Why are there so many neurosurgical organizations

[Guest]

ABNS - American Board of Neurological Surgeons
AANS - American Association of Neurological Surgeons (JNS)
CNS - Congress of Neurological Surgeons (Neurosurgery)
WFNS - World Federation of Neurosurgical Societies (World Neurosurgery)
SNS - Society of Neurological Surgeons
CSNS - Council of State Neurosurgical Societies
AAcNS - American Academy of Neurological Surgeons
NSA - Neurosurgical Society of America
SUN - Society of University Neurosurgeons
NREF - Neurosurgical Research & Education Foundation

[Guest]

because starting up and running an organization is a quick way to FEEL like you're a player in organized neurosurgery.

realistically, only aans, cns, and sns matter. abns doesn't count because every field has a board. all others are either (a) a subsidiary or (b) not relevant. sorry not sorry.

and i know, this is very north america centric. but if organizations outside that region mattered, OP would have mentioned them. they would also have their own higher impact journals and people from those countries would not be trying to come to the us and canada to train.