2025年2月18日 · Swan neck deformity can affect one finger or all your fingers. It causes the different joints in your finger to bend different ways, forming an “S” shape. Injuries and diseases that damage tendons and ligaments in your fingers can cause it.

2017年12月13日 · Swan neck deformity (SND) affects your fingers. It occurs when multiple joints in your fingers bend in unusual positions because of a health condition or injury. SND can cause pain, as well...

2022年12月26日 · Swan Neck Deformities are degenerative conditions, often seen with rheumatoid arthritis, characterized by hyperextension of the PIP joint and flexion of the DIP joint due to an imbalance of muscle forces on the PIP.

The usual cause of a swan neck deformity is weakness or tearing of a ligament on the palm side of the middle joint of the finger. Sometimes it is caused by tearing of the tendon that flexes the middle joint. In other cases, injury of the tendon that straightens the end joint is the cause.

Swan neck deformity is a deformed position of the finger, in which the joint closest to the fingertip is permanently bent toward the palm while the nearest joint to the palm is bent away from it (DIP flexion with PIP hyperextension).

Swan-Neck Deformity (SND) is a deformity of the finger characterized by hyperextension of the proximal interphalangeal joint (PIP) and flexion of the distal interphalangeal joint (DIP). Reciprocal flexion of the metacarpal phalangeal joint (MCP) can also be present.

2024年2月18日 · Swan neck deformity is a musculoskeletal manifestation of rheumatoid arthritis presenting in a digit of the hand, due to the combination of: hyperextension of a proximal interphalangeal (PIP) joint; flexion of a distal interphalangeal (DIP) joint; Pathology

2024年10月24日 · Swan neck deformity is a finger condition, common in rheumatoid arthritis, marked by hyperextension at the base joint and flexion at the end joint.

Individuals with a swan neck deformity may experience pain and swelling in their finger joints. The PIP joint will hyperextend, while the DIP joint flexes toward the palm. If the deformity is rigid, it may significantly impact finger function, leading to a visibly crooked finger.

A swan neck deformity describes a finger with a hyperextended PIP joint and a flexed DIP joint. Conditions that loosen the PIP joint and allow it to hyperextend can produce a swan neck deformity of the finger.