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Corticosteroid injections for lateral epicondylitis: a systematic overview
Summary
Corticosteroid injections offer short-term relief for tennis elbow (lateral epicondylitis) but lack conclusive evidence for long-term effectiveness. Further research is needed to determine optimal treatment protocols for this common condition.
Area of Science:
- Orthopedics
- Sports Medicine
- Musculoskeletal Disorders
Background:
- Lateral epicondylitis, commonly known as tennis elbow, is a frequent cause of elbow pain.
- Corticosteroid injections are a prevalent treatment, yet evidence on their efficacy and safety is limited.
- Optimal injection timing and fluid composition remain unclear.
Purpose of the Study:
- To systematically review randomized clinical trials (RCTs) assessing corticosteroid injection effectiveness for lateral epicondylitis.
- To evaluate short-term and long-term outcomes and adverse effects.
Main Methods:
- Systematic review of RCTs identified through MedLine and Embase databases (1966-1994).
- Inclusion criteria: RCTs, corticosteroid injections, lateral epicondylitis diagnosis, English/German/Dutch publications.
- Methodological quality assessed using a standardized criteria list.
Main Results:
- Twelve RCTs were included, with a median methodological score of 40 (poor to moderate quality).
- Pooled analysis showed short-term effectiveness (2-6 weeks) with an odds ratio of 0.15 (95% CI 0.10-0.23).
- No significant long-term differences were observed; better quality studies yielded more favorable results. Optimal injection parameters were not determined.
Conclusions:
- Evidence for corticosteroid injections in tennis elbow is inconclusive due to methodological flaws and heterogeneity in trials.
- Injections appear safe and effective for short-term symptom relief (2-6 weeks).
- Further high-quality trials in general practice settings are necessary to address unanswered questions regarding optimal treatment protocols.