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Hand and Wrist · Hand and Upper ExtremityThumb Arthritis
Arthritis at the base of the thumb, the carpometacarpal joint, causing pain with pinching, gripping and twisting that makes jars, keys and doorknobs a daily obstacle. 
Hand and Wrist · Hand and Upper ExtremityHand and Finger Fractures
Breaks of the finger bones and the long bones of the hand, from falls, punches, ball sports and crush injuries. Most heal with splinting; some need pins or plates to keep the fingers straight. 
Elbow · Hand and Upper ExtremityCubital Tunnel Syndrome
Compression or irritation of the ulnar nerve behind the elbow, the funny bone, causing numbness in the ring and small fingers and, over time, hand weakness. 
Hand and Wrist · Hand and Upper ExtremityDe Quervain Tenosynovitis
Inflammation of the two tendons that run along the thumb side of the wrist, causing sharp pain with lifting, gripping and turning the wrist. 
Hand and Wrist · Hand and Upper ExtremityDupuytren Contracture
A thickening of the tissue under the skin of the palm into nodules and cords that slowly pull the fingers toward the palm until the hand will not lie flat. 
Hand and Wrist · Hand and Upper ExtremityGanglion Cysts
A benign fluid-filled lump that balloons from a joint or tendon sheath, most often on the back of the wrist, that can ache, change size or press on a nerve. 
Hand and Wrist · Hand and Upper ExtremityHand and Wrist Osteoarthritis
Wear of the cartilage in the small joints of the fingers and wrist, causing stiffness, swelling, bony knuckle enlargement and pain with gripping. 
Elbow · Hand and Upper ExtremityDistal Biceps Rupture
A tear of the biceps tendon from the bone at the elbow, with a pop, bruising, a bunched-up muscle and lost strength turning the palm up. Time-sensitive. 
Hand and Wrist · Hand and Upper ExtremityScaphoid Fracture
A break in the small wrist bone below the thumb, often mistaken for a sprain, that heals poorly because of its blood supply and leads to arthritis if missed. 
Hand and Wrist · Hand and Upper ExtremityWrist Instability
A torn ligament between the small bones of the wrist, most often the scapholunate ligament, that lets the bones shift out of alignment and wear the joint. Hand and Wrist · Hand and Upper ExtremityHand and Wrist Tendon Injuries
Cuts, ruptures and overuse injuries of the tendons that bend and straighten the fingers and wrist, including mallet finger, jersey finger and tendinitis. Hand and Wrist · Hand and Upper ExtremityHand and Wrist Ligament Sprains
Stretched or torn ligaments in the wrist, thumb and fingers, including skier thumb and jammed fingers. Most heal with splinting; complete tears may need repair. 
