Explanation:
The scaphoid is the most frequently fractured carpal bone due to its position and role in force transmission across the wrist. Injuries often occur from falls on an outstretched hand. The scaphoid has a tenuous blood supply, particularly to the proximal pole. This makes it vulnerable to nonunion and avascular necrosis. Early diagnosis is critical, though fractures may be radiographically occult initially. Immobilization or surgical fixation may be required depending on fracture pattern. Reference: Gelberman RH. "The Vascularity of the Scaphoid Bone." Journal of Hand Surgery, 1980.