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conferenceseries
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Volume 9
Journal of Biotechnology & Biomaterials
ISSN: 2155-952X
Biomaterials 2019
February 25-26, 2019
February 25-26, 2019 | London, UK
4
th
Annual Conference and Expo on
Biomaterials
Used of 3D printing technology in orthopedic oncology: Custom surgical guide and patient-matched
prosthesis
Sutipat Pairojboriboon
1
, Peter C Liacouras
2,3
, Suriya Luenam
1
and
Thipachart Punyaratabandhu
1
1
Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
2
Walter Reed National Military Medical Center, Bethesda, USA
3
Uniformed Services University of the Health Sciences, USA
Statement of the Problem:
Presenting the clinical outcome of patient-matched prosthesis and custom surgical guide via 3D
printing technology.
Methodology & Theoretical Orientation:
Total 11 cases of benign and malignant tumors applying 3D printing assisted
surgery which are 6 anatomical models, 11 custom surgical guides, and 4 patient-matched prostheses. Image acquisition was
derived from CT scan, 0.5-3 mm slices cut. The contralateral CT scan was used as a prototype for creating the patient-matched
prosthesis while the ipsilateral CT scan was used in anatomical model and surgical cutting guide. Anatomical models, used
as the preoperative planning tools, were printed by a fused deposition modeling (FDM) printer with acrylonitrile butadiene
styrene (ABS) material and a Binder Jetting machine, 3D Systems ZPrinter 650 using VisiJet PXL materials. 11 custom surgical
guides were printed by Envision TEC’s E-Guide Tint and E-Model. 4 of patient-matched prostheses, which are 2 fingers
prostheses, 1 of total constrained proximal interphalangeal (PIP) joint prosthesis, and 1 of navicular 3D custom scaffold,
were printed by selective laser-melted (SLM) printer with Ti6Al4V. The pore geometry selective laser-melted Ti6Al4V bone
scaffolds was 200 µm, strut size and 500 µm, pore size. Time to produce was 3-20 days. Preoperative planning via anatomical
model showed better outcomes in term of decrease operative time and blood loss. Custom surgical guide demonstrated better
outcomes comparing to navigation surgery in term of achieving same accuracy but less resection time. According to bone
tumors can be found in the unusual locations which there is no off the shelf prosthesis, patient-matched prosthesis has gained
popularity and played a major role in this area.
Conclusion & Significance:
Applying fabrication of 3D printing technology, via custom surgical guide and patient-match
prosthesis in bone tumors surgery, has proved the advantages in limb sparing surgery.
Figure 1: Demonstrating the patient-matched prostheses of 5
th
proximal phalange. We have developed 2 designs which are no
constrained and total constrained PIP joint.
Sutipat Pairojboriboon et al., J Biotechnol Biomater 2019, Volume 9
DOI: 10.4172/2155-952X-C1-112