Thumb Injuries
A 28-year-old male punches a wall with a closed fist and presents with pain and swelling at the base of his thumb. Radiographs reveal a fracture of the base of the thumb metacarpal with a small triangular volar-ulnar fragment remaining in articulation with the trapezium, while the metacarpal shaft is subluxated proximally and radially. Regarding Bennett fracture-dislocation:
Mark each as TRUE or FALSE
Bennett fracture is an intra-articular fracture-dislocation of the thumb carpometacarpal joint; the ...
The mechanism is typically axial loading along the thumb metacarpal with the joint in partial flexio...
All Bennett fractures can be successfully treated with closed reduction and thumb spica casting; sur...
Surgical indications include articular step-off greater than 1-2mm, subluxation that cannot be maint...
The thumb CMC joint is a biconcave-convex saddle joint with motion in flexion-extension, abduction-a...
Answer the questions to see explanations
Click T (True) or F (False) for each option