数字骨库辅助异体骨选配在骨肿瘤中的应用及长期疗效观察

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Abstract Objective To describe the establishment of a visual bone bank system and workflow of allograft selection，and observe long-term follow-up results of patients after allograft implantation.Methods Allografts were CT scanned and stored in Digital Imaging and Communications in Medicine (DICOM) files.Then，image segmentation was conducted and 3D model reconstructed to establish a virtual bone bank system.Based on the volume registration method，allografts were registrated in the bone bank system.The selection and matching of the allograft were shown by treatments to a patient with Ewing's sarcoma in pelvis and a patient with osteosarcoma in distal tibia.With a careful matching process，the surgery was conducted with the help of Computer-assisted Orthopaedic Surgery (CAOS) navigation system.Results By combining the virtual bone bank and CAOS，matching accuracy was satifactory.Within 5 years follow-up，the two patients were alive without evidence of disease and with a good limb fuction.Conclusion The virtual bone bank system is helpful for allograft selection，matching，tumour excision and bone reconstruction，thus improving the safety and effectiveness of limb-salvage surgery for orthopaedic oncology.

Key words： allograft virtual bone bank system orthopaedic oncology computer-assisted orthopaedic surgery system

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http://www.sygkzz.com/EN/ OR http://www.sygkzz.com/EN/Y2019/V25/I5/423

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