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

摘要

Purpose The pivot shift test (PST) is a complex, multiplanar maneuver used to assess rotatory instability of the knee. The grading is subjective due to the broad range of examination techniques and lack of tibiofemoral motion quantification. The goal of this study was to develop and evaluate a mechanized device for quantitative assessment of the PST.