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The Prevalence of Sacroiliac Joint Degeneration in Asymptomatic Adults by Jonathan-James T. Eno, Christopher R. Boone, Michael J. Bellino, and Julius A. Bishop J Bone Joint Surg Am Volume 97(11):932-936 June 3, 2015 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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A type-0 sacroiliac joint has no evidence of degenerative changes. Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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A type-1 sacroiliac joint has evidence of mild degenerative changes (mild subchondral sclerosis, minimal osteophyte formation, and subtle joint-space narrowing). Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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A type-2 sacroiliac joint has substantial degeneration without ankylosis (large bridging osteophyte formation). Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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A type-3 sacroiliac joint has sacroiliac joint ankyloses. Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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Patient age distribution. Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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Prevalence of sacroiliac (SI) joint degeneration per decade of life. Jonathan-James T. Eno et al. J Bone Joint Surg Am 2015;97:932-936 ©2015 by The Journal of Bone and Joint Surgery, Inc.
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