Carpal Tunnel Syndrome

Carpal tunnel syndrome typically begins with intermittent sensory changes that progress over months to years if left untreated. Some patients have mild symptoms for years; others deteriorate rapidly. **Common symptoms include:**

• Numbness and tingling (paresthesia) in the thumb, index finger, middle finger, and the thumb side of the ring finger — the classic median nerve distribution. The little finger is spared.
• Nocturnal symptoms: Waking at night with hand pain, numbness, or the urge to "shake out" the hand is highly characteristic. Many patients notice symptoms worst in the early morning hours.
• Pain radiating into the forearm or, less commonly, upward toward the shoulder.
• Weakness of grip: Difficulty opening jars, turning keys, or maintaining a firm handshake.
• Dropping objects: Patients report unexpectedly releasing cups, utensils, or tools due to a combination of sensory loss and motor weakness.
• Thenar atrophy (advanced cases): Wasting of the muscle pad at the base of the thumb signals prolonged, severe compression and indicates urgency for treatment.
• Diminished two-point discrimination: Progressive loss of the ability to distinguish closely spaced touch stimuli in the fingertips.

Call Maryland Orthopedic Specialists today: (301) 515-0900. Early treatment protects nerve function and avoids irreversible muscle loss.

Diagnosis combines clinical examination with electrodiagnostic testing to confirm the nerve entrapment and quantify its severity before recommending treatment.

Clinical Examination

Our hand surgeons perform a focused neuromuscular examination of the hand and wrist, including:

• Phalen's Test: The patient holds both wrists in full, sustained flexion for 60 seconds. Reproduction of numbness or tingling in the median nerve distribution within 60 seconds is a positive result, with a sensitivity of approximately 75–80%.
• Tinel's Sign: The examiner lightly taps over the carpal tunnel at the wrist crease. A shooting or electric sensation into the median-nerve fingers is a positive result, indicating an irritable nerve.
• Carpal Compression Test (Durkan's Test): Direct firm pressure is applied over the carpal tunnel for 30 seconds. This test has high sensitivity and specificity and is often the most reproducible of the three.
• Thenar motor assessment: Strength testing of thumb opposition and abduction detects early thenar weakness that may not yet be visible as atrophy.
• Sensory testing: Static and moving two-point discrimination, light touch, and vibration threshold testing map the degree of sensory loss.

Electrodiagnostic Studies

Nerve conduction velocity (NCV) testing and electromyography (EMG) are considered the gold standard for confirming CTS and grading its severity. These studies:

• Quantify slowing of median nerve conduction across the wrist (the hallmark finding in CTS).
• Distinguish mild, moderate, and severe compression, which directly guides treatment decisions.
• Rule out alternative diagnoses such as cervical radiculopathy, thoracic outlet syndrome, or peripheral neuropathy.
• Provide an objective baseline for tracking recovery after treatment.

NCV/EMG is particularly important before surgical planning, allowing the surgeon to counsel patients on expected nerve recovery based on pre-operative severity.

What You Leave With

At the conclusion of your evaluation, you will receive a clear diagnosis with severity grading, an explanation of which structures are involved and why your symptoms occur, a personalized treatment plan with non-operative and surgical options outlined, and (if electrodiagnostic testing is ordered) instructions for scheduling that test, typically within days.

Recovery timelines vary by surgical technique, pre-operative severity, age, and patient compliance with post-operative instructions.

Endoscopic Release

• Days 1–3: Light dressing, minimal restriction. Most patients begin gentle finger motion immediately.
• 1–2 weeks: Return to light daily activities and desk work for most patients.
• 4–6 weeks: Return to full unrestricted activity, including manual labor, sports, and lifting, as guided by the surgeon.

Open Release

Recovery follows a similar trajectory but is typically 1–2 weeks longer due to palmar incision healing. Pillar pain (tenderness at the thenar and hypothenar eminences) is more common after open release and generally resolves within 6–12 weeks.

Nerve Recovery

Resolution of numbness and tingling depends on how long the nerve was compressed and how severe the compression was. In mild-to-moderate CTS, sensory symptoms often begin improving within days to weeks of surgery. In severe cases with prolonged compression, nerve regeneration is slower and may take several months, and in cases of advanced thenar atrophy, motor recovery may be incomplete. The nerve recovers at roughly 1 mm per day (1 inch per month); patients with severe pre-operative findings should expect a longer, more gradual recovery.

Physical Therapy

PT is prescribed selectively. Most uncomplicated releases do not require formal therapy. When indicated (scar sensitivity, grip weakness, return to high-demand work), occupational or physical therapy focuses on:

• Scar desensitization and massage
• Progressive grip strengthening
• Nerve and tendon gliding exercises
• Ergonomic re-education

Grip strength typically returns to full within 3–6 months.