What condition is caused by a proximal ulnar shaft fracture with radial head dislocation?

What condition is caused by a proximal ulnar shaft fracture with radial head dislocation?

• A. Galeazzi fracture
• B. Monteggia fracture
• C. Scaphoid fracture
• D. Terrible triad of elbow

Answer: (B)

The condition described in the question is a Monteggia fracture, which involves a specific injury pattern that includes a fracture of the ulna along with an associated dislocation of the radial head. This injury typically occurs due to a direct blow to the forearm or when resisting an external force, leading to the ulna being fractured and the radial head dislocating in the process. In contrast, a Galeazzi fracture is characterized by a fracture of the distal radius combined with an ulnar dislocation, which is different from the pattern specified in the question. A scaphoid fracture pertains to an injury of the wrist that does not involve the ulnar shaft or radial head. The terrible triad of the elbow, on the other hand, refers to a combination of an elbow dislocation, a fracture of the radial head, and a fracture of the coronoid process of the ulna, which is distinct from the injury described. Thus, the Monteggia fracture correctly captures the relationship between the proximal ulnar shaft fracture and radial head dislocation in this scenario.

The condition described in the question is a Monteggia fracture, which involves a specific injury pattern that includes a fracture of the ulna along with an associated dislocation of the radial head. This injury typically occurs due to a direct blow to the forearm or when resisting an external force, leading to the ulna being fractured and the radial head dislocating in the process.

In contrast, a Galeazzi fracture is characterized by a fracture of the distal radius combined with an ulnar dislocation, which is different from the pattern specified in the question. A scaphoid fracture pertains to an injury of the wrist that does not involve the ulnar shaft or radial head. The terrible triad of the elbow, on the other hand, refers to a combination of an elbow dislocation, a fracture of the radial head, and a fracture of the coronoid process of the ulna, which is distinct from the injury described. Thus, the Monteggia fracture correctly captures the relationship between the proximal ulnar shaft fracture and radial head dislocation in this scenario.