Finger Injuries
A 28-year-old volleyball player presents after jamming her right middle finger during a game. Examination reveals swelling and deformity of the PIP joint. The lateral radiograph shows the middle phalanx displaced dorsal to the proximal phalanx with no visible fracture. Regarding PIP joint dislocations:
Mark each as TRUE or FALSE
Dorsal PIP dislocations are the most common type and result from hyperextension injury; the volar pl...
Volar PIP dislocations are less common and result from a volar-directed force on a semiflexed finger...
Lateral PIP dislocations occur from a radially or ulnarly directed force and tear the volar plate on...
Dorsal fracture-dislocations involve a volar lip fracture of the middle phalanx base; stability depe...
The "V-sign" on lateral radiograph indicates a congruent joint; loss of the V-sign suggests subluxat...
Answer the questions to see explanations
Click T (True) or F (False) for each option