Fig. 1From: Compositional MRI of the anterior cruciate ligament of professional alpine ski racers: preliminary report on seasonal changes and load sensitivitya MRI-safe, pneumatically driven knee fixation device. The “boot” of the device may be rotated upwards, to exert pressure against the posterior aspect of the calf, with the thigh being firmly anchored. This creates a Lachman test-like scenario in which the anterior cruciate ligament is strained. b Subject positioning within the deviceBack to article page