Abstract
New research on Robotics is the subject of a report. According to news reporting from Pittsburgh, Pennsylvania, by NewsRx journalists, research stated, "An optimal load and ankle position for stress ultrasound of injured anterior talofibular ligament (ATFL) is unknown. Objectives of this study were to compare stress ultrasound and ankle kinematics from a 6 degree-of-freedom (6-DOF) robotic testing system as a reference standard for evaluation of injured ATFL and suggest cut-off values for ultrasound diagnosis." The news correspondents obtained a quote from the research from the University of Pittsburgh School of Medicine, "Ten fresh-frozen human cadaveric ankles were used. Loads and ankle positions examined by 6-DOF robotic testing system were: 40 N anterior load, 1.7 Nm inversion and 1.7 Nm internal rotation torques at 30° plantarflexion, 15° plantarflexion, and 0° plantarflexion. Bony translations were measured by ultrasound and robotic testing system under the above conditions. After measuring intact ankle, ATFL was transected at its fibular attachment under arthroscopy. Correlations between ultrasound and robotic testing system were calculated with Pearson correlation coefficients. Paired t-tests were performed for comparison of ultrasound measurements of translation between intact and transected ATFL, and unloaded and loaded conditions in transected ATFL. Good agreement between ultrasound measurement and that of robotic testing system was found only in internal rotation at 30° plantarflexion (ICC=0.77; 95% Confidence Interval 0.27-0.94). At 30° plantarflexion, significant differences in ultrasound measurements of translation between intact and transected ATFL (p ＜0.01) were found in response to 1.7 Nm internal rotation torque, and non-stress and stress with internal rotation (p ＜0.01) with mean differences of 2.4 mm and 1.9 mm respectively."
NETL
NSTL