Treatment for Lateral Epicondylitis (Tennis Elbow)
The cornerstone of treatment for lateral epicondylitis should be conservative management consisting of relative rest, cryotherapy (ice applications through a wet towel for 10-minute periods), and eccentric strengthening exercises, as approximately 80% of patients fully recover within 3-6 months with this approach 1.
Initial Conservative Management (First-Line Treatment)
Core Treatment Components
Relative rest and activity modification: Reduce repetitive wrist extension and gripping activities that load the damaged tendon. Avoid complete immobilization to prevent muscle atrophy 1.
Cryotherapy: Apply melting ice water through a wet towel for 10-minute periods repeatedly for acute pain relief 1.
Eccentric strengthening exercises: This is the most evidence-based rehabilitation approach and may reverse degenerative tendon changes 1. These exercises should be the foundation of your physical therapy prescription.
Pain Management Options
For short-term pain relief (acute phase):
NSAIDs (topical or oral) are effective for acute pain relief but provide no long-term benefit 1. Topical NSAIDs may have fewer systemic side effects 1.
Corticosteroid injections may be more effective than oral NSAIDs for acute-phase pain relief, but they do not alter long-term outcomes and should be used with caution 1. Important caveat: Injecting corticosteroids directly into the tendon substance may cause deleterious effects, reduce tensile strength, and predispose to spontaneous rupture 1. If used, inject peritendinously, not intratendinously.
Adjunctive Therapies (Uncertain Benefit)
Bracing/orthotics (tennis elbow bands): Safe and widely used, though evidence for effectiveness is limited. Use based on clinical experience and patient preference 1.
Extracorporeal shock wave therapy (ESWT): Appears safe and effective but expensive, with mixed evidence for lateral epicondylitis specifically 1.
Therapeutic ultrasound, iontophoresis, phonophoresis: Uncertain benefit with weak evidence 1.
Refractory Cases (Failed Conservative Management)
Biologic Injections (Consider After 3-6 Months)
For patients not responding to initial conservative measures, consider:
Platelet-rich plasma (PRP) or autologous blood injections: May offer longer-term benefits compared to corticosteroids 2, 3, though evidence shows mixed results with some studies showing superiority and others showing inferiority to corticosteroids 2.
Prolotherapy: Superior to placebo but not to corticosteroids 2.
Botulinum toxin A: Superior to placebo but not to corticosteroids, and likely produces concomitant extensor weakness 2.
Surgical Management (Last Resort)
Surgery should be reserved for carefully selected patients who have failed 3-6 months of conservative therapy 1.
Surgical Options
Multiple techniques exist with success rates exceeding 80-90% 4:
Arthroscopic debridement: Allows examination and treatment of concomitant intra-articular pathology, minimal disruption of superficial extensors, and quick symptom resolution 5, 6. Preferred for surgeons experienced in elbow arthroscopy 6.
Open or percutaneous release: Reasonable alternatives, not definitively superior or inferior to arthroscopic approach 5, 7, 6.
Tendon repair: Consider for high-grade tears involving ≥50% of tendon thickness rather than debridement alone 4.
Common Pitfalls to Avoid
Do not inject corticosteroids directly into the tendon substance—only peritendinously to avoid tendon weakening and rupture risk 1.
Do not rely on corticosteroids for long-term management—they provide only short-term relief without altering outcomes 1, 2.
Do not proceed to surgery prematurely—the condition is self-limited in 80% of cases, typically resolving over 12-18 months 2, 7.
Do not use complete immobilization—this causes muscle atrophy and deconditioning 1.
Clinical Algorithm
- Initial presentation: Start relative rest, ice, eccentric exercises, ± NSAIDs for pain
- Persistent symptoms at 6-12 weeks: Continue exercises, consider bracing, consider PRP/autologous blood injection
- Refractory at 3-6 months: Consider surgical evaluation if symptoms significantly impact quality of life
- Surgical candidates: Arthroscopic or open debridement ± tendon repair based on tear severity and surgeon experience