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Basal Joint Arthritis

Why Does it Occur?

Basal Joint Arthritis is very common, mostly because we use our thumbs for just about everything.  After all, the opposable thumb is one of the main things that differentiates us from the rest of the animal kingdom! Just like arthritis in other joints, this tends to be from a "wear and tear" phenomenon.  Certain things predispose you to getting Basal Joint Arthritis and include previous trauma to the thumb, ligamentous laxity, or inflammatory disorders such as Rheumatoid Arthritis.  



Basal Joint Arthritis can cause hand pain at the base of the thumb and palm and is typically made worse with pinching, grasping, opening jars, or turning keys.  The onset of pain is usually gradual.  Flare-ups may occur because of overuse, mild trauma, weather changes, or sometimes for no particular reason.  


Diagnostic Testing

​X-rays are typically ordered to help confirm the diagnosis and grade the arthritis severity.  Other radiologic studies or tests may be ordered to help rule out other diagnoses.  Blood tests and/or a Rheumatologic consult may be ordered if an inflammatory component is suspected.


Treatment Options

The mainstay of treatment consists of rest and activity modifications to back down on gripping or overuse of the thumb. Use of a small, custom-made splint to rest the area is often advised.  Anti-inflammatory medications and possible injections such as Platelet-Rich Plasma (PRP) and cortisone may be advised.  PRP injections and other stem cell treatments have shown promise in certain patients and can be discussed with Dr. Steven Lee. 


Surgical Treatment

Surgery may be recommended if you have not improved with non-operative treatment.  The basis of surgery for this disorder is to prevent the arthritic bones from rubbing on each other causing pain.  This is achieved by removing one of the bones in the wrist (Trapezium).  While this may seem strange to do, this is performed in all versions of this surgery designed to treat this problem, and it is not unlike a rotten wisdom tooth in that it is not saved, but removed.  In order to maintain this space, a reconstruction is performed.


Learn more about scheduling surgery.


Post-Operative Care

After surgery, a splint will be placed on your hand and wrist that must be kept clean and dry.  After a week, the splint is removed in office, and we will most likely remove your sutures at that time.  You will then be obstructed to obtain a custom, more comfortable splint, that you must wear for an additional 5 weeks.  This splint can be removed to wash and shower.  Hand therapy is started after 5 weeks of custom splint wear.  After surgery, you may have some sensitivity at the incision site, especially with gripping, which should go away after about 4 weeks. Hand Therapy is important to help decrease scar tissue, decrease hypersensitivity, and improve range of motion.


Learn more about post-operative care.

Post-Operative Instructions

Download here.


*It is important to note that all of the information above is not specific to anyone and is subject to change based on many different factors including but not limited to individual patient, diagnosis, and treatment specific variables.  It is provided as an educational service and is not intended to serve as medical advice.  Anyone seeking specific orthopedic advice or assistance should consult Dr. Steven Lee or an orthopedic specialist of your choice.

*Dr. Steven Lee is a board certified orthopedic surgeon and is double fellowship trained in the areas of Hand and Upper Extremity Surgery, and Sports Medicine. He has offices in New York City, Scarsdale, and Westbury Long Island.