Thumb CMC Arthritis Care with Dr. Andrew Yang

Pain at the base of your thumb when pinching, gripping, or opening jars? You may have thumb CMC arthritis — also called basal joint arthritis — one of the most common forms of hand arthritis in adults.

Andrew Yang, MD evaluates thumb arthritis and discusses personalized treatment options at OrthoMD in Fort Lee, NJ and Bayside, NY (Queens), from conservative management through surgery when appropriate.

Understanding Thumb CMC Arthritis with Dr. Andrew Yang

The carpometacarpal (CMC) joint sits at the base of the thumb — where the thumb metacarpal bone meets the trapezium bone of the wrist. This joint has a unique saddle shape that allows the wide range of motion the thumb needs for pinching, gripping, and grasping. That same mobility, combined with the significant forces generated during hand use, makes the CMC joint particularly vulnerable to wear over time.

Thumb CMC arthritis — also called basal joint arthritis — occurs when the cartilage in this joint gradually deteriorates. As the protective cartilage wears away, the bones begin to rub against each other, causing pain, inflammation, swelling, and progressive loss of function.

It is one of the most common forms of hand arthritis, particularly in women over 40, though it can affect anyone with a history of repetitive hand use or prior thumb injury. Because the thumb is involved in nearly every gripping and pinching motion, even mild CMC arthritis can have a significant impact on daily activities.

Common Symptoms

Thumb CMC arthritis symptoms typically develop gradually and may worsen with use. If you notice any of the following, consider scheduling an evaluation with Andrew Yang, MD.

Pain, aching, or tenderness at the base of the thumb — near the wrist
Pain with pinching, gripping, twisting, or squeezing — especially opening jars or turning doorknobs
Weakness when pinching or gripping objects
Swelling or a bony prominence at the thumb base
Stiffness in the thumb, especially in the morning or after periods of rest
A grinding, clicking, or crunching sensation when moving the thumb
Difficulty with fine motor tasks — writing, buttoning clothing, or using small objects
In more advanced cases, a visible shift in the thumb's resting position (subluxation or deformity)

Causes & Risk Factors

Thumb CMC arthritis most commonly results from age-related wear, but several factors can increase the likelihood or severity of basal joint degeneration.

Age-related cartilage wear — the CMC joint degenerates gradually over time with everyday hand use
Female sex — thumb CMC arthritis is significantly more common in women, particularly after age 40
Prior injury — a previous thumb fracture, dislocation, or ligament sprain can accelerate joint degeneration
Repetitive hand use — occupations or activities that involve sustained pinching and gripping
Joint laxity — naturally loose ligaments may place more stress on the CMC joint over time
Inflammatory arthritis — conditions such as rheumatoid arthritis can also affect the CMC joint
Genetics — a family history of arthritis may increase susceptibility
Overuse — sustained high-demand use of the thumb in sports, crafts, or certain professions

How We Diagnose Thumb CMC Arthritis

An accurate diagnosis is the foundation of effective treatment. Thumb CMC arthritis is primarily diagnosed through a clinical examination, and in most cases, we can confirm the diagnosis and discuss treatment options during your first visit.

Patient history — when symptoms began, what aggravates them, and how they affect daily tasks
Physical examination — palpation at the thumb base to identify the precise location of tenderness
Grind test — a specific maneuver that compresses and rotates the CMC joint to reproduce pain characteristic of arthritis
Range of motion and strength testing — assessing grip and pinch weakness relative to the opposite hand
X-rays — used to evaluate joint space narrowing, bone spurs, and the degree of cartilage loss
Distinguishing from De Quervain's tenosynovitis, trigger thumb, wrist arthritis, or nerve-related symptoms when the presentation is atypical

Treatment Options

Non-Surgical Treatments

Many patients with thumb CMC arthritis benefit from conservative management and do not require surgery. Andrew Yang, MD will discuss a plan based on the severity of your symptoms and your functional goals.

Activity modification — avoiding or adapting tasks that load the CMC joint, such as heavy pinching and twisting
Thumb splinting and bracing — a thumb spica splint stabilizes the CMC joint during activity and may reduce pain significantly
Hand and occupational therapy — joint protection strategies, exercises to support surrounding muscles, and adaptive techniques for daily tasks
Anti-inflammatory medications — short-term NSAIDs or topical anti-inflammatory gels to manage pain and swelling
Ergonomic and adaptive tools — jar openers, padded grips, and other devices that reduce thumb joint stress

Corticosteroid Injection

When pain is limiting daily activities and conservative measures have provided insufficient relief, a corticosteroid injection into the CMC joint can offer effective pain relief:

Reduces inflammation directly within the arthritic joint
Can provide relief lasting weeks to months in appropriate candidates
Quick, in-office procedure with minimal downtime
May allow better participation in hand therapy

For selected cases, PRP (platelet-rich plasma) injection may be discussed during your evaluation; results vary.

When Surgery May Be Recommended

Surgery is considered when significant pain and loss of function persist despite several months of appropriate conservative treatment. Most patients who reach this point have tried splinting, therapy, and injections without adequate relief.

The most common surgical approach for thumb CMC arthritis is CMC arthroplasty — also called basal joint arthroplasty. This involves removing the arthritic trapezium bone and reconstructing the joint to restore a comfortable, functional thumb. Variations of this procedure have an established track record and are well-tolerated by most patients.

What to expect from surgery:

Outpatient procedure — no overnight hospital stay required in most cases
A period of splinting or casting after surgery to allow healing
Hand therapy to restore grip strength, pinch strength, and range of motion
Gradual return to activities over several months
High patient satisfaction in appropriately selected candidates

Get answers and a clear plan — usually same day.

Andrew Yang, MD can evaluate your thumb pain and discuss treatment options.

Why Choose OrthoMD for Thumb CMC Arthritis

Hand & Upper Extremity Specialist

Dr. Andrew Yang is fellowship-trained in hand and upper extremity surgery and focuses on conditions of the hand, wrist, and thumb, including thumb CMC arthritis.

Precise Diagnosis

Thumb base pain has multiple possible causes. We evaluate thoroughly to confirm whether CMC arthritis is the primary issue and rule out other conditions such as De Quervain's tenosynovitis, trigger thumb, or nerve involvement.

Conservative Care First

We always explore non-surgical options before recommending procedures. Many patients achieve meaningful relief through splinting, therapy, and injections — and we support that path fully when appropriate.

Surgical Care When Needed

For patients who require surgery, Dr. Andrew Yang's fellowship training in hand surgery includes CMC arthroplasty and related reconstructive procedures. He discusses each step and what to expect.

Personalized Treatment Planning

No two patients are the same. Your treatment plan is tailored to your symptoms, activity level, hand dominance, and long-term goals — not a generic protocol.

Two Convenient Locations

With offices in Fort Lee, NJ (Bergen County) and Bayside, NY (Queens), thumb arthritis treatment is accessible — with same-day evaluations often available.

Frequently Asked Questions

Ready to Get Your Thumb Feeling Better?

Schedule an evaluation with Andrew Yang, MD — get a diagnosis and personalized treatment plan, usually same day.

You can also visit our contact page for directions and office hours.

OrthoMD — Fort Lee, NJ

2175 Lemoine Ave, Ste 401A, Fort Lee, NJ 07024

Office hours: Monday, Wednesday, Friday 9:00 AM – 5:00 PM

Closed: Tuesday, Thursday, Saturday, Sunday

Phone: (917) 242-4585

Fax: (917) 993-6284

Email: contact@handorthomd.com

OrthoMD — Bayside, NY

42-21 Francis Lewis Blvd #107, Bayside, NY 11361

Office hours: Tuesday 9:00 AM – 5:00 PM

Closed: Monday, Wednesday, Thursday, Friday, Saturday, Sunday

Phone: (917) 242-4585

Fax: (917) 993-6284

Email: contact@handorthomd.com

Andrew Yang, MD · OrthoMD

English and Korean; Spanish interpreter available

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