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| Arthritis of the wrist is a common cause of wrist pain. The pain is usually localized in the wrist, is described as an "aching pain", is worsened by movement of the wrist, and is associated with swelling and decreased range of motion of the wrist limited by pain. Sometimes there is a decrease in grip strength. Because osteoarthritis (degenerative) is so common, it is the major cause of wrist pain. But there are other types of arthritis which may lead to wrist pain including trauma to the writis, rheumatoic arthritis, psoriasis with arthritis, collagen vascular diseases such as Lupus or scleroderma, infection, etc. Usually collagen vascular diseases produce arthritis seen in several joints at the same time. Treatment of wrist arthritis is with analgesics, possibly with topical analgesics (compounded) or over the counter topical analgesics (menthols), and injection of the wrist occasionally with local anesthetics and steroids. Carpal tunnel syndrome is a commonly occuring pain in the wrist, especially at the base of the thumb and the 1st three fingers. There may be numbness and "paresthesias" (electric like shock sensations), and weakness in the hand, wrist, and first 3 fingers. Occasionally in severe cases, the pain will radiate to the forearm. The syndrome is often diagnosed by a Phalen's test: the back of the hands are placed against each other with the fingers on each hand pointing downwards. If there is entrapment of the median nerve (the cause of carpal tunnel syndrome), then the Phalen's test will reproduce the usual pain in the hands and fingers. Often, an EMG (electromyelogram) will be used to make the diagnosis of carpal tunnel syndrome. The syndrome is caused by repetitive wrist motions, especially when the wrist is very extended due to poor positioning during typing, computer keyboarding, or manual labor. Carpal tunnel syndrome is often confused with cervical radiculopathy (pain referred to the wrist from the neck). Carpal tunnel syndrome however is not associated with any reflex or motor changes on physical examination. The syndrome is also confused with diabetic neuropathy, however the latter involves the entire hand rather than the median nerve distribution of pain described above. Mild carpal tunnel syndrome is treated by wearing splints to prevent hyperextension or hyperflexion of the wrist, avoidance of repetitive activities such as keyboarding or hammering, and injections of the carpal tunnel with steroids. A study published in the Feb 2005 edition of Arthritis and Rheumatism found in patients without significant weakness or muscle wasting in the hand, patients who had injection of steroids in the carpal tunnel fared as well as those who had surgery at points in time 3 months and 12 months later. Occasionally surgery including both open and endoscopic techniques have been used successfully to treat the pain of carpal tunnel syndrome, especially when weakness is starting to occur. Left untreated, the syndrome may cause muscle wasting in the hands, loss of grip strength, and sensory losses all of which may become permanent. de Quervain's Tenosynovitis is a condition due to inflammation of the tendons of the thumb with resultant pain on the border of the wrist and thumb. When inflammation results in severe thickening of the tendon sheath, the person may develop arthritis and a "trigger thumb" with a locking of the thumb and inability to move the thumb away from the hand. The pain from this condition may be severe on the outside of the wrist and thumb, and is made worse by repetitive activities that include grasping of the hands or twisting of the wrist such as using a wrench, scooping ice cream, shaking hands repeatedly such as politicians, etc. The pain is constant and is made worse with pinching activities of the thumb or movement of the wrist to the opposite side of the thumb. Grasping items becomes increasingly more difficult over time (such as holding a coffee cup or turning a screwdriver). The Finkelstein test involves placing the thumb under the fingers which are curled over the thumb. The test is positive if severe pain is produced in the thumb and wrist area when the wrist is rotated away from the thumb side. Other diagnoses which may be confused with this condition include entrapment of the radial nerve at the wrist (Cheiralgia paresthetica, cervical radiculopathy from the C6-7 spine, and entrapment of a cutaneous nerve of the thumb. Treatment is with antiinflammatory drugs, injections, and rare surgery. Also a hand splint which immobilizes the thumb can be helpful. Trigger thumb is the term used to describe a pain in the palm of the hand at the base of the thumb associated with a "catching" or "locking" of the thumb. Usually the syndrome is due to inflammation of a tendon as it passes over bones. The cause is repetitive motion (such as pinching, shaking hands, thumb movements eg. piano lessons, videogames, etc) or pressure chronically over the tendon (flexor pollicis longus) from the metacarpal bones of the hand. In many cases, the triggering or locking is due to nodules (inflammation enlargement points) of the tendons as they pass through sheaths. The nodules do not move freely through the tendon sheaths. The pain is made worse by pinching with the thumb and first finger with tenderness over the palmar part of the base of the thumb. Occasionally there is a creaking sound or sensation with flexion and extension of the thumb. Other problems which may present similarly are arthritis of the metocarpo-carpal joint of the thumb and gout of the first metacarpal joint. Treatment is with NSAIDS or COX2 inhibitors, heat, gentle range of motion, and occasionally injection directly into the tendon with steroids. Risks of this injection include tendon rupture, bleeding, infection, increase in pain in 25%. Trigger finger is a painful condition involving the fingers which tend to lock in the partially flexed position due to flexor tendon inflammation and nodule formation similar to trigger thumb. The nodules on the tendon moving back and forth through the sheath surrounding and lubricating the tendon get stuck much as a knotted rope gets stuck moving through a pulley. Tight gripping of hammers or other equipment or steering wheels may cause trigger finger. Often patients awaken from sleep with a locked finger. Pain from trigger finger is usually located near the junction of the palm of the hand with the finger with the maximum tenderness at the same location. The condition may be confused with arthritis of the hand. Treatment is with NSAIDS and range of motion physical therapy. Trigger finger injections may be both diagnostic and therapeutic. Rarely surgery will be required. Ganglion cysts of the hand and wrists are usually not severely painful but the skin over the cyst is frequently bumped against things causing some pain. Most of these cysts are located over the back of the hand (dorsum) at the wrist joint. They form from tendons or from the joints of the hand as a herniation of the synovial tissue which lubricates the joints or tendons. The tissue becomes irritated and produces increased amounts of joint fluid. A one way valve mechanisms may prevent the cyst from draining and therefore the cyst gradually and slowly progressively enlarges. Extreme flexion or extension of the wrist causes increased pain as does pressure placed on the cyst. The ganglion is smooth and not associated with multiple nodules. If conservative treatments such as NSAIDS, physical therapy, limitation of extreme motion, and a night time splint do not resolve the symptoms, injections of steroids and drainage of the cyst are used. If these measures fail, then surgery is sometimes indicated. During surgery (which is often done with a special type of anesthesia called a Bier block), the ganglion is explored at its roots all the way into the joint or tendon. Dupuytren's Contracture is a commonly encountered problem affecting the ring and little finger in males, usually over age 40. It results in increasing progressive flexion of these fingers towards the palm and pain in the palm of the hand. The condition is due to progressive scar tissue of the palmar fascia which is a thick tissue over the muscles and bones in the palm of the hand. The scar tissue develops as a result of genetics (Swedish, Norwegian, Danish, etc), trauma to the palm, diabetes or alcoholism. Usually the condition is painful only during the initial stages and as it progresses, the pain becomes less and less as the flexion deformity of the fingers becomes progressively worse. Usually tight fibrous bands in the palm may be felt late in the course of the condition whereas early in the condition, only nodules may be felt. Usually the patient will seek care not due to pain but due to inability to perform daily tasks such as putting on a glove, buckling a belt, typing, etc. Treatment of the contractures involve injections of steroids into the fibrosis of the palm, injections of agents to break up the scar tissue, and physical therapy. Usually surgery is ultimately performed. Recovery is usually complete from surgery. Peripheral neuropathy is damage to the peripheral nerves resulting in the production ofburning numbing of the hands and/or feet. The nerve damage comes from any of a variety of diverse causes, but all with the same end result. The most common cause is diabetes mellitus which results in a burning pain in the distribution of a glove on the hand and usually involves the feet also in a distribution of the socks. Often patients suffering with diabetes will experience severe burning pain at night. Other causes of peripheral neuropathy are compression or entrapment, direct trauma, penetrating injuries, contusions, fracture or dislocated bones; pressure involving the superficial nerves (ulna, radial, or peroneal) which can result from prolonged use of crutches or staying in one position for too long, or from a tumor; intraneural hemorrhage; exposure to cold or radiation or, rarely, certain medicines or toxic substances such as lead poisoning; and vascular or collagen disorders such as atherosclerosis, systemic lupus erythematosus, scleroderma, sarcoidosis, rheumatoid arthritis, or polyarteritis nodosa. Treatment involves Cymbalta, removal of sources of compression, physical therapy, anticonvulsant drugs, and rarely decompressive surgery. If there is an offending toxin such as lead, occasionally chelation therapy may be appropriate. Carpal tunnel syndrome is a form of peripheral neuropathy. Reflex sympathetic dystrophy, also known as RSD or CRPS (complex regional pain syndrome) is an extremely painful and debilitating disorder, usually induced by surgery or trauma. Typically, there is pain out of proportion to the original injury or surgery, swelling of the hand, hypersensitivity to touch, shiny skin, "white hands: or other alternating color changes from white to red to blue, and decreased motion of the hand with guarding due to extreme pain. There may be xray evidence of bone loss in the affected area, and there is often a temperature difference between the RSD hand and the normal hand. The pain may go on for years and may result in complete loss of the use of the hand or arm. In 5% of patients, the condition will spread to another extremity. Treatment is best initiated early after recognition of the condition and should include mobilization physical therapy, stellate ganglion or thoracic sympathetic blockade, peripheral nerve blockade, and occasionally, spinal cord stimulator implants. |
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