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KMID : 0361620230580060491
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Journal of the Korean Orthopaedic Association
2023 Volume.58 No. 6 p.491 ~ p.504
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Various Clinical Experiences of Three-Demensional Printing Bone Reconstruction
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Park Jong-Woong
Kang Hyun-Guy
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Abstract
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Three-dimensional (3D) printing technology is increasingly being used in the medical field. It is most actively used in the production of customized guides and implants, especially in orthopedics. Trauma, including traffic accidents, osteomyelitis, bone tumors, and congenital malformations can cause huge intractable bone defects that require customized bone reconstruction. In patients with malignant bone tumors, chemotherapy and radiation therapy can be continued even after bone reconstruction. As local recurrence of tumors is possible, more careful surgical planning is needed. In 3D-printed implants, “patient customization” does not mean just anatomical reconstruction by printing out the design to address the bone defect. Based on the surrounding bone and soft tissue conditions, some parts should be further reinforced or removed, and the mechanical axis should be adjusted as necessary to ensure stable and functional reconstruction. Efforts are also needed to reduce the weight and amount of metal while minimizing complications of skin and soft tissue that could be caused by metal irritation. In the event of metal damage, fractures of adjacent bones, arthritis, and infection, a 3D printing design is required to be made taking into account the possibility of secondary surgery in the future. In this paper, we would like to describe important issues while sharing the experience of using 3D-printed implants in various parts of the body.
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KEYWORD
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3D printing, bone cancer, limb salvage surgery, implant
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