THE PKTD®, A KNEE LAXITY TESTING DEVICE FOR MEASUREMENT OF ANTEROPOSTERIOR, POSTEROANTERIOR TIBIAL TRANSLATION AND INTERNAL/EXTERNAL ROTATION DURING THE MRI/CT-SCAN EXAMINATION.
This device is made of a plastic polyurethane allowing it to be used during MRI/CT-scan, in positions in which the knee is placed under stress caused by plungers and its supporting pieces that force the leg with a standardized pressure applied in its proximal third, in the anterior or posterior direction (fig. 2, A&B) and lateral and medial side of the foot.
The measurements are determined using two sets of MRI (closed or open MRI) images with 1mm spacing, one without (at rest) and another with the application of pressure and 3D reconstructions. Both injured and healthy knees can be evaluated.