Treacher Collins Syndrome in Adults: Cheekbones, Jaw Surgery, Eyelid Notches, Ear Reconstruction, Rhinoplasty, Fat Grafting, and the Airway

He is 31 and has a list. He wants filler in his cheeks, because the hollows below his eyes make him look tired in every photograph. He wants the outer corners of his lower eyelids lifted. He would like a smaller nose and, if there is time, a chin implant. He mentions that he had a tracheostomy as a baby, that he snores loudly enough that his partner sleeps in another room, and that he wears a bone-conduction hearing device on a headband. He had a series of operations as a child for a condition called Treacher Collins syndrome, and he stopped going to the craniofacial clinic at 18. The first practice he contacted offered to do the filler, the eyelids, and the chin implant in one office visit under sedation.

Treacher Collins syndrome is a genetic condition that affects how the bones and soft tissues of the face develop before birth. It is usually estimated to occur in about 1 in 50,000 births. It is bilateral, meaning both sides of the face are involved, usually fairly symmetrically, which distinguishes it from the one-sided condition covered in the piece on hemifacial microsomia in adults. Intelligence is typically unaffected. Many adults with Treacher Collins have careers, families, and no wish to change anything. Others, like the man above, arrive at a cosmetic practice with requests that sound routine but sit on top of an unusual skeleton and, often, an unusual airway. This piece covers what an adult should know before any cosmetic procedure, what each area of the face can and cannot gain from surgery or injectables, and the order in which it makes sense to proceed.

Treacher Collins syndrome in adults: what has to be known before any cosmetic procedure

The short answer: Before any elective procedure, an adult with Treacher Collins syndrome needs a current picture of three things: the airway, the record of prior surgery (including what was grafted or implanted where), and the underlying bone, usually from a CT scan, because the features that look like soft-tissue problems are mostly skeletal.

The condition is caused by changes in genes that help build ribosomes, the protein factories of cells, during early facial development. The most common cause is a change in the gene TCOF1, inherited in an autosomal dominant pattern, which means an affected parent has a 50 percent chance of passing it to each child. Less commonly, changes in POLR1C, POLR1D, or POLR1B are responsible, and some of these follow a recessive pattern. A majority of cases arise as new changes, with no family history. The severity varies enormously, even within one family: a parent may have features so mild that nobody noticed until a child was diagnosed. Adults planning a family can ask a genetics clinic about testing and the reproductive options available, and the general case for knowing genetic results before elective surgery is laid out in the piece on family history, BRCA, and cosmetic breast surgery.

The typical features, in roughly the order a surgeon will assess them:

• Underdeveloped cheekbones and orbits. The zygomatic bones (the cheekbones) are small or partly absent, and the zygomatic arches that run toward the ear may be missing. The lower and outer rims of the eye sockets are deficient. This is the main reason the face looks flat or hollow in the midface.
• Downward-slanting eyes and lower eyelid notches. The outer corners of the eyes sit low, and many patients have a notch in the outer part of the lower eyelid called a coloboma, often with missing lashes toward the inner side of the notch.
• A small, retruded lower jaw. The mandible is short, the chin sits back, and the jaw angle is steep. Many patients have an open bite, where the front teeth do not meet. The jaw joints themselves may be small or malformed.
• Ear differences and hearing loss. The outer ears may be small, misshapen, or absent (microtia), and the ear canals may be narrow or closed. Conductive hearing loss is common, which is why many adults use bone-conduction or bone-anchored hearing devices.
• Cleft palate in a substantial minority, and a nose that can look prominent because the cheeks around it are flat.
• Hair that extends forward from the sideburn onto the cheek in some patients.

The National Institutes of Health's Genetic and Rare Diseases Information Center and the clinical summaries in GeneReviews describe this same constellation, and the American Cleft Palate-Craniofacial Association (ACPA) sets the standard that people with craniofacial conditions be treated by interdisciplinary teams. Most adults with Treacher Collins were followed by such a team as children. Many, like the man above, left that care at 18 and have not been back. Returning to a craniofacial center for an adult assessment is the most useful first step, even if the eventual surgery happens elsewhere, because those centers keep records, imaging, and operative notes that an outside cosmetic practice will need.

Those records matter more than they would for most patients. A childhood cheek reconstruction may have used bone grafts taken from the skull or ribs; some of that bone may have resorbed over the years, some may be fixed with plates and screws, and the scar tissue around it changes how filler or fat behaves. The same logic applies to anyone with previous facial bone work, discussed in the piece on old facial fractures and cosmetic surgery. A modern CT scan with three-dimensional reconstruction shows what bone is present, where hardware sits, and how much room there is for an implant or a graft. It also allows the kind of planning described in the piece on 3D imaging at consultation, which is especially useful when the skeleton itself is the thing being changed.

The airway decides where, how, and in what order

The short answer: Many adults with Treacher Collins syndrome have obstructive sleep apnea and are difficult to intubate, so any procedure involving sedation or general anesthesia should happen in a facility equipped for a difficult airway, with an anesthesiologist who has reviewed the history in advance, never as casual office sedation.

The small jaw pulls the tongue back toward the throat, and the underdeveloped midface and nasal passages narrow the airway from above. The result is that obstructive sleep apnea is common in Treacher Collins, in childhood and often into adulthood, and many patients had tracheostomies, jaw-lengthening procedures, or both as infants. The same anatomy makes placing a breathing tube difficult. A small mouth opening, a retruded jaw, limited jaw joint movement, and a high, narrow palate can make the standard view of the vocal cords impossible to obtain. Reports in the anesthesia literature describe intubation in some patients becoming harder, not easier, with age.

For a cosmetic patient, this translates into specific requirements:

• A sleep study if one has not been done recently, especially with loud snoring, witnessed pauses in breathing, or daytime sleepiness. Untreated sleep apnea raises the risk of breathing problems after sedation and opioid pain medication, and the general issues are covered in the piece on sleep apnea before cosmetic surgery. Patients who use CPAP should bring the machine on the day of surgery.
• An anesthesia consultation before the day of surgery, with previous anesthesia records. The American Society of Anesthesiologists' difficult airway guidelines call for a planned strategy, often awake intubation with a flexible scope or video laryngoscope, along with backup plans. A patient who has had a tracheostomy should tell the anesthesiologist, because the scar and any narrowing of the windpipe affect the plan.
• An accredited hospital or surgical facility, not an office procedure room. The difference matters most for the patient who seems to need only a little sedation. Deep sedation without a secured airway is precisely the situation in which a difficult airway becomes an emergency, a point developed in the piece on anesthesia choice and the operative plan.
• Thinking about combining. Each general anesthetic carries the airway risk again. That is an argument for consolidating procedures sensibly when it is safe to do so, under one well-planned anesthetic, rather than collecting a series of small sedated sessions. It is also an argument against piling too many hours into one sitting. The surgeon and anesthesiologist should decide together.

The airway also shapes which surgery comes first. Jaw surgery that moves the lower jaw and chin forward, described below, enlarges the space behind the tongue and is one of the main treatments for sleep apnea in adults with small jaws. For a patient who has both sleep apnea and a cosmetic concern about the chin, that operation may address both at once, and it should be considered before anyone places a chin implant that would only change the surface.

Injectables are different. Fillers and neuromodulators under local anesthesia do not involve the airway, and a patient with Treacher Collins can receive them in an office setting. The cautions that apply to them are anatomical, and they are covered in the section on the cheeks.

The jaw, the chin, and the nose: bone first, then the surface

The short answer: In an adult with Treacher Collins syndrome, a recessed chin and a nose that looks too large are usually symptoms of a small jaw and flat midface, so orthognathic surgery, often with rotation of both jaws, typically comes before any chin implant or rhinoplasty, and it frequently improves breathing as well as appearance.

The lower jaw in Treacher Collins is not just short. It is rotated: the jaw angle is steep, the back of the jaw is short, and the front of the face is long, which tips the chin down and back. Many patients have an open bite as a result. A chin implant can push the chin's surface forward a few millimeters, but it does not change the rotation, the bite, the airway, or the steep angle of the jaw, and on a severely retruded jaw it can look like a button on a slope. The difference between surface contouring and skeletal surgery is the subject of the piece on orthognathic jaw surgery versus jawline treatments.

The skeletal options in adults include:

• Orthognathic surgery, usually a combination of a Le Fort I osteotomy (which repositions the upper jaw) and a bilateral sagittal split osteotomy (which moves the lower jaw), with orthodontic work before and after. In Treacher Collins, surgeons often perform a counterclockwise rotation of the whole upper and lower jaw unit, which lifts the chin forward and up, closes an open bite, and opens the airway behind the tongue. Published series of adults and teenagers with mandibular hypoplasia report meaningful improvements in airway measurements after this kind of movement.
• Sliding genioplasty, which cuts and advances the chin bone itself and can be combined with jaw surgery. The principles are discussed in the piece on chin augmentation and facial harmony.
• Jaw joint reconstruction. Some patients have very small or malformed jaw joints, and in adults a custom total joint replacement may be part of the plan. Anyone with jaw pain, clicking, or limited opening should have the joints assessed first, as described in the piece on TMJ disorder and cosmetic facial surgery.

Jaw surgery requires orthodontic preparation that can take a year or more, which should be planned around any other dental work, and the timing issues for braces, aligners, and dental implants are covered in the piece on orthodontics and facial cosmetic surgery. It also requires an airway plan that accounts for swelling after surgery; some centers keep patients with difficult airways intubated overnight or monitor them in intensive care.

The nose. The nose in Treacher Collins often looks large, with a prominent bridge, mostly because the cheeks on either side are flat and the chin is set back. Moving the jaws changes the nose's apparent size and the way the base of the nose sits, because a Le Fort I osteotomy alters the nasal floor and the width of the nostrils. That is the main reason surgeons generally schedule rhinoplasty after jaw surgery and after any cheek augmentation, not before. Some patients also have narrowed nasal passages or a narrowing at the back of the nose, so the rhinoplasty should address breathing as well as shape, as described in the piece on functional rhinoplasty. Patients who had a cleft palate repair should read the piece on adult cleft lip and nose revision, since some of the same structural issues apply.

Cheeks and eyelids: augmentation, fat, filler, and the notch in the lower lid

The short answer: The flat cheeks and downward-slanting eyelids of Treacher Collins syndrome come from missing bone, so lasting improvement usually requires rebuilding the cheekbone and orbital rim with grafts or custom implants before tightening or lifting the eyelids, and standard cosmetic lower blepharoplasty is risky because the lower lid has less support than usual.

Rebuilding the cheek. Many patients had their cheekbones and orbital rims reconstructed in childhood with bone grafts, commonly from the outer layer of the skull. Grafts in this area tend to resorb partly over time, so an adult may find that the fullness achieved at age eight has faded. Adult options include:

• Patient-specific implants. Implants made of materials such as porous polyethylene or PEEK can be designed from a CT scan to replace missing cheekbone, arch, and orbital rim. They give predictable projection and avoid a donor site, but they carry a lifelong risk of infection or exposure, especially under thin or scarred skin. The general tradeoffs are covered in the piece on cheek and jaw implants.
• Repeat bone grafting, from the skull, ribs, or hip, which incorporates into the body but may resorb again to some degree.
• Fat grafting, often in multiple sessions, either alone for mild cases or on top of a bony reconstruction to soften contour. In Treacher Collins the soft tissue over the cheek is often thin as well as the bone being deficient, so fat improves texture and fullness but cannot recreate a cheekbone by itself. Some fat does not survive each session, as explained in the piece on fat graft survival biology, and the options for more robust tissue are discussed in the piece on dermal fat grafts versus fat transfer.
• Microvascular tissue transfer, in which a block of tissue from elsewhere in the body is moved with its blood supply and reconnected under a microscope. It is reserved for severe soft-tissue deficiency and is performed at specialized centers.

Filler, with caveats. Hyaluronic acid filler is a reasonable way to test what added cheek volume would look like, and some adults prefer it to surgery. Three cautions apply. First, filler placed on a deficient skeleton has nothing firm to sit on, so it tends to spread rather than project, and large volumes can look heavy or migrate, a pattern described in the piece on filler migration. Second, faces with congenital skeletal differences can have atypical blood vessel courses, and previous surgery adds scar tissue that can trap filler and alter the anatomy; the injector should know about the condition and should understand the warning signs and treatment plan described in the piece on filler vascular occlusion risk. Third, filler near prior grafts or implants should be placed with knowledge of where they sit, since an injection into an area with hardware can introduce infection.

"In Treacher Collins syndrome, the hollow under the eye and the low outer corner of the eyelid are usually missing bone, not loose skin. Treating them as a routine cosmetic eyelid problem is how a lid that was barely supported loses the support it had."

The lower eyelids. The outer lower lid in Treacher Collins often has a coloboma, a notch where tissue is missing, and the lid as a whole sits low because the lateral orbital rim and the outer canthal tendon attachment are deficient. Many patients had a lid reconstruction in childhood. In adults, the requests are usually to raise the outer corner, to make the notch less visible, and to reduce show of the white of the eye below the iris.

These problems are structural. Lifting the outer corner of the eye with a canthopexy or canthoplasty, the procedures behind the "fox eye" trend discussed in the piece on canthoplasty, works poorly if the bone the tendon should attach to is missing; the corner tends to slide back down. Surgeons experienced with craniofacial patients usually rebuild the lateral orbital rim first, then reattach the canthus to it, then repair the lid with flaps of skin and muscle, sometimes with a cartilage or palate graft for internal support. That sequence is why eyelid work generally comes after cheek and orbital augmentation in an adult plan.

A standard cosmetic lower blepharoplasty, which removes skin or fat from the lower lid, can be harmful. Removing skin from a lid with poor support risks pulling it downward into ectropion or lid retraction, the problems described in the pieces on entropion and ectropion and lower lid retraction after blepharoplasty. Many patients with Treacher Collins already have some degree of eye exposure and dryness because the lids do not close fully over the eye, and lowering the lid further can damage the cornea. An eye examination before any eyelid procedure, and attention to the issues in the piece on dry eye after eyelid surgery, should be standard.

Ears, hearing devices, and the smaller details people care about

The short answer: Adult ear reconstruction in Treacher Collins syndrome uses rib cartilage, a porous implant framework, or an implant-retained prosthesis, and the plan should be coordinated with any bone-anchored hearing device, because the device's position can use up skin and space a reconstructed ear will later need.

The outer ear. Many adults with Treacher Collins had ear reconstruction in childhood, and some are unhappy with the result: a framework that looks flat, a position that sits too low, or scarring around the ear. Others never had reconstruction. The main options are:

• Autologous reconstruction with rib cartilage, usually in two or more stages. The framework is carved from the patient's own cartilage and placed under the skin. It is durable and becomes part of the body, but adult cartilage is stiffer and more calcified than a child's, which makes carving harder, and the rib donor site leaves a chest scar.
• Porous polyethylene frameworks, which avoid the rib harvest and can be done in fewer stages but carry a risk of exposure or infection over the patient's lifetime, often requiring coverage with a flap of tissue from the side of the head.
• Implant-retained prostheses, in which a lifelike silicone ear attaches to small titanium anchors in the skull, by magnets or clips. They look very realistic and are a good choice when local skin is scarred from prior surgery, but they need daily care and periodic replacement.

Revision of a previous reconstruction is a specialized field, and a patient should seek a surgeon who performs many ear reconstructions rather than one who does occasional cosmetic ear surgery. The procedure most cosmetic practices offer, the ear pinning described in the piece on otoplasty, addresses a different problem entirely.

Hearing devices. Because the conductive hearing loss in Treacher Collins comes from the outer and middle ear, many patients benefit from bone-conduction hearing: devices worn on a headband, or surgically implanted systems that transmit sound through the skull. The implanted versions require a site behind or above the ear. If that site is chosen without considering a future ear reconstruction, it can sit right where the reconstructed ear or its skin flap needs to go. The hearing team and the reconstructive surgeon should agree on the plan before either operation. Patients with hearing devices planning facial surgery near the ear should also read the piece on hearing aids, cochlear implants, and facelift incisions, which covers electrocautery precautions and how to handle devices during recovery.

The smaller details. Some of the changes adults with Treacher Collins ask for most are not major operations at all:

• Hair on the cheek. Hair that grows forward from the sideburn onto the cheek can be reduced with laser hair removal, which works on dark hair in the usual way. Patients who want to add hair, such as fuller eyebrows or a beard to camouflage a short chin, can consider the options in the piece on eyebrow and beard transplants.
• Scars from childhood surgery. Scars from lid reconstruction, tracheostomy, rib harvest, or jaw-lengthening devices can often be improved with revision, laser, or medical tattooing, using the approaches in the piece on scar care after plastic surgery.
• Missing lower eyelashes inside the coloboma area can sometimes be camouflaged with cosmetic tattooing of the lash line or, in selected cases, eyelash grafting.

None of these replace the larger reconstructive questions, but for some adults they make a bigger day-to-day difference than another major operation.

The honest summary

Treacher Collins syndrome does not rule out cosmetic surgery, and many adults who had extensive childhood reconstruction can still gain a great deal from adult procedures. What changes is the sequence and the setting.

The airway comes first. Sleep apnea and difficult intubation are common, and they can get harder with age. A sleep study, an anesthesia consultation with old records in hand, and an accredited facility prepared for a difficult airway are prerequisites for any procedure involving sedation. Office sedation for a quick chin implant or eyelid lift is not the place to discover that the breathing tube will not go in.

Then the bone. Most of the features adults want to change, the hollow cheeks, the low outer eye corners, the retruded chin, the prominent nose, are driven by underdeveloped bone. Orthognathic surgery that rotates the jaws forward can improve the profile, the bite, and the airway in one operation. Custom implants, bone grafts, and fat grafting can rebuild the cheek and orbital rim. The surface procedures, rhinoplasty, canthal tightening, fat and filler refinement, generally come after the skeleton is set, because doing them first means doing them twice.

The lower eyelid deserves particular respect. A lid that already lacks support and may not fully cover the eye is a poor candidate for a routine cosmetic blepharoplasty, and a lift of the outer corner holds up only when it has bone to anchor to. Ear reconstruction should be planned together with hearing devices, and the smaller changes, like laser hair removal, scar revision, and lash camouflage, are worth asking about alongside the larger ones.

Finally, the team. Craniofacial centers keep the records and experience these operations require, and an adult who left that care at 18 can go back. Insurance often treats reconstruction of a congenital condition differently from cosmetic surgery, so it is worth reviewing the issues in the piece on whether insurance covers plastic surgery before paying out of pocket for something that may qualify. And if the first practice you contact offers to fill, lift, and implant in one afternoon without asking about your airway, your old operations, or a CT scan, it is worth getting a second consultation.