QuestionSBA
QuestionChoice
This patient has a scaphoid fracture. 80% of the vasculature of the scaphoid bone is derived from the dorsal carpal branch of the radial artery in a retrograde fashion. Problems with this blood supply such as those seen in fracture risk vascular interruption, hence avascular necrosis is the correct answer.
10007146
a
Avascular necrosis of the proximal scaphoid bone
QuestionChoice
Osteoarthritis of the wrist is not a specific complication of scaphoid fractures, but can occur as a result of wear and tear of the joints through repetitive use.
10007150
e
Osteoarthritis
QuestionChoice
Malunion refers to a fracture that heals in an incorrect position. It is not a specific complication of scaphoid fractures, but can occur with any type of fracture.
10007149
d
Malunion
QuestionChoice
Radial nerve palsy is associated with midshaft fractures of the humerus, presenting with wrist drop. It is not associated with scaphoid fractures.
10007147
b
Radial nerve palsy
QuestionChoice
This describes axillary nerve damage, unrelated to scaphoid fractures.
10007148
c
Sensory loss over the shoulder
Concept
Chapter
2693
4574
Avascular necrosis
Topic
154
Musculoskeletal physiology and disease
13976
A 29-year-old man attends his GP practice with pain in his hand. Four days prior, he tripped at work and fell onto his hand. He did not seek medical attention at the time of the injury. The GP elicits pain in the anatomical snuffbox.

Which of the following is the most likely complication of the injury?
a