Analysis of Unused and Retrieved Tibial Inserts Made of Beta-Sterilized Conventional Ultra-High-Molecular-Weight Polyethylene by Raman Spectroscopy and Fourier Transform Infrared Spectroscopy / ラマン分光分析およびフーリエ変換赤外線分析を用いたβ線滅菌UHMWPE脛骨インサートの解析
- Resource Type
- Journal Article
- Authors
- Giuseppe Pezzotti; Leonardo Puppulin; Shine TONE; 伊東 直也; 刀根 慎恵; 海野 宏至; 湏藤 啓広; 鈴木 慶亮; 長谷川 正裕
- Source
- 日本関節病学会誌 / Japanese Journal of Joint Diseases. 2017, 36(2):147
- Subject
- beta sterilization
crystallinity
lipid
oxidation index
total knee arthroplasty
- Language
- Japanese
- ISSN
- 1883-2873
1884-9067
Results: Increases of maximum oxidation index, lipid and crystallinity were observed in all the retrieved samples as compared with the unused samples; each parameter correlated with in vivo time in both load zones. Furthermore, the maximum oxidation index showed strong correlation with maximum crystallinity and maximum lipid. We observed the white band at the depth of 2-3 mm from the bearing surface in most of the slices obtained from the mid-term retrievals.