The R³ trial is a multicentre cluster randomized controlled trial evaluating an evidence-based, person-centred rehabilitation pathway for patients undergoing lumbar surgery for radicular pain. The pathway includes structured pre-, peri-, and postoperative rehabilitation, early postoperative mobilization, case management, early return-to-work (RTW) guidance, and patient empowerment. Clusters (hospitals) are randomized to implement the R³ pathway (intervention) or continue usual care (control). The primary aim is to determine whether the R³ pathway reduces time to return to work compared with usual care.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
480
A structured evidence-based rehabilitation pathway, guided by a case manager, starting preoperatively to 1 year postoperatively, including prehabilitation, perioperative rehabilitation and postoperative rehabilitation, with emphasis on fear reduction by keeping activity restrictions minimal and relevant, eliminating bracing and on active guidance to work resumption.
ZAS
Antwerp, Belgium
AZ Sint Jan Brugge
Bruges, Belgium
UZ Brussel
Brussels, Belgium
Grand Hôpital de Charleroi
Charleroi, Belgium
Ziekenhuis Geel
Geel, Belgium
ZOL Genk
Genk, Belgium
Jessa Ziekenhuis
Hasselt, Belgium
AZ Herentals
Herentals, Belgium
Jan Yperman ziekenhuis
Ieper, Belgium
AZ Groeninge Kortrijk
Kortrijk, Belgium
...and 6 more locations
Time to Return To Work (RTW)
Time to return to work, defined as at least 50% of the contractional work time before surgery (with a sustainable return to work being defined as remaining actively working for three months following work resumption). Outcome type: Time-to-event (days) Range: 0 to 450 days Interpretation: Shorter time indicates a better outcome
Time frame: Assessed from surgery to 15 months postoperatively
Disability
Disability scores assessed by the Oswestry Disability Index (ODI) at 3 months and 1 year postoperatively (key-secondary) Scale range: 0-100 points Interpretation: Higher scores indicate greater disability (worse outcome)
Time frame: 3 months and 12 months postoperatively
Percentage of patients returned to work
Percentage of patients returned to work at 4 weeks, 3 months and 1 year postoperatively Scale range: 0-100% Interpretation: Higher percentages indicate a better outcome
Time frame: 4 weeks, 3 months and 1 year postoperatively
Patient-centered functional status
Patient-centered functional status assessed by the Patient-Specific Functional Scale (PSFS) at 4 weeks, 3 months and 1 year postoperatively Scale range: 0-10 per activity (mean score calculated) Interpretation: Higher scores indicate better functional ability
Time frame: 4 weeks, 3 months and 1 year postoperatively
Back pain
Back pain measured with the Numeric Rating Scale (NRS) at 4 weeks, 3 months and 1 year postoperatively Scale range: 0-10 0 = no pain 10 = worst imaginable pain Interpretation: Higher scores indicate more severe pain (worse outcome)
Time frame: 4 weeks, 3 months and 1 year postoperatively
Leg pain
Leg pain measured with the Numeric Rating Scale (NRS) at 4 weeks, 3 months and 1 year postoperatively Scale range: 0-10 0 = no pain 10 = worst imaginable pain Interpretation: Higher scores indicate more severe pain (worse outcome)
Time frame: 4 weeks, 3 months and 1 year postoperatively
Health-related quality of life
EuroQoL 5D (EQ5D-5L) for measuring health-related quality of life at 4 weeks, 3 months and 1 year postoperatively Index score range: From \<0 (health states worse than death) to 1.0 (full health) Interpretation: Higher scores indicate better health-related quality of life
Time frame: 4 weeks, 3 months and 1 year postoperatively
Work productivity
Work productivity measured with the IMTA Productivity Cost Questionnaire (iPCQ) at 4 weeks, 3 months and 1 year postoperatively Scale: Multiple items assessing absenteeism and presenteeism Range: Item-specific (continuous variables expressed in days or hours) Interpretation: Higher productivity loss indicates a worse outcome
Time frame: 4 weeks, 3 months and 1 year postoperatively
Analgesics use
Analgesics use, quantified by the Medication Quantification Scale (MQS) at 4 weeks, 3 months and 1 year postoperatively Scale range: 0 to no predefined maximum (higher scores reflect greater medication burden) Interpretation: Higher scores indicate greater analgesic use (worse outcome)
Time frame: 4 weeks, 3 months and 1 year postoperatively
Kinesiophobia
Kinesiophobia measured by the Tampa Scale for Kinesiophobia (TSK) at 4 weeks, 3 months and 1 year postoperatively Scale range: 17-68 Interpretation: Higher scores indicate greater fear of movement (worse outcome)
Time frame: 4 weeks, 3 months and 1 year postoperatively
Pain catastrophizing
Pain catastrophizing measured by the Pain Catastrophizing Scale (PCS) at 4 weeks, 3 months and 1 year postoperatively Scale range: 0-52 Interpretation: Higher scores indicate greater pain catastrophizing (worse outcome)
Time frame: 4 weeks, 3 months and 1 year postoperatively
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