Rotational stability is of great importance to floating vessels.

Rotational stability is a key aspect for a turntable to produce quality output.

They concluded that the quality of endplate contact may be the most important factor for axial rotational stability.

Rotational stability depends on the relative lines of action of forces on an object.

It prevents the tibia from sliding out in front of the femur, and provides rotational stability to the knee.

The PCL also plays a role as a central axis controlling and imparting rotational stability to the knee.

The KTD does not afford the rotational stability normally seen in long bone traction splints.

They are joined by a septum of connective tissue and function synergistically in providing both anterior-posterior translation and rotational stability to the knee.

This may explain the poor rotational stability with rectangular cages as observed by Lund et al [ 4 ] The Contact cages have smooth surfaces to fit the endplate contour.

In our study, insertion of the rectangular cages (Corin) increased the rotational stability compared to the control, and the stability was comparable to that with the cylindrical (BAK) cages.