Tennis Elbow (Lateral Epicondylitis) - Treatment, Management & Physiotherapy

Overview and Pathology

• Campbell's Operative Orthopaedics 15th Ed 2026

Clinical Diagnosis

• Tenderness typically 5 mm distal and anterior to the midpoint of the lateral epicondyle
• Pain reproduced by resisted wrist dorsiflexion and forearm supination
• Pain on grip (e.g., handshake, opening a jar)
• Coexists with radial tunnel syndrome in ~5% of cases - distinguish by noting that radial tunnel pain is 3-4 cm distal to the epicondyle and reproduced by long finger extension against resistance

• Radial tunnel syndrome (most common mimic)
• Osteochondritis dissecans of the capitellum
• Lateral compartment arthrosis
• Varus instability
• Brachioradialis tendinitis

Nonoperative Treatment

1. Activity Modification and Relative Rest

• Avoid repetitive pronation/supination with elbow near full extension
• Modify sport technique, equipment (racquet grip size, string tension)
• Ergonomic workplace assessment for laborers

2. Ice / NSAIDs

• Short-term ice application reduces acute pain
• Oral NSAIDs provide some analgesic benefit (Cochrane evidence: mild benefit, not superior to other modalities long-term)

3. Counterforce (Epicondyle) Brace

• A forearm band worn 2-3 cm distal to the epicondyle disperses forces at the tendon origin
• Evidence is mixed but widely used as a low-risk adjunct

Physiotherapy

Stretching

• Wrist extensor stretch: Elbow fully extended, wrist passively flexed by opposite hand - hold 30 seconds, repeat 3-5x, several times daily
• Forearm stretching is used both alone and in combination with other treatments

Strengthening Exercises (Most Evidence-Based Component)

• Isometric wrist extension with elbow at 90° - hold 30-45 seconds, 5 repetitions
• Recent evidence (2018, Journal of Hand Therapy) shows eccentric-concentric combined with a sustained 45-second isometric hold produces the largest short-term improvements in pain and function

• Eccentric wrist extension: Wrist elevated (extended), slowly lower against gravity or light resistance - 3 sets of 10-15 reps, progressing load over weeks
• Tyler Twist (Flexbar): The most evidence-supported exercise device for tennis elbow. A rubber resistance bar is twisted using both hands; the affected wrist eccentrically decelerates the return. RCTs (Peterson et al. 2011, 2014) showed significant pain and strength gains vs controls
• Exercise done in two elbow positions: 90° flexion and full extension (180°)
• Program progresses over 6-12 weeks

• Progressive strengthening into functional wrist and forearm patterns
• Return-to-sport criteria: pain-free grip, symmetrical forearm strength

Manual Therapy

• Soft-tissue mobilization, deep transverse friction massage (Cyriax technique) to the ECRB tendon
• Mulligan's mobilization with movement (MWM) of the elbow - RCT evidence supports short-term pain relief and improved grip
• Joint manipulation

Electrophysical Modalities

• Therapeutic ultrasound - evidence equivocal; some benefit for pain modulation
• Iontophoresis (topical NSAID or steroid delivered via electrical current) - short-term benefit
• TENS / electrical stimulation - adjunct for pain relief
• Laser therapy - some studies report benefit; high-intensity laser may offer slightly more benefit than ESWT

Kinesio Taping

• Not superior to placebo in RCT evidence; no conclusive benefit shown
• Campbell's Operative Orthopaedics 15th Ed 2026; Textbook of Family Medicine 9e

Injection Therapies

Corticosteroid Injection

• Indication: Failure of conservative treatment, or to shorten the symptomatic period
• Important caveat: Long-term outcome may be worse in injected patients than uninjected patients at 12 months; provides short-term (up to 6 weeks) pain and functional improvement
• Technique (Rheumatology textbook): 10-20 mg methylprednisolone acetate via a 25 or 27-gauge needle; advance needle to periosteum, infiltrate 1 mL lidocaine first to confirm correct site (pain on resisted wrist dorsiflexion should be abolished), then inject steroid deeply at the enthesis and radially within the proximal tendon
• Firestein & Kelley's protocol: Triamcinolone acetonide/hexacetonide or methylprednisolone 10-40 mg with ±1 mL 1% lidocaine; 23-gauge needle; inject at most tender point at common extensor tendon origin with needle reaching bone then slightly withdrawn
• Transient post-injection pain flare in 20-40% of patients
• Limit to 1-2 injections; avoid repeated injections

Platelet-Rich Plasma (PRP) and Autologous Blood Injection

• PRP/autologous blood shows intermediate-term superiority (6 months) over corticosteroid
• Corticosteroid is superior at 1 month; PRP is more effective at 6 months (updated meta-analysis)
• Autologous blood injection (Edwards & Calandruccio): 79% success rate in patients who failed all other nonoperative treatments
• No firm conclusions on PRP vs autologous blood superiority from current literature
• 2025 meta-analysis (PMID 40200209) confirms PRP benefit in tendinopathy vs corticosteroid at longer time points
• Rheumatology, 2-Volume Set (2022, Elsevier); Campbell's Operative Orthopaedics 15th Ed 2026

Extracorporeal Shockwave Therapy (ESWT)

• Evidence is conflicting: early studies promising; more recent RCTs show no significant difference vs sham for pain, function, or grip strength
• Some studies do report effectiveness for acute and chronic lateral epicondylitis
• A 2024 meta-analysis (PMID 39198038) compared ESWT vs corticosteroid injection - ESWT shows better longer-term outcomes; steroid provides faster short-term relief
• Used when conservative physiotherapy and injection have failed, before surgery
• Best evidence supports radial ESWT

Treatment Timeline Summary

Operative Treatment

• Open ECRB debridement and repair - exposure of degenerative tissue at the ECRB origin, resection, and repair to bone
• Arthroscopic debridement (Baker & Cummings technique) - increasingly popular; equivalent outcomes to open surgery, but earlier return to work (2-3 weeks); allows concurrent intra-articular examination
• No significant difference in DASH scores, pain, satisfaction, or failure rates between open and arthroscopic approaches
• Success rate in properly selected patients: ~90%
• Continued improvement expected for 3-6 months post-operatively with appropriate therapy

• Campbell's Operative Orthopaedics 15th Ed 2026

Recent Evidence Updates (PubMed 2023-2025)