Quadriceps force after non-
hinged and hinged TKA
-An in vitro biomechanical study-
978-3-639-16832-7
3639168321
48
2009-06-24
49.00 €
eng
https://images.our-assets.com/cover/230x230/9783639168327.jpg
https://images.our-assets.com/fullcover/230x230/9783639168327.jpg
https://images.our-assets.com/cover/2000x/9783639168327.jpg
https://images.our-assets.com/fullcover/2000x/9783639168327.jpg
Patients who received total knee arthroplasty
frequently show problems during
knee extension exercises due to biomechanical
alterations. Hinged knee prostheses, which
provide higher stability than non-hinged designs,
were supposed to minimize them.
Therefore we investigated the quadriceps force
required to extend the knee after non-hinged and
hinged total knee arthroplasty. Human knee specimens
were tested in a kinematic knee simulator in
physiologic conditions, after implantation of two
types of non-hinged cruciate retaining prosthesis
and a hinged prosthesis. During simulation of an
extension cycle, the change of quadriceps force to
produce the constant extension moment of 31 Nm was
measured using a load cell attached to the
quadriceps tendon. After implantation of the non-
hinged prostheses maximum quadriceps force increased
up to 1257 N in knee extension. Following the
implantation of the hinged prosthesis quadriceps
extension force decreased to 690 N in
extension. Hinged knee prostheses improve the lever
arm in knee extension due to higher knee joint
stability. This would offer a potential advantage
for patients.
https://www.morebooks.shop/books/gb/published_by/vdm-verlag-dr-mueller/3/products
Medicine
https://www.morebooks.shop/store/gb/book/quadriceps-force-after-non-hinged-and-hinged-tka/isbn/978-3-639-16832-7