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Fractures of scaphoid can occur either with direct axial compression or with hyperextension of the wrist, such as a fall on the palm on an outstretched hand. Using the Herbert classification system, there are three main types of scaphoid fractures. 10%-20% of fractures are at the proximal pole, 60%-80% are at the waist (middle), and the ...
This type of compression along the metacarpal bone is often sustained when a person punches a hard object, such as the skull or tibia of an opponent, or a wall. It can also occur as a result of a fall onto the thumb. This is a common injury sustained from bike falls, as the thumb is generally extended while around the handle bars.
To perform the test, the examiner grasps the wrist with their thumb over the scaphoid tubercle (volar aspect of the palm) in order to prevent the scaphoid from moving into its more vertically oriented position in ulnar deviation. For the test, the wrist needs to be in slight extension. The patient's wrist is then moved from ulnar to radial ...
The latter involves compression at the wrist of the superficial sensory branch of the radial nerve which does not innervate hand muscles. [citation needed] Robert Wartenberg (1887-1956) was a neurologist born in Belarus who worked in Germany until 1935 when he emigrated to the United States. He was widely published and described a number of ...
Axial loading of an object, commonly causing a jammed finger. Jammed fingers occur from axial loading at the tip of the finger. [7] Any activity in which the fingers are outstretched could result in a jammed finger. This is particularly common in ball-related sports, [8] where forceful contact with the ball and finger tip may occur. Contact ...
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).
Burst fracture – in which a vertebra breaks from a high-energy axial load; Compression fracture – a collapse of a vertebra, often in the form of wedge fractures due to larger compression anteriorly; Chance fracture – compression injury to the anterior portion of a vertebral body with concomitant distraction injury to posterior elements
The Rolando fracture is a type of broken finger involving the base of the thumb. [1] It is an intra-articular fracture. [2] It was first described in 1910 by Silvio Rolando. [3] It is typically T- or Y-shaped. [4]