Carpal tunnel syndrome (CTS) is a compressive neuropathy of the median nerve at the wrist.  The carpal tunnel is located at the base of the palm and is bounded on 3 sides by carpal bones and anteriorly by the transverse carpal ligament. Inside run the median nerve, flexor tendons, and their synovial sheaths. It is the most common entrapment neuropathy, with repetitive, forceful angular hand movements or vibration placing persons at risk for the condition. Diagnosis is based on clinical history and findings, along with corroborating electrodiagnostic studies. [2, 3, 4, 5, 6, 7]
Carpal tunnel syndrome (CTS) is caused predominantly by compression of the median nerve at the wrist because of hypertrophy or edema of the flexor synovium. Pain is thought to be secondary to nerve ischemia rather than direct physical damage of the nerve. 
See the images below.
Carpal tunnel syndrome (CTS) is the most frequently encountered peripheral compressive neuropathy. The prevalence of carpal tunnel syndrome in the United States is estimated at 3.7%, and the annual incidence is estimated at 0.4%. [9, 10] Early in the course of CTS, the neurologic findings are reversible. If untreated, CTS can result in thenar atrophy, chronic hand weakness, and numbness in the median nerve distribution of the hand. CTS is more prevalent in females than in males [11, 2] and most common in middle age.
What would you like to print?