How Early Facial Nerve Repair Can Help Patients Smile Again
Imagine suddenly losing the ability to smile, blink, or express emotion on one side of your face. For many undergoing complex skull base surgery to remove tumors, this can be a devastating reality if the delicate facial nerve is damaged. Removing the tumor is always the top priority. But what happens next for the facial nerve can make a world of difference in a patient’s recovery and quality of life.
Liliana Ein, M.D., a facial nerve specialist at the University of Miami Health System and the University of Miami Miller School of Medicine, is on a mission to change how surgeons approach this challenge. She advocates for immediate facial nerve repair at the very moment the tumor is removed, arguing that delaying this crucial step can lead to irreversible consequences.
“A lot of times people will just cut the nerve and then deal with it later, or they just leave the patients with flaccid paralysis,” Dr. Ein says. This “flaccid paralysis” means a complete loss of muscle tone, leading to a drooping, unresponsive face.
The Critical “Window of Opportunity”
Think of a broken electrical wire. The sooner it’s reconnected, the better the chance the appliance will work perfectly again. The same principle applies to facial nerves.
“If you lose that window, it’s a lot harder to reanimate patients,” Dr. Ein says. This “window of opportunity” refers to the crucial time frame after the nerve is damaged when it’s most receptive to repair. Missing it can make regaining function much more difficult, requiring more complex, multi-stage procedures later.
Dr. Ein often collaborates with Larissa Sweeny, M.D., a microvascular reconstruction specialist at UHealth and the Miller School. Together, they tackle some of the most challenging cases, particularly when tumors affect the parotid gland (near the ear) or extend deep into the skull base, requiring extensive tumor removal and reconstruction.
Facial reconstruction after tumor removal is never a one-size-fits-all approach.
As Dr. Sweeny points out, “Each defect is dependent on the tumor. The surgeon needs to be able to visualize the three-dimensional space being reconstructed and adapt accordingly.” This means carefully assessing how much tissue and nerve have been lost and planning a personalized repair strategy.
In some cases, the nerve can be directly repaired. But for larger tumors, a significant gap in the nerve might occur, like a broken bridge. Dr. Ein and her team employ a combination of advanced techniques:
- Protecting Your Eye.
They often prioritize repairing nerves to the eyelid to ensure the patient can blink, which is vital for eye health. This might involve using a “cable graft,” borrowing a small nerve segment from another part of the body to bridge the gap. - Restoring Your Smile.
To bring back a natural smile, they might use a “masseteric nerve transfer,” essentially rerouting a nerve from a chewing muscle to power the smile muscles. - Providing Support.
Sometimes, if there’s significant drooping, “static lifts” using tissue from the thigh can provide immediate support.
A Journey to a Spontaneous Smile
One particularly challenging case involved a woman with an aggressive tumor that had damaged not only her facial nerve but also the smile muscles themselves.
“I couldn’t reinnervate her smile muscles, because there was no nerve or muscle left,” Dr. Ein says.
This patient’s journey required multiple stages. First, during the initial tumor surgery, Dr. Ein focused on restoring blink function and some lower lip movement. The work to restore her smile came later, after radiation treatment.
In a remarkable two-stage process:
- Stage One: Dr. Ein borrowed a nerve from the patient’s ankle (sural nerve) and carefully threaded it across her face, connecting it to an intact smile nerve on one side and “banking” the other end in the paralyzed cheek, preparing it for the next stage.
- Stage Two: Six months later, Dr. Sweeny and Dr. Ein performed a “gracilis free functional muscle transfer.” This involved harvesting the gracilis muscle from the patient’s inner thigh. Dr. Sweeny says, “The gracilis is the ideal donor site for this reconstruction. It allows for the closest match to the native tissue lost.” This muscle, complete with its own blood vessels, was then meticulously connected to the nerve graft and the patient’s remaining vessels in the neck – a delicate procedure made even harder by previous radiation treatment which can make tissues scarred and vessels fragile.
This complex procedure has a high success rate, and for this patient, the results were transformative. Eleven months after the gracilis surgery, she was able to smile spontaneously again – a testament to the power of meticulous, staged surgical care.
The Importance of Prioritizing Facial Function
Not every patient requires such extensive surgery. This case highlights why prioritizing facial nerve repair from the outset is so vital. As Dr. Ein says, “If reinnervation can’t be done fully or is neglected at the time of surgery, then we have to resort to other methods, including static fascia lata grafts and free muscle transfers, as we did in this young lady’s case.”
For anyone facing skull base surgery, understand the options for facial nerve repair. Discuss them with your surgical team early. It can be the first step toward preserving your natural expressions and quality of life.
Original story posted on Inventum. Edited by Audra Hodges. Reviewed by Liliana Ein, M.D.
Tags: Dr. Larissa Sweeny, Dr. Liliana Ein, ENT in Miami, facial nerve reconstruction timing, nerve regeneration after surgery, restore smile after tumor removal
