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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.
Rheumatoid arthritis is a primary cause of swan-neck deformity due to the presence of inflammation of the joints. [11] Additionally, swan-neck deformity can be caused by weakening or tearing of the ligament and tendon on the middle joint of a finger. [10]
Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. [1] It typically results in warm, swollen, and painful joints. [1] Pain and stiffness often worsen following rest. [1] Most commonly, the wrist and hands are involved, with the same joints typically involved on both sides of the body. [1]
Boutonniere deformity is a deformed position of the fingers or toes, in which the joint nearest the knuckle (the proximal interphalangeal joint, or PIP) is permanently bent toward the palm while the farthest joint (the distal interphalangeal joint, or DIP) is bent back away (PIP flexion with DIP hyperextension).
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]
While there are over 100 types of arthritis and related conditions, Dr. Gendai Echezona, a fellowship-trained, triple board-certified anesthesiologist specializing in interventional pain ...
Osteoarthritis is the most common form of arthritis affecting more than 3.8% of people, while rheumatoid arthritis is the second most common affecting about 0.24% of people. [10] In Australia about 15% of people are affected by arthritis, [ 11 ] while in the United States more than 20% have a type of arthritis. [ 3 ]
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 unspecified site; 739 Nonallopathic lesions, not ...