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This abnormality is clinically evident when the patient is unable to flex the thumb without flexing the distal interphalangeal joint of the index or middle finger or vice versa. Flexor tenosynovitis is a common finding in the patients with Linburg–Comstock syndrome.
Froment sign is the flexion of the interphalangeal joint of the thumb rather than adduction of the entire thumb. Note that the flexor pollicis longus is nearly always innervated by the anterior interosseous branch of the median nerve. Simultaneous hyperextension of the thumb MCP joint is indicative of ulnar nerve compromise. This is also known ...
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Mallet finger is acquired due to injury to the thin extensor tendon that functions to straighten the end (DIP) joint of a finger. [8] Jamming of the finger induces a rupture of the extensor tendon or a broken bone at the tendon's site of attachment. [9] This results in a droopy and crooked appearance of the end joint of the finger, resembling a ...
Anterior interosseous syndrome is a medical condition in which damage to the anterior interosseous nerve (AIN), a distal motor and sensory branch of the median nerve, classically with severe weakness of the pincer movement of the thumb and index finger, and can cause transient pain in the wrist (the terminal, sensory branch of the AIN innervates the bones of the carpal tunnel).
The peripheral metacarpals (those of the thumb and little finger) form the sides of the cup of the palmar gutter and as they are brought together they deepen this concavity. The index metacarpal is the most firmly fixed, while the thumb metacarpal articulates with the trapezium and acts independently from the others.
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Tip of thumb and index finger touching. Other three fingers are folded. Yoni Mudra Attitude of the womb or source Hands touching by the tips of thumbs and index fingers. Other six fingers are either interlaced or folded and pressed together. Bhairav Mudra Fierce or terrifying attitude Upturned hands overlapping each other, usually right on top ...