Carpal Injuries
A 28-year-old male motorcyclist presents after a high-speed accident with severe wrist pain and swelling. He landed on his outstretched hand with the wrist hyperextended. Examination reveals marked swelling, loss of normal wrist contour, and reduced grip strength. Median nerve function is intact. Lateral radiograph shows the lunate articulating with the distal radius but the capitate displaced dorsally behind the lunate. Regarding perilunate injuries:
Mark each as TRUE or FALSE
The Mayfield classification describes progressive perilunate instability in stages: Stage I - scapho...
In a perilunate dislocation (Stage II-III Mayfield), the lunate maintains its articulation with the ...
Perilunate dislocations are benign injuries that rarely require surgical treatment; the median nerve...
Greater arc injuries involve fractures through the carpal bones (trans-scaphoid most common, also tr...
Radiographic features on lateral view include the "spilled teacup" sign (lunate tilted volarly in lu...
Answer the questions to see explanations
Click T (True) or F (False) for each option