Yes, it could be. I have osteoarthritis of the CMC joint [that's the one at the base of the thumb]. Does your husband do repetitve type activities or work that involves that thumb? That increases the likelihood of having a problem. I have had injections of cortisone into the joint and the rheumy had the occupational therapist build a special splint for that thumb. It has helped me avoid joint replacement.
Moderator Crohn's Disease Forum
CD, Ankylosing Spondylitis, peripheral neuropathy, diffuse connective tissue disease, Sjogren's Syndrome ?