Have you ever woken up in the middle of the night with a numb, tingling hand that you have to shake out to get the feeling back? Do you experience “pins and needles” in your fingers while driving, typing, or holding a phone? This discomfort is more than just an annoyance; it’s often a sign of a compressive neuropathy, a common condition where a nerve in your arm is being squeezed or “pinched.”
Two of the most frequent types of this condition are carpal tunnel syndrome, which affects the wrist, and cubital tunnel syndrome, which affects the elbow. While they can be painful and disruptive, the good news is that they are highly treatable.
At California Pacific Orthopaedics, our team of dedicated hand, wrist, and elbow specialists in San Francisco has extensive experience in diagnosing and treating these nerve conditions. We are committed to helping you understand your symptoms and providing a personalized treatment plan to relieve your pain and restore function.
Common Symptoms and Causes
While both conditions involve a pinched nerve, they affect different nerves and therefore produce unique symptoms. Pinpointing where you feel the numbness is a key first step in identifying the problem.
Carpal Tunnel Syndrome (Pinched Nerve at the Wrist)
Carpal tunnel syndrome occurs when the median nerve, one of the main nerves to the hand, is squeezed as it passes through the carpal tunnel—a narrow passageway in your wrist. This nerve provides feeling to your thumb, index, middle, and half of your ring finger.
Common symptoms of carpal tunnel syndrome include:
- Numbness, Tingling, and Pain: You’ll primarily feel these sensations in the thumb, index, middle, and ring fingers. Many people describe it as a burning or an “electric shock” feeling.
- Nighttime Symptoms: Symptoms are often worse at night and can wake you from sleep. This is because people tend to bend their wrists when they sleep, which increases pressure in the carpal tunnel.
- Weakness and Clumsiness: You might find yourself dropping objects, struggling with fine motor tasks like buttoning a shirt, or feeling a general weakness in your grip.
- Radiating Pain: The pain can sometimes travel from the wrist up your arm.
What causes it? The carpal tunnel is a tight space, and the median nerve shares it with nine tendons that bend your fingers. Carpal tunnel syndrome is caused by anything that increases pressure in this space, thereby squeezing the nerve. This is often due to swelling of the tendons, medically known as tenosynovitis.
Cubital Tunnel Syndrome (Pinched Nerve at the Elbow)
Cubital tunnel syndrome happens when the ulnar nerve is compressed as it passes through a tunnel on the inside of your elbow. The ulnar nerve is what creates the painful “funny bone” sensation when you bump your elbow. This nerve provides feeling to your little finger and half of your ring finger.
Common symptoms of cubital tunnel syndrome include:
- Numbness and Tingling: These sensations are specifically felt in the little and ring fingers.
- Elbow Pain: An aching pain on the inside of the elbow is common.
- Weakness of Grip: You may notice difficulty with tasks that require fine finger coordination and pinching strength.
- Muscle Wasting: In severe or long-term cases, the muscles in your hand controlled by the ulnar nerve can weaken and visibly shrink, causing a sunken appearance.
What causes it? The ulnar nerve is vulnerable to compression for several reasons. Leaning on your elbow for long periods, or keeping your elbow bent for extended amounts of time (like when you’re sleeping or holding a phone to your ear), can stretch and irritate the nerve. Swelling, prior injuries, or arthritis in the elbow can also contribute to the problem.
Common Risk Factors
While anyone can develop these conditions, certain factors can make you more susceptible.
- Repetitive Motions: Jobs and hobbies that involve repetitive or forceful hand, wrist, or elbow movements—such as typing, using power tools, or playing a musical instrument—can increase your risk.
- Anatomy: Some people are simply born with smaller carpal or cubital tunnels, making their nerves more vulnerable to compression.
- Underlying Health Conditions:
- Diabetes can lead to nerve damage throughout the body.
- Rheumatoid arthritis and other inflammatory conditions can cause swelling around the nerves.
- Thyroid imbalances can lead to fluid retention that increases pressure.
- Pregnancy: The hormonal changes and fluid retention common during pregnancy can cause temporary carpal tunnel syndrome.
- Previous Injuries: A wrist fracture or elbow dislocation can alter the anatomy and put pressure on the nerves.
- Gender: Carpal tunnel syndrome is significantly more common in women than in men.
Diagnosis and Treatment in the San Francisco Bay Area
Ignoring hand and arm numbness can lead to permanent nerve damage, so it’s crucial to get an accurate diagnosis from an orthopaedic specialist.
Your Consultation at Cal Pac Ortho
When you visit our specialists in San Francisco, your appointment will begin with a thorough evaluation:
- Medical History Review: We’ll discuss your symptoms, your daily activities, and any relevant medical conditions.
- Physical Examination: Your doctor will perform several tests to check the sensation in your fingers, your hand and arm strength, and to look for signs of muscle wasting. They may gently tap over the nerves (Tinel’s sign) or have you hold your wrist or elbow in certain positions to see if your symptoms are reproduced.
Confirming the Diagnosis
To determine the severity of the nerve compression, your doctor may recommend a nerve conduction study (NCS) and electromyography (EMG). This test measures the speed and strength of electrical signals traveling through your nerves and muscles. It’s an excellent tool for confirming the diagnosis and ruling out other problems.
Your Personalized Treatment Plan
Our philosophy is always to begin with the most effective, least invasive treatments.
Non-Surgical Treatments
For many patients, symptoms can be resolved without surgery. Common approaches include:
- Splinting or Bracing: Wearing a brace, especially at night, keeps your wrist or elbow in a neutral, straight position, which takes pressure off the nerve while you sleep.
- Activity Modification and Ergonomics: We can help you identify and change the activities or positions that are causing your symptoms. This might include adjusting your workstation or avoiding leaning on your elbows.
- Medication: Over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) can help reduce pain and inflammation.
- Corticosteroid Injections: For carpal tunnel syndrome, a single injection of a powerful anti-inflammatory medication into the carpal tunnel can provide significant relief for months at a time.
Surgical Treatments
If non-surgical treatments fail to provide relief, or if you have signs of severe nerve damage like constant numbness or muscle wasting, surgery may be the best option. The goal of surgery is nerve decompression—to create more room for the nerve.
- Carpal Tunnel Release: This is one of the most common and successful procedures in all of surgery. The surgeon makes a small incision and cuts the ligament that forms the roof of the carpal tunnel, immediately relieving pressure on the median nerve.
- Cubital Tunnel Release: The surgeon releases the pressure on the ulnar nerve at the elbow. In some cases, the nerve may be moved to a new position where it is better protected, a procedure called an ulnar nerve transposition.
If you’re tired of living with the pain, numbness, and frustration of a pinched nerve, don’t wait. The renowned hand and upper extremity specialists at California Pacific Orthopaedics are here to help. Contact our San Francisco office today to schedule a consultation and start your journey toward lasting relief.
