High validity of measuring the width and volume of medial meniscal extrusion three-dimensionally using an MRI-derived tibial model
Autor: | Kenji Hoshi, Yasuo Kurose, Goro Watanabe, Kazuyoshi Gamada |
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Rok vydání: | 2020 |
Předmět: |
medicine.medical_specialty
Medial meniscus Maximal surface Osteoarthritis Plateau (mathematics) 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine lcsh:Orthopedic surgery medicine Orthopedics and Sports Medicine Tibia Meniscal extrusion 030203 arthritis & rheumatology Three-dimensional models business.industry Research Osteophyte medicine.disease lcsh:RD701-811 CT-derived models medicine.anatomical_structure Tibial plateau Orthopedic surgery Nuclear medicine business Volume (compression) |
Zdroj: | Journal of Experimental Orthopaedics, Vol 7, Iss 1, Pp 1-10 (2020) Journal of Experimental Orthopaedics |
ISSN: | 2197-1153 |
DOI: | 10.1186/s40634-019-0216-2 |
Popis: | Background Medial meniscal extrusion (MME) is an important marker of knee osteoarthritis (KOA) progression. The purposes of this study were: 1) to determine whether there are morphological differences between CT- and MRI-derived tibial plateau models; and 2) to determine whether measurement of MME volume and width using an MRI-derived tibial model is as accurate as measurements on a CT-derived tibial model. Methods This was a cross-sectional study that enrolled ten participants with medial KOA (Kellgren-Lawrence grade 1 to 3). Primary outcome was surface difference of the medial tibial plateau between CT- and MRI-derived models. Furthermore, volume and cross-sectional area of the medial tibial plateau were compared between CT- and MRI-derived models. Measurements of MME volume and width were compared between CT- and MRI-derived tibial models. Results Minimal and maximal surface differences of the medial tibial plateau between the CT- and MRI-derived models were − 0.15 [− 0.44, 0.14] mm (mean [95% confidence interval]) and 0.24 [− 0.09, 0.57] mm, respectively. There were no significant differences in volume and cross-sectional area of the medial tibial plateau between CT- and MRI-derived tibial models. The MME volumes measured on CT- and MRI-derived models were 942.6 [597.7, 1287.6] mm3 and 916.2 [557.9, 1274.6] mm3, respectively (p = 0.938). The MME widths measured on CT- and MRI-derived models were 4.2 [1.9, 6.5] mm and 4.5 [2.2, 6.9] mm, respectively (p = 0.967). Conclusions CT- and MRI-derived models of the medial tibial plateau did not show significant morphological differences. Both CT- and MRI-derived tibia can be used as a reference to measure MME in early-to-moderate medial KOA. |
Databáze: | OpenAIRE |
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