Surgical Procedure for Right Maxillectomy

Preoperative Considerations

Comprehensive radiographic evaluation with three-dimensional imaging is essential to identify specific anatomy, presence of sinus septa, and anatomical variations, found in approximately 30% of patients, according to Praxis Medical Insights 1
Consultation with an otorhinolaryngologist is recommended if there is a history of sinusitis or related symptoms, as suggested by Praxis Medical Insights 1
Ensure adequate antibiotic prophylaxis has been administered, as recommended by Praxis Medical Insights 1
Consider "Ohngren's line" for tumor classification, with tumors "below" this line involving maxillary infrastructure and tumors "above" involving suprastructure, as described by Praxis Medical Insights 2

Disinfect the perioral region thoroughly, as recommended by Praxis Medical Insights 1
Administer local anesthesia with vasoconstrictor in the surgical area, as suggested by Praxis Medical Insights 1
Make a supracrestal incision with vertical release to access the area, as described by Praxis Medical Insights 1
Elevate a complete mucoperiosteal flap to visualize the lateral wall of the maxillary sinus, as recommended by Praxis Medical Insights 1
For more extensive resections, consider a Weber-Ferguson incision with possible extensions based on tumor extent, as suggested by Praxis Medical Insights 2
Create an access window using a diamond round bur with a high-speed handpiece, piezoelectric equipment, and/or manual bone rasp, as described by Praxis Medical Insights 1
Position the window near the zygomatic process to optimize access, as recommended by Praxis Medical Insights 1
For total maxillectomy, make osteotomies at the zygomaticomaxillary buttress, as described by Praxis Medical Insights 1
Make osteotomies at the hard palate (midline or paramedian) for total maxillectomy, as suggested by Praxis Medical Insights 2

Carefully detach the sinus membrane from the bony walls using sinus membrane elevators and/or blunt piezoelectric tips, as recommended by Praxis Medical Insights 1
Perform en bloc resection of the tumor whenever feasible, as suggested by Praxis Medical Insights 2
Ensure adequate resection with clear margins of at least 1.5-2 cm of visible and palpable normal mucosa, as described by Praxis Medical Insights 2
Consider frozen section margin assessment to facilitate complete tumor removal, as recommended by Praxis Medical Insights 2
Select appropriate reconstruction method based on defect classification, considering myocutaneous flaps, osteomyocutaneous flaps, or obturation with prosthetic appliance, as suggested by Praxis Medical Insights 3

Prescribe broad-spectrum antibiotics, such as amoxicillin 500mg TID for 7 days or clindamycin 300mg TID for 10 days if penicillin-allergic, as recommended by Periodontology 2000 4
Prescribe appropriate pain management, such as NSAIDs like ibuprofen 600mg TID or acetaminophen 500mg TID, as suggested by Periodontology 2000 4
Consider corticosteroids in decreasing doses to reduce edema and trismus, as recommended by Periodontology 2000 4

Schneiderian membrane perforation, the most common intraoperative complication, can be sealed with absorbable barrier membrane or fibrin construct, as described by Praxis Medical Insights 1 and 2
Abnormal postoperative bleeding, typically associated with damage to posterior superior alveolar artery, occurs in 14.5% of cases, as suggested by Praxis Medical Insights 2
Postoperative infections and subacute sinusitis require surgical drainage, debridement, removal of graft material, broad-spectrum antibiotics, and close monitoring, as recommended by Praxis Medical Insights 2
Subacute sinusitis, manifesting 3-7 days postoperatively, is associated with severe suborbital pain and may lead to complete graft failure or secondary infections, as described by Periodontology 2000 4