Effect of tibial slope changes on femorotibial contact kinematics after cruciate-retaining total knee arthroplasty

• Published in: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2017-11, Vol.25 (11), p.3549-3555
• Main Authors: Pan, Xi-qing, Peng, A-qin, Wang, Fei, Li, Feng, Nie, Xi-zeng, Yang, Xi, Ji, Gang, Wang, Xiao-meng
• Format: Article
• Language: English
• Subjects: Aged; Arthroplasty (knee); Arthroplasty, Replacement, Knee - methods; Biocompatibility; Biomechanical Phenomena; Biomedical materials; Female; Femur; Femur - diagnostic imaging; Femur - physiopathology; Femur - surgery; Humans; Joint surgery; Kinematics; Knee; Knee Joint - diagnostic imaging; Knee Joint - physiopathology; Knee Joint - surgery; Knee Prosthesis; Medicine; Medicine & Public Health; Middle Aged; Orthopedics; Osteoarthritis; Osteoarthritis, Knee - diagnostic imaging; Osteoarthritis, Knee - physiopathology; Osteoarthritis, Knee - surgery; Prostheses; Radiographs; Radiography; Range of Motion, Articular; Skin & tissue grafts; Surgical implants; Tibia - diagnostic imaging; Tibia - physiopathology; Tibia - surgery; Weight-Bearing
• ISSN: 0942-2056; 1433-7347
• DOI: 10.1007/s00167-016-4384-7

Purpose The present study was undertaken to evaluate the effect of tibial slope (TS) changes on the femorotibial articular contact kinematics in subjects undergoing posterior cruciate-retaining total knee arthroplasty (CRTKA). Methods Eighteen knees in nine patients with medial osteoarthritis who underwent CRTKA using the same size prosthesis were analysed preoperatively and 2 years after TKA. TS changes were calculated on lateral radiographs taken before and after TKA. Knees were classified into two groups according to the change in TS obtained by subtracting the post-operative value from the preoperative value: group 1 (>3°) and group 2 (