Cubital Tunnel Syndrome…. Ever heard of it?

Your cubital tunnel is the groove on the inside of your elbow, also called the “funny bone.” The funny part about the funny bone is that it is not actually a bone but rather a nerve, called the ulnar nerve. Your ulnar nerve begins in your neck and passes through the cubital tunnel on its way to your hand.

When you flex your elbow, the ulnar nerve is required to both stretch and slide through your cubital tunnel. If your ulnar nerve is “stuck” in the tunnel and does not glide when you flex your elbow, this leads to traction and irritation of the nerve. This is called “cubital tunnel syndrome.” The nerve may also be irritated from direct compression, like leaning your elbow on the edge of a desk or from arthritic spurs. Cubital tunnel syndrome is the second most common nerve compression problem in the arm, behind carpal tunnel syndrome.

Irritation of the ulnar nerve in the cubital tunnel causes pain, numbness or tingling that radiates from your elbow into your fourth and fifth fingers. Your symptoms can vary from a vague increased sensitivity to pain. The symptoms are common at night and are often progressive over time. In severe cases, you may begin to lose grip strength and fine muscle control.

Cubital tunnel syndrome is commonly seen in baseball, tennis and racquetball players. Workers who keep their elbows flexed such as holding a tool or telephone, or those who press the ulnar nerve against a hard surface like a desk, are at an increased risk for this disorder. Cubital tunnel syndrome affects men three to eight times as often as women and is more common in those who have diabetes or are overweight.

You should try to avoid prolonged elbow flexion or direct pressure over your elbow. Our office may prescribe a nighttime elbow splint that limits flexion.

Is Surgery Always Required?

Carpal tunnel syndrome (CTS) is the most common peripheral entrapment neuropathy—that is, it’s the most common place to trap a nerve in the extremities (arms or legs). CTS affects 6-11% of adults in the general population, and it occurs in women more often than men. The cause is often difficult to determine but the most common reasons can include trauma, repetitive maneuvers, certain diseases, pregnancy, being over the age of 50, and obesity.

So, is surgery the only answer? The short answer is NO! In fact, in a recent randomized clinical trial published in the Journal of Pain, researchers observed similar improvements in function when they compared the outcomes of patients who underwent surgery vs. those who received manual therapies (such as those performed several times a day at chiropractic clinics around the world) at both six months and one year later. The improvements included increased strength, function, and decreased hypersensitivity in both the surgical and non-surgical groups. Interestingly, the manual therapy group did BETTER at the one and three month assessments when compared with the surgical group (again, with no difference at six and twelve months)!

The median nerve, the culprit behind CTS, starts in the neck and travels down through the shoulder, elbow, forearm, and finally through the carpal tunnel, which is made up of eight small carpal bones that form the arch of the bridge. Entrapment of the median nerve occurs when the normally tight quarters within the carpal tunnel combine with the inflamed nine sheathed muscle tendons that push the nerve into the floor of the tunnel (a ligament), which results in CTS! The goal of therapy—both surgical and manual therapy—is to reduce the pressure within the tunnel and free up the compression of the median nerve.

Manual therapies focus on joint mobilization and manipulation to reduce joint fixations, muscle release techniques in the forearm and hand, stretching techniques, and at-home exercises that emphasize a similar stretch, the night brace, and management of any underlying contributing factor. These “underlying factors” might include diabetes, hypothyroid, taking birth control pills, weight management, and inflammatory arthritis.

 

CTS SUrgery

Feels just like Carpal Tunnel but isn’t Carpal Tunnel……

Your Median Nerve begins in your neck and travels down your arm on its way to your hand. This nerve is responsible for sensation on the palm side of your first 3 ½ fingers and also controls some of the muscles that flex your fingers. The median nerve can sometimes become entrapped near your elbow as it travels through a muscle called the “pronator teres”. Compression of the median nerve by the pronator muscle is called “Pronator Syndrome.”

Pronator syndrome is often brought on by prolonged or repeated wrist and finger movements, i.e., gripping with the palm down. Carpenters, mechanics, assembly line workers, tennis players, rowers, and weight lifters are predisposed to this problem. The condition is more common in people with excessively developed forearm muscles and is also more common in your dominant arm. Pronator syndrome most often affects adults age 45-60 and females are affected about four times more frequently than males. People who suffer from diabetes, thyroid disease, and alcoholism have an increased risk for developing pronator syndrome.

Pronator syndrome produces symptoms very similar to a more common cause of median nerve compression called “carpal tunnel syndrome”. Symptoms of pronator syndrome include numbness, tingling, or discomfort on the palm side of your thumb, index, middle finger, and half of your ring finger. The discomfort often begins near the elbow and radiates toward your hand. Your symptoms are likely aggravated by gripping activities, especially those that involve rotation of the forearm, like turning a doorknob or a screwdriver. Unlike carpal tunnel syndrome, pronator syndrome symptoms are not generally present at night. You may sometimes feel as though your hands are clumsy. In more severe cases, hand weakness can develop.

To help resolve your condition, you should avoid activities that involve repetitive hand and forearm movements. Perhaps the most important aspect of your treatment plan is to avoid repetitive forceful gripping. You may apply ice packs or ice massage directly over the pronator teres muscle for ten minutes at a time or as directed by our office. In some cases, an elbow splint may be used to limit forearm movements. If left untreated, pronator syndrome can result in permanent nerve damage. Fortunately, our office has several treatment options available to help resolve your symptoms.

CTS at Night.

For those who have carpal tunnel syndrome (CTS), it’s no surprise that CTS is frequently most expressive during the night, often to the point of interrupting sleep and/or making it difficult to fall back to sleep. So why is that?

The primary reason for nighttime CTS symptoms has to do with the wrist, as it is very difficult to sleep with the wrist held in its “ideal” or least irritating position. In fact, most people favor “curling” the back of the hand under the chin or bending the hand/wrist backwards under the head. When the wrist is bent in either direction, it can increase the pressure inside the wrist, which can generate the various symptoms associated with CTS.

One study evaluated the pressure inside the carpal tunnel while participants slowly moved their wrists. The researchers found many movements didn’t need to exceed 20 degrees before the pressure increased enough within the carpal tunnel to generate symptoms.

Because it doesn’t take a lot of movement to build up excessive pressure in the wrists of those with CTS, many doctors recommend the use of a “cock-up splint” for the non-surgical treatment of CTS in order to help keep the wrist in a neutral position.

Wrist posture is also an important factor during the day. One study looked at typing on a tablet PC, which allowed people to work in non-traditional settings. As screen size reduced, the posture required to type became more limited and accelerated the usual rate of pain onset in the neck, elbows, and wrists.

This study also looked at three different positions used when working on touch-screen devices: desk, lap, and bed. The healthy subjects completed six, 60-minute typing sessions using three virtual keyboard designs: standard, wide, and split. The researchers monitored the position of the wrist, elbow, and neck while the participants typed and followed up each session with questionnaires designed to measure discomfort.

The research team reported that typing in bed required greater wrist extension but resulted in a more natural elbow position than typing at a desk. The angled split keyboard significantly reduced the wrist deviation vs. the standard or wide keyboard designs. All three regions—the neck, elbow, and wrist—exhibited more movements (13% to 38%) towards the end of the one hour sessions, which correlated with a significant increase in pain in every body region investigated. Overall, using a wider keyboard while sitting at a desk was the most tolerable position among study participants.

 

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Do you have Carpal Tunnel Syndrome?

Carpal Tunnel Syndrome is VERY common. If fact, it affects 3-6% of the general population, and up to 50% of those afflicted have it in both hands! So what makes it so common? Here are several reasons:

1) ANATOMY: The wrist is made up of eight small “carpal” bones that allow the wrist to bend and twist in many different positions. If you were to look at the wrist “head on,” you’d notice it is shaped like a tunnel where the eight little carpal bones make up the “roof” and the transverse carpal ligament is the “floor.” You’ll also notice nine tendons and their sheaths that pass through the carpal tunnel and attach the forearm muscles to the fingers on the palm side of the arm, blood vessels, and the median nerve. When there is less available space within the carpal tunnel (due to inflamed tendons, for example), the added pressure can compress the median nerve and result in numbness, tingling, and weakness, mostly into the second to fourth fingers.

2) JOBS: People with occupations that require fast, repetitive movements and/or a firm grip with little rest have a higher likelihood of developing CTS.

3) GENDER: Women have a greater risk of developing CTS than men due to smaller wrists and hormonal changes that may result in swelling in the wrist.

4) AGE: Individuals over age 50 have a greater risk of developing CTS, especially females.

5) GENERAL HEALTH ISSUES: There are a host of conditions that can cause and/or aggravate CTS. Some of these include rheumatoid arthritis, diabetes, osteoarthritis, low thyroid function, and space-occupying issues like a ganglionic cyst inside the tunnel. Certain medications, such as birth control pills, and some forms of chemotherapy can also cause CTS. A pinched nerve in the neck or shoulder can alter median nerve function, which can exacerbate CTS symptoms.

6) TRAUMA: A fall onto an outstretched arm can sprain and/or fracture the wrist. If a fracture occurs, the onset of CTS can be very rapid, and quick realignment of the fracture is very important.

Chiropractic care offers a non-surgical solution to CTS, which includes splinting (primarily at night and when driving but usually less often during the day as we tend to “fight” against the splint), anti-inflammatory measures (ice, nutrients such as ginger, turmeric, bioflavonoids), and manual therapies—manipulation of the fingers, hand, wrist, elbow, shoulder, and neck (as indicated) and muscle release techniques to the forearm are very helpful. There are also effective exercises that patients can do at home that include joint range of motion and muscle stretching techniques.

 

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Why do so many suffer with CTS?

According to the literature, carpal Tunnel Syndrome (CTS) is one of the most prevalent upper extremity complaints. In fact, it IS the most common “compression neuropathy” (of which there are many) and affects 3-6% of adults in the general population. Additionally, CTS can affect BOTH hands in up to 50% of patients with the condition!

The CAUSE of CTS is often unknown and typically comes on gradually, making it difficult to determine a definite cause or specific “date of onset” for CTS.

Symptoms such as numbness, tingling, loss of dexterity, loss of strength (like pinch or grip), and the need to shake the hand or flick the fingers to restore sensation are ALL VERY COMMON CTS SYMPTOMS. The REASON for these symptoms boils down to one thing: The median nerve in the wrist gets pinched! The cause/s can include:

1)  Repetitive motion from either work or hobbies like assembly line work or playing a musical instrument can cause swelling within the carpal tunnel, placing extra pressure on the median nerve as it passes through.

2)  Obesity can contribute to CTS due to extra fluids or fatty deposits that can build up within the carpal tunnel.

3)  Pregnancy: Elevated levels of the hormones estrogen and progesterone can cause the body to retain fluids and increase pressure in the carpal tunnel.

4) Arthritis: Osteoarthritis can lead to CTS (such as when a spur forms inside the tunnel). Rheumatoid arthritis can lead to an autoimmune response and antibodies that end up attacking the cartilage of the joints in the wrist, which can lead to CTS.

5)  Hormone-related conditions: In diabetes mellitus, the blood becomes thicker due to high sugar levels (like syrup) and can’t pass through the small blood vessels, resulting in “neuropathy,” which can make CTS more likely. In hypothyroid, low thyroid function results in “myxedema,” a specific type of swelling that makes CTS more likely to occur.

6)  Trauma: A wrist fracture could cause the carpal tunnel to “collapse” or change in shape resulting in less space for the nerve to travel through.

7)  Mass lesions: A “ganglionic cyst” is a good example. This is where joint fluid leaks out and forms a “bump” on the INSIDE the carpal tunnel, which reduces space and increases pressure in this anatomical structure.

8)  Amyloidosis: This is a rare condition where a protein substance called “amyloid” builds up in any tissue or organ. If this occurs in the wrist, it can “pinch” the median nerve as it passes through.

9)  Sarcoidosis: This is the growth of small collections of inflammatory cells called “granulomas,” which can accumulate in different parts of the body. If it occurs in the wrist, pinching can occur.

10)  Multiple Myeloma: This is a type of cancer that affects the bone marrow, and inflammation in the wrist can occur creating the pressure increase on the median nerve that can lead to CTS.

11)  Leukemia: This too is a type of cancer that involves the white blood cells, and CTS can result from its effects on the tissues in the wrist.

12)  Anatomy: The size and shape of the carpal tunnel is hereditary, and some of us have a smaller tunnel than others. If CTS is present in multiple family members, this “genetic” factor may play a role.

There are other conditions that can “mimic” CTS, but doctors of chiropractic are trained to perform an accurate history and examination so treatment can be directed in the proper manner!

Carpal Tunnel Facts #1

If tingling/numbness primarily affects your thumb, index, third, and ring fingers, it very well could be carpal tunnel syndrome, or CTS. Chances are you’ve probably had this condition for months or even longer but it’s been more of a nuisance than a “major problem” and therefore, you probably haven’t “bothered” having it checked out. Let’s take a look at some “facts” about CTS!

WHAT IS CTS? CTS is basically a pinched nerve (the median nerve) that occurs on the palm side of the wrist that innervates the three middle fingers and the thumb on the palm side. This nerve starts in the neck, runs through the shoulder to enter the arm, and travels down the palm side forearm through the carpal tunnel. The carpal tunnel is made up by eight small bones (called “carpal bones”) that form the roof and walls of the tunnel. The floor of the tunnel is a ligament called the transverse carpal ligament. The median nerve lies immediately on the floor, and deeper inside the tunnel are nine tendons that connect the muscles of our forearm to the fingers, which allow us to make a fist and grip. When swelling occurs inside the tunnel, the nerve is pinched against the floor (ligament) and symptoms occur.

SYMPTOMS OF CTS: Symptoms typically start gradually with tingling, numbness, burning, itching, or a “half-sleep” feeling in the palm of the hand, thumb, and middle three fingers. The fingers can feel swollen and weak, though “swelling” is usually NOT visible. CTS can occur in one or both hands, but it is usually worse in the dominant hand. Initially, you may only notice symptoms at night or in the morning. As CTS worsens, sleep interruptions, grip weakness, difficulty distinguishing hot from cold, increased pain, pain radiating up the arm, and more may occur.

CAUSES OF CTS: There are many causes of CTS that often occur in combination: 1) Heredity or genetics — being born with a smaller wrist than others; 2) Trauma — a fall on the arm/hand (sprain or fracture); 3)  Overuse of the arms/hands (like repetitive line work, serving tables, or using a computer), 4) Hormonal causes — during menstruation, with pregnancy, during menopause, diabetes, hypothyroid, overactive pituitary gland; 5) Rheumatoid arthritis; 6) Fluid retention; 7) Cysts, tumors, or spurs inside the tunnel; 8) Vibrating tools, 9) Hobbies such as knitting, sewing, crocheting; 10) sports; or 11) an “Insidious” or unknown cause!

CTS RISK FACTORS: 1) Gender: Women are three times more likely to develop CTS, possibly because they generally have a smaller carpal tunnel than men, in addition to hormonal differences; 2) Diabetes or other metabolic disorders; 3) Adults, especially >50 years old; 4) Job demands.

CTS DIAGNOSIS: Your doctor of chiropractic will review your patient history and then evaluate the neck, shoulder, arm, and hand, as ALL can be involved in producing CTS-like symptoms. He/she may also order blood tests (to check for diabetes, thyroid levels, rheumatoid arthritis, etc.) and/or an EMG/NCV (electromyogram/nerve conduction studies) to test for nerve damage.

We will FINISH THIS interesting discussion next week covering: Treatment, prevention, and research.

Facts

Mind = Blown

Carpal tunnel syndrome (CTS) is a very common condition. According to a report by the Bureau of Labor Statistics (BLS), CTS ranks SECOND among the major disabling diseases and illnesses in ALL private industries. The BLS states that workers with CTS may eventually have to give up their livelihood. They cite one study in which almost half of all CTS patients changed their jobs within 30 months following their diagnosis. Due to the controversy surrounding the issue of CTS and worker’s compensation, workers do not always receive compensation benefits.

The KEY to long-term cost containment associated with CTS is EARLY DIAGNOSIS and PREVENTION! The challenge is getting the worker to identify early symptoms and NOT feel intimidated to report them, which could then lead to prompt care and possibly job modifications, resulting in the best chance of preventing a more complicated and far more costly problem.

Because of the many factors that contribute to and/or cause CTS, there is similarly no one way to prevent it from happening. Treating any/all underlying medical condition(s) is important. Using simple common sense can go a long way to help minimize some of the risk factors that predispose a person to work-related CTS and other cumulative trauma disorders (CTDs).

For example, watching and mimicking veteran workers can be a great guide as to how to maximize efficient work methods while minimizing unnecessary stresses and strains. Other preventative “tricks” include learning how to adjust the work area, handle tools, or perform tasks that minimize hand/wrist strain. Maintaining proper posture and exercise programs to strengthen the fingers, hands, wrists, forearms, shoulders, and neck may also help prevent CTS.

Many companies have taken action to help prevent repetitive stress injuries. In one study, 84% of the companies surveyed reported that they were modifying equipment, tasks, and processes as part of a prevention effort; nearly 85% analyzed their workstations and jobs; and 79% purchased more ergonomic equipment. Unfortunately, there is NO EVIDENCE that any of these methods can completely protect a worker against CTS. Often, the best approach is to relocate the worker to a less repetitive job, but this is not always an option.

Doctors of chiropractic can observe the worker through a video or during a factory tour/visit and often identify ergonomic problems that can result in a low-cost, easy modification. Simple modifications coupled with quality care, patient education, and cooperation from BOTH the worker and the employer can typically help yield the best outcome for the CTS patient.

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Carpal Tunnel Basics

Here it is: carpal tunnel syndrome (CTS) in a nutshell!

WHAT: CTS is caused by an injury to the median nerve (MN) as it travels through the wrist.

WHERE: The eight small carpal bones and a ligament form a tunnel in which tendons and nerves pass through to reach the hand.

HOW: The MN gets pinched/irritated from repetitive stress.

WHY: The tunnel is tight as it includes the MN and nine rapidly moving muscle tendons!

PROGRESS: CTS usually starts slow and often progresses over weeks, months, even years.

SYMPTOMS: Pain, numbness, tingling, and/or weakness of the hand, sparing the little finger.

PROGNOSIS: CTS is easier to treat shortly after it starts, and waiting too long to seek care may lead to worse outcomes.

RISK FACTORS: 1) family history (genetics); 2) women are more likely to suffer from CTS than men; 3) age over 50; 4) manual jobs; 5) pregnancy; 6) conditions like diabetes, hypothyroid, rheumatoid arthritis (RA), osteoarthritis, autoimmune diseases (includes RA, certain types of thyroid disease), gout, kidney disease (especially dialysis patients), Down syndrome, amyloidosis, acromegaly, tumors on the median nerve; 7) medications (those that affect the immune system such as interleukin-2, possibly corticosteroids), anti-clotting drugs such as warfarin, hormone replacement, BCPs; 8) obesity; 9) smoking; 10) alcohol abuse; and 11) trauma/injuries (fractures, tendonitis).

TREATMENT: Ideally, treatment should begin as soon as possible after symptoms first start, but this RARELY occurs due its slow and gradual onset. Non-surgical care includes anti-inflammatory care (ice, anti-inflammatory nutrients—ginger, turmeric, bioflavonoids; NSAIDs like ibuprofen), wrist splinting (primarily at night), corticosteroid injections, job/ergonomic modifications, exercises (yoga, stretching, strengthening, and aerobic fitness), low level laser therapy, ice, acupuncture, and chiropractic care. Chiropractic care includes MANY of the above PLUS manual therapies applied to the neck, shoulder, arm, wrist, and hand.

Nutshell

Do You Have CTS?

Carpal tunnel syndrome (CTS) can be an extremely painful and activity-limiting condition. It affects many people of all ages and genders, though women are affected more often than men. But how do you know if what you are suffering from is truly CTS or if it’s another condition that’s producing the symptoms in your hand or wrist?

Carpal tunnel syndrome occurs when the median nerve is compressed as it passes through the wrist. However, the median nerve travels out of the neck, through the shoulder, elbow, and forearm before it passes through the wrist and into the hand. Pinching of the median nerve ANYWHERE along its course can give rise to the signs and symptoms of CTS including numbness, tingling, and/or pain into the hand and index, third, and thumb-side half of the fourth digits, and sometimes the thumb. If the pinch is significant enough, weakness can also occur. Sometimes the median nerve can become compressed at both the wrist and other body sites as it travels from the spinal cord to your hand, that’s why it’s important for a doctor to check for impingements along the entire course of the nerve.

But compression of the median nerve isn’t the only thing that can produce symptoms in the hand. Here are a couple of the more common conditions that are often confused with CTS:

1)  Ulnar neuropathy: This is pinching of the ulnar nerve (at the neck, shoulder, elbow, or wrist) but this gives rise to a similar numbness/tingling BUT into the pinky-side of the fourth and the fifth fingers (not the thumb-side of the hand). The most common pinch location is either at the neck or the inner elbow, the latter of which is called “cubital tunnel syndrome” or CuTS.

2)  Tendonitis: There are a total of nine tendons that pass through the carpal tunnel that help us grip or make a fist. Similarly, there are five main tendons on the back side of the hand that allow us to open our hands and spread our fingers. ANY of these tendons can get strained or torn, which results in swelling and pain as well as limited function BUT there is usually NO NUMBNESS/TINGLING!

3)  DeQuervain’s disease: This is really a tendonitis of an extensor tendon of the thumb and its synovial sheath that lubricates it resulting in a “tenosynovitis.” This creates pain with thumb movements, especially if you grasp your thumb in the palm of your hand and then bend your wrist sideways towards the pinky-side of the hand.

Chiropractors are well-trained to diagnose and treat patients with CTS. And if you don’t have CTS but another condition listed above, they can offer treatment (or a referral, if necessary) to help resolve it so you can return to your normal activities as soon as possible.

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