Zygomatic Bone Fracture: Causes, Symptoms, and Treatment

What is Zygomatic Bone Fracture?

The zygomatic bone, commonly known as the cheekbone, is a prominent facial bone that contributes to the structure of the eye socket, cheek, and side of the face. A zygomatic bone fracture occurs when this bone breaks, often due to trauma or impact. This type of fracture can affect facial appearance, vision, and jaw movement, making it a serious medical concern.

Zygomatic fractures are among the most common facial fractures, second only to nasal bone fractures. They can occur in isolation or as part of more complex facial injuries. Proper diagnosis and treatment are essential to restore function and aesthetics.

Common Causes

Zygomatic bone fractures typically result from high-impact trauma. Common causes include:

• Motor vehicle accidents: Collisions, especially without seatbelts or airbags, can cause facial trauma.
• Falls: Tripping, slipping, or falling from heights can lead to facial fractures.
• Sports injuries: Contact sports like football, hockey, or boxing increase the risk of facial trauma.
• Assaults or physical altercations: Punches or strikes to the face can fracture the zygomatic bone.
• Workplace accidents: Industrial or construction-related incidents may cause facial injuries.
• Bicycle or motorcycle accidents: Even with helmets, facial fractures can occur.
• Domestic accidents: Such as being hit by a heavy object or walking into a door.
• Military or combat injuries: Explosions or direct trauma can lead to fractures.

According to the National Institutes of Health (NIH), zygomatic fractures are more common in males and often occur in young adults due to higher-risk activities.

Associated Symptoms

A zygomatic bone fracture can cause a variety of symptoms, depending on the severity and location of the break. Common signs include:

• Facial swelling and bruising: Particularly around the cheek and under the eye.
• Pain or tenderness: Especially when touching the affected area.
• Flattening of the cheek: A visible deformity or asymmetry in facial structure.
• Difficulty opening the mouth: Due to involvement of the jaw joint (temporomandibular joint).
• Numbness or tingling: In the cheek, upper lip, or side of the nose (due to nerve damage).
• Double vision or blurred vision: If the fracture affects the eye socket.
• Blood in the sinus or nose: Due to damage to nearby structures.
• Pain when chewing: As the zygomatic bone connects to the upper jaw.

In severe cases, the fracture may cause the eye to sink inward (enophthalmos) or lead to persistent numbness due to nerve injury.

When to See a Doctor

If you suspect a zygomatic bone fracture, seek medical attention immediately. Key signs that warrant a doctor’s visit include:

• Severe facial pain or swelling after trauma.
• Visible deformity or asymmetry in the face.
• Difficulty moving the jaw or opening the mouth.
• Numbness or tingling in the face that doesn’t improve.
• Vision changes, such as double vision or blurred vision.
• Persistent bleeding from the nose or mouth.

The Mayo Clinic recommends prompt evaluation to prevent complications like infection, chronic pain, or permanent nerve damage.

Diagnosis

Doctors diagnose zygomatic bone fractures through a combination of physical examination and imaging tests:

• Physical exam: The doctor will check for tenderness, swelling, deformity, and nerve function.
• X-rays: To confirm the fracture and assess its severity.
• CT scan: Provides detailed images of the bone and surrounding structures, often used for complex fractures.
• MRI (in some cases): If soft tissue or nerve damage is suspected.

The Cleveland Clinic notes that imaging is crucial for determining the best treatment approach.

Treatment Options

Treatment depends on the fracture’s severity and may include:

Non-Surgical Treatments

• Pain management: Over-the-counter pain relievers (e.g., ibuprofen) or prescription medications.
• Ice packs: To reduce swelling in the first 48 hours.
• Soft diet: Avoiding hard or chewy foods to prevent further injury.
• Rest: Limiting physical activity to allow healing.

Surgical Treatments

• Open reduction and internal fixation (ORIF): Surgery to realign the bone and secure it with plates or screws.
• Closed reduction: Manual realignment without surgery (for minor fractures).
• Reconstruction: If the fracture affects the eye socket or other structures.

The World Health Organization (WHO) emphasizes that surgical intervention may be necessary for severe or displaced fractures to restore function and appearance.

Prevention Tips

While some accidents are unavoidable, you can reduce the risk of zygomatic bone fractures by:

• Wearing seatbelts in vehicles.
• Using protective gear (helmets, face shields) during sports or high-risk activities.
• Avoiding physical altercations or violent situations.
• Ensuring workplace safety measures are followed.
• Using handrails and non-slip mats to prevent falls.

The Centers for Disease Control and Prevention (CDC) recommends safety precautions to minimize facial trauma.

Emergency Warning Signs

Seek immediate medical attention if you experience any of the following after facial trauma:

• Severe headache or confusion (possible brain injury).
• Clear fluid leaking from the nose or ears (sign of skull fracture).
• Loss of consciousness, even briefly.
• Severe bleeding that doesn’t stop.
• Sudden vision loss or severe eye pain.
• Difficulty breathing or swallowing.

These symptoms may indicate a life-threatening condition requiring urgent care.