In-depth

Arthroscopy

Got a painful joint? With arthroscopy, you can find out why — and get relief.

Avascular necrosis

Baker's cyst

A Baker's cyst is a swollen area behind your knee. Treating the primary cause — such as arthritis or a cartilage tear — usually helps relieve pain.

Bone spurs

CT scan

Hemophilia

Knee braces

A knee brace may reduce osteoarthritis pain in your knee by shifting the force of your weight off the damaged part of your knee when you walk.

Knee bursitis

Knee replacement

Find out what to expect before, during and after knee replacement surgery.

Leg swelling

Lyme disease

Lyme disease is a tick-borne illness. Left untreated, it can lead to serious and lingering complications — including arthritis.

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Osgood-Schlatter disease

Osgood-Schlatter disease can cause pain, swelling and tenderness below the kneecap. This common condition often affects young athletes involved in running, jumping and bending activities.

Patellar tendinitis

Polymyalgia rheumatica

Polymyalgia rheumatica is an inflammatory disorder that causes pain and stiffness in the neck, shoulders, upper arms, hips and thighs.

Posterior cruciate ligament injury

Less common than an ACL knee injury, a torn posterior cruciate ligament can be painful and sideline you for months. Find out more.

Torn meniscus

Twisting the knee can cause a common knee injury known as a torn meniscus. Treatment sometimes includes surgery.

Ultrasound

X-ray

July 12, 2013