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Dehong Feng,Junshan He,Chenyu Zhang,Ling Wang,Xiaofeng Gu,Yu Guo 연세대학교의과대학 2019 Yonsei medical journal Vol.60 No.9
Ameloblastoma in the tibia is rare. Limb reconstruction after tumor resection is challenging in terms of selection of the operativemethod. Here, we report a case of radical resection of an ameloblastoma in the mid-distal tibia combined with limb salvage usinga three-dimensional (3D)-printed prosthesis replacement, with 1-year follow-up results. After receiving local institutional reviewboard approval, a titanium alloy prosthesis was designed using a computer and manufactured with 3D-printing technology. Duringthe operation, the stem of the prosthesis was inserted closely into the proximal tibial medullary cavity. Then, the metal anklemortise and the talus were compacted closely. Radiographic results at 1-year follow up showed that the prosthesis was wellplaced, and no loosening was observed. The Musculoskeletal Tumor Society (MSTS) 93 functional score was 26 points, and thefunctional recovery percentage was 86.7%. Computer-assisted 3D-printing technology allowed for more volume and structuralcompatibility of the prosthesis, thereby ensuring a smooth operation and initial prosthetic stabilization. During the follow up, thepresence of bone ingrowths on the porous surface of some segments of the prosthesis suggested good outcomes for long-term biologicalintegration between the prosthesis and host bone.
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