Maxillomandibular Advancement for OSA

Maxillomandibular advancement is the most effective surgical treatment for obstructive sleep apnoea. It moves both jaws forward to open the airway at its source.

What is OSA and Why Your Jaw Matters

Obstructive sleep apnoea is a condition in which your upper airway collapses repeatedly during sleep. Each collapse pauses your breathing, drops your oxygen, and jerks you briefly awake.

Over time, OSA raises your risk of high blood pressure, heart attack, stroke, type 2 diabetes, daytime fatigue, and motor-vehicle accidents. It is more than snoring. It is a serious medical disorder.

The root cause is almost always anatomical. When the jaws sit too far back, the tongue and soft tissues of the throat have nowhere to go during sleep. They fall backward and block the airway.

This is why the position of your maxilla and mandible is central to airway size. Bringing both jaws forward physically opens the space behind the tongue. That simple anatomical idea is the foundation of jaw surgery for sleep apnoea.

What is Maxillomandibular Advancement

Maxillomandibular advancement, often shortened to MMA, is a combined orthognathic surgery that moves both the upper jaw (maxilla) and the lower jaw (mandible) forward by about 8 to 12 millimetres.

The upper jaw is repositioned through a Le Fort I osteotomy. The lower jaw is repositioned through a bilateral sagittal split osteotomy (BSSO). Both jaws are then fixed in their new position with titanium plates and screws.

Because the tongue and soft palate are anchored to the jaws, advancing the bones pulls the entire soft-tissue envelope of the airway forward. The retropalatal and retrolingual spaces enlarge at the same time. The result is a stable, three-dimensional enlargement of the upper airway.

MMA is considered the most effective surgical treatment for OSA, with success rates higher than any other single procedure. It is the operation we turn to when CPAP and lesser procedures have failed.

Who is a Candidate for MMA

You are a strong candidate for MMA when conservative treatments have not worked. The most common reason patients reach our clinic is failure of CPAP, the gold-standard non-surgical therapy.

You may also be a candidate if your apnoea–hypopnoea index (AHI) is moderate to severe. Most surgeons recommend MMA once AHI crosses 15 events per hour, particularly when accompanied by daytime symptoms.

Other indicators include an elevated BMI (typically under 35 for surgical safety), a retrusive maxilla or mandible, and a crowded posterior airway seen on imaging. We confirm the site and pattern of collapse with drug-induced sleep endoscopy before recommending surgery.

If you are unsure whether your jaw position contributes to your symptoms, our guide on jaw surgery for sleep apnoea explains how anatomy and apnoea are linked.

Pre-Operative Workup

No patient goes into MMA without a structured workup. The cornerstone is a level-1 polysomnography, which gives us your AHI, oxygen saturation nadir, and sleep architecture.

We then perform drug-induced sleep endoscopy (DISE). Under light sedation, a flexible endoscope records the exact level and direction of airway collapse. DISE tells us whether MMA is the right procedure or whether a site-specific alternative would serve you better.

Imaging follows. A cone-beam CT (CBCT) maps your facial skeleton, while lateral cephalometric analysis quantifies your jaw relationships, airway length, and hyoid position. Together they feed the virtual surgical plan.

Finally, we build a 3D virtual surgical plan (VSP) on dedicated software. The plan models bone cuts, vector of movement, nerve position, and final occlusion. Custom 3D-printed splints and guides are fabricated from the plan and used in the operating room.

The Procedure

MMA is performed under general anaesthesia. You will be asleep for the entire operation. A nasal tube is used so the surgeon has full access to both jaws.

All incisions are placed inside the mouth. There are no visible scars on the face. The Le Fort I osteotomy frees the maxilla at the level of the piriform aperture, and the BSSO splits the mandibular ramus bilaterally.

Both jaws are mobilised and brought forward according to the pre-operative VSP. Prefabricated splints guide the new bite. Titanium miniplates and screws fix the bones in their new position. The incisions are closed with resorbable sutures.

Operating time is usually 2 to 4 hours, depending on the magnitude of movement and whether adjunctive procedures (such as genioglossus advancement or septoplasty) are added. Most patients stay in hospital for 1 to 2 nights.

If you want a deeper look at the technical background, our explainer on the purpose, procedure and recovery of orthognathic surgery walks through each step in detail.

Recovery and Healing

The first 24 to 48 hours focus on swelling control, pain management, and monitoring. You will be on a liquid diet and your jaw will feel stiff. Cold compresses and a head-elevated position help reduce swelling quickly.

Over the first two weeks, swelling peaks around day three and then begins to recede. You will continue with liquids and progress to soft foods by the end of week two. Most patients return to desk work in about 10 to 14 days.

Numbness in the lower lip and chin is common in the early weeks. It usually improves over three to six months as the inferior alveolar nerve recovers. We monitor nerve function at every follow-up.

Full bony union takes about six to eight weeks. By three months, most patients are eating normally and have resumed exercise. Final facial settling continues for up to a year. Detailed milestones are mapped in our recovery timeline guide.

Outcomes and Success Rates

MMA is the most successful surgical operation for OSA. In the published literature, success rates range from 85 to 95 percent when defined as an AHI below 10 and at least a 50 percent reduction from baseline.

Cure rates (AHI below 5) are reported in roughly 40 to 60 percent of patients. AHI reductions of 60 to 90 percent are typical. These results are durable, with studies showing sustained improvement 10 years and beyond.

Unlike CPAP, MMA works every night without a machine. Unlike oral appliances, it does not depend on nightly compliance. The airway enlargement is structural, not mechanical, which is why the effect persists over decades.

Quality of life improves dramatically. Patients report better sleep, fewer morning headaches, sharper daytime concentration, lower blood pressure, and renewed energy within the first six months.

MMA vs Other OSA Treatments

CPAP remains first-line therapy and is highly effective when used consistently. The problem is real-world adherence. Many patients abandon CPAP within the first year due to mask discomfort, air pressure, or travel inconvenience.

Mandibular advancement splints pull the lower jaw forward by a few millimetres. They help mild to moderate OSA but lose effectiveness at higher AHIs and may cause jaw joint discomfort with long-term use.

Uvulopalatopharyngoplasty (UPPP) removes soft tissue from the throat. It addresses only one level of collapse and has lower success rates than MMA, particularly in patients with multi-level obstruction.

Hypoglossal nerve stimulation uses an implanted device to stiffen the tongue during sleep. It is useful for a narrow group of patients without complete concentric collapse and requires ongoing device follow-up.

Tracheostomy bypasses the upper airway entirely. It is curative but reserved for life-threatening OSA that has failed every other option. MMA is now the preferred definitive treatment instead.

When conservative options have failed, MMA offers the highest chance of long-term, medication-free, device-free relief.

Risks and Complications

MMA is a major procedure performed under general anaesthesia. As with any operation, there are risks. The most common issues are temporary and manageable.

Temporary numbness of the lower lip, chin, or upper teeth occurs in a majority of patients. Permanent nerve injury is uncommon and affects a small minority. Most sensory changes resolve within six months.

Other risks include bleeding, infection, plate exposure, malocclusion requiring refinement surgery, temporomandibular joint symptoms, and unfavourable splits of the mandibular ramus. Relapse of jaw position is rare when fixation is adequate.

A detailed breakdown of what to watch for is available in our article on the side effects of maxillofacial surgery.

How MMA Changes Facial Appearance

Because both jaws are moved forward, your facial profile changes in predictable ways. The midface becomes more projected, the chin appears stronger, and the labiomental fold softens.

Most patients describe the change as a more balanced, defined profile. Nasolabial angles and cheek projection can also improve subtly. The functional gain in airway size is paired with a clear aesthetic gain in facial harmony.

Changes are discussed in detail during VSP. We show you a predicted soft-tissue outcome before surgery so you know what to expect. To understand how jaw repositioning affects appearance more broadly, read about jaw surgery for facial appearance.

If you want a complete patient-side view, our complete orthognathic guide for patients covers planning, surgery, and the months that follow.

Cost of MMA in India

MMA in India is significantly more affordable than in the United States, Europe, or the Gulf. Costs vary by city, hospital, and case complexity, but most patients can expect the package to include pre-operative imaging, hospital stay, anaesthesia, surgery, and routine follow-up.

Insurance coverage in India has historically been limited for OSA surgery. Coverage is improving as insurers recognise OSA as a serious medical condition with long-term cardiovascular consequences. We provide detailed cost estimates and documentation support during your consultation.

When to See a Maxillofacial Surgeon

See a maxillofacial surgeon if your AHI remains moderate to severe despite CPAP, if you cannot tolerate CPAP or an oral appliance, or if your sleep physician has identified jaw retrusion as a contributing factor.

Also seek evaluation if you have daytime sleepiness, loud snoring witnessed by a partner, morning headaches, or unexplained hypertension that worsens at night. These are red flags for undiagnosed or undertreated OSA.

Choosing the right surgeon matters. Look for a maxillofacial surgeon with fellowship training in orthognathic surgery and a track record in airway surgery. Practical selection tips are in our guide on how to choose the best maxillofacial surgeon in Hyderabad.

If you are unsure which specialist handles airway surgery, our overview on which doctor to consult for sleep apnoea surgery clarifies the referral pathway. Always rule out acute trauma first by reviewing broken jaw symptoms if a recent injury is in the picture.

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