Plastic surgery restores form and function through reconstructive procedures, cosmetic enhancements, and body contouring.
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The use of autologous rib cartilage is the most time-tested and durable method for ear reconstruction. This multistage process typically begins with harvesting costal cartilage from the patient’s chest wall, usually from the 6th, 7th, and 8th ribs, and sometimes the 9th. This cartilage provides a robust and abundant material that can be carved into intricate shapes.
The surgeon uses a template based on the patient’s healthy ear to carve the cartilage blocks into a detailed framework. This framework includes the helix, antihelix, tragus, and conchal bowl. The individual pieces are sutured together with fine wire or permanent suture to create a cohesive 3D structure.
Once the framework is assembled, it is inserted into a skin pocket at the site of the microtia. The skin is carefully draped over the cartilage, and suction drains are applied to pull the skin tight against the framework, revealing the ear’s definition. This first stage establishes the foundation of the new ear.
Subsequent stages involve elevating the ear from the side of the head, creating the retroauricular sulcus (the space behind the ear), and refining the lobule or tragus. This staged approach allows for proper blood supply and healing between steps.
For patients who wish to avoid rib harvest or are too young for autologous reconstruction, porous polyethylene (often marketed under names such as Medpor or Supor) offers an alternative. This is a synthetic, biocompatible material that is pre-manufactured into an ear framework shape.
The implant is porous, meaning it has microscopic holes that allow the patient’s own blood vessels and tissue to grow into it. This tissue ingrowth integrates the implant with the body, reducing the risk of migration and infection compared to solid silicone implants.
Because a synthetic implant cannot be placed directly under the thin skin of the microtia site (due to risk of exposure), it requires a vascularized flap for coverage. The surgeon harvests an extensive fan of tissue, called the Temporoparietal Fascia (TPF) flap, from under the scalp and wraps it around the implant.
A skin graft is then placed over the fascia flap. This method can often be completed in a single comprehensive stage or two stages, offering a faster route to the final result with excellent definition of the ear’s complex curves.
The Temporoparietal Fascia (TPF) flap is a critical component of implant-based reconstruction and salvage procedures for cartilage ears. It is a thin, robust layer of vascular tissue located beneath the scalp hair follicles but above the deep temporal fascia. The superficial temporal artery supplies it.
Harvesting this flap requires meticulous dissection to avoid damaging the hair follicles (which would cause alopecia) or the facial nerve (which controls forehead movement). The flap is rotated down like a page in a book to cover the ear framework.
This flap provides a rich blood supply that can support a skin graft placed on top of it. It is thin enough to show the details of the implant underneath but strong enough to protect it. Using the TPF flap allows surgeons to reconstruct ears even in areas with scarred or damaged skin.
Skin grafting is essential in ear reconstruction, particularly when elevating the ear or covering a fascial flap. A full-thickness skin graft consists of the epidermis and the entire dermis. This type of graft contracts less and provides a better color and texture match for the ear.
Common donor sites for full-thickness grafts include the groin, the lower abdomen, or the supraclavicular area. The choice of donor site depends on the amount of skin needed and the desire to conceal the donor scar.
Split-thickness skin grafts, which contain the epidermis and only a portion of the dermis, are sometimes used for the back of the ear or for less visible areas. These are typically harvested from the scalp or thigh. While they heal faster, they are more prone to pigmentation changes and contraction.
The success of a skin graft depends on the quality of the recipient bed. The graft must be immobilized and compressed against the vascular bed (like the TPF flap or the tissue behind the elevated ear) to establish a blood supply.
In autologous reconstruction, the ear framework initially lies flat against the side of the head. To create a natural appearance and allow for the use of glasses, the ear must be elevated. This is typically the second central stage of the surgery.
The surgeon makes an incision around the perimeter of the ear and lifts the framework away from the skull. A wedge of cartilage (banked from the first surgery) or a block of Medpor is placed behind the ear to maintain this projection.
The raw surface created on the back of the ear and the side of the head is then covered. This is usually achieved with a TPF flap turnover or simply by covering the area with a skin graft. This step creates the retroauricular sulcus, defining the ear’s projection.
For patients who are poor candidates for surgical reconstruction due to severe scarring, failed previous surgeries, or medical comorbidities, a prosthetic ear is an excellent option. Modern prosthetics are made of medical-grade silicone and are hand-painthand-paintedpatient’s skin tone perfectly.
Retention is critical for a prosthetic. The most secure method involves osseointegrated implants. Titanium screws are surgically placed into the mastoid bone of the skull. Over time, these fuse with the bone.
External abutments or a bar-and-clip system are attached to these screws. Alternatively, magnets can be used. The prosthetic ear snaps onto these attachments, providing a secure fit that allows the patient to live an active life without fear of the ear falling off. Adhesive retention is another option, but it can irritate the skin.
Canalplasty is the surgical creation or widening of the ear canal to restore natural sound conduction. An otologist performs it. The surgery involves drilling through the mastoid bone to reach the middle ear, creating a new eardrum (tympanic membrane), and lining the new canal with a skin graft.
This procedure is complex and carries risks to the facial nerve. It is performed only if CT scans show favorable anatomy and a high likelihood of hearing improvement. The timing is crucial; if performed before the external ear reconstruction, the scarring can compromise the skin needed for the framework.
Therefore, canalplasty is typically performed after the external ear framework has been placed and elevated. This sequence protects the blood supply and skin integrity required for the aesthetic reconstruction.
Tissue expansion is a technique used when there is insufficient hairless skin to cover an ear framework. This is common in cases of acquired trauma, burns, or low hairlines. An expander (a silicone balloon) is surgically placed under the skin in the mastoid region.
Over a period of weeks, the expander is gradually filled with saline solution. This process stretches the skin, increasing the surface area. It generates new, vascularized skin that can then be draped over the cartilage or synthetic framework.
While effective, tissue expansion requires multiple clinic visits for inflation and carries a risk of infection or extrusion. It adds a preliminary stage to the reconstruction process but is sometimes the only way to achieve adequate coverage without a flap.
Even in total reconstruction, standard otoplasty (ear pinning) techniques are often employed to refine the shape. Mustarde sutures are permanent mattress sutures used to create or enhance the antihelical fold. Furnas sutures are used to set the conchal bowl closer to the mastoid bone.
These techniques are applied to the cartilage framework itself during fabrication or to the contralateral normal ear to improve symmetry. Often, the normal ear is prominent or protruding, and an otoplasty is performed on it to match the projection of the reconstructed ear.
Cartilage scoring involves making partial cuts on one side of the cartilage to cause it to bend in the opposite direction. This is used to create smooth curves in the antihelix and helical rim of the framework.
For more minor acquired defects or partial reconstruction, the conchal bowl of the opposing ear or the ipsilateral ear (if present) is an excellent donor source. Conchal cartilage is naturally curved and thin, making it ideal for reconstructing the ear canal opening, the tragus, or the helical rim.
This graft can be harvested through a posterior incision, leaving minimal visible scarring and no deformity to the donor ear. It is often used as a composite graft, meaning skin is harvested attached to the cartilage, to repair rim defects from tumor excision or trauma.
Local skin flaps involve rotating or advancing skin from the area immediately surrounding the ear (postauricular or mastoid skin) to cover a defect. This tissue is the best match in terms of color and texture.
Tube flaps are a specific type of local flap where a strip of skin is rolled into a tube and wrapped from the neck or behind the ear to the defect site over several stages. This is a traditional but effective method for reconstructing the helical rim.
Helical rim advancement, often using the Antia-Buch technique, is used for traumatic defects of the ear rim. It involves making incisions along the helical sulcus to free up the remaining helix and earlobe.
The mobilized tissues are then advanced (slid) together to close the gap. This technique slightly reduces the overall size of the ear while preserving the natural landmarks and avoiding the need for skin grafts or distant flaps.
Send us all your questions or requests, and our expert team will assist you.
Rib cartilage uses your own living tissue, which heals naturally and lasts a lifetime, but requires a chest incision. Medpor is a synthetic implant that requires no chest incision and can be done at a younger age, but carries a lifelong risk of implant exposure or infection since it is not living tissue.
Yes, the chest donor site is typically more painful than the ear site for the first few days. However, surgeons use nerve blocks and advanced pain management (like exparel) to numb the area for several days, making the recovery much more manageable.
If a skin graft fails, the underlying framework (especially if synthetic) can be exposed. This is a complication that requires immediate attention and may involve antibiotics, wound care, or additional flap surgery to cover the exposed area.
In rib cartilage reconstruction, the first stage involves placing the framework beneath the scalp’s tight skin. There isn’t enough loose skin to cover the back of the ear yet. The ear is surgically “elevated” or lifted away from the head in a second surgery about 6 months later.
Currently, 3D printing is used to create the templates and models for surgery, but we cannot yet 3D print a living biological ear that can be sewn onto a patient. Research is ongoing, but standard care still involves cartilage carving or the use of porous polyethylene.
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