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Hitchhiker's thumb, also known as distal hyperextensibility of the thumb, is the condition of having a thumb that has a distal phalange that bends backwards in an angle of 90°. This condition is benign (when isolated) and does not cause pain or affect the thumb with the trait negatively.
Sep 23, 2023 · Hitchhiker’s thumb is when your thumb is very flexible and can bend backward, sometimes up to 90 degrees. Learn more about what causes it, what conditions are associated with it, and more. Skip...
May 18, 2022 · Hitchhiker’s thumb means your thumb joint, closest to your nail, is hypermobile. Hypermobile means you can move your joints beyond the normal range of motion. If you can move your thumb joint backward more than 50 degrees, you may have hitchhiker’s thumb.
Jun 19, 2019 · Hitchhiker’s thumb is a thumb that’s hypermobile, or very flexible, and able to bend backward beyond the normal range of motion. Known formally as distal hyperextensibility, this...
Hitchhiker`s Thumb, also known as the Z-deformity or Z-shaped deformity, occurs when the distal phalanx of the thumb is able to flex backwards at an angle greater than 90 degrees, enabling it to mimic the shape of a hitchhiker`s thumb.
Dec 29, 2022 · Hitchhiker's thumb is otherwise known as distal hyperextensibility of the thumb. This is because of the genetic traits that make a person bend his thumb backward while stretching.
Hitchhiker's thumb is a layman's term for distal hyperextensibility of the thumb. The joint closest to the end of the thumb is called the distal joint. In most people, the distal joint of the thumb allows the thumb to straighten and bend forward (toward the palm of the hand).
Sometimes called duckbill or Z-thumb, hitchhiker’s thumb occurs when the thumb’s large knuckle (MCP joint) abnormally flexes while the top knuckle (IP joint) hyperextends. Some people think this abnormal bending resembles a Z-shape.
Hitchhiker’s thumb, where the thumb sticks out at a right angle to the hand, looking like the child is trying to hitch a ride. Brachydactyly, in which one or more of the fingers is abnormally short. Testing and diagnosis. Diagnostic evaluation for diastrophic dysplasia begins with a thorough medical history and physical examination of your child.
of all long bones, multiple joint flexion contractures and scoliosis, clubfeet, and abducted position of the thumbs referred to as ‘hitchhiker thumb’. Associated abnormalities: Micrognathia, cleft palate and thickened deformed ‘cauliflower’ ears. Investigations: Detailed ultrasound examination.
