Mandibular Reconstruction

Presenter: Daniel Talmor  Course: Medical Engineering Seminar  Date:1/5/2013 Name of Lecture: Dr. Zehava blachman

Goals of Mandibular Reconstruction  Causes of mandibular defect  Anatomy of the mandibular  mandibular   Biomechanical Aspects  Reconstructive Techniques  Recent advances  Summary and Discussion 

 Accurate Classification of defect and understanding of functional deficits  Restore Form and Function 

•

•

•

•

•

Restore Bony Contour of native mandible Restoration of Mastication Deglutition  Articulation Maintenance of adequate airway

 Ablative surgery of oral cancer   Surgical treatment of cysts  Trauma\assault  Birth Defects  For aesthetic reasons 



Ramus



Mandibular angle



Body



symphysis



alveolar process



Condoyle



Notch

 Alloplastic Implants  Plate grafts: 



Vascularized Free Tissue Transfer 



fibular free flap:

 Advantages



fibular free flap:

Disadvantages

Iliac Crest Osseocutaneous Free Flap :  Advantages





Iliac Crest Osseocutaneous Free Flap : Disadvantages



Mandibular Reconstruction Plate using Finite Element Analysis



Mandibular Reconstruction Plate using Finite Element Analysis

Stress fields (von Mises norm) after impact to the symphysis



First 3D printed mandibular:

http://www.youtube.com/watch?v=Ly5h252 TRfM http://www.youtube.com/watch?v= 93RVzpr 0s0