When is knee arthroscopy actually needed, and when is it not?

Situations where arthroscopy usually helps

• A knee locked by a torn meniscus fragment or loose body
• A meniscus tear suitable for repair, especially in younger, active patients
• A meniscal root tear in a knee without advanced arthritis
• ACL or other ligament reconstruction
• Certain cartilage injuries and osteochondritis dissecans
• Persistent catching from a flap tear despite proper rehabilitation
• Some cases of synovitis or infection needing washout

Situations where it is rarely the answer

Knee osteoarthritis is the main example. Washing out or trimming an arthritic knee has been shown in good studies to give little lasting benefit over physiotherapy. Gradual degenerative meniscus tears in middle age without locking also usually do well with exercise first. Arthroscopy is not used just to look around a painful knee when MRI and examination already give the answer.

When to see a knee surgeon

Book an assessment if your knee locks or will not straighten, swells repeatedly, gives way, or has not improved after six to twelve weeks of good rehabilitation. Seek urgent care for a hot, red, very swollen knee with fever, or after a high-energy injury with severe swelling or deformity.

Getting a considered opinion

If you have been advised to have arthroscopy and are unsure, it is reasonable to ask why, what will be done, and what happens if you wait. Dr. Gelber at Aman Hospital in Doha examines the knee, reviews any imaging and explains the options, including whether surgery is needed at all.