John Duppenthaler, D.C.

Osteoarthritis is a form of arthritis characterized by the gradual wearing down of the cartilage tissue in joints. The condition is the most common cause of arthritis and will affect everyone who makes it to old age. However, it can develop earlier in life in individuals with certain gene variants as well as those with [..]

Carpal tunnel syndrome (CTS) is a condition that occurs when the mobility of the median nerve is restricted as it passes through the wrist, resulting in symptoms including pain, numbness, tingling, and/or weakness in the thumb, index finger, middle finger, and thumb-side of the ring finger. While most often associated with repetitive hand movements—especially in [..]

Carpal tunnel syndrome (CTS) is the most common peripheral neuropathy, affecting upward of 6% of adults in their lifetime. In some occupational groups, the prevalence jumps to nearly 20%! While carpal tunnel syndrome can be simply described as the symptoms that result from compression or restriction of the median nerve as it passes through the [..]

Carpal tunnel syndrome (CTS) is a common condition that occurs when the median nerve is compressed or restricted as it passes through the carpal tunnel located at the wrist, resulting in symptoms including pain, numbness, tingling, and/or weakness in the thumb, index finger, middle finger, and thumb-side of the ring finger. During their initial appointment, [..]

The carpal tunnel is a narrow passageway on the palm side of the wrist, enclosed by bones and ligaments, that the median nerve and several flexor tendons pass through. When the mobility of the median nerve is restricted at this point, the resulting symptoms of numbness, tingling, pain, and weakness in the thumb, index, middle, [..]

Lateral epicondylitis, more commonly known as tennis elbow, is a muscle tendon injury located on the thumb-side of the elbow. While the condition can result from a single traumatic event, tennis elbow is typically caused by repetitive motions that involve gripping or extending the wrist that overload the forearm muscles. Initially, the tennis elbow patient [..]

The carpal tunnel is formed by eight small bones that comprise the top of the tunnel with the transverse carpal ligament serving as the floor. The median nerve, blood vessels, and nine tendons and their sheaths pass through the tunnel. In a healthy individual, there is a constant fluid pressure within the carpal tunnel that [..]

Carpal tunnel syndrome (CTS) is a condition that occurs following compression or restriction of the median nerve as it passes through the wrist and into the hand. Thus, the focus of treatment is to alleviate pressure on the median nerve, allowing it to transfer motor and sensory information to and from the hand. Clinical guidelines [..]

Though peripheral neuropathies often develop in individuals whose daily activities involve fast, repetitive motions, no rest, awkward hand postures, firm gripping, and excessive vibration exposure like office workers, construction workers, line workers, etc., there is one group that meets these various criteria that we hardly consider: cyclists. It’s estimated that nearly 800,000 Americans commute to [..]

Carpal tunnel syndrome (CTS) is a condition that occurs when the median nerve is compressed or restricted as it passes through the wrist, resulting in sensory and motor symptoms, which include numbness, pain, paresthesia and sometimes weakness that can radiate from the wrist into the thumb and index, middle, and half of the ring finger. [..]