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Reconstruction of a 3D-printed endoprosthesis after joint-preserving surgery with intraoperative physeal distraction for childhood malignancies of the distal femur

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机构： [1]Department of Orthopedics, Orthopaedic Research Institute, West China Hospital, Sichuan University, Chengdu, People’s Republic of China [2]Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, No. 37 Guoxue Road, Chengdu 610041, Sichuan, People’s Republic of China

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关键词： Joint-preserving 3D-printed endoprosthesis Physeal distraction Femur Children Reconstruction

摘要：

Joint-salvage surgery has been proposed in children with metaphysis malignancy of the distal femur. However, there is still some drawbacks regarding to the surgical technique and endoprosthetic design. In this study, we evaluated the efficacy of a joint-sparing surgical technique for the distal femur in pediatric patients using intraoperative physeal distraction and reconstruction of a 3D-printed endoprosthesis.We retrospectively analyzed pediatric patients with distal femoral malignancy who underwent intraoperative physeal distraction and 3D-printed endoprosthetic reconstruction. Clinically, we evaluated functional outcomes using the 1993 version of the Musculoskeletal Tumor Society (MSTS-93) score pre- and post-operation. Complications were also recorded.Seven children with a median age of 11 years (range 8-15 years) were finally included in our study. The median follow-up time was 30 months (range 27-59 months). The median postoperative functional MSTS-93 score was increased compared with the preoperative scores. The bone-implant interface showed good osseointegration. One patient developed deep infection and another had lung metastasis after surgery. Endoprosthetic complications were not observed.We recommended that joint-preserving surgery with intraoperative physeal distraction and a 3D-printed endoprosthesis for reconstruction as an option for malignancies of the distal femur in selected pediatric patients.© 2023. The Author(s).

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出版当年[2023]版：

大类 | 3 区医学

小类 | 3 区骨科

最新[2023]版：

大类 | 3 区医学

小类 | 3 区骨科

第一作者：

第一作者机构： [1]Department of Orthopedics, Orthopaedic Research Institute, West China Hospital, Sichuan University, Chengdu, People’s Republic of China [2]Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, No. 37 Guoxue Road, Chengdu 610041, Sichuan, People’s Republic of China

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通讯机构： [1]Department of Orthopedics, Orthopaedic Research Institute, West China Hospital, Sichuan University, Chengdu, People’s Republic of China [2]Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, No. 37 Guoxue Road, Chengdu 610041, Sichuan, People’s Republic of China

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