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A fracture of the fourth and/or fifth metacarpal bones transverse neck secondary due to axial loading is known as a boxer's fracture. [1] [[[Boxer%27s_fracture#{{{section}}}| contradictory]]] The fifth metacarpal bone is the most common bone to be injured when throwing a punch.
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]
The neck of a metacarpal is a common location for a boxer's fracture, but all parts of the metacarpal bone (including head, body and base) are susceptible to fracture. During their lifetime, 2.5% of individuals will experience at least one metacarpal fracture. Bennett's fracture (base of the thumb) is the most common. [4]
The intermetacarpal joints are in the hand formed between the metacarpal bones. The bases of the second, third, fourth and fifth metacarpal bones articulate with one another by small surfaces covered with cartilage. The metacarpal bones are connected together by dorsal, palmar, and interosseous ligaments.
The carpometacarpal (CMC) joints are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal bones.. The CMC joint of the thumb or the first CMC joint, also known as the trapeziometacarpal (TMC) joint, differs significantly from the other four CMC joints and is therefore described separately.
The third metacarpal is connected to the trapezium, to the capitate, and to the hamate. The fourth and fifth metacarpals are connected to the hamate. The palmar carpometacarpal ligaments have a somewhat similar arrangement to the dorsal carpometacarpal ligaments, with the exception of those of the third metacarpal, which are three in number: a ...
Medial border of 5th metacarpal (in hand, 3rd digit is orientation of mid-line) Artery: Ulnar artery: Nerve: Deep branch of ulnar nerve (C8 and T1) Actions: Draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb: Identifiers; Latin: musculus opponens digiti minimi (Old: opponens quinti ...
They connect the carpal bones to the bases of the second to fifth metacarpals. The second metacarpal bone is connected to the trapezium, trapezoid, and capitate. The third metacarpal is connected to the capitate. The fourth metacarpal is connected to the capitate and hamate, and the fifth metacarpal is connected to the hamate.