Knee OA Injections: Why They Are a Short-Term Fix (2026 CMAJ Article)
- The Review Course in Family Medicine
- Jun 20
- 1 min read
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Injections Alone Aren't Adequate: You Need A Joint Approach
Do your patients believe a knee injection will fix their arthritis forever? A fresh 2026 CMAJ review clarifies that intra-articular glucocorticoids are strictly a short-term pain management strategy. They provide about 2 to 6 weeks of relief rather than any lasting structural modification. This distinction matters deeply for patient expectations.
The article tells us we need to frame these injections as an adjunct to your standard care rather than the main event. The data suggests that for long-term symptom control, injections must be paired with disease education, weight management, and exercise. Alone, they are but a brief band-aid.
Procedure pearls:
Use sterile technique to prevent septic arthritis
Choose a 25-gauge 1.5-inch needle to minimize trauma
Mix with up to 2 mL of lidocaine for immediate analgesic effects
Different approaches have similar accuracy
For the MCQ-SAMP: When you see a question regarding knee pain, ensure you identify osteoarthritis correctly. If a patient returns with a hot, red, swollen joint post-injection, the distractor is to assume it is a flare. The high-yield exam answer is to rule out septic arthritis first.
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