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A collateral ligament flanks each MCP joint - one on either side. Each attaches proximally at the head of the metacarpal bone, and distally at the base of the phalynx. Each extends obliquely in a palmar direction from its proximal attachment to its distal attachment. [2]
Gamekeeper's thumb and skier's thumb are two similar conditions, both of which involve insufficiency of the ulnar collateral ligament (UCL) of the thumb. The chief difference between these two conditions is that skier's thumb is generally considered to be an acute condition acquired after a fall or similar abduction injury to the metacarpophalangeal (MCP) joint of the thumb, whereas gamekeeper ...
In a UK study involving nearly 6000 fractures seen in hospital, 3.6% were broken toes. [10] Fractures of big toes make up about a fifth [3] or third [8] of all toe fractures, and 5.5% of all foot and ankle fractures in major US trauma hospitals. [10] Toe fractures are the most common foot fractures. [8] About 20% of broken toes involve open ...
821 Fracture of other and unspecified parts of femur; 822 Fracture of patella; 823 Fracture of tibia and fibula; 824 Fracture of ankle; 825 Fracture of one or more tarsal and metatarsal bones; 826 Fracture of one or more phalanges of foot; 827 Other, multiple, and ill-defined fractures of lower limb; 828 Multiple fractures involving both lower ...
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]
A hammer toe, hammertoe or contracted toe is a deformity of the muscles and ligaments of the proximal interphalangeal joint of the second, third, fourth, or fifth toe, bending it into a shape resembling a hammer. In the early stage, a flexible hammertoe is movable at the joints; a rigid hammertoe joint cannot be moved and usually requires surgery.
The capsule, extensor tendon, and skin are very thin and lax dorsally, allowing for both phalanx bones to flex more than 100° until the base of the middle phalanx makes contact with the condylar notch of the proximal phalanx. [1] At the level of the PIP joint the extensor mechanism splits into three bands.
The Müller AO Classification of fractures is a system for classifying bone fractures initially published in 1987 [1] by the AO Foundation as a method of categorizing injuries according to therognosis of the patient's anatomical and functional outcome. "AO" is an initialism for the German "Arbeitsgemeinschaft für Osteosynthesefragen", the ...