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Moncal KK, Gudapati H, Godzik KP, Heo DN, Kang Y, Rizk E, Ravnic DJ, Wee H, Pepley DF, Ozbolat V, Lewis GS, Moore JZ, Driskell RR, Samson TD, Ozbolat IT. Intra-Operative Bioprinting of Hard, Soft, and Hard/Soft Composite Tissues for Craniomaxillofacial Reconstruction. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2010858. [PMID: 34421475 PMCID: PMC8376234 DOI: 10.1002/adfm.202010858] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Indexed: 05/20/2023]
Abstract
Reconstruction of complex craniomaxillofacial (CMF) defects is challenging due to the highly organized layering of multiple tissue types. Such compartmentalization necessitates the precise and effective use of cells and other biologics to recapitulate the native tissue anatomy. In this study, intra-operative bioprinting (IOB) of different CMF tissues, including bone, skin, and composite (hard/soft) tissues, is demonstrated directly on rats in a surgical setting. A novel extrudable osteogenic hard tissue ink is introduced, which induced substantial bone regeneration, with ≈80% bone coverage area of calvarial defects in 6 weeks. Using droplet-based bioprinting, the soft tissue ink accelerated the reconstruction of full-thickness skin defects and facilitated up to 60% wound closure in 6 days. Most importantly, the use of a hybrid IOB approach is unveiled to reconstitute hard/soft composite tissues in a stratified arrangement with controlled spatial bioink deposition conforming the shape of a new composite defect model, which resulted in ≈80% skin wound closure in 10 days and 50% bone coverage area at Week 6. The presented approach will be absolutely unique in the clinical realm of CMF defects and will have a significant impact on translating bioprinting technologies into the clinic in the future.
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Affiliation(s)
- Kazim K Moncal
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Hemanth Gudapati
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kevin P Godzik
- Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Dong N Heo
- Department of Dental Materials, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youngnam Kang
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Elias Rizk
- Department of Neurosurgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Dino J Ravnic
- Department of Surgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Hwabok Wee
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - David F Pepley
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veli Ozbolat
- Mechanical Engineering Department, Ceyhan Engineering Faculty, Cukurova University, Adana 01950, Turkey
| | - Gregory S Lewis
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jason Z Moore
- Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ryan R Driskell
- School of Molecular Biosciences, Washington State University, Pullman, WA 99164, USA
| | - Thomas D Samson
- Department of Neurosurgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Ibrahim T Ozbolat
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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