全膝关节置换术后无菌性松动一例，尽管有额外骨生长的进展。

Q4 Medicine Radiology Case Reports Pub Date : 2025-04-01 Epub Date: 2025-01-18 DOI:10.1016/j.radcr.2025.01.019

Ryota Miyamoto MD , Yasushi Goto MD , Toshitaka Fujito MD, PhD , Hirohito Abe MD, PhD , Yasuo Kunugiza MD, PhD

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摘要

全膝关节置换术后假体周围骨折采用巨型假体全膝关节置换术与早期功能恢复有关，但无菌性假体松动一直是巨型假体全膝关节置换术长期预后的主要再手术因素。骨-领界面骨整合引起的牙外骨形成可能通过促进骨形成和改善骨-种植体固定来减少无菌性松动的可能性。在此，我们报告一例全膝关节置换术，采用多孔涂层假体的巨型假体，在假体骨未整合的情况下出现额外的骨生长，并导致无菌性松动。

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A case of aseptic loosening after total knee replacement with porous-coated mega prosthesis despite progression of extra bone growth

Total knee replacement with mega prosthesis for periprosthetic fractures after total knee arthroplasty is related to early functional recovery, but aseptic loosening of the implant has been a major reoperation factor in the long-term outcome of total knee replacement with mega prosthesis. Extracortical bone formation caused by bone-collar interface osteointegration may decrease the probability of aseptic loosening by promoting bone formation and improving bone-implant fixation. Here, we report a case of total knee replacement using mega prosthesis with porous-coated collar showing extra bone growth without osteointegration of prosthesis and leading to aseptic loosening.

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来源期刊

Radiology Case Reports Medicine-Radiology, Nuclear Medicine and Imaging

CiteScore

1.10

自引率

0.00%

发文量

1074

审稿时长

30 days

期刊介绍： The content of this journal is exclusively case reports that feature diagnostic imaging. Categories in which case reports can be placed include the musculoskeletal system, spine, central nervous system, head and neck, cardiovascular, chest, gastrointestinal, genitourinary, multisystem, pediatric, emergency, women''s imaging, oncologic, normal variants, medical devices, foreign bodies, interventional radiology, nuclear medicine, molecular imaging, ultrasonography, imaging artifacts, forensic, anthropological, and medical-legal. Articles must be well-documented and include a review of the appropriate literature.