The joint at the base of the thumb, the carpometacarpal joint or the CMCj is one of the most common joints in the body to be affected by osteoarthritis.
Managing early Osteoarthritis of the thumb
![Managing early Osteoarthritis of the thumb icon](https://www.esht.nhs.uk/wp-content/themes/esht2017/img/file-icon-32.png)
Our emergency departments are currently extremely busy, and you may face a long wait to be seen. More information is available on alternative services.
The joint at the base of the thumb, the carpometacarpal joint or the CMCj is one of the most common joints in the body to be affected by osteoarthritis.