Editorial Commentary: The Pivot-Shift Phenomenon Is Multifactorial.
The biomechanical study on the role of the anterior cruciate ligament and anterolateral structures in controlling internal tibial rotation has some major limitations: creation of a large injury to the anterolateral structures, examination only at 30° of flexion, only one outcome variable (internal rotation), and no application of different combined forces. This "worst-case scenario" does not represent the typical injury pattern, and therefore the results might overestimate the influence of these structures on rotatory laxity. Essentially, the pivot-shift phenomenon is multifactorial and injuries or insufficiency of the anterolateral structures are only one explanation.
University of Pittsburgh.
Freddie H
FH
Fu
University of Pittsburgh.
Elmar
E
Herbst
D016118:Anterior Cruciate Ligament; D001696:Biomechanical Phenomena; D006801:Humans; D007593:Joint Instability; D007719:Knee Joint; D016059:Range of Motion, Articular