Head & Neck Cancer Reconstruction

Surgery to remove head and neck cancer can leave significant defects — missing jawbone, absent floor of mouth, resected pharyngeal tissue, or large scalp wounds. Rebuilding these areas requires a surgeon who understands both the technical demands of microsurgery and the critical functional needs of swallowing, speech, and airway protection. Free flap reconstruction is the standard of care for most major head and neck defects, offering reliable, well-vascularized tissue tailored to each patient's anatomy.^1,2

Why Head & Neck Reconstruction Is Uniquely Challenging

The head and neck region concentrates more critical anatomy per square centimeter than almost anywhere else in the body. Nerves controlling the face, tongue, and larynx; blood vessels supplying the brain; the structures of speech, swallowing, and breathing — all lie in close proximity. When cancer surgery removes bone and soft tissue from this region, reconstruction must accomplish several goals simultaneously:

• Restore structural support — particularly for the mandible and midface, where bone loss disrupts bite function and facial contour
• Re-line mucosal surfaces — oral cavity, oropharynx, and hypopharynx require watertight, well-vascularized internal lining to prevent fistula and infection
• Preserve or restore function — swallowing, speech intelligibility, and airway safety depend on precise tissue placement
• Enable timely radiation therapy — well-healed reconstruction minimizes delays to adjuvant treatment, which can affect cancer outcomes²
• Minimize donor site morbidity — the area where tissue is harvested must heal predictably and leave the patient with acceptable long-term function

Achieving all these goals requires a microsurgical specialist with dedicated expertise in head and neck reconstruction — not a generalist who performs these procedures occasionally.

Common Cancer Resections and Their Reconstructive Needs

Mandible (Lower Jaw)

Cancers of the floor of mouth, gingiva, and retromolar trigone frequently require segmental mandibulectomy — removal of a segment of the lower jaw. Without reconstruction, patients suffer severe functional impairment: inability to chew, facial disfigurement, and difficulty managing saliva. The fibula free flap, which carries a segment of the fibula bone along with its skin paddle, is the workhorse for mandibular reconstruction.^3,4 Virtual surgical planning (VSP) allows three-dimensional pre-operative planning of the exact bone cuts needed, improving precision and reducing operative time. Patients who undergo fibula free flap mandibular reconstruction can often achieve near-normal occlusion and jaw function, and many are candidates for osseointegrated dental implants.

Maxilla and Midface

Upper jaw (maxillary) resections create complex three-dimensional defects that affect the orbit, palate, and cheek simultaneously. The scapula free flap — which can provide both bone and large areas of thin, pliable skin — is often preferred for complex midfacial defects. For palatal defects, reconstruction or prosthetic obturation must separate the oral and nasal cavities to restore intelligible speech and swallowing.

Oral Cavity and Floor of Mouth

The radial forearm free flap (RFFF) — harvested from the inner wrist and forearm — provides thin, pliable, sensate tissue ideally suited for lining the oral cavity.⁵ Its thin profile allows the tongue to move freely, which is critical for speech and swallowing. For larger defects or those requiring volume, the anterolateral thigh (ALT) flap offers a larger soft tissue paddle with minimal donor site morbidity.

Pharynx and Hypopharynx

Cancers of the throat (oropharynx, hypopharynx) may require circumferential or near-circumferential resection of the pharyngeal tube. Reconstruction must re-create a conduit for swallowing without stricture. The radial forearm free flap configured as a tube, the anterolateral thigh flap tubed, or in some cases a jejunal free flap (intestinal segment) are options depending on defect geometry and patient factors. Restoring swallowing function — and avoiding the need for a permanent feeding tube — is a central goal of pharyngeal reconstruction.

Scalp

Large scalp defects from wide excision of squamous cell carcinoma, melanoma, or angiosarcoma may not be closable with local tissue alone. When bone is exposed or the calvarium is involved, free flap coverage provides durable, well-vascularized tissue that can withstand radiation. The anterolateral thigh (ALT) flap and latissimus dorsi free flap are frequently used options for scalp reconstruction requiring large surface area coverage.

The Microsurgical Technique: Vessel Anastomosis

Free tissue transfer — moving a block of tissue from a donor site with its own blood supply intact — depends on microsurgical anastomosis: connecting the flap's arteries and veins to recipient vessels in the neck under high-powered magnification.¹ In head and neck reconstruction, the facial artery, superior thyroid artery, and branches of the external carotid artery serve as common recipient vessels. The internal jugular vein and its tributaries are used for venous outflow.

The microsurgical anastomosis is typically performed at 8x to 25x magnification using sutures finer than human hair. Patency of these connections — the flap "taking" — is critical. Free flap success rates exceed 95–99% in healthy patients.¹ Monitoring of the flap in the immediate postoperative period (typically 72 hours) allows rapid identification and salvage of any compromise.

Functional Considerations

Swallowing Rehabilitation

Dysphagia — difficulty swallowing — is common after head and neck cancer treatment, resulting from resection of tongue base, pharyngeal walls, or laryngeal structures, and compounded by radiation fibrosis.⁶ Reconstructive decisions directly influence swallowing outcomes: tongue mobility, pharyngeal geometry, and laryngeal protection all depend on how tissue is positioned. Post-operative swallowing therapy with a speech-language pathologist is an essential part of the recovery process.

Speech

Intelligible speech after oral cavity or oropharyngeal surgery depends on adequate tongue volume and mobility. When a portion of the tongue is resected (partial glossectomy), the reconstruction must provide enough bulk for the remaining tongue to contact the palate during articulation. Thin, pliable flaps (radial forearm) perform better than bulky ones for tongue mobility.

Airway Management

Many patients undergoing major head and neck resection require a temporary tracheostomy to protect the airway during the perioperative period. Decannulation — removal of the tracheostomy — is a goal for most patients and depends on successful reconstruction, adequate swallowing, and absence of aspiration.

Collaborative Approach with Head & Neck Oncologic Surgery

Head and neck reconstruction is performed as part of a two-team approach: the head and neck surgical oncologist performs the cancer resection, and Dr. Lakhiani's microsurgical team performs reconstruction in the same operative sitting. This coordination reduces total anesthesia time and optimizes outcomes. Pre-operative planning — including imaging review, virtual surgical planning for bony reconstruction, and tumor board discussion — ensures each patient's reconstructive plan is determined before entering the operating room.

After surgery, patients are followed by a multidisciplinary team including medical oncology, radiation oncology, speech-language pathology, and nutritional support to optimize both oncologic and functional outcomes.

Recovery and Timeline

Major head and neck free flap reconstruction typically requires 5–10 days of hospitalization. Most patients are monitored in an intensive or step-down care unit for the first 48–72 hours for flap monitoring. Oral feeding is typically reintroduced gradually under speech therapy guidance. Adjuvant radiation therapy, when indicated, generally begins 6 weeks after surgery to allow wound healing. Most patients notice continued improvement in swallowing and speech over 6–12 months as tissue matures and swallowing therapy progresses.