Knee A to Z

An epidural catheter is a fine tube which is inserted into the epidural space around the spinal cord, for the administration of an anaesthetic agent.

The epidural space is a tissue space around the spinal cord outside of the spinal cavity in which the cord runs.

The epiphysis is the rounded end of any long bone, adjacent to the growth plate, and which is the part involved in the actual joint.

ERMI is the abbreviation of End Range Motion Improvement, using a rehabilitation device to improve range of motion of the joint.

Erythema means redness of the skin.

Embryonic stem cell - a stem cell derived from an embryo.

Abbreviation for the 'European society of shoulder, knee and ankle surgery'.

A recommendation that is evidence based has been underpinned by peer-reviewed published studies.

Excessive lateral pressure syndrome (ELPS) is a painful problem where the edge of the kneecap is pressing too tightly against the outer wall of the underlying groove. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)

Excision is the procedure of cutting something out, like a tumour or a torn piece of meniscus.