Trigger Finger
What is it: Trigger finger is a condition where the flexor tendon thickens or develops a nodule that gets caught at the proximal pulley of the finger and prevents easy extension of the finger and causing a "snapping" sensation.
How does it present: Trigger finger most commonly occurs in the ring or middle fingers and patients may present with pain on the palmar aspect of their finger or hand. They may describe the "locking" or "snapping" sensation caused by the condition or may find they wake up with their finger locked. Trigger finger may be associated with diabetes or rheumatoid arthritis, but is often idiopathic.
Common exam findings: On exam you may be able to witness the "locking" or "snapping" phenomenon of the finger. You may also be able to palpate a nodule on the palmar surface of the hand in the region of the MCP joint of the affected finger. The nodule may be tender or no-tender.
Tests and treatment: No specific studies are required for the diagnosis as it is primarily clinical. Treatment may include supportive measures or consideration of a corticosteroid injection. If results are not satisfactory, surgical release can be considered.