Unit Statistical Report. Data, including losses and payroll by classification, resulting from every workers' compensation insurance policy written in California is reported to the WCIRB in a Unit Statistical Report (USR).
Carpal tunnel syndrome can cause left arm weakness. Tendinitis can cause left arm weakness. Left arm weakness can be an early sign of a heart attack. A sprained elbow can be the cause of left arm weakness. Typing on a keyboard can be hard on the wrists, possibly aggravating carpal tunnel problems. A pinched nerve in the neck may cause left arm weakness.
For many people, arthritis of the elbow can cause pain not only when they bend their elbow, but also when they straighten it, such as to carry a briefcase. The most common cause of arthritis of the elbow is rheumatoid arthritis. Osteoarthritis and injuries can also cause arthritis in the elbow joint.Rheumatoid arthritis is a disease of the joint linings, or synovia. As the joint lining swells, the joint space narrows.The disease gradually destroys the bones and soft tissues.ymptoms of elbow arthritis vary and can include: 1  Pain. 2  In the early stages of rheumatoid arthritis, pain may be primarily on the outer side of the joint. 3  Pain generally gets worse as you turn (rotate) your forearm. 4  The pain of osteoarthritis may get worse as you extend your arm.