Influence of kinematic alignment on femorotibial kinematics in medial stabilized TKA design compared to mechanical alignment.
Arch Orthop Trauma Surg
; 143(7): 4339-4347, 2023 Jul.
Article
en En
| MEDLINE
| ID: mdl-36282314
ABSTRACT
INTRODUCTION:
Worldwide more and more primary knee replacements are being performed. Kinematic alignment (KA) as one of many methods of surgical alignment has been shown to have a significant impact on kinematics and function. The aim of the present study was to compare KA and mechanical alignment (MA) with regard to femorotibial kinematics. MATERIALS ANDMETHODS:
Eight fresh frozen human specimens were tested on a knee rig during active knee flexion from 30 to 130°. Within the same specimen a medial stabilized (MS) implant design was used first with KA and then with MA.RESULTS:
The femorotibial kinematics showed more internal rotation of the tibia in KA compared to MA. At the same time, there was a larger medial rotation point in KA. Both alignment methods showed femoral rollback over the knee bend.CONCLUSION:
Relating to an increased internal rotation and a more precise medial pivot point, it can be concluded that KA combined with a MS implant design may partially support the reproduction of physiological knee joint mechanics.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Artroplastia de Reemplazo de Rodilla
/
Osteoartritis de la Rodilla
/
Prótesis de la Rodilla
Límite:
Humans
Idioma:
En
Revista:
Arch Orthop Trauma Surg
Año:
2023
Tipo del documento:
Article
País de afiliación:
Alemania