You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The following fractures are known for nonunion, EXCEPT: and explain in detail?
The distal humeral metaphysis (supracondylar area) is a well vascularized area with remarkably rapid healing and nonunion of a supracondylar fracture is extremely rare. Non union is almost never seen without infection (open wounds) and/ or extensive soft tissue devascularization. Ref: Tachdjian's Pediatric Ohopedics 3/e, Page 2130-75, 2060; Rockwood and Green's Fracture in Children 6/e, Page 543-86.