Knee A to Z

Squinting patellae is when the two kneecaps face towards each other despite the patient standing comfortably with the feet facing forwards. Page updated June 2024 by Dr Sheila Strover (Clinical Editor)

STACi is an abbreviation of Single Stage Autologous Chondrocyte Implantation.

Standing wall slides are knee rehabilitation exercises to improve flexion and strengthen the quads muscles.

Staples for ACL graft fixation are made of cobalt chrome with two sharp leg spikes for easier penetration into the bone without predrilling.

A static bicycle is an exercise bicycle on a stand, where the wheels turn but the bicycle stays still.

Static quads are very early knee rehabilitation exercises to activate the quadriceps muscle of the lap.

A stem cell is an unspecialised cell with a remarkable ability to divide over and over and become differentiated into another type of cell, replacing damaged body tissue.

A stem cell line is a commercial culture of stem cells all derived from the same original cell source, which has been allowed to multiply.

Stem cells are unspecialised cells with a remarkable ability to reproduce and become differentiated into another type of cell, replacing damaged body tissue.

Step ups are knee rehabilitation exercises for rebuilding early quadriceps muscle strength.