Primary stability of unicompartmental knee arthroplasty under dynamic flexion movement in human femora

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• 作者：Thomas M. Grupp^a ; ^b ; ¹ ; ^{thomas.grupp@aesculap.de} ; Melanie Holderied^a ; ¹ ; Matthias F. Pietschmann^b ; Christian Schrö ; der^b ; Angé ; lica P. Islas Padilla^c ; Christoph Schilling^a ; Volkmar Jansson^b ; Peter E. Mü ; ller^b
• 关键词：Unicompartmental knee arthroplasty ; Femoral component ; Primary stability ; Bone fixation area ; Dynamic flexion movement loading conditions
• 刊名：Clinical Biomechanics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：39-47
• 全文大小：1766 K
• 卷排序：41

文摘

Human knees were used for medial UKA in a less invasive parapatellar approach. Primary stability was evaluated for a trabecular stem vs a cortical teeth fixation. Dynamic flexion & double-peak loading simulating stair climbing was applied. A 3D displacement & migration analysis of the femoral implant to the bone was used. An increased primary stability of the trabecular stem fixation was found.