Shockwave Therapy for Tennis Elbow

What Is Tennis Elbow?

You reach for your coffee mug and a sharp pain shoots through the outside of your elbow. Shaking hands makes you wince. Turning a doorknob, wringing out a washcloth, even typing — movements you never thought twice about — now come with a jolt of pain on the outer forearm. You have not played tennis in years, or maybe ever. Yet here you are with “tennis elbow.”

Lateral epicondylitis, commonly called tennis elbow, is a repetitive strain condition affecting the tendons that attach the forearm extensor muscles to the lateral epicondyle — the bony bump on the outside of the elbow. Despite its name, fewer than 5% of people diagnosed with tennis elbow actually play tennis. The condition is far more common in people who perform repetitive gripping, twisting, or lifting motions — plumbers, painters, carpenters, office workers, and musicians are frequently affected. It strikes roughly 1-3% of the general population, most often between ages 35 and 55.

Like plantar fasciitis, chronic tennis elbow is now understood to be a degenerative condition rather than an inflammatory one. Histological studies show disorganized collagen, increased ground substance, and neovascularization without significant inflammatory cells — a process called angiofibroblastic degeneration. This is an important distinction because it explains why anti-inflammatory treatments like cortisone injections often fail to produce lasting relief, and why treatments that stimulate a genuine healing response — like shockwave therapy — have gained traction.

How Shockwave Therapy Works for Tennis Elbow

Extracorporeal shockwave therapy (ESWT) delivers controlled acoustic energy pulses directly to the degenerated tendon tissue at the lateral epicondyle. The mechanism of action targets the underlying pathology of chronic tendinopathy rather than simply addressing symptoms.

When shockwave pulses reach the damaged tendon, they produce several therapeutic effects. The mechanical energy stimulates tenocyte activity — the tendon cells responsible for producing collagen and maintaining tissue integrity. In chronically degenerated tendons, these cells have essentially gone dormant. Shockwave energy appears to “wake them up,” triggering renewed collagen synthesis and tissue remodeling.

Shockwave therapy also promotes neovascularization (new blood vessel formation) in the tendon. Chronic tendinopathy is characterized by a poor healing environment with inadequate blood supply. The formation of new, functional blood vessels improves oxygen and nutrient delivery to the damaged tissue, creating conditions more favorable for repair.

Additionally, ESWT has a direct analgesic effect. The high-energy pulses overstimulate and disrupt pain-transmitting nerve fibers (nociceptors) at the treatment site. Research indicates that shockwave exposure reduces the concentration of Substance P, a neuropeptide involved in pain signaling, in the treated tissue. This dual action — promoting structural healing while reducing pain transmission — is what distinguishes shockwave from purely symptomatic treatments.

Both focused and radial shockwave devices are used for tennis elbow. The lateral epicondyle is a relatively superficial structure, making it well-suited to radial shockwave therapy (rESWT), which is more widely available and typically less expensive per session.

What the Research Says

Tennis elbow is one of the most studied indications for shockwave therapy, with multiple randomized controlled trials and meta-analyses supporting its use in chronic cases.

Pettrone & McCall, 2005 (Journal of Bone and Joint Surgery): This pivotal double-blind, randomized, placebo-controlled trial evaluated focused ESWT in 114 patients with chronic lateral epicondylitis that had persisted for at least six months despite conservative treatment. At 12 weeks, 61% of the ESWT group achieved treatment success (defined as at least 50% improvement in pain) compared to 29% in the placebo group. This study was instrumental in supporting FDA clearance of ESWT for tennis elbow.

Rompe et al., 2004 (American Journal of Sports Medicine): Rompe compared three treatment approaches for chronic lateral epicondylitis: radial ESWT, corticosteroid injection, and a wait-and-see approach. At 12 months, the shockwave group showed significantly better outcomes than both comparators. Notably, the corticosteroid group actually performed worse than the wait-and-see group at the one-year mark — a finding consistent with growing evidence that repeated cortisone injections may impair long-term tendon healing.

Spacca et al., 2005 (Europa Medicophysica): This study examined radial shockwave therapy in 77 patients with chronic lateral epicondylitis and reported a 79% success rate at six-month follow-up. Pain scores decreased by an average of 72%, and grip strength improved significantly.

Speed et al., 2002 (The Lancet): It is worth noting that some earlier studies, including this often-cited trial, found no significant benefit of ESWT over placebo. However, subsequent analyses have suggested that these negative results may be attributable to insufficient energy dosing, inadequate treatment protocols, or inclusion of acute (rather than chronic) cases. The current consensus, reflected in multiple clinical guidelines, supports ESWT for chronic lateral epicondylitis that has failed conservative care.

What to Expect During Treatment

A shockwave therapy session for tennis elbow is a quick, outpatient procedure that typically takes 10 to 15 minutes of active treatment time.

Your provider will begin by palpating (pressing on) the outside of your elbow to locate the point of maximum tenderness over the lateral epicondyle. This is your treatment target. The area is marked, and ultrasound coupling gel is applied to ensure efficient energy transmission.

The shockwave applicator is pressed against the skin over the tender point. Treatment begins at a low energy level to allow you to acclimate to the sensation. Your provider gradually increases the intensity to a therapeutic level based on your feedback.

You will feel a rapid series of tapping or pulsing impacts. Most patients describe the sensation as a firm, rhythmic thumping that ranges from uncomfortable to moderately painful directly over the tender spot. The surrounding areas typically feel less intense. A standard session delivers 2,000 to 3,000 impulses for radial shockwave or 1,500 to 2,000 for focused shockwave.

Some providers periodically adjust the applicator position to treat the area comprehensively, including the proximal extensor tendon and the surrounding musculotendinous junction. Local anesthesia is generally not recommended — multiple studies suggest outcomes are better without it, possibly because pain feedback helps guide accurate targeting.

After the session, you may notice mild redness, warmth, or soreness at the treatment site. This typically resolves within 24 to 48 hours. You can use your arm for normal activities immediately, though heavy gripping and lifting should be limited for a couple of days.

Number of Sessions & Recovery Timeline

Treatment protocols for tennis elbow vary depending on the device type and the severity of your condition.

Radial shockwave (rESWT): Three to five sessions, spaced one week apart. This is the most common outpatient protocol. Each session takes about 10 to 15 minutes of active treatment.

Focused shockwave (fESWT): One to three sessions at higher energy levels, spaced two to three weeks apart. Some protocols combine focused treatment with a radial “warm-up” phase.

What the recovery timeline typically looks like:

• Days 1-3 after each session: Mild soreness or aching at the treatment site is common and expected. Avoid taking anti-inflammatory medications (NSAIDs like ibuprofen) during the treatment course, as they may blunt the healing response that shockwave therapy is designed to trigger.
• Weeks 1-3: Some patients feel improvement early; others experience a temporary increase in symptoms before improvement begins. Both responses are normal.
• Weeks 4-8: Progressive improvement in grip strength and reduction in pain with daily activities.
• Weeks 8-12: Most patients reach meaningful improvement by this point. Clinical studies typically assess outcomes at three months.
• 3-12 months: Continued gains are possible as tendon remodeling progresses. Studies show improvement can continue for up to a year after treatment.

Combining shockwave with an eccentric exercise program for the wrist extensors is strongly recommended. Research suggests that the combination produces better outcomes than either treatment alone.

Cost & Insurance Coverage

Shockwave therapy for tennis elbow typically costs between $250 and $500 per session. A full treatment course of three to five sessions generally runs $750 to $2,500, depending on your location, device type, and provider.

Insurance considerations: ESWT has FDA clearance for chronic lateral epicondylitis, which supports insurance coverage in principle. In practice, coverage remains inconsistent across payers. Some private insurers cover ESWT with prior authorization and documentation of failed conservative treatment (typically six months). Medicare maintains a national non-coverage determination for ESWT, though exceptions may exist through Medicare Advantage plans.

Tips for navigating coverage:

• Ask your provider’s office to submit a pre-authorization request with documentation of your treatment history
• Include records of failed conservative treatments: physical therapy notes, injection records, duration of symptoms
• Request the specific CPT codes your provider will use (0101T or 0102T) and verify with your insurer

For many patients, the out-of-pocket cost of shockwave therapy compares favorably to the cumulative expense and lost work time associated with prolonged physical therapy, repeated cortisone injections, or surgical debridement — which itself carries a weeks-long recovery period and does not guarantee success. For more details, see our shockwave therapy cost guide.

Who Is a Good Candidate?

Shockwave therapy for tennis elbow is most appropriate for patients with chronic symptoms that have not responded to standard conservative treatment. You may be a good candidate if:

• You have had lateral elbow pain for at least three to six months
• You have tried and not improved with physical therapy, bracing, rest, and/or corticosteroid injections
• Your pain significantly limits work tasks, exercise, or daily activities involving gripping or lifting
• You prefer a non-surgical approach before considering operative intervention

Factors that may influence outcomes:

• Duration of symptoms: Paradoxically, some studies suggest patients with longer symptom duration (over 12 months) may respond particularly well to ESWT, possibly because the condition has fully transitioned from inflammatory to degenerative, which is the pathology shockwave targets most effectively.
• Previous cortisone injections: Multiple prior injections may reduce the effectiveness of shockwave therapy. If possible, allow at least six weeks between your last injection and the start of ESWT.
• Worker’s compensation cases: Some studies note lower success rates in worker’s comp populations, though this likely reflects psychosocial factors rather than a biological limitation of the treatment.

Contraindications — shockwave therapy should NOT be used if you have:

• A bleeding disorder or are taking anticoagulant medication
• An active infection at the treatment site
• A tumor or malignancy in the treatment area
• Had a cortisone injection in the area within the past four to six weeks
• An open growth plate near the treatment area (children and adolescents)
• Ulnar nerve involvement or instability at the elbow (requires separate evaluation)

If conservative treatments have stalled and you are weighing your options, shockwave therapy offers a well-studied, non-invasive path worth discussing with a qualified provider.

Learn More

Explore our complete guide to shockwave therapy conditions or browse our latest research and articles to learn more about ESWT treatment options.

References

1. Pettrone FA, McCall BR. Extracorporeal shock wave therapy without local anesthesia for chronic lateral epicondylitis. J Bone Joint Surg Am. 2005;87(6):1297-1304. PubMed

2. Rompe JD, Decking J, Schoellner C, Theis C. Repetitive low-energy shock wave treatment for chronic lateral epicondylitis in tennis players. Am J Sports Med. 2004;32(3):734-743. PubMed

3. Spacca G, Necozione S, Cacchio A. Radial shock wave therapy for lateral epicondylitis: a prospective randomised controlled single-blind study. Eura Medicophys. 2005;41(1):17-25. PubMed

4. Speed CA, Nichols D, Richards C, et al. Extracorporeal shock wave therapy for lateral epicondylitis – a double blind randomised controlled trial. J Orthop Res. 2002;20(5):895-898. PubMed