Media · Patient Education
Carpal Tunnel Syndrome
Signs, symptoms, and treatment options explained by Dr. Andrew Federer — board-certified hand, wrist, and elbow specialist.
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A Conversation with Dr. Federer
In this CU Medicine feature, Dr. Federer walks through how carpal tunnel syndrome develops, the symptoms patients most often describe, how it's diagnosed, and the full spectrum of nonsurgical and surgical treatment options.
Source · CU Medicine
The Condition
What Is Carpal Tunnel Syndrome?
The carpal tunnel is a narrow passageway in the wrist formed by the carpal bones and the transverse carpal ligament. The median nerve and nine flexor tendons travel through it. When tissues in the tunnel swell, the median nerve is compressed — causing the numbness, tingling, and pain that define carpal tunnel syndrome.
It is the most common compressive neuropathy in the upper extremity and, when treated early, has excellent outcomes.
Symptoms
How It Feels
Symptoms typically begin gradually and may come and go before becoming constant. Pay attention to the pattern — especially nighttime symptoms — and bring those details to your visit.
- Numbness or tingling in the thumb, index, middle, and half of the ring finger
- Burning, aching pain that may radiate up the forearm
- Hand weakness — dropping objects or trouble buttoning a shirt
- Symptoms that wake you at night or appear when driving or holding a phone
- Loss of grip strength and thumb (thenar) muscle wasting in advanced cases
Diagnosis
How It's Diagnosed
Diagnosis begins with a focused history and physical exam. Provocative maneuvers — including Tinel's sign, Phalen's test, and the carpal compression test — help confirm median nerve irritation. When the diagnosis is unclear or surgery is being considered, nerve conduction studies and electromyography (EMG) quantify severity.
Clinical Exam
Provocative testing and assessment of sensation and thenar muscle strength.
Nerve Conduction Study
Measures the speed of signals across the carpal tunnel to grade severity.
Ultrasound
Visualizes median nerve swelling and rules out space-occupying lesions.
Treatment
A Stepwise Approach
Treatment is tailored to the severity of nerve compression and the impact on your daily life. Most patients start with nonsurgical care; surgery is highly effective when conservative measures fall short.
Activity Modification
Adjusting workstation ergonomics, taking frequent breaks, and avoiding sustained gripping or wrist flexion.
Night Splinting
A neutral wrist splint worn at night keeps pressure off the median nerve and is often the first-line treatment.
Corticosteroid Injection
An in-office injection into the carpal tunnel can reduce inflammation and provide weeks to months of relief.
Carpal Tunnel Release
An outpatient surgical procedure — open or endoscopic — that divides the transverse carpal ligament to relieve nerve pressure.
After Surgery
Recovery & Outcomes
Carpal tunnel release is typically performed as a same-day procedure under local or regional anesthesia. Most patients use their hand for light activities within days and return to demanding work over four to six weeks. Night symptoms often resolve immediately; numbness and grip strength continue to improve over months.
Schedule a Consultation
If you're experiencing hand numbness, tingling, or weakness, Dr. Federer's team is ready to help.