Signs That a Fracture Did Not Heal Properly (Non-Union) — Causes, Symptoms & Treatment: By Dr. Balaraju Naidu, Robotic Orthopedic Surgeon, ONUS Robotic Hospitals
When a bone breaks, your body starts a natural healing process that typically completes within 6–12 weeks. But in some cases, the fracture fails to heal even after several months. This condition is known as Non-Union.
Early detection is extremely important because untreated non-union can lead to long-term pain, deformity, and disability.
What Is a Non-Union?
A non-union occurs when the broken bone does not produce enough new bone (callus) to join the fracture ends. This may happen due to:
- Poor blood supply
- Severe trauma
- Infection
- Improper immobilization
- Diabetes or smoking
- Osteoporosis
- Early weight-bearing
- Inadequate surgical fixation
Common Signs That a Fracture Has Not Healed Properly
1. Persistent Pain at the Fracture Site
Pain that continues for more than 8–12 weeks, especially with activity, is the most common sign. Healing fractures gradually show decreasing pain — if not, it is a warning sign.
2. Swelling That Doesn’t Go Down
Chronic swelling, warmth, or redness suggests abnormal healing or an underlying infection.
3. Instability or Abnormal Mobility
If the broken bone still moves abnormally or feels unstable, it indicates lack of union.
4. Deformity or Visible Change in Limb Shape
A bent limb, shortening, or abnormal angulation can appear when the fracture doesn’t heal in alignment.
5. Clicking or Creaking Sensation
Patients often describe a “movement inside the bone” or clicking when the fracture ends rub against each other.
6. Weakness and Difficulty Using the Limb
Poor healing results in difficulty lifting objects, walking, or returning to daily activities.
7. No X-ray Evidence of Healing
Even after weeks, X-rays may show:
- No callus formation
- Gap between fracture ends
- Broken implants or screws becoming loose
Radiological confirmation is the gold standard to diagnose non-union.
Diagnosis of Non-Union
Your orthopedic surgeon may use:
- X-ray
- CT scan
- Blood tests (to check for infection)
- Bone health evaluation
Treatment Options for Non-Union
1. Revision Surgery / Re-fixation
Fixing the bone with better stability using plates, screws, or rods.
2. Bone Grafting
Adding bone tissue from the pelvic bone or artificial graft to stimulate healing.
3. Biological Enhancers
- PRP
- Bone morphogenetic proteins
- Stem cell therapy
4. External Fixators or Ilizarov Technique
Used in complex gaps or bone loss.
5. Robotic-Assisted Non-Union Surgeries
ONUS Robotic Hospitals use precision robotic systems for accuracy, faster healing, and reduced complications.
When Should You See a Doctor?
Seek immediate medical attention if you notice:
- Pain not improving after months
- Swelling or redness
- Difficulty bearing weight
- Any limb deformity
- Suspicion of loosening implants
Non-union is a treatable condition — but delay can worsen the bone alignment and limit mobility. With advanced orthopedic care, proper fixation, and modern robotic technology, most non-unions can be successfully corrected.
For Appointments:
ONUS Robotic Hospitals – Hyderabad
