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Brachydactyly type D, also known as short thumb, [3][1] stub thumb, [5][6] or clubbed thumb, [5][6] is a genetic trait clinically recognised by a thumb being relatively short and round with an accompanying wider nail bed.
13 sie 2024 · Hitchhiker thumb deformity is a musculoskeletal manifestation of rheumatoid arthritis presenting in the thumb, with the combination of: flexion of the metacarpophalangeal (MCP) joint. hyperextension of the interphalangeal (IP) joint. Terminology.
3 sie 2024 · Stener lesions are seen in the context of a torn ulnar collateral ligament (UCL) of the thumb's metacarpophalangeal (MCP) joint (gamekeeper's thumb) resulting in an interposition of the adductor pollicis aponeurosis between the ulnar collateral ligament and the MCP joint.
The abductor pollicis brevis is a muscle in the hand that functions as an abductor of the thumb. Structure. The abductor pollicis brevis is a flat, thin muscle located just under the skin. It is a thenar muscle, and therefore contributes to the bulk of the palm's thenar eminence.
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.
Technique. Normal Appearances. What to look for? Scan plane for the Flexor digitorum tendons. The Profundus and Superficialis. Ultrasound of normal flexor digitorum superficialis tendon (FDS) and Flexor digitorum Profundus tendon (FDP) at the level of the metacarpal neck.
The first signs and symptoms of rheumatoid arthritis (RA) may appear in the small joints of the hands. The fingers, thumbs, and wrists may be painful and swollen, with no clear cause. If left untreated, RA symptoms may become more severe over time, and certain joint deformities may develop.
