Tendonitis is a painful condition involving inflammation of tendons. Tendonitis is almost always caused by repetitive movements of a tendon, such as when typing on a keyboard, playing guitar, golfing, baseball pitching, running or tennis. Tendonitis can develop anywhere including the wrists.
Tendons connect muscles to bone, whereas ligaments connect bone to bone, in a joint. Tendons are constructed of connective tissue (collagen, elastin) where as muscles are constructed of actin and myosin (specialized protein strands).
Tendons, although able to increase in length under a load, do not have contractile properties like muscles have.
Tendons also do not have a very good blood supply (vascularization) compared to muscles. Tendons have very strong attachments to bone, so strong that it may pull of a section of bone instead of rupturing when subject to trauma.
Some forms of tendonits involve the tendon actually pulling off the top layer of cells (periosteum) of a bone, resulting in an inflammatory response.
Carpal Tunnel Syndrome a neuropathy or nerve disorder that often strikes people whose occupation requires frequent hand usage such as having a job that requires you to be at a work station. Frequent repetitive motions such as typing and use of a mouse accompanied by poor ergonomics can lead to this condition.
Carpal Tunnel Syndrome (CTS) is a painful and often debilitating disorder affecting the hands and wrists. The symptoms of carpal tunnel syndrome include numbness and tingling in the hands, primarily the thumb and thumb pad, index, middle, and inner half of the ring fingers.
Those with carpal tunnel syndrome report of increased symptoms at night, making sleep difficult. Advanced stages of carpal tunnel syndrome result in decreased fine dexterity movements of the fingers, such as buttoning a shirt, and grasping an object. The thenar pad which is the muscle in the palm near the thumb may undergo muscle atrophy.
Carpal Tunnel Syndrome occurs when the median nerve, one of the major nerves that supplies the upper extremity, is compressed in the carpal tunnel. This is a narrow passageway in the wrist formed by the carpal bones and the transverse carpal ligament.
Carpal tunnel syndrome is often the result of a combination of factors that press on the median nerve and the tendons in the carpal tunnel. Carpal tunnel syndrome can also be due to a congenital (born with) predisposition where the carpal tunnel is smaller in some people than in others.
Some times the cause of pain earlier diagnosed or thought as carpal tunnel is actually related to some other area that the median nerve follows.
Other areas of median nerve root entraption include a ligament near the elbow, called the Ligament of Struthers. Also the area near the shoulder called the thoracic outlet and also the cervical spine of neck can all attribute to symptoms closely resembling carpal tunnel syndrome