Frontal Sinus Fractures – Causes, Symptoms, Treatment

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 15 min read
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Frontal Sinus Fractures are located within the frontal bone, superior and medial to the orbits. The frontal sinuses begin developing around 5 to 6 years old and become fully developed between the ages of 12 to 20. They are innervated by both the supraorbital and...

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বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

Frontal Sinus Fractures are located within the frontal bone, superior and medial to the orbits. The frontal sinuses begin developing around 5 to 6 years old and become fully developed between the ages of 12 to 20. They are innervated by both the supraorbital and supratrochlear nerves, which are supplied by the ophthalmic branch of the trigeminal nerve. Their blood supply comes from the supraorbital...

Key Takeaways

  • This article explains Causes of Frontal Sinus Fractures in simple medical language.
  • This article explains Diagnosis of Frontal Sinus Fractures in simple medical language.
  • This article explains Treatment of Frontal Sinus Fractures in simple medical language.
  • This article explains Complications in simple medical language.
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  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
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Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

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Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

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Definition

Frontal Sinus Fractures are located within the frontal bone, superior and medial to the orbits. The frontal sinuses begin developing around 5 to 6 years old and become fully developed between the ages of 12 to 20. They are innervated by both the supraorbital and supratrochlear nerves, which are supplied by the ophthalmic branch of the trigeminal nerve. Their blood supply comes from the supraorbital and supratrochlear arteries. The frontal sinuses consist of an anterior and posterior table (wall) and drain inferiorly and posteriorly via the frontal recess into either the middle meatus or ethmoid infundibulum depending on the attachment of the uncinate process. If the uncinate process attaches to the lamina papyracea, then the frontal sinus drains into the middle meatus via the semilunar hiatus. If the uncinate process attaches to the skull base or the middle turbinate, the sinus drains into the ethmoid infundibulum before emptying into the middle meatus. The anterior border of the frontal recess is the posterior wall of the agger nasi air cell, while the posterior wall is composed of the ethmoid bulla. The medial wall of the frontal recess is the middle turbinate, and the lateral wall is the orbit.

Frontal cranial bones have a greater thickness than the more lateral temporal bones (6.15 cm in males, 7.13 cm in females compared to 4.33 cm and 4.41 cm, respectively). As a result, these fractures require a more significant mechanism and force than other facial bone injuries, occur less frequently than other forms of skull trauma, and often present with concurrent injuries. These other concurrent injuries include frontal sinus fractures, orbital pathologies, intracranial hemorrhage, and cervical spine pathologies, to name a few. These characteristics make critical evaluation and treatment of these injuries imperative. Additionally, appropriate classification and indications for surgical repair of frontal sinus fractures remain controversial, resulting in a variety of management strategies.

Causes of Frontal Sinus Fractures

  • The most common etiologies of frontal bone fractures in adults are motor vehicle collisions (MVCs), falls, assaults, falling objects, and penetrating trauma.
  • One study of 164 patients reported MVCs as the most common etiology (31.7%) followed by sports accidents (28.0%), work accidents (20.1%), violence (3.7%), and domestic accidents (3.1%). Injury severity is variable and depends on the mechanism, fracture pattern, and involvement of surrounding anatomy.
  • In the pediatric community, MCVs were the most common etiology (25.7%), followed by sports-related injuries (16.1%), assault (14.7%), and falls (10.1%). When grouped by age range, the most common mechanism from 0 to 6.99 years old was falls (28.6%), compared with MVCs from 7 to 12.9 years old (31.9), and assaults from 13 to 18 years old.

Diagnosis of Frontal Sinus Fractures

History

Your doctor in the emergency department may ask the following questions

  • How – How was the fracture created, and, if chronic, why is it still open? (underlying etiology)
  • When – How long has this fracture been present? (e.g., chronic less than 1 month or acute, more than 6 months)
  • What – What anatomy and structure do it involve? (e.g., epidermis, dermis, subcutaneous tissue, fascia, muscle, tendon, bone, arteries, nerves). What comorbidities, economic or social factors do the patient have which might affect their ability to heal the fracture?
  • Where – Where on the body parts is it located? Is it in an area that is difficult to offload, complicated, or keep clean? Is it in an area of high skin tension? Is it near any vital organ and structures such as a major artery?
  • What is your Past – Has your previous medical history of fracture? Are you suffering from any chronic disease, such as hypertension, blood pressure, diabetes mellitus, previous major surgery? What kind of medicine did you take? What is your food habits, geographic location, Alcohol, tea, coffee consumption habit,  anabolic steroid uses for athletes, etc?

Physical Examination

Physical examination is done by your doctor, consisting of palpation of the fracture site, eliciting boney pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।" data-rx-term="tenderness" data-rx-definition="Tenderness means pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।">tenderness, edema, swelling. If the fracture is in the dept of a joint, the joint motion, normal movement will aggravate the pain.

  • Inspection – Your doctor also check superficial tissue, skin color, involving or not only the epidermal layer or Partial-thickness affects the epidermis and extend into the dermis, but full-thickness also extends through the dermis and into the adipose tissues or full-thickness extends through the dermis, and adipose exposes muscle, bone, evaluate and measure the depth, length, and width of the fracture. Access surrounding skin tissue, fracture margins for tunneling, rolled, undermining fibrotic changes, and if unattached and evaluate for signs and symptoms of infect warm, pain, delayed healing.
  • Palpation – Physical examination may reveal pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।" data-rx-term="tenderness" data-rx-definition="Tenderness means pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।">tenderness to palpation, swelling, edema, pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।" data-rx-term="tenderness" data-rx-definition="Tenderness means pain when an area is touched or pressed. সহজ বাংলা: চাপ দিলে ব্যথা।">tenderness, worm, temperature, open fracture, closed fracture, microtrauma, and ecchymosis at the site of fracture.
  • Motor function – Your doctor may ask the patient to move the injured area to assist in assessing muscle, ligament, and tendon function. The ability to move the joint means only that the muscles and tendons work properly, and does not guarantee bone integrity or stability. The concept that “it can’t be fractured because you can move it” is not correct. The jerk test and manual test are also performed to investigate the motor function.
  • Sensory examination – assesses sensations such as light touch, worm, paresthesia, itching, numbness, and pinprick sensations, in its fracture side.
  • Range of motion – A range of motion examination of the fracture associate joint and it’s surrounding joint may be helpful in assessing the muscle, tendon, ligament, cartilage stability. Active assisted, actively resisted exercises are performed around the injured area joint.
  • Blood pressure and pulse check – Blood pressure is the term used to describe the strength of blood with which your blood pushes on the sides of your arteries as it’s pumped around your body. An examination of the circulatory system, feeling for pulses, blood pressure, and assessing how quickly blood returns to the tip of a toe to heart and it is pressed the toe turns white (capillary refill).
  • Per the Advanced Trauma Life Support (ATLS) protocol, the evaluation of trauma patients begins with an assessment of the patient’s airway, respiratory capacity, and circulatory status. While assessing the extent of the patient’s disabilities, a thorough neurologic exam should be performed to calculate a Glasgow Coma Scale Score, assessing for cranial nerve function as well as other focal deficits and bony injury to the calvarium.
  • The provider should inspect the entire head and neck for any lesions, abrasions, contusions, or active bleeding. It is important to assess for lacerations superficial to any sinus fractures, indicating the requirement of IV antibiotics. The anterior table of the frontal sinus should be palpated to determine if there is any bony step off, and any wounds or lacerations should be cleaned and explored.
  • Examination of the ears can reveal battle sign, auricular hematomas, cerebrospinal fluid (CSF) otorrhea, or hemotympanum, suggesting the involvement of the skull base. A nasal examination should check for the mobility of the nasal bones, frank epistaxis, CSF rhinorrhea, septal hematomas, or active purulence. Examination of the orbit should include appropriate cranial nerve testing and inspection for raccoon eyes or retrobulbar hematoma.

Evaluation

  • After obtaining a comprehensive history and physical exam, the most important test to determine structural involvement and subsequent management is a non-contrast computed tomography scan (CT) of the head and facial bones. Various windows are available through CT imaging (osseous, soft tissue, heme windows), which make the evaluation of these and related injuries rapid and reliable.
  • If CT is available and performed, there is no evidence showing any additional benefit from radiographs. Angiography can be considered if the provider is concerned about possible vascular involvement. Ultrasound has the ability to detect fractures with the use of the linear probe in a superficial mode; however, this should be viewed as an adjunct to the previously mentioned modalities.
  • Currently, there is no general consensus on the classification of frontal sinus fractures. One-third of all frontal sinus fractures include both the anterior and posterior tables of the frontal sinus, whereas two-thirds involve the anterior table only, and less than 1% involve only the posterior table. Below are some widely accepted classification systems of these fractures:

In 1997, Gonty et al. classified frontal sinus fractures into the following categories. A retrospective review of 158 patients by Gerbino et al. was performed using Gonty’s classification system and reported the percentage of patients with each type of fracture.

  • Anterior table involvement (61.4%)
  • Anterior and posterior table involvement (33%)
  • Posterior table involvement (0.6%)
  • “Through and through,” which are defined as comminuted with the involvement of the orbit, ethmoids, and nasal base (2.5%)
  • Fractures involving nasofrontal duct (2.5%)

Presented a classification and treatment schema that is based on maximal metric dislocation and involvement of surrounding structures (nasolacrimal system, orbit, CSF leak, or surrounding bone fracture). In their study of 164 patients, they classified fracture patterns into four types with Type A being most common (38.4%) followed by type B (22.6%), type C (14%), and type D (25%).

  • Type A: No displacement
    •  Observation
  • Type B: 0 to 2 mm displacement
    • No concomitant injury – observation
    • Concomitant injury – surgical repair
  • Type C: 2 to 5 mm displacement
    • No concomitant injury – observation
    • Concomitant injury – surgical repair
  • Type D: greater than 5 mm displacement
    • Surgical repair
  • CT of the brain with thin bone algorithm images is a routine part of the assessment of the head and neck in the setting of trauma and is ideal for the identification of fractures of the paranasal sinus.
  • If a fracture is visualized care should be taken to assess whether the anterior table (between sinus and scalp), posterior table (between sinus and dura), or both are involved, and to note the degree of displacement 1. Presence of pneumocephalus, particularly if intradural (subarachnoid) is important as it increases the risks of subsequent CSF leak, meningitis and mucocoeles due to trapped mucosal elements.

Treatment of Frontal Sinus Fractures

Treatment plans for these patients can vary immensely bared on their related injuries. Nondisplaced anterior table fractures can be monitored with observation and close practitioner followup. In the case of frontal sinus fracture with an overlying laceration (deemed open fracture), it is imperative to administer appropriate antibiotics and tetanus prophylaxis/immunoglobulin as indicated. If there is involvement of the anterior table without intracranial communication, IV amoxicillin-sulbactam BID is sufficient. The addition of a third-generation cephalosporin is appropriate if there is a displaced posterior table fracture. Surgical options, which will be described below, can include frontal sinus ablation/obliteration, closed fracture reductions, cranialization, open reduction internal fixation (ORIF), and conservative management with observation. As previously mentioned, classification and treatment guidelines are not universal, which could account for variations in patient management. Despite this lack of consensus, a posterior table fracture with greater than 5mm of displacement is generally accepted as an absolute surgical indication. Most procedures should take place within 12 to 48 hours, from initial presentation barring any more life-threatening injuries.

Do no HARM for 72 hours after injury

  • Heat—hot baths, electric heat, saunas, heat packs, etc has the opposite effect on the blood flow. Heat may cause more fluid accumulation in the fracture joints by encouraging blood flow. Heat should be avoided when inflammation is developing in the acute stage. However, after about 72 hours, no further inflammation is likely to develop and heat can be soothing.
  • Alcohol stimulates the central nervous system that can increase bleeding and swelling and decrease healing.
  • Running, and walking may cause further damage, and causes healing delay.
  • Massage also may increase bleeding and swelling. However, after 72 hours of your fracture, you can take a simple message, and applying heat may be soothing the pain.

Medication

The following medications may be considered by your doctor to relieve acute and immediate pain, long term treatment

What To Eat and What  to avoid

Eat Nutritiously During Your Recovery

All bones and tissues in the body need certain micronutrients in order to heal properly and in a timely manner. Eating a nutritious and balanced diet that includes lots of minerals and vitamins is proven to help heal broken bones and all types of fractures. Therefore, focus on eating lots of fresh food produce (fruits and veggies), whole grains, cereal, beans, lean meats, seafood, and fish to give your body the building blocks needed to properly repair your fracture. In addition, drink plenty of purified mineral water, milk, and other dairy-based beverages to augment what you eat.

  • Broken bones or fractures bones need ample minerals (calcium, phosphorus, magnesium, boron, selenium, omega-3) and protein to become strong and healthy again.
  • Excellent sources of minerals/protein include dairy products, tofu, beans, broccoli, nuts and seeds, sardines, sea fish, and salmon.
  • Important vitamins that are needed for bone healing include vitamin C (needed to make collagen that your body essential element), vitamin D (crucial for mineral absorption, or machine for mineral absorber from your food), and vitamin K (binds calcium to bones and triggers more quickly collagen formation).
  • Conversely, don’t consume food or drink that is known to impair bone/tissue healing, such as alcoholic beverages, sodas, fried fast food, most fast food items, and foods made with lots of refined sugars and preservatives.

Observation with Close Follow-Up

  • Minimally displaced anterior table fractures (<1-2 mm), without nasofrontal recess injury

Closed Fracture Reductions/Minimally Invasive

  • Various minimally invasive techniques exist for the closed repair of anterior table fractures. This type of repair often results in favorably aesthetic outcomes.
  • Both percutaneous screws and inflating a foley catheter within the sinus have been reported as means of fracture reduction.

Open Reduction Internal Fixation (ORIF)

  • It is generally indicated for fractures of the anterior table (>2 mm) without the involvement of the nasofrontal recess or in patients with an obvious cosmetic forehead deformity.
  • Surgeons attempting this approach must be able to obtain adequate visualization and access to the sinus to perform the proper repair while considering aesthetic outcomes for the patient. These can be approached either endoscopically or in an open fashion depending on the extent of the fracture and surgeon preference.
  • This approach uses small metal plates (microplates) and screws to secure the bony fragments. In some cases, reduction screws can be used to support the bone without fixation.

Frontal Sinus Obliteration/Ablation

  • This procedure can be indicated in patients who have comminuted anterior table fractures with a linear nondisplaced posterior table fracture or involvement with the frontonasal duct. Another indication is a significant mucosal disruption of the sinus or severely comminuted fracture of the anterior table.
  • This entails the removal of all sinus mucosa, occlusion of the nasofrontal duct, and filling the sinus cavity with bone grafts or other materials.
    • Hydroxyapatite, pericranial flap obliteration, adipose tissue, calcium phosphate, and glass ionomer can also be used as grafting material.
  • A potential complication of this procedure is a mucocele secondary to incomplete removal of the mucosa during obliteration. If left untreated, mucocele growth can cause further bony destruction.

Cranialization

  • It is generally indicated for posterior table fractures with significant displacement or comminution, intracranial injury, or CSF leak.
  • It involves removing the entire frontal sinus contents, including the mucosa, external debris, bone fragmentation, and the posterior table of the frontal sinus. Any anterior table defects must be reconstructed to further protect the brain and dura that have herniated into the frontal sinus.

Complications

Complications of frontal sinus fractures are typically divided into two categories based on chronicity: acute (less than 6 weeks) or chronic (greater than 6 weeks), but complications overlapping these timeframes can happen. These include but are not limited to:

  • Frontal sinusitis
  • Meningitis
  • Cerebrospinal fluid leak
  • Mucocele
  • Mucopyocele
  • Osteomyelitis
  • Pneumocephalus
  • Poor aesthetic outcome
  • Brain abscess
  • Chronic frontal headaches
  • Extrusion of graft material
  • Intracranial hemorrhage
  • Diplopia
  • Ophthalmoplegia
  • Blindness
  • Paresthesia of the supraorbital, infraorbital, and/or supratrochlear nerves
  • Hypoesthesia or paresthesia of the ophthalmic nerve (V1) or maxillary nerves (V2)
  • Facial deformity

References

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What to tell the doctor

  • Write when the problem started and how it changed.
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Questions to ask

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Tests to discuss

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Safe first steps

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  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

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Doctor to discuss: Orthopedic / spine specialist, physical medicine doctor, or qualified clinician
Tests to discuss with doctor
  • Neurological examination for leg power, sensation, reflexes, and straight leg raise
  • X-ray only if injury, deformity, long-lasting pain, or doctor suspects bone problem
  • MRI discussion if severe nerve symptoms, weakness, bladder/bowel problem, or persistent symptoms
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?
  • Is physiotherapy, posture correction, or activity modification needed?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Frontal Sinus Fractures – Causes, Symptoms, Treatment

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

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Frequently Asked Questions

Is this article a replacement for a doctor?

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When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

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