PDF: Local Flap Reconstructions in Oral Cancer Defects: Surgical Techniques, Indications, and Clinical Insights from 104 Cases



In oral and maxillofacial oncology, radical ablation of squamous cell carcinoma frequently results in challenging soft-tissue defects that carry profound aesthetic and functional morbidity.

While microvascular free tissue transfer remains the conventional reference standard for extensive or composite resections, its routine implementation poses significant logistical hurdles in resource-constrained or high-volume surgical centers, in addition to increasing operative times and systemic stress in frail patients.


In this scenario, adhering to the principle of "replacing like with like" through pedicled local flaps provides an effective, time-efficient, and versatile reconstructive alternative for selected small-to-moderate oral cavity defects.

Local and locoregional flaps provide superior tissue color, texture, and pliability match with minimal donor site morbidity and rapid harvest times.

This blog post explores an authoritative study published in the Rambam Maimonides Medical Journal, which details the clinical experience of 104 consecutive reconstructive procedures utilizing six distinct local flaps—including melolabial, islanded Facial Artery Myomucosal (FAMM), submental, supraclavicular artery island, infrahyoid, and platysma myocutaneous flaps—analyzing defect-specific indications, functional speech/swallowing recovery, and complication profiles to refine modern reconstructive decision-making.


Key Clinical Insights from the Study

✔ Subsite-Specific Flap Selection

The reconstructive choice was strictly tailored to anatomical defect sites:

★ Tongue & Hemiglossectomy

The melolabial flap was the most utilized technique (accounting for 60.6% of all reconstructions), providing pliable, reliable coverage that preserves lingual mobility.

★ Buccal Mucosa & Marginal Mandibulectomy

The supraclavicular artery island flap (15.4%) provided optimal surface area and reach for extensive lateral oral lining defects where primary closure would cause severe trismus.

★ Lower Lip & Commissure

The submental flap (10.6%) served as the primary reconstructive option, ensuring anatomical contour and oral competence.

★ Floor of the Mouth & Palate

The islanded FAMM flap (4.8%) and infrahyoid flap (4.8%) delivered vascularized mucosal and myofascial layers for deep localized deficits.

✔ Harvest Efficiency vs. Technical Complexity

Most local flaps demonstrated swift harvest times ranging between 45 and 55 minutes, significantly lowering overall operative risk compared to microvascular anastomoses. Conversely, islanded FAMM flaps required slightly longer dissection (55–70 minutes) owing to the delicate tracking of the facial artery and vein.

✔ Complication Spectrum & Flap Viability

Overall flap survival was high; partial necrosis occurred in only 7.7% of cases (most frequently observed with the supraclavicular flap) and total flap loss in 1.9%, all of which were successfully resolved conservatively without requiring emergent secondary flap transfers.

✔ Functional Restoration (PSS-HN)

Postoperative assessments demonstrated favorable functional outcomes, allowing timely tracheostomy decannulation, prompt resumption of oral feeding, and satisfactory Performance Status Scale for Head and Neck Cancer (PSS-HN) scores.

Conclusion

Do not underestimate the reconstructive power of local pedicled flaps in moderate oral cancer defects.

Selecting a tailored local flap—such as the melolabial flap for hemiglossectomy or the submental flap for lip-commissure defects—minimizes donor-site morbidity, cuts harvest times under one hour, and achieves speech and swallowing outcomes comparable to free flaps without the burden of microvascular failure.

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