Abstract
Background: There is a paucity of data concerning the morphological differences of resected distal femur and proximal tibias in osteoarthritis (OA) and normal knees. The objective of this study was to determine if morphometric differences exist in resected distal femur and proximal tibia surface between OA and normal knees in Chinese population. Methods: Ninety-eight OA knee and ninety-six normal ones, taken from Chinese population, were measured by computed tomography for femoral mediolateral (fML), medial anteroposterior (fMAP), lateral anteroposterior (fLAP), medial condylar width (fMCW), lateral condylar width (fLCW) and tibial mediolateral (tML), middle anteroposterior (tAP), medial anteroposterior (tMAP), lateral anteroposterior (tLAP) dimensions to determine the morphologic differences between OA and normal knees. Results: The average tMAP and fMCW dimensions were 50.2 ± 3.3 mm, 28.7±2.3 mm for OA, and 48.8 ± 3.8 mm, 27.1±2.2 mm for normal knees, respectively. There were significant differences between OA and normal knees with regard to tMAP and fMCW dimensions (p<0.05). Conclusions: The study revealed the morphological differences of tMAP and fMCW between the OA and normal groups, which may provide guidelines for designing better knee implants that are more size-matching for OA knees.
Three Dimensional Morphometric Differences of Resected Distal Femur and Proximal Tibia in Osteoarthritis and Normal Knees
