Achilles Bone Spur 2026: Treatment & Surgery | Podiatrist

📖 Related: Custom Orthotics Guide: How Orthotics Help Achilles & Heel Pain

In-Office Treatment at Balance Foot & Ankle

When Achilles bone spur or heel pain not responding to stretching persists despite home care, our team provides hands-on exam plus imaging when needed and treatment at our Howell and Bloomfield Hills locations. Same-day appointments are available.

Frequently Asked Questions

What’s the difference between Achilles tendinitis and tendinosis?

Tendinitis is acute inflammation (early-stage, under 6 weeks). Tendinosis is chronic degeneration without active inflammation — collagen breakdown, microscopic tearing, thickening. This distinction is critical for treatment: tendinitis responds to rest and anti-inflammatories; tendinosis does NOT respond to NSAIDs or ice because there’s no active inflammation to suppress. Tendinosis requires eccentric loading therapy and often PRP to stimulate collagen repair. Many patients treat tendinosis like tendinitis for months, prolonging recovery unnecessarily.

Will Achilles tendinitis lead to a rupture?

Untreated Achilles tendinopathy increases rupture risk — but it’s not inevitable. Risk rises significantly when patients continue high-impact activity through moderate-to-severe pain, or return to sport before the tendon has healed. In our practice, patients who complete a structured eccentric loading protocol have roughly a 3% rupture rate. Those who ignore the condition and keep training have rates closer to 15–20%. Early treatment isn’t optional — it’s rupture prevention.

How long does Achilles tendinitis take to heal?

Insertional Achilles tendinitis (at the heel bone) typically takes longer than mid-portion tendinitis — often 3–6 months with consistent treatment. Mid-portion responds faster, usually 6–12 weeks. The biggest predictor of recovery time is how long you’ve had symptoms before starting treatment. Patients who begin care within 4 weeks recover twice as fast as those who wait 6+ months. Chronic tendinosis can require 12–18 months even with optimal care.

What is eccentric heel drop exercise and does it work?

Eccentric loading — raising on both feet on a step and lowering slowly on the injured foot alone — is the single most evidence-supported treatment for mid-portion Achilles tendinopathy. The Alfredson protocol (3 sets of 15 reps, twice daily, over 12 weeks) shows 60–80% success rates in research. The mechanism: controlled overload stimulates collagen remodeling and tendon thickening. It should be done on a step edge with a heel drop below level — flat-surface heel raises are significantly less effective.

Can I exercise with Achilles tendinitis?

Yes, with modification. Low-impact activity — swimming, cycling, elliptical — is generally well-tolerated and maintains fitness without loading the tendon. Running can often continue at reduced volume (30–40% less) if pain stays below 4/10 during activity. Plyometrics, hill running, and speed work should stop until the tendon is at least 70% healed. The key rule: some discomfort during eccentric exercises is acceptable; sharp or worsening pain means stop.

Should I use heat or ice for Achilles tendinitis?

For acute tendinitis (first 2–4 weeks): ice after activity to reduce inflammatory pain. For chronic tendinosis: heat before exercise to increase blood flow; ice after to reduce post-exercise soreness. Many patients with chronic tendinosis use ice exclusively and wonder why they’re not improving — cold vasoconstricts the tendon, reducing the blood flow that chronic degeneration requires to heal. If symptoms have been present more than 6 weeks, switch your protocol.

What shoes help Achilles tendinitis?

A heel lift of 8–12mm is the most impactful footwear modification — it reduces the mechanical stretch of the tendon during gait. Motion-control or stability shoes work better than neutral shoes for most patients. Avoid minimalist and zero-drop shoes entirely during treatment. Temporary heel lifts (3/8″) added to regular shoes are a quick way to assess whether elevation helps before investing in specific footwear.

What is PRP therapy and does it work for Achilles tendinopathy?

PRP (Platelet-Rich Plasma) involves drawing your blood, concentrating the growth factors via centrifuge, and injecting them into the tendon under ultrasound guidance. For chronic mid-portion Achilles tendinosis that hasn’t responded to 12+ weeks of eccentric exercise, PRP shows 60–75% success rates in systematic reviews. Results take 6–12 weeks to manifest. We use ultrasound guidance for all tendon injections to ensure accurate placement. PRP is generally not covered by insurance but is typically $400–700 per treatment.

Does Achilles tendinitis affect both feet?

Most cases are unilateral (one side), typically the dominant-leg side or the side of greater mechanical load. Bilateral Achilles tendinopathy can occur in runners who dramatically increase training volume, but also warrants evaluation for systemic conditions — particularly fluoroquinolone antibiotic use (ciprofloxacin, levofloxacin are known to weaken tendons), seronegative arthropathies, and hypothyroidism. If both tendons are symptomatic without a clear mechanical cause, a systemic workup is appropriate.

When does Achilles tendinopathy require surgery?

Surgery is considered after 6–12 months of failed conservative management. Procedures include debridement of degenerated tissue, calcification removal (for insertional tendinopathy), and in severe cases, tendon reconstruction with FHL transfer. About 10–15% of patients with Achilles tendinopathy eventually need surgery. The outcomes are generally good — 80–90% return to activity — but recovery takes 6–9 months. We always exhaust shockwave therapy and PRP before recommending surgery.

Is Achilles tendinitis related to plantar fasciitis?

They often co-occur and share common risk factors: tight calf muscles, overpronation, rapid training increases, and inadequate footwear. Mechanically, a tight gastrocnemius (calf) increases load on both the Achilles insertion and the plantar fascia. Treating one effectively often improves the other. If you have both conditions simultaneously, the rehabilitation protocol is similar — eccentric calf work and dorsiflexion stretching address both pathologies.

Related Conditions

What Is an Achilles Bone Spur?

If you’ve been told you have an Achilles bone spur, you likely have one of two distinct conditions — and telling them apart matters enormously for treatment. A retrocalcaneal bone spur grows at the back of the heel bone where the Achilles tendon inserts, pointing into the tendon. A plantar heel spur grows along the bottom of the heel at the plantar fascia insertion — different location, different treatment. In our clinic, we focus on the retrocalcaneal spur when discussing Achilles-related pain.

A retrocalcaneal bone spur associated with Achilles pathology is almost always part of a syndrome called insertional Achilles tendinitis or Haglund’s syndrome. The spur itself is rarely the primary pain generator — the tendinopathy and bursitis around it are. This distinction changes the entire treatment approach.

Conservative Treatment: What Works

Heel lifts (1/4 to 1/2 inch) raise the heel, reducing the angle at which the tendon wraps around the spur during walking. This is often the single most effective immediate intervention. We typically start patients on bilateral heel lifts in both shoes — avoid single-shoe lifts that create a leg-length imbalance. Eccentric calf raises (Alfredson protocol) are the gold-standard exercise treatment for Achilles tendinopathy: stand on a step, raise onto tiptoe with two feet, lower slowly on one foot. 3 sets of 15, twice daily. Evidence shows 60–80% improvement in pain at 12 weeks.

Extracorporeal shockwave therapy (ESWT) uses acoustic waves to stimulate tendon healing and reduce calcification. Multiple randomized trials show superior outcomes to sham treatment for insertional Achilles tendinitis specifically. We offer this in our clinic and see excellent results in patients who’ve failed 3 months of conservative care. Corticosteroid injection near (not into) the retrocalcaneal bursa can reduce inflammation short-term — but we use these cautiously near the Achilles due to tendon rupture risk.

When Is Surgery Needed?

Surgery for Achilles bone spur / Haglund’s syndrome is reserved for patients who have failed 6 months of dedicated conservative care. The standard procedure involves: removal of the bony prominence (calcaneal exostectomy), debridement of degenerated tendon tissue, retrocalcaneal bursa excision, and in some cases reattachment of the Achilles tendon if debridement requires more than 50% tendon removal. Approximately 90% of patients have satisfactory outcomes with surgery when properly selected.

Achilles Bone Spur Surgery Recovery Time

Recovery timeline depends on the extent of surgery. For isolated calcaneal exostectomy (bump removal without tendon work): non-weight-bearing 2–4 weeks, boot walking 4–8 weeks, return to normal shoes at 3 months, full sports return at 4–6 months. For procedures requiring Achilles tendon debridement and repair: non-weight-bearing 6 weeks, boot walking 6–12 weeks, return to sports at 9–12 months. In our clinic, we use FHL tendon transfer augmentation for large defects, which requires the longer timeline.

The most common mistake we see: patients expecting faster recovery after “just a bump removal.” Haglund’s surgery involves significant soft tissue work and the Achilles tendon heals slowly. Rushing recovery risks tendon re-injury and chronic pain.

The Bottom Line

Achilles bone spurs are almost always treatable without surgery — heel lifts, eccentric loading, and shockwave therapy resolve most cases. If surgery is needed, recovery takes 4–12 months depending on the extent of tendon involvement. Proper post-operative rehabilitation is as important as the surgery itself for achieving a full, durable recovery.

Sources

1. Alfredson H, Lorentzon R. “Chronic Achilles tendinosis.” Sports Med. 2000.
2. Rompe JD et al. “Eccentric loading versus eccentric loading plus shock-wave treatment for midportion Achilles tendinopathy.” Am J Sports Med. 2009.
3. Wagner E et al. “Surgical Techniques and Results of Retrocalcaneal Endoscopy.” Foot Ankle Int. 2006.

For a complete clinical overview: Achilles Tendon Rehabilitation Protocol — Dr. Biernacki explains eccentric calf exercises, loading programs, and conservative care before and after Achilles surgery at Balance Foot & Ankle.