Regaining Native Knee Kinematics Following Joint Arthroplasty: A Novel Biomimetic Design with ACL and PCL Preservation

详细信息    查看全文

• 作者：Thomas Zumbrunn ; MS^a ; ^b ; ; Kartik Mangudi Varadarajan ; PhD^a ; Harry E. Rubash ; MD^a ; Henrik Malchau ; MD ; PhD^a ; Guoan Li ; PhD^c ; Orhun K. Muratoglu ; PhD^a
• 关键词：total knee arthroplasty ; ACL preservation ; BCR implant design ; biomimetic ; kinematics ; dynamic simulations
• 刊名：The Journal of Arthroplasty
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：30
• 期：12
• 页码：2143-2148
• 全文大小：786 K

文摘

Lack of ACL and non-anatomic articular surfaces in contemporary total knee implants result in kinematic abnormalities. We hypothesized that such abnormalities may be addressed with a biomimetic bi-cruciate retaining (BCR) design having anatomical articular surfaces. We used dynamic computer simulations to compare kinematics among the biomimetic BCR, a contemporary BCR and cruciate-retaining implant for activities of daily living. During simulated deep knee bend, chair-sit and walking, the biomimetic BCR implant showed activity dependent kinematics similar to healthy knees in vivo. Restoring native knee geometry together with ACL preservation provided these kinematic improvements over contemporary ACL-preserving and ACL-sacrificing implants. Further clinical studies are required to determine if such biomimetic implants can result in more normal feeling knees and improve quality of life for active patients.