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[Masterclass 401] TMJ Reconstruction: Surgical Technique, Infection Control & Anatomical Hazards (Dr. Louis G. Mercuri)

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Faculty: Louis G. Mercuri, DDS, MS, FRCSDS (Eng) (Hon)

In this comprehensive masterclass, world-renowned TMJ reconstructive surgeon Dr. Louis G. Mercuri delivers a definitive, step-by-step walkthrough of total alloplastic TMJ reconstruction. Designed for craniomaxillofacial, oral-maxillofacial, and reconstructive surgeons, this course details critical preoperative candidate selection, biopsychosocial overlay management, and realistic pain expectation pathways based on prior surgical history.

Dr. Mercuri breaks down key skull base anatomical safety boundaries—including medial fossa dissection thresholds to protect the middle meningeal artery at the Foramen Spinosum and handling external auditory canal (EAC) disruptions using temporalis muscle flaps. The lesson covers intraoperative protocols to minimize periprosthetic joint infection (PJI) from deep-seated Cutibacterium acnes, material science care for UHMWPE and CoCrMo components, low-speed temperature-controlled drilling, bi-cortical screw mechanics, and abdominal fat graft packing to prevent heterotopic ossification.

Key Learning Objectives

  • Preoperative & Biopsychosocial Assessment: Master candidate selection criteria (osteoarthritis, ankylosis, avascular necrosis) and set objective pain-reduction expectations based on surgical history.

  • Anatomic Hazards & Safety Boundaries: Identify the medial fossa “inferior dip” boundary to protect the middle meningeal artery at Foramen Spinosum and execute staged temporalis flap closures for EAC breaches.

  • Infection Prevention & Biofilm Protocols: Implement multi-step PJI prophylaxis, including pre-op clipping, povidone-iodine hardware soaking, intrawound vancomycin, and 14-day anaerobic culture holds for C. acnes.

  • Prosthetic Mechanics & Fixation: Avoid micro-scratch abrasive wear on UHMWPE/CoCrMo surfaces, maintain perpendicular drilling to prevent screw head shearing, and ensure superior ramus bicortical stability.

  • Complication Prevention: Execute dense autogenous abdominal fat grafting to eliminate dead space and prevent heterotopic ossification (HO).

Published: 10/04/2026

Lesson Discussion:

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