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Erschienen in: International Orthopaedics 11/2018

05.04.2018 | Original Paper

In vivo kinematics of gait in posterior-stabilized and bicruciate-stabilized total knee arthroplasties using image-matching techniques

verfasst von: Koji Murakami, Satoshi Hamai, Ken Okazaki, Yifeng Wang, Satoru Ikebe, Hidehiko Higaki, Takeshi Shimoto, Hideki Mizu-uchi, Yukio Akasaki, Yasuharu Nakashima

Erschienen in: International Orthopaedics | Ausgabe 11/2018

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Abstract

Purpose

This study aimed to evaluate the effects of two types of total knee arthroplasty (TKA) designs: posterior-stabilized (PS) and bicruciate-stabilized (BCS) on in vivo kinematics during gait.

Methods

Continuous X-ray images of the gait were taken using a flat panel detector for 23 PS and BCS TKAs. We analyzed the tibiofemoral implant flexion angle, anteroposterior (AP) translation, axial rotation, and anterior/posterior cam-post contact using image-matching techniques.

Results

Double knee actions were demonstrated for the PS and BCS design (35 and 61%, respectively, p = 0.08). The tibiofemoral AP positions were significantly more posterior at peak extension (− 1.7 ± 2.2 and 1.0 ± 2.5 mm, respectively, p < 0.01) and anterior at peak flexion (1.3 ± 2.3 and − 0.8 ± 2.8 mm, respectively, p = 0.01) for the PS design than for the BCS design, with a significant difference in AP translation (3.0 ± 3.9 mm anterior and 1.7 ± 2.8 mm posterior, respectively, p < 0.01). Anterior/posterior tibial post contacts were found in 83/4% and 74/30% for the PS and BCS designs, respectively, with a significant difference in posterior contact (p = 0.72/0.04, respectively).

Conclusion

The knee flexion pattern, tibiofemoral AP translation, axial rotation, and cam-post contact during gait varied, depending on the type of implant, the PS and BCS designs.
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Metadaten
Titel
In vivo kinematics of gait in posterior-stabilized and bicruciate-stabilized total knee arthroplasties using image-matching techniques
verfasst von
Koji Murakami
Satoshi Hamai
Ken Okazaki
Yifeng Wang
Satoru Ikebe
Hidehiko Higaki
Takeshi Shimoto
Hideki Mizu-uchi
Yukio Akasaki
Yasuharu Nakashima
Publikationsdatum
05.04.2018
Verlag
Springer Berlin Heidelberg
Erschienen in
International Orthopaedics / Ausgabe 11/2018
Print ISSN: 0341-2695
Elektronische ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-018-3921-z

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