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Webinar

Individual patient-specific solutions for the mandible

Speaker | Prof. Majeed Rana, MD, DMD

What you will learn in this webinar: 

  • Overview on mandibular reconstruction options feat. vascularized flaps
  • Virtual planning, digital workflows
  • Computer-assisted surgery feat. customized resection and flap harvesting guides as well as patient-specific functionalized implants

Date | Thursday, June 10 2020, from 3 to 4 p.m. CEST.

Language | English

This webinar is free of charge.

Maximum 500 participants.

 

Prof. Majeed Rana, MD, DMD

Vice Chairman at the Department of Oral and Maxillofacial and Plastic Facial Surgery

University Hospital Düsseldorf

Düsseldorf, Germany

More about Prof. Majeed Rana, MD, DMD

Prof. Majeed Rana, a native of Bad Homburg, Germany, is vice director of the Heinrich Heine University Düsseldorf Department of Oral and Maxillofacial and Plastic Facial Surgery. Throughout his 14-year career in craniomaxillofacial (CMF) surgery, he has specialized in computer-assisted surgery (CAS), bringing a new level of predictability, quality control and excellence to the complex cases he treats.

Rana earned his medical degree in 2006 from Johann Wolfgang Goethe University in Frankfurt, Germany, his specialty in emergency medicine in 2007, and in 2009 his doctor of dental medicine degree from RWTH Aachen University in Aachen, North Rhine-Westphalia, Germany, and his implantology specialty. He has an AO CMF member since 2008 and has chaired several national and international courses. 

Rana currently is involved in clinical study funded by the German government for €2.5 million and aimed at facilitating a child-friendly craniosynostoses treatment using molybdenum as the base material for open cranial bone remodeling. This completely new material concept, due to the high mechanical strength of molybdenum and its resorbability, significantly reduces risk to the patient and represents a treatment that can be seamlessly integrated into existing treatment processes and clinic workflows.

Abstract

Mandibular resection may be an essential part of treatment for benign or malignant conditions such as trauma, osteomyelitis or osteoradionecrosis, keratocystic tumors or oral cancer. Once mandibular continuity is lost, the large defects can be challenging to reconstruct, and this is due to both functional and aesthetic reasons (Essig et al. 2011, Modabber et al. 2012). Several options are available for reconstruction, including vascularized bone grafts combined with load-bearing reconstruction plates (Rana et al. 2012).
Well-established osseous donor sites providing sufficient bone length include fibula, iliac crest and scapula flaps (Sullivan et al. 1989, Urken et al. 1998). The vascularized free fibula flap is often the first choice for mandibular reconstruction (Wang et al. 2011). The shape and quality of the cortico-cancellous bone is suitable for contouring, by osteotomies, and allows placement of dental implants, for complete reconstruction and rehabilitation. The reconstruction of the mandible and the required contouring of the osseous fibula flap, are dependent on mini- or reconstruction plates that need to be adjusted intraoperatively based on the outer contour of the original mandible.
With the development of patient-specific functionalized implants (PSFI), another possibility to achieve a true-to-origin contour of resected bone has been established (Roser et al. 2010). The accuracy of reconstruction plates created by computer-aided design/computer-aided manufacturing (CAD/CAM) or selective laser melting (SLM) is superior to the manually bent reconstruction plates. CAD/CAM or SLE plates are also superior in terms of strength and intraoperative positioning, when compared to manually bent plates, which are important parameters for a tailored reconstruction (Wilde et al. 2012, Wilde et al. 2015). In the last few years computer-assisted surgery had a positive impact on the outcome of reconstructions in oral and maxillofacial surgery and the scope of the technique has been increasing (Eckardt et al. 2005). Although this approach can be readily available, most reconstructive units do not use it, due to limitations in terms of costs, time and lack of experience. 

Another advantage of the planning session, is that certain complex aspects of surgery could be anticipated and a personalized treatment plan could be drafted due to the recent developments in virtual planning and PSFI. However, PSFIs are still not integrated into clinical routine because of several disadvantages: (1) The current workflow requires a web-based platform for web meeting with engineers, which is often time-consuming and expensive while the functional considerations of the plate are limited, (2) surgical guides for both resecting and flap harvesting are necessary in order to accurately execute the treatment plan. The introduction of the new selective laser melting procedure into CMF reconstruction might be a reasonable solution (Rana, Chui et al. 2015).

Based on our results, the use of PSFIs in the reconstruction of mandibular segmental defects may contribute to a better clinical outcome. Further work will be required in order to evaluate their mechanical properties in detail.

Interested?

Register now. Participation is free of charge. We are looking forward to you.

To the registration

This webinar is part of

IPS® WEBucation Series

Upcoming webinars of this series

2020-04-09 | Evolution of custom-made solutions in CMF surgery | Speaker: Nils-Claudius Gellrich

The webinar will take place on Thursday, April 09 2020, from 3 to 4 p.m. CEST.

What you will learn in this webinar: 

  • The evolution of CMF implants from standard plates and screws to the newest types and generations of custom-made implant is illustrated.
  • Different indications are demonstrated to clarify the advantage of the evolutionary process of functionalized implants in CMF surgery.
  • A focus lies on implants for 1) tumor related reconstructive surgery, 2) primary and secondary orbital reconstructive surgery and 3) dental rehabilitation with implant borne restorations.

Language | English

Participation is free of charge.

2020-05-14 | Individual patient-specific solutions for midface reconstruction, Speaker: Max Heiland

The webinar will take place on Thursday, May 14 2020, from 3 to 4 p.m. CEST.

What you will learn in this webinar: 

  • We have sophisticated virtual planning tools and many possibilities to transfer individual plans to the surgical theatre using 3D-printed guides and patient-specific implants.
  • However, besides microvascular tissue transfer established techniques like local flaps and even anaplastology are still valuable parts of our therapeutic armamentarium. 
  • How to use the variety of reconstructive possibilities to achieve the best possible result in individual patients.
     

Language | English

Participation is free of charge.

2020-05-20 | Individual patient-specific solution for primary orbital reconstruction | Speaker: Alexander Schramm

The webinar will take place on Wednesday, May 20 2020, from 3 to 4 p.m. CEST.

What you will learn in this webinar: 

  • Software developments for automatic bone segmentation of standard CT data sets dramatically reduce the time period for preoperative planning in virtual facial reconstruction.
  • Combining this tool with mirroring of segmented areas of the facial skeleton achieves instant virtual reconstruction and allows direct production of customized implants for complex orbital and midface defects.
  • The resulting virtual model together with intraoperative navigation and intraoperative CT imaging guides the reconstructive procedure and positioning of these implants to the desired result.

Language | English

Participation is free of charge.

Registration will soon be available.

2020-06-25 | Individual patient-specific solution for secondary orbital reconstruction | Speaker: Nils-Claudius Gellrich

The webinar will take place on Thursday, June 25 2020, from 3 to 4 p.m. CEST.

What you will learn in this webinar: 

  • Today patient-specific implants play a key role in the treatment of secondary orbital reconstruction.
  • Different views on secondary orbital reconstruction will be given including the complex interaction with the periorbital tissues and outer frame.
  • Special attention will be given to analyze and understand how to approach a case of secondary orbital correction and what are the key elements of treatment to achieve a good outcome.

Language | English

Participation is free of charge.

Note | Some products shown during these webcasts may not be available in all markets. Please contact your local KLS Martin representative for product availability.