Certified Hand Therapist (CHT) Practice Exam

Which digits are commonly associated with metacarpal fractures?

1. 2nd and 3rd digits

2. 1st and 5th digits

3. 4th and 5th digits

4. 2nd and 4th digits

The correct answer is: 1st and 5th digits

The common association of metacarpal fractures with the 1st and 5th digits is primarily due to their anatomical locations and the frequent types of injuries experienced by these fingers. Metacarpal fractures often occur in individuals involved in trauma or high-impact activities. The 1st digit, or thumb, is particularly susceptible to injuries due to its unique position and function, such as in falls or fistfights where it is involved in striking surfaces. The 5th digit, or little finger, is also commonly fractured in similar contexts; for instance, the ‘boxer’s fracture’ typically refers to a fracture of the fifth metacarpal occurring when someone punches with a closed fist. While the other digits can certainly experience fractures, they do not have the same prevalence as those of the first and fifth digits in typical injury scenarios. Understanding the distribution of these injuries helps in the diagnosis and management of metacarpal fractures in clinical practice.