A
Articular cartilage repair
Articular cartilage repair is the repair or improvement of defects of the joint cartilage, either by surgery or biological intervention, or both. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)
Artificial meniscus
An artificial meniscus is a manufactured device that is slipped into the gap where a knee meniscus has previously been removed.
Aspiration
Aspiration of the knee is the removal of fluid from inside the joint, using a needle and syringe. Page updated September 2023 by Dr Sheila Strover (Clinical Editor)
Assisted flexion
Assisted flexion is a knee rehabilitation exercise where the good leg acts as a helper to increase the flexion.
Assisted passive extensions
Assisted passive extensions are knee rehabilitation exercises to improve leg extension when the muscles are weak. Page updated July 2024 by Dr Sheila Strover (Clinical Editor)
Athletic trainer
An athletic trainer is a professional specialising in athletic health care and fitness.
Atrophic
Atrophic means 'wasted', ie muscle wasting.
Atrophy
Atrophy means tissue wasting with actual loss of tissue cells (eg muscle atrophy, limb atrophy).
Autograft
An autograft is a graft taken from one part of a person and transplanted elsewhere in the same person.
Autologous
Autologous refers to tissue that is going to be used for transplant from one part of the body to another in the same person.