Scaphoid fracture

Fractures of scaphoid account for 71.2% of carpal fractures, mostly in the scaphoid waist, 70% of scaphoid fractures, and scaphoid nodules and proximal scaphoid fractures each accounting for 10% to 15% . The fracture line starts from the palm, ulnar side and back to the dorsal side. More common in young people, children are rare. When the scaphoid fracture is accompanied by other carpal fractures and dislocations, the prognosis is poor. The scaphoid is mostly covered with articular cartilage. Only the scaphoid nodules and the dorsal lateral part of the waist are exposed with bone. The nourishing blood vessels enter the bone and supply blood to the surrounding branches. Proximal 2/3 to 3/4 of the blood of the scaphoid comes from the blood vessels that enter the bone at the waist, and distal 1/4 to 1/3 are nourished by the blood vessels that enter the scaphoid nodules. The blood vessels that enter the bone from the lumbar bone and supply blood to the proximal pole can be damaged and broken due to lumbar fractures, leading to ischemic necrosis in the proximal fractured segment.

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