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Bottom line
Delivering guideline-based education and supervised neuromuscular exercise in routine clinical practice was associated with reduced pain, better quality of life, and less painkiller use and sick leave in knee and hip OA, but the absence of a control group means the benefits are likely overestimated.
Moderate evidencePublished
Evidence hierarchy
Study participants
Danish adults with knee and/or hip osteoarthritis symptoms enrolled in the national GLA:D registry, 2013-2015
Study Summary
This registry-based study reports nationwide results from the Good Life with osteoArthritis in Denmark (GLA:D) initiative, which translates clinical guidelines for knee and hip osteoarthritis into routine care via a 2-day physiotherapist course plus 8 weeks of patient education and supervised neuromuscular exercise. Among 9,825 registry participants (8,894 eligible for follow-up), pain intensity improved by 12.4 points at 3 months and 13.7 points at 12 months, and joint-related quality of life improved by 5.4 and 9.4 points, respectively. Fewer patients took painkillers after treatment and fewer were on sick leave at 12 months versus the year before. Without a control group the authors note effect sizes are likely overestimated, but they conclude that guideline-based education and exercise can be delivered in real-world clinical practice with meaningful benefits.
Key Findings
| Finding | Detail | Impact |
|---|---|---|
| Pain intensity improved after education and exercise | On a 0-100 VAS, crude/adjusted mean improvement was 12.4 mm (95% CI 11.8 to 13.1) at 3 months and 13.7 mm (95% CI 12.6 to 14.9) at 12 months. Improvements were larger for knee OA than hip OA. | High |
| Joint-related quality of life improved | KOOS/HOOS QOL subscale (0-100, worst to best) improved by an adjusted 5.4 points (95% CI 5.0 to 5.9) at 3 months and 9.4 points (95% CI 8.6 to 10.2) at 12 months, indicating effects were maintained or further improved at 1 year. | High |
| Fewer patients took painkillers after treatment | From baseline to 3 months, the proportion taking acetaminophen, NSAIDs or opioids fell from 55.9% to 36.7% in knee OA (risk reduction 19.2%, P<0.0001) and from 58.1% to 44.7% in hip OA (risk reduction 13.4%, P<0.0001). | High |
| Fewer patients were on sick leave at 12 months | Among labour-market participants (n=711), the risk of sick leave fell from 24.3% at baseline to 14.9% at 12 months (risk reduction 9.4%, P<0.0001) compared with the year prior to GLA:D. | Medium |
| Objective physical function improved at 3 months | Adjusted improvements of 2.3 (95% CI 2.2 to 2.4) more chair-stands in 30 s and 2.5 seconds (95% CI 2.3 to 2.7) faster on the 40-m walk test from baseline to 3 months. | Medium |
| Physical activity improved only in the short term | Odds of being more physically active were significantly higher at 3 months (OR 1.18, 95% CI 1.10 to 1.27, P<0.0001) but not at 12 months (OR 1.10, 95% CI 0.99 to 1.23, P=0.09). | Medium |
| Nationwide rollout achieved but municipal uptake remained low | 286 active GLA:D units operated across all five Danish regions (one unit per ~3,229 citizens with self-reported OA), but only 20% of municipalities (where care is free to patients) offered GLA:D; most units were private clinics where patients pay 60-100% of costs. | Medium |
On a 0-100 VAS, crude/adjusted mean improvement was 12.4 mm (95% CI 11.8 to 13.1) at 3 months and 13.7 mm (95% CI 12.6 to 14.9) at 12 months. Improvements were larger for knee OA than hip OA.
KOOS/HOOS QOL subscale (0-100, worst to best) improved by an adjusted 5.4 points (95% CI 5.0 to 5.9) at 3 months and 9.4 points (95% CI 8.6 to 10.2) at 12 months, indicating effects were maintained or further improved at 1 year.
From baseline to 3 months, the proportion taking acetaminophen, NSAIDs or opioids fell from 55.9% to 36.7% in knee OA (risk reduction 19.2%, P<0.0001) and from 58.1% to 44.7% in hip OA (risk reduction 13.4%, P<0.0001).
Among labour-market participants (n=711), the risk of sick leave fell from 24.3% at baseline to 14.9% at 12 months (risk reduction 9.4%, P<0.0001) compared with the year prior to GLA:D.
Adjusted improvements of 2.3 (95% CI 2.2 to 2.4) more chair-stands in 30 s and 2.5 seconds (95% CI 2.3 to 2.7) faster on the 40-m walk test from baseline to 3 months.
Odds of being more physically active were significantly higher at 3 months (OR 1.18, 95% CI 1.10 to 1.27, P<0.0001) but not at 12 months (OR 1.10, 95% CI 0.99 to 1.23, P=0.09).
286 active GLA:D units operated across all five Danish regions (one unit per ~3,229 citizens with self-reported OA), but only 20% of municipalities (where care is free to patients) offered GLA:D; most units were private clinics where patients pay 60-100% of costs.
Strengths
- Very large, nationwide registry sample (9,825 participants) reflecting real-world clinical practice rather than a controlled trial setting
- Combination of objectively measured, therapist-reported and patient-reported outcomes (e.g., chair-stand and 40-m walk tests alongside VAS and KOOS/HOOS)
- Standardized, guideline-based intervention with certified physiotherapists and mandatory data submission supporting consistency of care
- Sensitivity analyses excluding patients who underwent joint replacement, with adjusted models controlling for baseline score, gender, age and BMI
- Demonstrates that RCT findings on education and exercise can be translated into routine clinical care at a national scale
Limitations
- No control group, so improvements cannot be causally attributed to GLA:D and likely overestimate the specific treatment effect
- Follow-up was incomplete: of those eligible, 84% attended the 3-month and 68% the 12-month follow-up; complete baseline/3/12-month data for 65%
- Physical activity was self-reported (known to be biased) and 62% of participants were already meeting activity recommendations at baseline, limiting room for improvement
- Patients who discontinued had lower education, more pain and higher BMI, suggesting selective dropout that may affect generalizability
- Registry data collected across many clinics introduces variation in treatment protocols and data-collection procedures; sick-leave analysis was based on a small subgroup (n=711)
Key Takeaways for Patients
What This Means for You
- 01A structured program of patient education plus supervised exercise can reduce knee and hip osteoarthritis pain and improve quality of life, with benefits lasting up to a year.
- 02Many patients in this program were able to cut back on painkillers (acetaminophen, NSAIDs or opioids) after treatment.
- 03Exercise carries far fewer serious side effects than pain medications and can be appropriate even for people with moderate to severe osteoarthritis.
- 04The education component is thought to help people keep exercising long-term by teaching self-management and correcting fears that exercise harms the joint.
- 05Because the study had no comparison group, the size of the benefit may be overstated, but the direction of the results is encouraging and reflects real-world clinical care.
Read the Full Paper
Access the complete peer-reviewed study from BMC Musculoskeletal Disorders
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