Cubitus
valgus is a medical deformity in which the
forearm
The forearm is the region of the upper limb between the elbow and the wrist. The term forearm is used in anatomy to distinguish it from the arm, a word which is used to describe the entire appendage of the upper limb, but which in anatomy, techn ...
is angled away from the body to a greater degree than normal when fully extended. A small degree of cubitus valgus (known as the
carrying angle) is acceptable and occurs in the general population.
When present at birth, it can be an indication of
Turner syndrome
Turner syndrome (TS), commonly known as 45,X, or 45,X0,Also written as 45,XO. is a chromosomal disorder in which cells of females have only one X chromosome instead of two, or are partially missing an X chromosome (sex chromosome monosomy) lea ...
[Chapter on Amenorrhea in: ] or
Noonan syndrome. It can also be acquired through fracture or other trauma. The physiological cubitus valgus varies from 3° to 29°. Women usually have a more pronounced Cubitus valgus than men. The deformity can also occur as a complication of fracture of the lateral condyle of the humerus, which may lead to tardy/delayed
ulnar nerve palsy. The opposite condition is
cubitus varus
Cubitus varus is a varus deformity in which the extended forearm is deviated towards midline of the body.
Cubitus varus is often referred to as "Gunstock deformity", due to the crooked nature of the healing.
The "opposite" condition is cubitus ...
().
See also
*
Valgus deformity
A valgus deformity is a condition in which the bone segment distal to a joint is angled outward, that is, angled laterally, away from the body's midline. The opposite deformation, where the twist or angulation is directed medially, toward the ...
*
Varus deformity
A varus deformity is an excessive inward angulation ( medial angulation, that is, towards the body's midline) of the distal segment of a bone or joint. The opposite of varus is called valgus.
The terms varus and valgus always refer to the direc ...
References
External links
Image (congenital)
Congenital disorders of musculoskeletal system
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