Carpal tunnel syndrome (CTS), or median neuropathy at the wrist, is a medical condition in which the median nerve is compressed at the wrist, leading to paresthesias, numbness and muscle weakness in the hand. The diagnosis of CTS is often misapplied to patients who have activity-related arm pain.
Most cases of CTS are idiopathic (without known cause), genetic factors determine most of the risk, and the role of arm use and other environmental factors is disputed.
Night symptoms and waking at night–the hallmark of this illness–can be managed effectively with night-time wrist splinting in most patients. The role of medications, including corticosteroid injection into the carpal canal, is unclear. Surgery to cut the transverse carpal ligament is effective at relieving symptoms and preventing ongoing nerve damage, but established nerve dysfunction in the form of static (constant) numbness, atrophy, or weakness are usually permanent and do not respond predictably to surgery.
Although the condition was first noted in medical literature in the early 20th century, the first use of the term “carpal tunnel syndrome” was in 1939. The pathology was identified by physician Dr. George S. Phalen of the Cleveland Clinic after working with a group of patients in the 1950s and 1960s. CTS became widely known among the general public in the 1990s because of the rapid expansion of office jobs.
The median nerve passes through the carpal tunnel, a canal in the wrist that is surrounded by bone on three sides, and a transverse carpal ligament on the fourth. Nine tendons—the flexor tendons of the hand—pass through this canal. The median nerve can be compressed by a decrease in the size of the canal, an increase in the size of the contents (such as the swelling of lubrication tissue around the flexor tendons), or both. Simply bending the wrist at 90 degrees will decrease the size of the canal.
Compression of the median nerve as it runs deep to the TCL causes wasting of the thenar eminence, weakness of the flexor pollicis brevis, adductor pollicis, opponens pollicis, abductor pollicis brevis, as well as sensory loss in the distribution of the median nerve distal to the transverse carpal ligament, sparing the superficial sensory branch given that its branch point is normally proximal to the TCL and travels superficially thus avoiding compression.
Many people that have carpal tunnel syndrome have gradually increasing symptoms over time. The first symptoms of CTS may appear when sleeping and typically include numbness and paresthesia (a burning and tingling sensation) in the thumb, index, and middle fingers, although some patients may experience symptoms in the palm as well. These symptoms appear at night because we tend to bend our wrists when we sleep, which further compresses the carpal tunnel.
Patients may note that they “drop things”. It is unclear if carpal tunnel syndrome creates problems holding things, but it does increase sweating, which decreases friction between an object and the skin.
In early stages of CTS individuals often mistakenly blame the tingling and numbness on restricted blood circulation. They may also be at ease and accepting of the symptoms and believe their hands are simply “falling asleep”. In chronic cases, there may be wasting of the thenar muscles (the body of muscles which are connected to the thumb), weakness of palmar abduction of the thumb (difficulty bringing the thumb away from the hand).
Unless numbness or paresthesia are among the predominant symptoms, it is unlikely the symptoms are primarily caused by carpal tunnel syndrome. In effect, pain of any type, location, or severity with the absence of significant numbness or paresthesia is not likely to fall under this diagnosis.
Most cases of CTS are idiopathic. CTS is sometimes associated with trauma, pregnancy, multiple myeloma, amyloid, rhematoid arthritis, acromegaly, mucopolysaccharidoses, or hypothyroidism.
The most important risk factors for carpal tunnel syndrome are structural and biological rather than environmental or activity-related. The strongest risk factor is genetic predisposition.
The international debate regarding the relationship between CTS and repetitive motion and work is ongoing. The Occupational Safety and Health Administration (OSHA) has adopted rules and regulations regarding cumulative trauma disorders. Occupational risk factors of repetitive tasks, force, posture, and vibration have been cited. However, the American Society for Surgery of the Hand (ASSH) has issued a statement that the current literature does not support a causal relationship between specific work activities and the development of diseases such as CTS.
The relationship between work and CTS is controversial; in many locations workers diagnosed with carpal tunnel syndrome are entitled to time off and compensation. Carpal tunnel syndrome results in billions of dollars of workers compensation claims every year.
Some speculate that carpal tunnel syndrome is provoked by repetitive grasping and manipulating activities, and that the exposure can be cumulative. It has also been stated that symptoms are commonly exacerbated by forceful and repetitive use of the hand and wrists in industrial occupations, but it is unclear if this refers to pain (which may not be due to carpal tunnel syndrome) or the more typical numbness symptoms.
A review of available scientific data by the National Institute for Occupational Safety and Health (NIOSH) indicated that job tasks that involve highly repetitive manual acts or specific wrist postures were associated with incidents of CTS, but causation was not established, and the distinction from work related arm pains that are not carpal tunnel syndrome was not clear. It has been proposed that repetitive use of the arm can affect the biomechanics of the upper limb or cause damage to tissues. It has also been proposed that postural and spinal assessment along with ergonomic assessments should be included in the overall determination of the condition. While addressing these factors has been found to improve comfort in some studies, there is no evidence that they affect the natural history of carpal tunnel syndrome.
Studies have related activity-related upper extremity pain with psychological and social factors, but most such pains are nonspecific but commonly mislabeled as carpal tunnel syndrome. Psychological distress correlates with increased pain at work, as do other psychosocial stressors such as job demands, poor support from colleagues, and work dissatisfaction.
As mentioned elsewhere on this page, carpal tunnel is characterized by numbness, not pain. Therefore, any associations between stress and carpal tunnel syndrome are debatable.
- Fractures of one of the arm bones, particularly a Colles’ fracture.
- Dislocation of one of the carpal bones of the wrist.
- Strong blunt trauma to the wrist or lower forearm, incurred for example by using arm extremity to cushion a fall or protecting oneself from falling heavy objects.
- Hematoma forming inside the wrist, because of internal hemorrhaging.
- Deformities from abnormal healing of old bone fractures.
Non-traumatic causes generally happen over a period of time, and are not triggered by one certain event. Many of these factors are manifestations of physiologic aging. 
- Rheumatoid arthritis and other diseases that cause inflammation of the flexor tendons can create median nerve compression at the carpal tunnel.
- With pregnancy and hypothyroidism, fluid is retained in tissues, which swells the tenosynovium.
- Acromegaly, a disorder of growth hormones, compresses the nerve by the abnormal growth of bones around the hand and wrist.
- Tumors (usually benign), such as a ganglion or a lipoma, can protrude into the carpal tunnel, reducing the amount of space. This is exceedingly rare (less than 1%).
- Obesity also increases the risk of CTS with individuals who are classified as obese (BMI > 29) 2.5 times more likely than slender individuals (BMI < 20) to be diagnosed with CTS. 
- Double crush syndrome is a speculative and debated theory which posulates that when there is compression or irritation of nerve branches contributing to the median nerve in the neck or anywhere above the wrist, this then increases the sensitivity of the nerve to compression in the wrist. There is little evidence, however, that this syndrome really exists. 
The reference standard for the diagnosis of carpal tunnel syndrome is electrophysiological testing. Patients with intermittent numbness in the distribution of the median nerve and positive Phalen’s and Durkan’s tests, but normal electrophysiological testing have–at worst–very mild carpal tunnel syndrome. A predominance of pain rather than numbness is unlikely to be due to carpal tunnel syndrome no matter the result of electrophysiological testing.
Clinical assessment by history taking and physical examination can support a diagnosis of CTS.
- Phalen’s maneuver is performed by flexing the wrist gently as far as possible, then holding this position and awaiting symptoms. A positive test is one that results in numbness in the median nerve distribution when holding the wrist in acute flexion position within 60 seconds. The quicker the numbness starts, the more advanced the condition.
- Tinel’s sign, a classic, though less specific test, is a way to detect irritated nerves. Tinel’s is performed by lightly tapping the area over the nerve to elicit a sensation of tingling or “pins and needles” in the nerve distribution.
- Durkan test, carpal compression test, or applying firm pressure of the palm over the nerve for up to 30 seconds to elicit symptoms has also been proposed.
Other conditions may also be misdiagnosed as carpal tunnel syndrome. Thus, if history and physical examination suggest CTS, patients will usually be tested electrodiagnostically with nerve conduction studies and electromyography. The goal of electrodiagnostic testing is to compare the speed of conduction in the median nerve with conduction in other nerves supplying the hand. When the median nerve is compressed, as in CTS, it will conduct more slowly than normal and more slowly than other nerves. There are many electrodiagnostic tests used to make a diagnosis of CTS, but the most sensitive, specific and reliable test is the Combined Sensory Index (also known as Robinson index) 
The role of MRI or ultrasound imaging in the diagnosis of carpal tunnel syndrome is unclear.
Current best evidence suggests that carpal tunnel syndrome is an inherent, structural disease determined primarily by one’s genes.[] Therefore, carpal tunnel syndrome is probably not preventable.
Those who favor activity as a cause of carpal tunnel syndrome speculate that activity-limitation might limit the risk of developing carpal tunnel syndrome, but there is little or no data to support these concepts[] and they stigmatize and demonize arm use in way that risks increasing illness.
Recommendations for preventing carpal tunnel syndrome have poor scientific support[]. Several are listed here:
- Take frequent breaks from repetitive movement such as computer keyboard usage or use of browser based games that encourage the user for excessive finger movement. Free software programs such as Workrave and Xwrits are available to remind users to take breaks and stretch their wrists.
- Reduce your force and relax your grip. Most people use more force than needed to perform many tasks involving the hands. If your work involves a cash register, for instance, hit the keys softly. For prolonged handwriting, use a big pen with an oversized, soft grip adapter and free-flowing ink. This way you won’t have to grip the pen tightly or press as hard on the paper.
- Take frequent breaks. Every 15 to 20 minutes give your hands and wrists a break by gently stretching and bending them. Alternate tasks when possible. If you use equipment that vibrates or that requires you to exert a great amount of force, taking breaks is even more important.
- Watch your form. Avoid bending your wrist all the way up or down. A relaxed middle position is best. If you use a keyboard, keep it at elbow height or slightly lower.
- Improve your posture. Incorrect posture can cause your shoulders to roll forward. When your shoulders are in this position, your neck and shoulder muscles are shortened, compressing nerves in your neck. This can affect your wrists, fingers and hands.
- Keep your hands warm. You’re more likely to develop hand pain and stiffness if you work in a cold environment. If you can’t control the temperature at work, put on fingerless gloves that keep your hands and wrists warm.
There has been much discussion as to the most effective treatment for CTS. It is important to distinguish palliative treatments (treatments that control symptoms) from disease modifying treatments. The only treatment established to be disease modifying is operative release of the transverse carpal ligament. All other treatments seem palliative at best according to current best evidence.
Some causes of CTS are secondary to other conditions — metabolic disorders such as hypothyroidism, for example. Treatment of the primary disorder often resolves CTS symptoms.
A wrist splint helps limit numbness by limiting wrist flexion. Night splinting helps patients sleep. There is no evidence that wrist splinting is disease modifying.
The importance of wrist braces and splints in the carpal tunnel syndrome therapy is known, but many people are unwilling to use braces. In 1993, The American Academy of Neurology recommend a non-invasive treatment for the CTS at the beginning (except for sensitive or motor deficit or grave report at EMG/ENG): a therapy using splints was indicated for light and moderate pathology. Current recommendations generally don’t suggest immobilizing braces, but instead activity modification and non-steroidal anti-inflammatory drugs as initial therapy, followed by more aggressive options or specialist referral if symptoms do not improve. 
Many health professionals suggest that, for best results, one should wear braces at night and, if possible, during the activity primarily causing stress on the wrists.
Steroid injections can be quite effective for temporary relief from symptoms of CTS for a short time frame while a patient develops a longterm strategy that fits with his/her lifestyle. In certain patients an injection may also be of diagnostic value. This treatment is not appropriate for extended periods, however. In general, medical professionals only prescribe to localized steroid injections until other treatment options can be identified. For most patients, permanent relief requires surgery.
There is little evidence to support physiotherapy or occupational therapy as a disease modifying treatments. They seem to be oriented primarily towards non-specific activity related pain rather than the numbness of carpal tunnel syndrome.
Physiotherapy offers several ways to treat and control carpal tunnel syndrome. This procedure should be directed specifically towards the pattern of pain / symptoms and dysfunction assessed by the therapist. As such, it may include a range of modalities ranging from soft tissue massage, conservative stretches and exercises and techniques to directly mobilize the nerve tissue. It can also include the aforementioned immobilizing braces.
Clinically, sometimes a patient will present with a hand that is very inflamed and swollen with severe symptoms of pain, tingling and numbness and almost a fear of use because of the pain. In these cases a physiotherapist may focus on techniques to reduce the pain and inflammation, and exercises to encourage improved circulation. A comprehensive review of effectiveness of hand therapies in carpal tunnel management demonstrates that there is some valid scientific evidence for a range of therapeutic modalities. For instance, Body Awareness Therapy such as the Feldenkrais method has positive effects in relation to fibromyalgia and chronic pain. Structured exercise programs using these therapies to reduce wrist pain have been developed.
Occupational therapy offers ergonomic suggestions to prevent worsening of the symptoms and occupational therapist facilitates hand functions through functional activities and helps to regain the functions which are necessary for the functional living through remedial adaptive approaches.
Any forceful and repetitive use of the hands and wrists can cause upper extremity pain. More frequent rest can be useful if it can be orchestrated into one’s schedule. It has been shown that taking multiple mini breaks during the stressful activity is more effective than taking occasional long breaks. There are computer applications that aid users in taking breaks. All of these applications have recommended defaults, following the most effective average break configuration, which is a 30 sec. pause every 3 to 5 minutes (the more severe the pain, the more often one should take this break). There are also programs that automatically click the mouse. Before investing in these types of programs, it’s best to consult with a doctor and research whether computer use is causing or contributing to the symptoms, as well as getting a formal diagnosis.
More pro-active ways to reducing the stress on the wrists which will alleviate wrist pain and strain involve adopting a more ergonomic work and life environment. Switching from a QWERTY computer keyboard layout to a more optimised ergonomic layout such as Dvorak was commonly cited as beneficial in early CTS studies, however some meta-analyses of these studies claim that the evidence that they present is limited.
It is also important that one’s body be aligned properly with the keyboard. This is most easily accomplished by bending ones elbows to a 90 degree angle and making sure the keyboard is at the same height as the elbows. Also it is important not to put physical stress on the wrists by hanging the wrist on the edge of a desk, or exposing the wrists to strong vibrations (e.g. manual lawn mowing). Position the computer monitor directly in front of your seat, so the neck is not twisted to either side when viewing the screen.
Exercises that relax and strengthen the muscles of the upper back can reduce the risk of a double crush of the median nerve.
Massage is one of the most overlooked methods for treatment of the symptoms of CTS. The use of myofascial release and active stretch release can erase the pain, numbness, tingling and burning in minutes. Then following up with the stretches and exercises afore mentioned will lengthen the relief attained by these release techniques.
Using an over-the-counter anti-inflammatory such as aspirin, ibuprofen or naproxen can be effective as well for controlling symptoms. Pain relievers like paracetamol will only mask the pain, and only an anti-inflammatory will affect inflammation. Non-steroidal anti-inflammatory medications theoretically can treat the root swelling and thus the source of the problem. Oral steroids (prednisone) do the same, but are generally not used for this purpose because of significant side effects. The most common complications associated with long-term use of anti-inflammatory medications are gastrointestinal irritation and bleeding. Also, some anti-inflammatory medications have been linked to heart complications. Use of anti-inflammatory medication for chronic, long-term pain should be done with doctor supervision.
A more aggressive pharmaceutical option is an injection of cortisone, to reduce swelling and nerve pressure within the carpal tunnel. Methylcobalamin (vitamin B12) has been helpful in some cases of CTS. 
Release of the transverse carpal ligament (“carpal tunnel release” surgery) is recommended when there is static (everpresent, not just intermittent numbness), weakness of palmar abduction, or atrophy, and when night-splinting no longer controls intermittent symptoms. In general, milder cases can be controlled for months to years, but severe cases are unrelenting symptomatically and are likely to result in surgical treatment.
In carpal tunnel release surgery, the goal is to divide the transverse carpal ligament in two. This is a wide ligament that runs across the hand, from the base of the thumb to the base of the fifth finger. It also forms the top of the carpal tunnel, and when the surgeon cuts across it (i.e., in a line with the middle finger) it no longer presses down on the nerves inside, relieving the pressure.
There are several carpal tunnel release surgery variations: each surgeon has differences of preference based on their personal beliefs and experience. All techniques have several things in common, involving brief outpatient procedures; palm or wrist incision(s); and cutting of the transverse carpal ligament.
The two major types of surgery are open-hand surgery and endoscopic surgery. Most surgeons perform open surgery, widely considered to be the gold standard (test). However, many surgeons are now performing endoscopic techniques. Open surgery involves a small incision somewhere on the palm about an inch or two in length. Through this the ligament can be directly visualized and divided with relative safety. Endoscopic techniques involve one or two smaller incisions (less than half inch each) through which instrumentation is introduced including probes, knives and the scope used to visualize the operative field.
All of the surgical options typically have relatively rapid recovery profiles (days to weeks depending on the activity and technique), and all usually leave a cosmetically insignificant scar.
Surgery to correct carpal tunnel syndrome has high success rate, especially using endoscopic surgery techniques. Up to 90% of patients were able to return to their same jobs after surgery.  In general, endoscopic techniques are as effective as traditional open carpal surgeries, though the faster recovery time typically noted in endoscopic procedures may be offset by higher complication rates. Success is greatest in patients with the most typical symptoms. The most common cause of failure is incorrect diagnosis, and it should be noted that this surgery will only fix carpal tunnel syndrome, and will not relieve symptoms with alternative causes. Recurrence is rare, and apparent recurrence usually results from a misdiagnosis of another problem. Complications can occur, but serious ones are infrequent to rare.
Carpal tunnel surgery is usually performed by a hand surgeon, orthopaedic or plastic surgeon; some neurosurgeons and general surgeons also perform the procedure.
Most people who find relief of their carpel tunnel symptoms with conservative or surgical management find minimal residual or “nerve damage”. Long-term chronic carpal tunnel syndrome (typically seen in the elderly) can result in permanent “nerve damage”, i.e. symptoms of numbness, muscle wasting and weakness.
While outcomes are generally good, certain factors can contribute to poorer results that have little to do with nerves, anatomy, or surgery type. One study showed that mental status parameters, alcohol use, yield much poorer overall results of treatment.
Many mild carpal tunnel syndrome sufferers either change their hand use pattern or posture at work or find a conservative, non-surgical treatment that allows them to return to full activity without hand numbness or pain, and without sleep disruption. Other people end up prioritizing their activities and possibly avoiding certain hand activities so that they can minimize pain and perform the essential tasks.
Changing jobs is also commonly done to avoid continued repetitive stress tasks. Others find success by adjusting their repetitive movements, the frequency with which they do the movements, and the amount of time they rest between periods of performing the movements.
While recurrence after surgery is a possibility, true recurrences are uncommon to rare. Such recurrence can also be non-CTS hand pain. Such hand pain may have existed prior to the surgery, which is one reason it is very important to get a proper diagnosis.
Keywords: homeopathy, homeopathic, treatment, cure, remedy, remedies, medicine
Homeopathy treats the person as a whole. It means that homeopathic treatment focuses on the patient as a person, as well as his pathological condition. The homeopathic medicines are selected after a full individualizing examination and case-analysis, which includes the medical history of the patient, physical and mental constitution, family history, presenting symptoms, underlying pathology, possible causative factors etc. A miasmatic tendency (predisposition/susceptibility) is also often taken into account for the treatment of chronic conditions. A homeopathy doctor tries to treat more than just the presenting symptoms. The focus is usually on what caused the disease condition? Why ‘this patient’ is sick ‘this way’. The disease diagnosis is important but in homeopathy, the cause of disease is not just probed to the level of bacteria and viruses. Other factors like mental, emotional and physical stress that could predispose a person to illness are also looked for. No a days, even modern medicine also considers a large number of diseases as psychosomatic. The correct homeopathy remedy tries to correct this disease predisposition. The focus is not on curing the disease but to cure the person who is sick, to restore the health. If a disease pathology is not very advanced, homeopathy remedies do give a hope for cure but even in incurable cases, the quality of life can be greatly improved with homeopathic medicines.
The homeopathic remedies (medicines) given below indicate the therapeutic affinity but this is not a complete and definite guide to the homeopathy treatment of this condition. The symptoms listed against each homeopathic remedy may not be directly related to this disease because in homeopathy general symptoms and constitutional indications are also taken into account for selecting a remedy. To study any of the following remedies in more detail, please visit the Materia Medica section at Hpathy.
None of these medicines should be taken without professional advice and guidance.
Homeopathy Remedies for Carpal tunnel syndrome :
Arn., bell-p., brach., calc-f., calc-p., caust., guai., hyper., ruta., rhus-t., viol-o.
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