A mechanized and standardized pivot shifter: technical description and first evaluation

Abstract

The MPS demonstrated no significant differences in the tibiofemoral translation magnitudes compared to the manual technique. It resulted in better test-retest reliability and more consistent measurements of tibiofemoral translation when compared to manual PST. The high repeatability factor conferred by the MPS is a clinical advantage.

Development of computer tablet software for clinical quantification of lateral knee compartment translation during the pivot shift test

“…Other systems have been reported to provide a quantitative evaluation of the pivot shift test, such as electromagnetic tracking (Bull et al 2002;Hoshino et al 2007;Labbe et al 2011;Engebretsen et al 2012), computer navigation (Lane et al 2008;Ishibashi et al 2009;Pearle et al 2009;Bignozzi et al 2010;Lopomo et al 2010;Citak et al 2011), and inertial sensors (Maeyama et al 2011;Kopf et al 2012;). However, none of these systems are easily applicable in a clinical setting secondary to limitations such as invasiveness (i.e., requiring bony fixation), cost, and development primarily for research purposes.…”

Software for compartmental translation analysis and virtual three-dimensional visualization of the pivot shift phenomenon

“…The mechanized pivot shifting device reproducibly induces a positive pivot shift test in ACLdeficient knees and has been shown to provide better repeatability than a manual examination [14] ( Figure 1). During each mechanized examination, Figure 1.…”

Anterior Cruciate Ligament Injuries Identifiable for Pre-participation Imagiological Analysis: Risk Factors

“…Pivot-shift test has been considered a better predictor of clinical outcomes than any other uniplanar maneuver (Katz and Fingeroth 1986;Citak et al 2011). Nevertheless, the Lachman test has been considered as more sensitive (Prins 2006), and the limitations of the pivotshift test, particularly in an awake patient, must be considered.…”

“…Robotic systems have promised to overcome bias inherent to manual force application by means of comprising mechanical methods to apply load or torque in a controlled mode (magnitude, direction, rate) (Lob et al 2006;Park et al 2008;Tsai et al 2008;Robert et al 2009;Woo and Fisher 2009;Branch et al 2010a;Musahl et al 2010;Citak et al 2011;Mayr et al 2011). …”

“…It has been demonstrated in cadaveric hipto-toe models that mechanized pivot-shift tests provide more reliable and consistent measurements of pivot-shift phenomenon (Musahl et al 2010;Citak et al 2011). Another device designed to assess knee rotation in non-injured knees has also been presented including its intra-tester, test-retest, and inter-tester reliability (Tsai et al 2008).…”