Osteoarthritis is the form of arthritis which is the most common in the knee.

medial joint line thinning of the knee

Narrowing of the joint line gap on the medial side in both knees, probably from removal of the meniscus.

medial joint line thinning in osteoarthritis of the knee

Narrowing of the joint line gap may precede the development of osteoarthritis on that side.


Classical signs and symptoms of osteoarthritis

Classical symptoms include pain at rest, reduced exercise tolerance, joint swelling.

Classical imaging signs include joint line narrowing, bone spurs, bone cysts, areas of increased bone denisty (sclerosis).

Usually knee osteoarthritis begins in one part of the knee (what we call a 'compartment'), and only later does it progress to involve the other compartments. This gives the patient the option to try to arrest progression by suitable intervention.

wear-and-tear arthritis

Injections into the knee for knee arthritis

An overview of the various products used for knee arthritis by injection into the knee joint.

Knee osteoarthritis and diet

How the food you eat can affect your knees.

A simple flowchart with links to show the possible interventions in cases of knee arthritis.

Discussion of factors causing arthritis pain to precede X-ray changes.

Joint Cartilage & Osteoarthritis

Papers about joint cartilage problems in the knee, delivered at a very basic level.




Determinants of pain in patients with symptomatic knee osteoarthritis. Heidari B, Hajian-Tilaki K, Babaei M. Caspian J Intern Med. 2016 Summer;7(3):153-161.

Micro-fragmented adipose tissue injection associated with arthroscopic procedures in patients with symptomatic knee osteoarthritis. Cattaneo G, De Caro A, Napoli F, Chiapale D, Trada P and Camera A. BMC Musculoskelet Disord. 2018; 19: 176..

Current Surgical Treatment of Knee Osteoarthritis. Rönn K, Reischl N, Gautier E and Jacobi M. Arthritis. 2011; 2011: 454873.

See also:


man reading

eBook - Knee arthritis interventions when you are too young for a total knee replacement

Easy-to-read book about the alternatives to knee replacement in the younger patient.

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Webinar - Cell Therapy in Osteoarthritis.