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Zygomatic Fracture – Facial Swelling

What is Zygomatic fracture – facial swelling?

A zygomatic fracture, commonly called a “cheekbone fracture,” occurs when the zygomatic bone (the prominent bone that forms the cheek and part of the lateral orbital rim) breaks. The injury often produces rapid facial swelling because the bone is highly vascular and lies just beneath the skin. Swelling may extend to the lower eyelid, temporal region, and even the maxilla (upper jaw). While mild bruising can be self‑limiting, a displaced fracture can compromise eye function, nasal breathing, and overall facial symmetry.

In medical terminology the condition is referred to as a zygomaticomaxillary complex (ZMC) fracture. It represents one of the most frequent facial bone injuries in both trauma and sports‑related settings.<sup>1</sup>

Common Causes

• Motor‑vehicle collisions – steering‑wheel impact or side‑impact trauma.
• Falls – especially from standing height onto a hard surface.
• Physical assault – punches, elbows, or kicks to the cheek.
• Sports injuries – contact sports (football, boxing, rugby) or high‑speed activities (cycling, skateboarding).
• Alcohol‑related accidents – loss of balance leading to facial impact.
• Gunshot or penetrating injuries – direct trauma to the mid‑face.
• Industrial or work‑site accidents – struck by a falling object or machinery.
• Animal bites – especially from large dogs or wild animals.
• Severe sinus infections (rare) – chronic infection can weaken bone architecture, predisposing it to fracture from minor trauma.
• Pathologic fractures – underlying tumors or metabolic bone disease (e.g., osteogenesis imperfecta).

Associated Symptoms

Facial swelling is often the most noticeable sign, but several other symptoms frequently accompany a zygomatic fracture:

• Pain that worsens with jaw movement or pressure on the cheek.
• Bruising (ecchymosis) spreading to the lower eyelid, temple, or upper lip.
• Flattening or depression of the cheek contour.
• Difficulty opening or closing the mouth (trismus) due to muscle spasm.
• Numbness or tingling (paresthesia) over the cheek, upper lip, or infra‑orbital region caused by infra‑orbital nerve injury.
• Double vision (diplopia) or limited eye movement if the orbital rim is involved.
• Watery or blood‑tinged discharge from the eye or nose, suggesting a tear in the orbital floor or nasal cavity.
• Dental malocclusion – teeth no longer meet properly.
• Hissing or clicking sound when moving the jaw (indicative of joint involvement).

When to See a Doctor

Facial swelling after trauma can be benign, but the following circumstances warrant prompt evaluation by a healthcare professional:

• Swelling that continues to increase after the first 24–48 hours.
• Visible deformity of the cheek or asymmetry of the face.
• Severe pain unrelieved by over‑the‑counter analgesics.
• Any change in vision, double vision, or eye pain.
• Numbness or loss of sensation persisting beyond a few hours.
• Difficulty breathing through the nose or a “blocked” feeling that does not improve.
• Bleeding from the eye, nose, or mouth that does not stop.
• Persistent fever, swelling that feels warm to the touch, or signs of infection.
• Any concern about a possible concussion or head injury (headache, confusion, vomiting).

If any of these signs appear, seek medical attention immediately, preferably at an emergency department or a facial trauma center.

Diagnosis

Healthcare providers use a combination of history, physical examination, and imaging studies to confirm a zygomatic fracture.

1. Clinical Examination

• Inspection for swelling, bruising, and asymmetry.
• Palpation of the cheekbone, infra‑orbital rim, and zygomatic arch for step-offs or crepitus.
• Neurologic assessment of the infra‑orbital nerve (sensory testing of the cheek, upper lip, and side of the nose).
• Ophthalmologic check – eye movement, visual acuity, and globe integrity.
• Dental occlusion evaluation – checking how the upper and lower teeth meet.

2. Imaging Studies

• CT scan (computed tomography) with facial bone protocol – Gold standard; provides 3‑D view of bone displacement, orbital involvement, and associated sinus injuries.<sup>2</sup>
• Panoramic radiograph (orthopantomogram) – Helpful for initial screening but less detailed than CT.
• Plain X‑rays – May be used in low‑resource settings; includes Waters, Caldwell, and sub‑mentovertex views.

3. Specialist Consultation

Depending on the severity, patients may be referred to an oral‑maxillofacial surgeon, otolaryngologist, or ophthalmologist for coordinated care.

Treatment Options

The management plan depends on the fracture’s location, degree of displacement, presence of ocular or dental involvement, and the patient’s overall health.

Non‑Surgical (Conservative) Management

• Cold compresses – Apply for 15–20 minutes every 2 hours during the first 48 hours to reduce swelling.
• Analgesics – Acetaminophen or ibuprofen (unless contraindicated) for pain and inflammation.
• Soft diet – Avoid hard or chewy foods for 1–2 weeks to limit jaw movement.
• Head elevation – Sleeping with the head raised 30° decreases facial edema.
• Antibiotics – Prescribed only if there is an associated sinus or oral cavity breach, typically a 5‑day course of amoxicillin‑clavulanate.
• Observation – Minor, non‑displaced fractures often heal spontaneously within 4–6 weeks.

Surgical Intervention

Surgery is indicated when the fracture is displaced, involves the orbital rim, or causes functional deficits.

1. Closed reduction – Manipulation of the bone into proper alignment without incision, followed by splinting or intermaxillary fixation (IMF) for 1–2 weeks.
2. Open reduction and internal fixation (ORIF) – Small titanium plates and screws are placed through a limited intra‑oral or external incision to secure the bone. This method offers the most stable results for displaced ZMC fractures.<sup>3</sup>
3. Orbital floor repair – If the floor is fractured, a thin mesh or bone graft may be inserted to protect the eye.
4. Infra‑orbital nerve decompression – Performed when persistent numbness is due to nerve entrapment.

Post‑operative care includes antibiotics, a soft‑diet, wound care, and a follow‑up CT scan in 4–6 weeks to confirm healing.

Prevention Tips

• Wear a properly fitted helmet when riding bikes, motorcycles, or participating in high‑speed sports.
• Use face guards in contact sports (e.g., boxing, hockey).
• Maintain good vision and depth perception – replace worn glasses or contact lenses.
• Keep living spaces free of tripping hazards; install grab bars in bathrooms for older adults.
• Avoid excessive alcohol consumption, which impairs balance and reaction time.
• Practice safe driving: always wear seat belts, obey speed limits, and avoid mobile phone use while driving.
• Strengthen facial muscles through regular jaw‑relaxation exercises; tight muscles can increase impact force during a fall.
• Ensure pets are well‑trained to reduce the risk of severe bites.

Emergency Warning Signs

Key Take‑aways

A zygomatic fracture is a serious facial injury that often presents with rapid swelling, bruising, and functional disturbances. Prompt evaluation—ideally with a facial CT scan—helps determine whether conservative care or surgical fixation is required. Early treatment reduces the risk of long‑term complications such as persistent facial asymmetry, vision problems, or chronic nerve pain. Patients should seek immediate medical care for any signs of ocular involvement, uncontrolled bleeding, or neurologic changes, and they should follow preventive measures to protect the delicate mid‑face structures.

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References:

1. Mayo Clinic. Facial fractures. https://www.mayoclinic.org/diseases-conditions/facial-fractures/symptoms-causes/syc-20352715 (accessed June 2026).
2. CDC. Trauma Care: Guidelines for the Management of Facial Injuries. https://www.cdc.gov/trauma/pubs/trauma_report.pdf (accessed June 2026).
3. Cleveland Clinic. Zygomatic Fracture (Cheekbone Fracture). https://my.clevelandclinic.org/health/diseases/28488-zygomatic-fracture (accessed June 2026).
4. National Institute of Dental and Craniofacial Research. Zygomaticomaxillary Complex Fractures. https://www.nidcr.nih.gov (accessed June 2026).
5. World Health Organization. Global Status Report on Violence Prevention. https://www.who.int/publications/i/item/9789240013069 (accessed June 2026).

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