Knee A to Z

The vastus intermedius is one of the four heads of the quadriceps muscle group making up the muscle at the front of the thigh.

The vastus lateralis muscle is one of the four heads of the quadriceps muscle.

The vastus medialis muscle is one of the four heads of the quadriceps muscle of the thigh. Page updated February 2024 by Dr Sheila Strover (Clinical Editor)

The vastus medialis obliquus is the lower part of the vastus medialis muscle, where the fibres are oblique, tending to act as guy ropes pulling the patella towards the medial side. It is commonly referred to as the VMO.

A venogram is an X-ray of the veins, which is made possible by injecting a radio-opaque dye into the veins. The procedure is called 'venography'.

The ventrum is the undersurface of a structure.

A vertical tear usually of the knee meniscus refers to a tear which runs vertically from the upper surface to the lower surface.

Viscosupplementation is the injection into the knee of a lubricating mixture usually containing hyaluronic acid.

A visual analogue scale is a system to rate a person's level of a particular symptom along a line drawn between two fixed points.

VMO is an abbreviation of 'vastus medialis obliquus', which is a part of the quadriceps (quads) muscle. Page updated June 2023 by Dr Sheila Strover (Clinical Editor)