Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

What Is a Calcaneal Fracture?

The calcaneus is the heel bone — the largest bone in the foot. It bears 100% of body weight with every step and absorbs enormous forces during running and jumping. A calcaneal fracture occurs when the heel bone breaks, typically from a high-energy impact such as a fall from height, motor vehicle accident, or severe twisting injury.

Calcaneal fractures are among the most complex and consequential injuries in foot and ankle surgery. They account for approximately 2% of all fractures but carry a disproportionately high burden of long-term disability — up to 20% of affected workers never return to their previous employment.

How Calcaneal Fractures Happen

The most common mechanism is an axial load — landing directly on the heel from a fall. Construction workers, window washers, roofers, and tree workers sustain these injuries from falls as short as 6–8 feet. The talus (ankle bone above the calcaneus) is driven downward like a wedge, splitting the calcaneus. High-speed motor vehicle accidents and sports impacts can produce similar patterns. Stress fractures of the calcaneus are a distinct, lower-energy subset seen in runners and military recruits.

Types of Calcaneal Fractures

Fractures are classified as intra-articular (involving the subtalar joint, where the calcaneus meets the talus) or extra-articular. Intra-articular fractures are more common (75%) and more serious because joint surface disruption leads to post-traumatic arthritis. The Sanders classification (based on CT findings) grades severity from Type I (non-displaced) through Type IV (severely comminuted), guiding surgical decision-making. Tongue-type and joint depression patterns describe specific fracture configurations.

Diagnosis

Initial evaluation includes plain X-rays — the lateral view reveals the characteristic flattening (decreased Böhler’s angle) of the calcaneus. CT scanning is essential for surgical planning, providing three-dimensional visualization of fracture lines and joint surface involvement. The foot appears bruised, swollen, and widened (the heel is pushed outward). Bilateral calcaneal fractures occur in 10% of cases from bilateral landing impacts.

Treatment: Surgery vs. Non-Surgical Management

Treatment is controversial and individualized. Non-displaced or minimally displaced fractures (Sanders Type I) are managed non-surgically with casting or a boot, non-weight-bearing for 6–10 weeks, and gradual rehabilitation. Significantly displaced intra-articular fractures in healthy, active patients are typically treated with open reduction and internal fixation (ORIF) using plates and screws — the goal is to restore joint surface alignment and heel height. Surgery typically occurs 7–14 days after injury, once soft tissue swelling resolves, to reduce wound complication risk.

Some severely comminuted fractures in high-risk patients (smokers, diabetics, poor soft tissue) are managed non-surgically despite displacement, as wound healing complications after surgery can be catastrophic. Primary subtalar arthrodesis (fusion) at the time of fixation is considered for the most severe fractures.

Recovery and Long-Term Outcomes

Recovery from calcaneal fractures is prolonged. Non-weight-bearing typically lasts 8–12 weeks, followed by gradual progressive loading. Full return to work in physically demanding jobs may take 12–18 months. Post-traumatic subtalar arthritis remains a significant long-term sequela — patients with persistent arthritis pain after ORIF may ultimately require subtalar fusion. Despite improvements in surgical technique, calcaneal fractures remain challenging injuries with outcomes that correlate most strongly with the initial fracture severity.

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When to See a Podiatrist for a Heel Fracture

Calcaneal (heel bone) fractures are serious injuries that require expert evaluation to determine the best treatment approach. At Balance Foot & Ankle, Dr. Tom Biernacki provides CT-guided fracture assessment and both surgical fixation and non-operative management for calcaneal fractures.

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Clinical References

1. Buckley R, Tough S, McCormack R, et al. Operative compared with nonoperative treatment of displaced intra-articular calcaneal fractures: a prospective, randomized, controlled multicenter trial. J Bone Joint Surg Am. 2002;84(10):1733-1744.
2. Sanders R. Displaced intra-articular fractures of the calcaneus. J Bone Joint Surg Am. 2000;82(2):225-250.
3. Griffin D, Parsons N, Shaw E, et al. Operative versus non-operative treatment for closed, displaced, intra-articular fractures of the calcaneus: randomised controlled trial. BMJ. 2014;349:g4483.

Dr. Tom Biernacki, DPM

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Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.