Sever’s disease (calcaneal apophysitis) is one of the most common causes of heel pain in active children and adolescents. For families watching their young athlete hobble off the field or court with heel pain, the typical medical advice of “rest and wait” can be frustrating—especially when competitive seasons are short. Recent research into Extracorporeal Shock Wave Therapy (ESWT) is showing promising results that could significantly reduce recovery time and get kids back to their favorite sports faster. Luckily, at District Foot and Ankle, we offer the correct type of shockwave treatment (focused) to address this common pediatric condition.
Understanding Sever’s Disease
Sever’s disease occurs when the growth plate (apophysis) in the heel becomes inflamed due to repetitive stress. This condition typically affects children during growth spurts, usually between ages 8-14, when bones grow faster than muscles and tendons, creating tension at attachment points.
Key symptoms include:
- Pain in one or both heels, especially during activity
- Discomfort that worsens with running and jumping
- Tenderness when squeezing the sides of the heel
- Limping or walking on tiptoes to avoid pressure
- Stiffness in the feet, particularly in the morning
Sports Most Commonly Associated with Sever’s Disease
Certain sports place young athletes at higher risk for developing Sever’s disease due to the repetitive impact on the heel:
- Soccer: Running on hard surfaces combined with cleats that provide minimal heel cushioning creates significant stress on the growth plate.
- Basketball: Frequent jumping and running on hard courts places repetitive impact on the heel.
- Gymnastics: Dismounts and tumbling create high-impact forces through the heel.
- Track & Field: Distance running and sprinting, especially on hard surfaces, can trigger symptoms.
- Baseball/Softball: Running bases and fielding movements create heel stress, particularly on uneven playing surfaces.
Traditional Treatment vs. ESWT: The Recovery Timeline
Traditionally, Sever’s disease treatment has followed a “wait and see” approach, with recommendations for:
- Complete rest from aggravating activities
- Ice application
- Anti-inflammatory medications
- Stretching exercises
- Supportive footwear and/or orthotics
This conventional treatment often requires 2-3 months of reduced activity or even complete cessation of sports participation. According to research, symptoms can potentially recur for 12-18 months before complete resolution at skeletal maturity. For competitive young athletes, this extended downtime can be devastating.
The Evidence for ESWT in Sever’s Disease
Recent clinical studies have provided promising evidence for the use of ESWT in treating Sever’s disease in children. Two important case series have documented the effectiveness of this approach:
Lohrer & Nauck Study (2015)
This pioneering case series from Germany documented 5 children (ages 9-12) with refractory Sever’s disease who had not responded to standard conservative treatments. These patients received radial shockwave therapy to the heel over 2-5 weekly sessions. The results were remarkable:
- All 5 patients achieved complete pain relief at final follow-up
- 4 out of 5 patients reported the treatment as successful
- 3 out of 5 returned to sports at pre-injury level
- No adverse effects were observed
- Long-term follow-up (1-8 years) showed no recurrence
This early study suggested that ESWT could be a safe and effective option for Sever’s disease that doesn’t respond to conventional treatment.
Shafshak & Amer Study (2023)
This more recent and larger case series evaluated focused ESWT for lower-limb apophyseal injuries, including 7 patients with Sever’s disease. The researchers used low-energy focused ESWT (0.1 mJ/mm²) with significant results:
- 71% of Sever’s patients reported complete (100%) pain relief after just one session
- All Sever’s patients achieved full pain resolution after at most two sessions
- Median time to resume full sports activity was only 2 weeks
- No recurrences were noted during the 3-month follow-up period
- No adverse events or complications were observed in any patients
This study is particularly compelling because these children had chronic symptoms averaging 1 year in duration prior to ESWT treatment, yet most returned to sports within 2-4 weeks of beginning treatment.
How ESWT Works for Sever’s Disease
ESWT delivers focused acoustic waves to the affected tissue, stimulating healing through several biological mechanisms (very nuanced details!):
- Pain Reduction: ESWT modulates substance P release and reduces pain mediators such as calcitonin gene-related peptide, creating a pain relieving effect.
- Tissue Regeneration: Through “mechanotransduction,” the therapy triggers angiogenic and healing responses at cellular and molecular levels, increasing protein synthesis and release of growth factors like TGF-β1 and vascular endothelial growth factor.
- Anti-Inflammatory Effects: Low-energy ESWT stimulates a shift in macrophage phenotype from pro-inflammatory (M1) to anti-inflammatory (M2), which are directly involved in regenerative processes.
- Increased Blood Flow: The treatment enhances circulation to the affected area, accelerating the natural healing process.
What to Expect During ESWT Treatment
For families considering ESWT for Sever’s disease, here’s what the process typically involves:
- Evaluation: We will assess the condition to confirm the diagnosis and determine if ESWT is appropriate.
- Treatment Sessions: Most children require only 1-3 weekly sessions with low-energy focused ESWT.
- Treatment Experience: During the procedure, a gel is applied to the heel, and the ESWT applicator delivers shock waves to the affected area. The sensation is generally tolerable without anesthesia but there can be some pain experienced (usually just as bad as Severs’ feels on a “bad day”).
- Post-Treatment Protocol: Your child will typically be advised to:
- Limit aggravating activities for 1-2 weeks
- Wear appropriate supportive devices (heel cups, orthotics)
- Perform stretching exercises as directed
- Gradually return to activities as pain subsides
- Follow-up: We will assess progress and determine when full activity can be resumed safely.
Comparing ESWT to Other Treatments
While no direct head-to-head trials have compared ESWT to other Sever’s disease treatments like structured physical therapy or orthotic devices, the available evidence suggests that ESWT may offer several advantages:
- Faster Pain Resolution: ESWT appears to provide more rapid relief than standard approaches
- Earlier Return to Sports: Most patients treated with ESWT return to activities within 2-4 weeks versus 2-3 months with conventional care
- Fewer Recurrences: Follow-up data suggests sustained relief after ESWT
- Minimal Side Effects: No significant adverse events have been reported with therapeutic-dose shockwaves
A 2024 systematic review of conservative treatments for Sever’s disease examined 8 studies but did not include any ESWT trials, highlighting the need for more research in this area. The review concluded that while numerous treatments (heel pads, stretching, orthoses) are commonly used, no single modality showed clear superiority.
Taking Action for Recovery
Don’t let Sever’s disease sideline your young athlete for months when a faster, effective treatment option exists. ESWT represents a significant advancement in treating this common condition, offering a path to quicker recovery that can help minimize time away from sports.
The 2023 Shafshak and Amer study concluded that “focused ESWT is a noninvasive technique that can be repeated with good tolerability by youth athletes while also lacking side effects. It may shorten healing times and enhance an early return to play hence providing an alternative to the usual ‘wait and see’ strategy.”
If your child is showing signs of heel pain consistent with Sever’s disease, contact us today to discuss whether ESWT might be right for them. With proper treatment, they can return to the activities they love with reduced pain and minimal downtime.
Frequently Asked Questions About Sever’s Disease
How long does Sever’s disease last?
Without intervention, Sever’s disease can be frustratingly persistent. Think of it as a houseguest who doesn’t quite know when to leave—it might stick around for 6 months to 2 years if left to its own devices. The condition typically lasts until the growth plate closes, which happens around age 15 for boys and 13 for girls.
With traditional treatments (rest, ice, stretching, orthotics), symptoms usually improve within 2-3 months but can recur when activities are resumed. That’s where ESWT comes in as a game-changer—the 2023 Shafshak study showed most patients experiencing complete pain relief in just 2-4 weeks, with no recurrence during the follow-up period.
What triggers Sever’s disease?
Sever’s disease is like the perfect storm of growing pains. The main triggers include:
- Growth spurts: When bones grow faster than muscles and tendons, it creates tension at the heel’s growth plate
- High-impact activities: Running, jumping, and sports with quick stops and starts
- Poor footwear: Shoes with minimal cushioning or support
- Biomechanical issues: Flat feet, high arches, or an unusual gait
- Hard playing surfaces: Concrete courts, artificial turf, or hard indoor floors
It’s essentially what happens when you combine a rapidly growing foot with the physical demands of youth sports—particularly those that involve lots of running and jumping on hard surfaces.
Can my child still play sports with Sever’s disease?
This is the million-dollar question for young athletes and their families! With traditional treatment, doctors typically recommend a significant reduction in activity or even complete rest from sports for 2-3 months—a devastating prospect for competitive athletes.
The exciting news from ESWT research is that it may dramatically shorten this downtime. The Shafshak & Amer study showed that after ESWT treatment, most young athletes were able to return to their previous level of activity within just 2-4 weeks.
That said, even with ESWT, a brief period of modified activity is usually recommended immediately after treatment. Your doctor will likely suggest:
- A short period of relative rest (1-2 weeks)
- Gradually increasing activity as symptoms improve
- Proper stretching before activity
- Appropriate footwear modifications
- Stopping activity if pain returns
The goal is to keep kids active while managing symptoms and allowing healing, rather than complete sports cessation (keep those muscles strong!).
What are the symptoms of Sever’s disease?
Sever’s disease announces itself in several ways that are hard to ignore:
- Pain in the heel: Usually at the back of the heel, that worsens during and after physical activity
- Morning stiffness: The first steps out of bed can be particularly painful
- Limping: Especially after sports or extended activity
- Pain when squeezing: Tenderness when you press on the sides of the heel
- Walking on tiptoes: Kids often adjust their gait to avoid putting pressure on painful heels
- Swelling and redness: Sometimes visible at the back of the heel
- Pain that improves with rest: But quickly returns when activity resumes
Unlike an acute injury that happens in an instant, Sever’s symptoms typically develop gradually and may affect one or both heels.
At what age does Sever’s disease occur?
Sever’s disease has a fairly predictable timeline that follows growth patterns. It typically affects:
- Boys: Ages 10-15, with peak incidence around ages 12-14
- Girls: Ages 8-13, with peak incidence around ages 10-12
This gender difference reflects the earlier skeletal maturity in girls compared to boys. The condition resolves once the calcaneal (heel) growth plate closes—typically by age 15 in boys and 13 in girls.
It’s rare to see Sever’s disease in very young children or in teenagers who have finished growing. If heel pain occurs outside these age ranges, other conditions should be considered.
Disclaimer: While ESWT shows promising results for Sever’s disease, individual results may vary. Always consult with a qualified healthcare provider for personalized medical advice.