Nonunion & Delayed Union

When a fracture is slow to heal — causes and treatment options

❓What Are Delayed Union & Nonunion?

Delayed union means that after a fracture, the bone is healing but much slower than expected.
Nonunion means the fracture has stopped healing entirely, and the bone ends move like a false joint.
Both conditions require proper treatment rather than waiting and hoping for improvement on their own.

⚙️Why Does It Happen?

Poor blood supply to the fracture site

Without enough blood flow, bone-forming cells don't get the nutrients they need

The fracture is not stable enough

If the broken bone is not held firmly in place, it cannot heal properly

Systemic factors interfere with healing

Smoking, poor nutrition, and osteoporosis can all slow bone recovery

🚬 Smoking 🦴 Osteoporosis 🥗 Vitamin D Deficiency 🔄 Repeated Stress 🩸 Diabetes 🦠 Infection at the Fracture Site

🔍Watch for These Symptoms

📅

Pain persists 3–6+ months after the fracture

😣

Pain at the fracture site with movement

🔄

Instability or wobbling at the fracture site

📐

X-ray shows the bone has not joined

💊Treatment

🔊

Ultrasound Bone Therapy

Low-intensity pulsed ultrasound (LIPUS), generally 20 min every day. It may be continued at home under your doctor's instructions. Insurance coverage applies only when the criteria are met, such as difficult-to-heal fractures

💉

PRP Therapy

Concentrated platelets from your own blood are injected at the fracture site. This is a self-pay treatment whose effectiveness is not established, and it carries risks such as pain, swelling, and infection at the injection site

🦺

Bracing / Splinting

Ensuring stability at the fracture site to encourage bone union

🔬

Surgery

For nonunion, surgery such as bone grafting or changing the fixation (plate or intramedullary nail) is a main treatment option. We do not perform surgery here, so we refer you to a partner hospital

📈Outlook & Recovery

🌿

Early intervention can improve outcomes in many cases

Delayed union improves with appropriate treatment in many cases. PRP therapy is not a treatment with established effectiveness. Nonunion may require surgery. The treatment approach is tailored to each patient based on the fracture location and condition.

🏠If Pain Persists After a Fracture

💡 Important Things to Know

If pain continues 3+ months after a fracture, consult an orthopedic specialist
Smoking significantly slows bone healing — consider quitting
Get enough calcium, vitamin D, and other bone-supporting nutrients
Ultrasound therapy cannot be used by people with an implanted electronic device such as a pacemaker, a heart condition, or a malignant tumor
Don't wait and hope it heals on its own — see a specialist early

Nonunion & Delayed Union

Early intervention can improve outcomes in many cases

💡 Important Things to Know

🩻 Gotokuji Orthopedic Clinic