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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. 
Hand and Wrist · Hand and Upper ExtremityNerve Injuries of the Hand and Arm
Cuts, crush injuries and stretch injuries to the nerves of the hand and arm, causing numbness and weakness. Timing matters because nerves recover slowly and only when repaired early. 
Hand and Wrist · Hand and Upper ExtremityFinger and Thumb Dislocations
A finger or thumb joint knocked out of place, usually by a ball or a fall. Reduced promptly, then protected so the ligaments heal and the joint stays stable. 
Hand and Wrist · Hand and Upper ExtremityTFCC Tear
A tear of the cartilage and ligament complex on the small-finger side of the wrist, causing pain with twisting and weight bearing. From a fall or from years of load. 
Hand and Wrist · Hand and Upper ExtremityCongenital Hand Conditions
Hand differences present from birth, from trigger thumb and extra or joined fingers to underdeveloped thumbs. Evaluated early, treated when it improves function. Elbow · Hand and Upper ExtremityComplex Upper Extremity Trauma
Severe injuries of the hand, wrist, forearm and elbow: open fractures, crush and saw injuries, combined bone, tendon and nerve damage, and injuries that need reconstruction. 
