Boutonniere deformity
Boutonniere deformity is a sign indicative of rheumatoid arthritis, although it also is a result of a blow to the finger. Its basic appearance is that the middle joint of the injured finger bends down, while the fingertip bends back.[1] Formally, it manifests as hyperflexion at the proximal interphalangeal joint with hyperextension at the distal interphalangeal joint. The disorder is associated with tendon damage It is closely related to swan-neck deformity, which is more joint- than tendon-based[2]
Treatment
Treatment of deformities caused by trauma preferably is conservative and nonsurgical, although if surgery is required, it should not be delayed more than 3 weeks after the injury.[1] If caused by rheumatoid arthritis, medical management of that disease is paramount, although supportive measures such as padding and splints may be indicated.
References
- ↑ 1.0 1.1 Boutonnière Deformity, American Academy of Orthopedic Surgeons
- ↑ Roberto Sandoval, John A Kare, Roman V Voytsekhovskiy, Robert R Schenck (10 February 2010), "Swan-neck deformity: Overview", eMedicine