How effective is cortisone injection for thumb arthritis?

Thumb arthritis commonly affects the joint at the base of the thumb, where pinching and gripping place substantial load. Cortisone can reduce irritation inside or around that joint, potentially making tasks such as opening containers or turning a key easier. The degree and duration of relief vary, and pain may return when the joint is stressed again.

An injection does not correct joint shape or restore worn cartilage. A careful examination helps distinguish thumb-base arthritis from tendon irritation, nerve symptoms, or pain elsewhere in the hand.

Discuss whether the injection is aimed at a specific joint and what activities you should modify afterward. A thumb support, changes to gripping technique, pacing, heat or cold, and hand therapy may complement the procedure. Ask about exercises that maintain movement without repeatedly provoking the joint.

Tell the clinician about diabetes, blood-thinning medicine, infection, allergies, and any previous injection reaction. Follow instructions for wound care and hand use, and do not increase forceful pinching simply because the thumb feels better.

Contact a healthcare professional if pain continues to limit hand use, the thumb becomes increasingly weak or deformed, or movement declines. Seek prompt advice for increasing redness, warmth, swelling, fever, or worsening pain after injection. Breathing difficulty or facial swelling requires emergency help.

Ask which joint is responsible for your pain, what relief is realistic, how long to use a thumb support, and which hand exercises can preserve useful movement. Ask what other options are available if relief is brief or gripping remains difficult.