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Swan neck deformity has many of possible causes arising from the DIP, PIP, or even the MCP joints. In all cases, there is a stretching of the volar plate at the PIP joint to allow hyperextension, plus some damage to the attachment of the extensor tendon to the base of the distal phalanx that produces a hyperflexed mallet finger.
Additionally, swan-neck deformity can be caused by weakening or tearing of the ligament and tendon on the middle joint of a finger. [10] Other causes of swan-neck deformity include untreated mallet finger, muscle spasticity, physical hand trauma, and many others.
Jaccoud arthropathy (JA), is a chronic non-erosive reversible joint disorder that may occur after repeated bouts of arthritis. [1] [2] It is caused by inflammation of the joint capsule and subsequent fibrotic retraction, causing ulnar deviation of the fingers, through metacarpophalangeal joint (MCP) subluxation, [1] [3] primarily of the ring and little-finger. [3]
The procedure was considered a major breakthrough in the medical field at the time. However, it is now considered an almost standard operation. The first successful surgery of this kind was conducted on 21 December 1992, in New York City, US. This surgical option is reserved for patients with advanced arthritis or with a hand deformity.
Plastic surgery: A hand deformity is a disorder of the hand that can be congenital or acquired. An example is Madelung's deformity. See also
Mallet finger of the middle finger. The tip of the finger bends downwards while the other fingers stay straight. Specialty: Emergency medicine, sports medicine, plastic surgery: Symptoms: Inability to extend the finger tip, pain and bruising of the finger [3] Causes: Trauma resulting in over bending of the finger tip [3] Diagnostic method
738.1 Other acquired deformity of head; 738.2 Acquired deformity of neck; 738.3 Acquired deformity of chest and rib; 738.4 Acquired spondylolisthesis; 738.5 Other acquired deformity of back or spine; 738.6 Acquired deformity of pelvis; 738.7 Cauliflower ear; 738.8 Acquired deformity of other specified site; 738.9 Acquired deformity of ...
[4] [16] As a result of frequent tissue injury, there can be an early onset of advanced osteoarthritis, [45] chronic degenerative joint disease, [45] swan-neck deformity of the fingers, [46] and Boutonniere deformity of the fingers. Tendon and ligament laxity offer minuscule protection from tearing in muscles and tendons, but these problems ...