3D-printed prosthesis replacement for limb salvage after radical resection of an ameloblastoma in the tibia with 1 year of follow up: A case report

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Abstract

Ameloblastoma in the tibia is rare. Limb reconstruction after tumor resection is challenging in terms of selection of the operative method. Here, we report a case of radical resection of an ameloblastoma in the mid-distal tibia combined with limb salvage using a three-dimensional (3D)-printed prosthesis replacement, with 1-year follow-up results. After receiving local institutional review board approval, a titanium alloy prosthesis was designed using a computer and manufactured with 3D-printing technology. During the operation, the stem of the prosthesis was inserted closely into the proximal tibial medullary cavity. Then, the metal ankle mortise and the talus were compacted closely. Radiographic results at 1-year follow up showed that the prosthesis was well placed, and no loosening was observed. The Musculoskeletal Tumor Society (MSTS) 93 functional score was 26 points, and the functional recovery percentage was 86.7%. Computer-assisted 3D-printing technology allowed for more volume and structural compatibility of the prosthesis, thereby ensuring a smooth operation and initial prosthetic stabilization. During the follow up, the presence of bone ingrowths on the porous surface of some segments of the prosthesis suggested good outcomes for long-term biological integration between the prosthesis and host bone.

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APA

Feng, D., He, J., Zhang, C., Wang, L., Gu, X., & Guo, Y. (2019). 3D-printed prosthesis replacement for limb salvage after radical resection of an ameloblastoma in the tibia with 1 year of follow up: A case report. Yonsei Medical Journal, 60(9), 882–886. https://doi.org/10.3349/ymj.2019.60.9.882

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