Page 186 - Hospital Authority Convention 2017
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Parallel Sessions                                                      Parallel Sessions
      HOSPITAL AUTHORITY CONVENTION 2017


             PS7.1     3D Printing in Medicine II                                        10:45  Theatre 1

            “3D Printing” Helps Cardiologists Save More Lives
            Chan JLK
            Department of Medicine, Queen Elizabeth Hospital, Hong Kong
            3D printing has become widely adopted in different industries, such as aviation, fashion design, and architecture, etc. Many
            real-life applications of this new technology are being reported frequently. For example, 3D printed parts were used in over
            400 GE90-94B engines for the new high-tech Boeing 777 aircraft; 3D printed footwears were created by different footwear
            companies; and the world’s first 3D-printed office building was completed in Dubai in 2016. And this is no exception in the
            medical industry. 3D printing has been successfully applied in the orthopaedic and dentistry practices both globally and
            locally for years. The application of 3D printing in other medical specialties seems to be lagging behind, but this is not the
            case. Advances in 3D printing in cardiology practice are beyond imagination  – application ranges from printing customised
            3D models for patients’ education, pre-procedural planning and even 3D bio-printing of tissues.

            In the presentation, the experiences of applying 3D printing in the cardiology practice, specifically for structural heart
            interventions will be shared. The presentation will also cover the process of building 3D printed models from patients’ specific
            data and the application of 3D printed models in our current practice, including rehearsals for better pre-procedural planning
            and treatment outcomes, as well as training and education. As the 3D printing technology goes more mature, we look forward
            to the application of patient-specific heat valve implants in the near future.



















             PS7.2     3D Printing in Medicine II                                        10:45  Theatre 1

            3D Model Planning and Patient-specific Orthopaedic Surgery
            Wong KC
            Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Hong Kong

            In traditional orthopaedic procedures, surgeons have to mentally integrate pre-operative 2D images and formulate a 3D
      Wednesday, 17 May  and surgical intervention on a patient-specific basis. With the mission of improving surgical accuracy and outcomes,
            surgical plan. With advances in both medical imaging and computing programme, 2D axial images can be processed into
            other reformatted views (sagittal and coronal) and 3D virtual models that are representing patients’ anatomy can be created.
            By analysing the digital information under enhanced visualisation, surgeons can then make a more detailed planning
            our department introduced computer navigation-assisted orthopaedic surgery in Hong Kong in 2002, and our team has
            pioneered the technique for orthopaedic tumours since 2006.

            In the last decade, 3D printing has undergone tremendous development and now has valuable applications in various fields
            of medicine. Although reports on orthopaedic applications are limited, orthopaedic surgeons are increasingly utilising the
            technology’s flexibility in objects manufacturing. This additive manufacturing allows fabricating custom objects with complex
            geometries never possible previously with traditional subtractive manufacturing methods. These provide the potential for
            significant patient benefits.

            Our department has started developing the technology specifically for surgical applications since 2011. The 3D printing
            techniques can generate models that give a better visual and tactile understanding of the complex anatomy and pathology
            of individual patients. It aids in education and surgical training. Most importantly, it can produce patient-specific surgical
            instruments and even sophisticated custom implants that are tailor-made to the surgical requirements.
            As the clinical workflow of the 3D printing technology continues to evolve, orthopaedic surgeons should embrace the latest
            knowledge of the technology and incorporate it into their clinical practice for patient-specific orthopaedic applications. This
            presentation is to share our experience and the practical difficulties we encountered in this rapidly developing field; discuss
            the potential advantages and limitations, and suggest the directions for future development.







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