College of Massage Therapists of British Columbia (CMTBC) Practice Exam

What is the typical presentation of Trigger Finger?

1. Thumb in extension

2. Sudden sharp pain in wrist

3. Finger lock in flexion

4. Weak grip strength

The correct answer is: Finger lock in flexion

Trigger Finger, also known as stenosing tenosynovitis, typically presents as a condition where one or more fingers experience difficulty extending from a flexed position. This is characterized by the affected finger becoming "locked" in a bent position. Patients often describe a sensation of catching or locking when they attempt to straighten the finger. In this condition, the tendons that control the movement of the fingers may develop nodules or thickening, resulting in a reduced ability for the tendons to glide smoothly through the confines of the sheath surrounding them. This leads to the locking effect, particularly noticeable when the finger is flexed. The lock occurs when the tendon cannot smoothly pass through the constricted area of the sheath, causing the digit to remain in a flexed position until a sudden movement releases it. In contrast, the other choices do not accurately represent the typical presentation of Trigger Finger. A thumb in extension does not align with the locking characteristic of the condition. Sudden sharp pain in the wrist is more indicative of issues like wrist sprains or tendinitis, rather than Trigger Finger. Weak grip strength can be associated with many conditions, including arthritis or nerve issues, but it is not specific to Trigger Finger's locking mechanism. Therefore, the identification