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A boxer's fracture is the break of the fifth metacarpal bone of the hand near the knuckle. [4] Occasionally, it is used to refer to fractures of the fourth metacarpal as well. [1] Symptoms include pain and a depressed knuckle. [2] Classically, it occurs after a person hits an object with a closed fist. [3]
A broken finger or finger fracture is a common type of bone fracture, affecting a finger. [1] Symptoms may include pain, swelling, tenderness, bruising, deformity and reduced ability to move the finger. [ 2 ]
Almost every joint in the body can be 'cracked' in this way, but the joints which require the least amount of force to produce this effect include the hallux (big toes), the knuckles and the neck joints. This phenomenon is caused when the movement of the joint lowers the pressure of its synovial fluid, causing the bubbles to form and burst.
Dislocations can be categorized based on the direction that the fingertip moves in relation to the knuckle. [6] If in the direction of the palm, it is a volar dislocation. If in the direction of the back of the hand, it is a dorsal dislocation. [6] If in the direction to either side, it is a lateral dislocation. [2]
An open fracture (or compound fracture) is a bone fracture where the broken bone breaks through the skin. [2] A bone fracture may be the result of high force impact or stress , or a minimal trauma injury as a result of certain medical conditions that weaken the bones, such as osteoporosis , osteopenia , bone cancer , or osteogenesis imperfecta ...
Constant knuckle cracking may also be considered a compulsive body-focused repetitive behavior by mental health professionals. “If you’re finding that you need to crack your knuckles often ...
Type 1a pseudohypoparathyroidism is clinically manifest by bone resorption with blunting of the fourth and fifth knuckles of the hand, most notable when the dorsum of the hand is viewed in closed fist position. This presentation is known as 'knuckle knuckle dimple dimple' sign (Archibald's sign).
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