Kenneth J. Koval MD


Spinal Stenosis: Lumbar

When the spinal canal in the low back becomes narrower (stenosis), the nerve roots get squeezed.

Wrist Tendon Injury: Preventing Pain

Inflammation or small tears in a tendon ( tendinopathy ) can cause wrist pain. Although tendinopathy is a different condition than carpal tunnel syndrome, both can respond to the same home treatment tips: Gently warm up your wrists and fingers before beginning an activity. Fan open your fingers. Stretch your wrists…

Knee replacement surgery

Normal knee joint Inside a normal knee joint, thick cushioning (cartilage) covers and protects the ends of your bones. This is called hyaline cartilage. Another type of cartilage, called meniscal cartilage or meniscus, acts like a shock absorber between the bones and keeps the knee joint stable by spreading out the load…

Shoulder Replacement Surgery

Covers shoulder surgery to replace the ends of bones in a damaged joint. Includes what to expect after surgery, continued recovery, and living with a shoulder replacement. Looks at why it is done, how well it works, and the risks of surgery.

Lumbar Spinal Stenosis

Is this topic for you? This topic is about spinal stenosis of the lower back, also known as the lumbar area. If you need information on spinal stenosis of the neck, see the topic Cervical Spinal Stenosis. What is lumbar spinal stenosis? Lumbar spinal stenosis is a narrowing of the spinal canal in the lower back, known…