Both Bones Forearm Fracture MCQ Quiz | Elbow & Forearm

Welcome to this specialized MCQ quiz on Both Bones Forearm Fractures, a critical topic within the Elbow & Forearm module for MBBS students. This quiz is designed to test your understanding of the anatomy, mechanisms of injury, clinical evaluation, and management principles for these complex injuries. You’ll encounter questions covering everything from initial assessment and radiographic interpretation to surgical indications and potential complications like compartment syndrome and nerve injuries. This quiz serves as an excellent self-assessment tool to reinforce your knowledge and prepare for examinations. After completing the quiz and submitting your answers, you can review your score and download a PDF document containing all the questions along with their correct answers for future revision.

1. What is the most common mechanism of injury for a both-bone forearm fracture in adults?

2. In an adult, which of the following is an absolute indication for Open Reduction and Internal Fixation (ORIF) of a both-bone forearm fracture?

3. A patient presents with a forearm fracture and an inability to form an “OK” sign with their thumb and index finger. This suggests an injury to which nerve?

4. What is the most critical immediate complication to monitor for following a high-energy both-bone forearm fracture?

5. The “gold standard” for treatment of displaced diaphyseal both-bone forearm fractures in adults is:

6. A malunion of the radius that results in a loss of the normal radial bow primarily compromises:

7. A Monteggia fracture-dislocation consists of a fracture of the ulna and a dislocation of the:

8. The surgical approach to the middle third of the radius that utilizes the interval between the extensor carpi radialis brevis (ECRB) and the extensor digitorum communis (EDC) is known as:

9. What is radioulnar synostosis, a potential complication of both-bone forearm fracture treatment?

10. In a pediatric patient (e.g., age 8), what is the maximum acceptable angulation for a mid-shaft both-bone forearm fracture that can be managed non-operatively?

11. The primary function of the interosseous membrane is to:

12. A Gustilo-Anderson Type I open fracture is defined as:

13. The “five P’s” (Pain, Pallor, Paresthesia, Pulselessness, Paralysis) are late clinical signs of:

14. Which muscle is the primary deforming force causing supination of the proximal radial fragment in a proximal third radius fracture?

15. A Galeazzi fracture-dislocation consists of a fracture of the radius (typically distal third) and a dislocation/subluxation of the:

16. When examining radiographs of a forearm, which views are considered standard and essential?

17. What is the most common reason for non-union after surgical fixation of forearm fractures?

18. The posterior interosseous nerve (PIN) is most at risk during surgical exposure of the:

19. In the initial management of a suspected open both-bone forearm fracture in the field, what is the first priority after controlling bleeding?

20. What type of implant provides the most stable fixation for diaphyseal forearm fractures in adults?

21. The main goal of anatomical reduction and stable fixation of both-bone forearm fractures in an adult is to restore:

22. Post-operatively, after stable ORIF of a both-bone forearm fracture, when should active range of motion exercises for the wrist and elbow typically begin?

23. In a fracture of the radius proximal to the insertion of the pronator teres, the distal fragment is typically deformed into:

24. What is the most reliable early sign of compartment syndrome in a conscious patient with a forearm fracture?

25. For an isolated, non-displaced ulnar shaft fracture (nightstick fracture), what is the typical treatment?