What Causes Ridges in Fingernails?
Ridges in fingernails can run horizontally or vertically.1 They are common and harmless, but some fingernail ridges—particularly horizontal ones—can indicate a health problem such as a thyroid issue.
Repetitive Pitching Decreases the Elbow Valgus Stability Provided by the Flexor-Pronator Mass: The Effects of Repetitive Pitching on Elbow Valgus Stability
Baseball pitching induces a large elbow valgus load, stressing the ulnar collateral ligament. Flexor-pronator mass contraction contributes to valgus stability; however, repetitive baseball pitching may weaken the flexor-pronator mass contractile function.
Trapeziectomy: Everything You Need to Know
A trapeziectomy is a surgical procedure in which the trapezium, one of the bones of the wrist, is removed to treat symptoms of thumb arthritis. Most people experience an improvement in their arthritis symptoms after a trapeziectomy, including decreased pain and improved use of their thumb for gripping, pinching, and grasping.
How to Wear a Shoulder Sling
After an injury to your shoulder, elbow, arm, or wrist, you might need to wear a sling to protect it while you’re healing. A shoulder sling keeps your arm against your body and prevents you from moving it too much.
A Fractured Metacarpal: What You Need to Know
A metacarpal fracture is a common injury of the hand that involves one or more of the five metacarpal bones that run from the wrist (carpal) bones to the knuckles.1 An impact injury, such as a fall or blow to the hand, is usually the cause.











