A device (1) for placing the joint of the knee of a person in contraction with a view to performing an examination of the said knee. The device comprises: a structure (2) adapted to receive the person in a seated or recumbent position, locking means (4) for locking a corresponding thigh of the person with respect to the structure, and a toe-clip (5D, 5G), adapted to receive a corresponding foot of the person, the said toe-clip comprising means for locking the foot of the person and being rotatable about an axis (RD, RG) adapted to be placed perpendicular to the foot of the person.
