Computer-assisted evaluation of kinematics of the two bundles of the anterior cruciate ligament.
Biomed Tech (Berl)
; 52(5): 316-22, 2007 Oct.
Article
en En
| MEDLINE
| ID: mdl-17915993
The aim of this cadaveric study was to describe the kinematics of the anterior cruciate ligament (ACL)-intact, posterolateral (PL) bundle-deficient and ACL-deficient knee by applying a protocol for computer-assisted evaluation of knee kinematics. The hypothesis that the PL bundle functions mainly at low knee flexion angles was tested. An optical tracking system was used to acquire knee joint motion on 10 knees during clinical evaluations by tracking markers rigidly attached to the bones. The protocol included acquisition of anterior-posterior (AP) translations and internal-external (IE) rotations, and evaluation of three clinical knee laxity tests (anterior drawer, manual and instrumented Lachman). The data demonstrated no significant contribution to AP translation and IE laxity from the PL bundle over the entire range of motion. The clinical knee laxity tests showed no significant differences between the ACL-intact and PL bundle-deficient states. The hypothesis could not be proven. Current clinical knee laxity measurements may not be suited for detecting subtle changes such as PL bundle deficiency in the ACL anatomy. The computation of knee laxity might be a step towards a more precise kinematic test of knee stability not only in the native and torn ACL state of the knee but also in the reconstructed knee.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenómenos Biomecánicos
/
Simulación por Computador
/
Ligamento Cruzado Anterior
/
Rango del Movimiento Articular
/
Articulación de la Rodilla
/
Modelos Biológicos
/
Movimiento
Tipo de estudio:
Guideline
Límite:
Humans
Idioma:
En
Revista:
Biomed Tech (Berl)
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Alemania