Match each clinical vignette describing a mechanism of injury, physical exam finding, and radiographic pattern with the correct upper extremity orthopedic diagnosis.
- Monteggia fracture-dislocationA patient presents after a fall; imaging shows a proximal ulnar shaft fracture and radial head dislocation. The patient is unable to actively extend the fingers.
- Galeazzi fracture-dislocationA patient presents after a direct blow to the forearm; imaging reveals a distal radius shaft fracture and widening of the distal radioulnar joint, necessitating operative fixation.
- Colles fractureAn elderly patient falls on an outstretched hand; imaging shows an extra-articular, dorsally angulated distal radius fracture. The patient is at risk for a delayed rupture of the extensor pollicis longus tendon.
- Lunate dislocationA young adult falls onto a hyperextended wrist; lateral imaging shows a carpal bone displaced anteriorly. The patient exhibits new-onset paresthesias in the palmar aspect of the lateral three and a half digits.
- Hook of hamate fractureA professional golfer presents with chronic pain in the ulnar aspect of the palm and paresthesias in the small and ring fingers, worsened by tightly gripping objects.
Answer
The correct pairings match Monteggia with proximal ulna fracture/radial head dislocation, Galeazzi with distal radius fracture/DRUJ disruption, Colles with distal radius dorsal angulation and EPL tendon rupture risk, Lunate dislocation with median nerve compression, and Hook of hamate fracture with ulnar nerve compression in sports.
Each specific diagnosis correlates with a unique mechanism of injury, anatomical location, and neurovascular or structural complication as described in the clinical vignettes.
Step-by-Step Solution
Key Concept
Diagnosis, anatomical relationships, and complications of common forearm and carpal injuries.
Estimated Time:1m 30s