the Norwegian Registry for Spine Surgery (NORspine) and assess the inter-rater reliability of DS assessments across spine surgeons.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Disc herniation
Spinal stenosis
Degenerative disc disease.
Disqualifiers
Patients who do not understand spoken or written Norwegian will be excluded, as language barriers may interfere with the intervention consultation, comprehension of the information provided, and completion of study questionnaires.
Patients with spondylolysis or lytic spondylolisthesis
Patients already participating in other clinical studies.
Trial design
Parallel
Treatments tested in this trial
Dialogue Support Study Visit
BehavioralThis study visit will be scheduled approximately 2-6 weeks prior to surgery. It will occur in the outpatient clinic and is expected to last approximately 30 to 40 minutes. It will be conducted in person to facilitate communication. During the study visit, the DS results are presented and explained to the patient.
Treatment groups
Trial outcomes
Primary outcomes
Oswestry Disability Index (ODI)
Disability measured using the Oswestry Disability Index (ODI), ranging from 0 to 100, with higher scores indicating greater disability. Mean ODI scores will be compared between the intervention and control groups.
Secondary outcomes
Successful Outcome According to Global Perceived Effect (GPE)
Proportion of participants achieving a successful outcome, defined as GPE grade 1 (completely recovered) or grade 2 (much better). The proportion of successful outcomes will be compared between groups.
≥30% Improvement in Oswestry Disability Index (ODI)
Proportion of participants achieving at least a 30% improvement in ODI score from baseline.
Oswestry Disability Index (ODI)
Mean ODI scores will be compared between groups.
Patient Expectations for Postoperative Disability
Patient expectations assessed preoperatively as the expected postoperative ODI score. Mean expected ODI scores will be compared between groups.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University Hospital, Akershus
Lead sponsor
Sykehuset Innlandet HF
Collaborator