Shockwave Therapy for Tennis Elbow: What Does the Research Actually Show?

Where shockwave fits in tennis elbow treatment

Tennis elbow — lateral epicondylalgia — is an overload problem of the wrist-extensor tendons at the outer elbow, and its first-line, best-evidenced treatment is a structured, progressive loading programme: the exact one in my tennis elbow exercises guide. Shockwave (extracorporeal shockwave therapy, or ESWT) is one of several options considered when a genuine 8–12 week run at that loading programme hasn't resolved symptoms — alongside things like a corticosteroid injection or, occasionally, other injectable treatments. It's a second-line conversation, not a substitute for the exercises.

What ESWT is and how it's thought to work

ESWT delivers focused or radial acoustic pulses through the skin to the tendon. In chronically degenerated tendon tissue — which is what established tennis elbow actually is, not classic inflammation — the theory is that controlled micro-trauma from the shockwave pulses stimulates blood flow, breaks up disorganised scar-like tissue, and kick-starts a healing response the tendon has stalled on. It's a plausible mechanism, but plausible mechanisms and consistent clinical results don't always arrive together, which is exactly where tennis elbow's shockwave evidence sits.

What the research actually shows

A 2020 systematic review and meta-analysis pooling 13 randomised controlled trials (1,035 patients) found shockwave therapy produced better pain scores and grip strength than comparison treatments, with a good safety profile. That's a genuinely positive result — but it sits alongside plenty of individual trials with more equivocal findings, and the review itself calls for better-quality studies to pin down optimal dosing and technique, which vary a lot between devices and protocols. Trial results for ESWT in tennis elbow have been mixed often enough that current clinical guidance generally places it below, or alongside, progressive loading exercise rather than above it — it's an option to add to a stalled recovery, not a reason to skip the loading programme.

Shockwave versus corticosteroid injection

This comparison matters because it's usually the real choice patients face. A 2024 systematic review and meta-analysis of randomised trials found corticosteroid injection gave faster relief at one month, but shockwave therapy came out ahead at three and six months for both pain and grip strength — with similarly low rates of mild adverse effects in both groups. That pattern echoes the wider problem with steroid injections for tendon conditions covered in my tennis elbow treatment guide: good short-term comfort, worse medium-term outcomes, and a small but real tendon-weakening risk with repeated injections. Shockwave doesn't carry that particular downside, which is part of its appeal as a second-line option even where the evidence for benefit is more modest than for loading exercise.

What a course involves, and cost

• Sessions: typically 3–5, roughly a week apart.
• During treatment: a probe delivers pulses over the tender area at the outer elbow — expect a sharp, aching discomfort during each session rather than serious pain.
• NHS availability: patchy — some physiotherapy and orthopaedic services offer it, but access varies by area and it's often not first-line on the NHS pathway.
• Private cost: commonly charged per session rather than per course; readers near Uckfield can see current private physiotherapy prices for a sense of local rates, and discuss options with a clinician in person via the sports injury rehabilitation clinic.

Realistic expectations

Go in expecting a modest, not dramatic, additional benefit on top of — not instead of — your loading programme. Most people who respond notice a gradual improvement over the weeks following a course, not immediate relief. If shockwave is being offered as a stand-alone fix without any mention of the exercise programme, that's worth questioning; the strongest evidence in tennis elbow, across every guideline I've read, still sits with progressive loading.

FAQ: shockwave therapy for tennis elbow

Does shockwave therapy actually work for tennis elbow?

Evidence is mixed but leans positive — pooled trial data shows better pain and grip-strength outcomes than comparison treatments, though individual studies vary and better-quality research is still needed.

Is shockwave better than a steroid injection for tennis elbow?

Steroid injections tend to give faster relief in the first month, but trials show shockwave overtakes them for pain and grip strength by three to six months, without the tendon-weakening risk of repeated injections.

How many shockwave sessions does tennis elbow need?

Most trial protocols use 3–5 sessions about a week apart, with benefit judged over the following weeks rather than immediately after treatment.

Should I try shockwave instead of exercises for tennis elbow?

No — progressive loading (covered in my tennis elbow exercises guide) remains the best-evidenced first-line treatment. Shockwave is worth discussing if a genuine 8–12 week course of loading hasn't resolved things.