Among the many osseous abnormalities that may be seen in rheumatoid arthritis, the boutonniere deformity is the culmination of multiple abnormalities in the hand. Specifically, the deformity arises from hyperextension of the distal interphalangeal joint, while the proximal interphalangeal joint is flexed.
Rizio L, Belsky MR: Finger deformities in rheumatoid arthritis. Hand Clin 1996 Aug;12(3):531-40.
Massengill JB: The boutonniere deformity. Hand Clin 1992 Nov;8(4):787-801.
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. Boutonniere Deformity. OrthopaedicsOne Articles. In: OrthopaedicsOne - The Orthopaedic Knowledge Network. Created Jan 06, 2008 14:18. Last modified May 04, 2011 14:33 ver.6. Retrieved 2019-03-26, from https://www.orthopaedicsone.com/x/3oE9.
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