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Validity of an instrumented knee brace compared to 3D motion navigation: a cadaveric investigation
Measurement ( IF 3.364 ) Pub Date : 2020-10-16 , DOI: 10.1016/j.measurement.2020.108590
Reneaud Nicolas; Pierre Emma; Zory Raphaël; Chorin Frédéric; Thomas Luc; Chavet Pascale; Coyle Thelma; Truchet Eric; Puech Stephane; Ollivier Matthieu; Chabrand Patrick; Gerus Pauline

The aim of this study was to test the accuracy and the reliability of 3-dimensional angular measurements of an instrumented knee brace compared to the gold standard navigation system optoelectronic cameras-based.

Thirteen cadaveric bodies were used to calculate kinematic knee parameters. Three exercises were performed, 100° flexion (FLEX100), internal/external rotation with a 30° flexion (ROT30), and the pivot shift test (PS).

The reliability was excellent with an ICC (95%) > 0.90. The agreement between the two systems showed excellent correlation in the F/E axis for FLEX100 and PS (σ (Flex/ Ext) >0.95) and strong correlation in the I/E axis for ROT30 (σ (Rot Int/ Ext) >0.939). The root mean square error (RMSE) was under 5° for all exercises considering the soft tissue artifact (STA) for the F/E axis.

Consequently, the instrumented knee brace exposed high reliability and accuracy which could end up on clinical interpretations thanks to the previous measures.

更新日期:2020-10-17

 

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