Final answer:
Perilunate dislocation is a dislocation of the scaphoid and lunate bones in the wrist. It is typically caused by a fall or trauma to the hand and can cause pain and limited mobility.
Step-by-step explanation:
The condition known as perilunate dislocation is a dislocation of the scaphoid and lunate bones. It occurs when the bones in the wrist - specifically the scaphoid bone and the lunate bone - are displaced from their normal positions. This can happen as a result of a fall or trauma to the hand, and it can cause severe pain and limited mobility.