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 most often used to describe the entire appendage of the upper limb, but which in ...
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), also known as 45,X, or 45,X0, is a genetic condition in which a female is partially or completely missing an X chromosome. Signs and symptoms vary among those affected. Often, a short and webbed neck, low-set ears, low hair ...
[Chapter on Amenorrhea in: ] or
Noonan syndrome
Noonan syndrome (NS) is a genetic disorder that may present with mildly unusual facial features, short height, congenital heart disease, bleeding problems, and skeletal malformations. Facial features include widely spaced eyes, light-colored ...
. 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 ().
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 Varus may refer to:
* Var River or Varus, a river in France
* Stura di Lanzo or Varus, a river in Italy
* Varus deformity, a medical term for the inward angulation of the distal segment of a bone or joint
** Coxa vara, affecting the hip
** Genu va ...
References
External links
Image (congenital)
Congenital disorders of musculoskeletal system
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