Following x ray wrist lateral view shows:
Correct Answer: Perilunate dislocation
Description: Ref. Grainger and Allison's Diagnostic Radiology. Page. 502
Perilunate dislocation (X ray)
AP radiograph
Dislocation is often overlooked
Disruption of the normally smooth line made by tracing the proximal articular surfaces of the hamate and capitate
Increased overlap of lunate and capitate
Lateral radiograph
Dislocation more easily appreciable
Capitate not sitting within the distal articular 'cup' of the lunate
Line drawn through radius and lunate fails to intersect capitate
Lunate remains in articulation with distal radius (as opposed to lunate dislocation where it is usually in a volar position)
Abnormal scapholunate angle (normal 30-60 degrees, reduced in dorsal perilunate dislocation)
Abnormal capitolunate angle (normal 0-30 degrees, increased in dorsal perilunate dislocation)
Category:
Unknown
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now