| Literature DB >> 29881213 |
Koji Murakami1, Satoshi Hamai1, Ken Okazaki2, Hirotaka Gondo3, Yifeng Wang3, Satoru Ikebe4, Hidehiko Higaki3, Takeshi Shimoto5, Hideki Mizu-Uchi1, Yukio Akasaki1, Yasuharu Nakashima1.
Abstract
This study aimed to evaluate clinical outcomes and in vivo kinematics of bi-cruciate stabilized (BCS) total knee arthroplasty (TKA), using image-matching techniques. We analyzed tibiofemoral anteroposterior translation, axial rotation, and anterior/posterior cam-post contact for 22 BCS TKAs during squatting and stair-climbing. The functional activities on the 2011 Knee Society Score were significantly improved from 36 to 71. The tibiofemoral translation and axial rotation during squatting/stair-climbing were 16.1 mm/7.1 mm and 2.5° external/1.1° internal, respectively. Anterior/posterior cam-post contacts were observed during squatting (14%/96%) and stair-climbing (27%/96%). In conclusion, BCS TKA produced physiological sagittal plane kinematics during activities with favorable clinical outcomes.Entities:
Keywords: Bi-cruciate stabilized; Cam-post mechanism; Image-matching techniques; Kinematics; Total knee arthroplasty
Year: 2018 PMID： 29881213 PMCID： PMC5990240 DOI： 10.1016/j.jor.2018.05.003
Source DB: PubMed Journal: J Orthop ISSN： 0972-978X