O
OA
OA is an abbreviation of 'osteoarthritis'.
OATS
OATS is an abbreviation for a surgical procedure where a core of healthy cartilage and bone is taken from an unimportant area of the knee to replace a more important damaged area. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)
Occupational therapist
An occupational therapist is a clinically-trained person who specialises in either aiding patients back to work or using work therapy as part of a treatment plan.
OCD
OCD is an abbreviation of 'osteochondral defect'. The abbreviation is also used for 'osteochondritis dissecans'.
Oedema
Oedema is excess fluid in the soft tissues.
Oedematous
Oedematous is an adjective to describe body tissue that is boggy with excess tissue fluid.
Offloading
Offloading is changing the forces through the knee joint to protect a damaged area.
One-legged balance
One-legged balance is a knee rehabilitation exercise.
Online consultation
An online consultation is a virtual meeting with a doctor facilitated by the internet.
Open chain
An exercise is 'open chain' when it involves a phase where the foot is free and not in contact with any surface.