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Craniofacial Conditions

Comprehensive information about genetic and developmental craniofacial conditions, including Apert, Crouzon, Treacher Collins, Hemifacial Microsomia, and Goldenhar syndrome.

Apert Syndrome

1 in 65,000 – 88,000 birthsFGFR2 gene mutation (usually sporadic, not inherited)

Apert syndrome is a rare genetic condition characterized by the premature fusion of certain skull bones (craniosynostosis), midface underdevelopment, and fusion of the fingers and toes (syndactyly). Children with Apert syndrome require a multidisciplinary team approach with staged surgeries over many years.

Clinical Features

Craniosynostosis — typically bilateral coronal suture fusion, causing a tall, flat skull

Midface hypoplasia — underdeveloped midface with shallow eye sockets and a concave facial profile

Syndactyly — fusion of fingers and toes (often complex, involving bone fusion)

Elevated intracranial pressure in many cases

Obstructive sleep apnea due to midface retrusion and narrow airway

Hearing loss and chronic ear infections

Dental crowding and malocclusion

Variable cognitive development (many children have normal intelligence with appropriate intervention)

Treatment Options

Cranial Vault Remodeling (6–12 months)

Surgical reshaping of the skull to relieve intracranial pressure and improve head shape. This is typically the first major surgery.

Hand Surgery for Syndactyly

Staged surgeries to separate fused fingers and improve hand function. Typically performed in the first 1–2 years of life.

Midface Advancement (4–12 years)

Le Fort III osteotomy or monobloc advancement with distraction osteogenesis to move the midface forward, improving breathing, eye protection, and facial appearance.

Orthognathic Surgery (teens)

Jaw surgery after facial growth is complete to correct bite alignment and facial proportions.

Rhinoplasty & Refinement

Nasal surgery and other soft tissue refinements to improve facial aesthetics after skeletal procedures are complete.

Crouzon Syndrome

1 in 25,000 birthsFGFR2 gene mutation (autosomal dominant — can be inherited or sporadic)

Crouzon syndrome is a genetic condition characterized by premature fusion of skull sutures and underdevelopment of the midface. Unlike Apert syndrome, Crouzon syndrome does not involve hand or foot anomalies. The severity varies widely, and treatment is tailored to each child's specific needs.

Clinical Features

Craniosynostosis — often multiple sutures involved (coronal, sagittal, lambdoid)

Midface hypoplasia — flat or concave midface with shallow eye sockets

Proptosis — bulging eyes due to shallow orbits, increasing risk of corneal exposure

Obstructive sleep apnea from midface retrusion

Possible hydrocephalus (excess fluid around the brain)

Hearing loss (conductive) from middle ear abnormalities

Normal hands and feet (distinguishing feature from Apert syndrome)

Usually normal intelligence

Treatment Options

Cranial Vault Remodeling

Reshaping of the skull to relieve intracranial pressure and normalize head shape. May include posterior vault distraction for severe cases.

VP Shunt (if needed)

If hydrocephalus is present, a ventriculoperitoneal shunt may be placed to drain excess cerebrospinal fluid.

Midface Advancement / Le Fort III

Surgical advancement of the midface using distraction osteogenesis to improve breathing, protect the eyes, and enhance facial appearance.

Orbital Decompression

If the eyes are severely protruding, surgery to enlarge the eye sockets may be needed to protect the corneas.

Orthognathic Surgery & Rhinoplasty

Final surgical refinements after facial growth is complete to optimize bite alignment and nasal appearance.

Treacher Collins Syndrome

1 in 50,000 birthsTCOF1 gene mutation (autosomal dominant — 60% sporadic, 40% inherited)

Treacher Collins syndrome (mandibulofacial dysostosis) is a genetic condition that affects the development of bones and tissues of the face. It is characterized by underdeveloped cheekbones and jawbone, downward-slanting eyes, and ear deformities. The severity varies greatly — some children are mildly affected while others require extensive reconstruction.

Clinical Features

Malar hypoplasia — underdeveloped or absent cheekbones

Micrognathia — small, receding lower jaw that can cause airway obstruction

Downward-slanting palpebral fissures (eye openings) with colobomas (notches) of the lower eyelids

External ear deformities (microtia) — small, malformed, or absent ears

Conductive hearing loss due to middle ear and ear canal abnormalities

Cleft palate in approximately 35% of cases

Normal intelligence in most cases

Potential airway compromise in severe cases requiring early intervention

Treatment Options

Airway Management

In severe cases, the small jaw can obstruct the airway. Mandibular distraction osteogenesis may be performed in infancy to gradually lengthen the jaw and open the airway, potentially avoiding a tracheostomy.

Ear Reconstruction

Reconstruction of the external ear using rib cartilage framework (typically at age 6–10) or prosthetic ear options. Bone-anchored hearing aids (BAHA) may be used to address hearing loss.

Cheekbone & Orbital Reconstruction

Surgical reconstruction of the cheekbones and orbital rims using bone grafts, custom implants, or fat grafting to restore facial contour and symmetry.

Eyelid Surgery (Coloboma Repair)

Surgical repair of lower eyelid notches to improve eye protection and appearance.

Jaw Surgery (Orthognathic)

Mandibular and/or maxillary surgery in the late teens to correct jaw alignment and improve facial proportions after growth is complete.

Cleft Palate Repair (if present)

Standard cleft palate repair at 9–12 months if a cleft palate is part of the condition.

Hemifacial Microsomia

1 in 3,500 – 5,600 birthsUsually sporadic (not inherited); cause often unknown

Hemifacial microsomia is the second most common craniofacial birth difference after cleft lip and palate. It involves underdevelopment of the structures on one side of the face, including the jaw, ear, and soft tissues. The severity is classified using the OMENS system (Orbit, Mandible, Ear, Nerve, Soft tissue). Treatment is individualized based on the degree of involvement.

Clinical Features

Asymmetric jaw — one side of the mandible is smaller or underdeveloped

Ear anomalies — ranging from small ear (microtia) to skin tags to absent ear

Facial nerve weakness on the affected side (in some cases)

Soft tissue deficiency — less muscle and fat on the affected side

Orbital asymmetry — one eye socket may be smaller or positioned differently

Macrostomia — widened mouth opening on the affected side (in some cases)

Hearing loss on the affected side

Usually unilateral, but can be bilateral (10–15% of cases)

Treatment Options

Mandibular Distraction Osteogenesis

A device is attached to the jaw bone, and the bone is gradually lengthened over several weeks. This can be performed in infancy for airway issues or later in childhood to improve jaw symmetry.

Costochondral Rib Graft

A section of rib cartilage is used to reconstruct the jaw joint (TMJ) and ramus in cases where the jaw is severely underdeveloped or the joint is absent.

Fat Grafting

Fat is harvested from another area of the body and injected into the deficient side of the face to improve soft tissue volume and symmetry. Multiple sessions may be needed.

Ear Reconstruction

For children with microtia, ear reconstruction using rib cartilage framework or prosthetic options. Hearing aids may also be recommended.

Orthodontics & Orthognathic Surgery

Comprehensive orthodontic treatment combined with jaw surgery in the late teens to achieve optimal bite alignment and facial symmetry.

Goldenhar Syndrome

1 in 3,500 – 25,000 birthsUsually sporadic; considered a variant of hemifacial microsomia

Goldenhar syndrome (oculo-auriculo-vertebral spectrum) is a condition related to hemifacial microsomia but with additional features including eye abnormalities and vertebral anomalies. It affects the development of the ear, mouth, and spine, primarily on one side of the body. Treatment addresses both the facial and spinal components.

Clinical Features

All features of hemifacial microsomia (jaw, ear, soft tissue underdevelopment)

Epibulbar dermoids — benign growths on the surface of the eye

Upper eyelid colobomas (notches)

Vertebral anomalies — fused, missing, or abnormally shaped vertebrae

Pre-auricular skin tags or pits

Cardiac defects in some cases

Kidney abnormalities in some cases

Variable severity — some children are mildly affected, others significantly

Treatment Options

Facial Reconstruction

Similar to hemifacial microsomia treatment — mandibular distraction, fat grafting, ear reconstruction, and orthognathic surgery as needed.

Epibulbar Dermoid Removal

Surgical removal of eye surface growths by an ophthalmologist when they affect vision or cause discomfort.

Spinal Monitoring & Treatment

Regular monitoring of the spine for scoliosis or instability. Bracing or surgery may be needed for significant vertebral anomalies.

Cardiac & Renal Evaluation

Screening for heart and kidney abnormalities with appropriate specialist follow-up.

Hearing Rehabilitation

Hearing aids, bone-anchored hearing devices, or surgical intervention for hearing loss.

A Team Approach to Complex Care

Children with craniofacial syndromes benefit from a coordinated team of specialists who work together over many years. Dr. Chaiyasate leads the surgical planning and collaborates with pediatricians, neurosurgeons, ophthalmologists, ENT specialists, orthodontists, speech therapists, audiologists, geneticists, and psychologists to ensure comprehensive care.

Each child's treatment plan is individualized based on their specific condition, severity, and developmental needs. The goal is not just to improve appearance, but to optimize function — breathing, eating, hearing, speech, and vision — and to support the child's overall well-being and quality of life.

Schedule a Consultation

Dr. Chaiyasate and his team are here to answer your questions and discuss the best treatment options for you or your child.