الفهرس 
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Abstract
Supracondylar fractures are the most common pediatric elbow fractures, with the peak incidence around 5 to 6 years of age. (1) There are numerous complications of supracondylar fractures and their treatment, which are divided into early ones like compartment syndrome and late ones like cubitus varus and myositis ossificans. Cubitus varus along with malunion remains the most common delayed complication, especially of Gartland type III supracondylar humerus fractures. (2)
Post-traumatic Cubitus varus in children is a deformity of the elbow resulting in a decreased carrying angle with deviation of the forearm toward the midline of the body.
Cubitus varus (gunstock deformity) is reported in up to 58% of patients, its occurrence is higher in fractures originally managed conservatively (3) (from 14% with cast immobilization following closed reduction to 3% in those stabilized with percutaneous pins).
Generally, Understanding elbow fractures and their complications in children begin with a basic knowledge of normal elbow anatomy and biomechanics.
Cubitus varus is either secondary to malunion or less commonly due to trochlear osteonecrosis, in which case the deformity is progressive and is also known as malignant cubitus varus. There are 3 components of the fracture displacement pattern that contribute to the deformity: medial tilt or varus, medial rotation, and to some extent hyperextension. (4)
The cubitus varus deformity is best assessed by comparing the injured elbow with the contralateral side and is most obvious when the arms are elevated and the elbow is extended. If the carrying angle is less than 5°, cubitus varus is identified. (5)
Cubitus varus produces a cosmetic deformity, besides a defect in the function of elbow. Varus deformity has been considered by many authors to be only a cosmetic deformity, though recent studies have suggested that there may be associated morbidity also.(6) An increased incidence of lateral condylar fractures in the elbow in varus is associated with dislocation of both the medial portion of the triceps and the ulnar nerve. (7) In addition to the snapping that may cause medial elbow pain.