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Cubitus Varus

- See: Baumann's Angle

- Discussion:
    - cubitus varus is the most common complication following supracondylar frx,
    - orginally, etilogy of cubitus varus was thought to occur because of growth disturbance of distal humeral epiphysis;
            - this may be true but is uncommon;
    - current thinking is that it stems from malreduction of frx, with medial displacement, internal rotation, and extension of the distal fragment;
            - this then permits distal fragment to tilt into varus;
    - cubitus varus produces a cosmetic deformity but little function deficit;
    - during reduction, a small amount of medial or lateral displacement or small amount of anterior or posterior angulation may be tolerated, but any malrotation is not acceptable;
     - rotation is verified under flouro w/ AP view, lateral view, & oblique views;
     - if reduction is not be obtained, there may be soft-tissue interposition which mandates open reduction;

- Ulnar Nerve Palsy:
     - Tardy ulnar nerve palsy in cubitus varus deformity associated with ulnar nerve dislocation in adults.  
     - Analysis of tardy ulnar nerve palsy associated with cubitus varus deformity after a supracondylar fracture of the humerus: a report of four cases. 

Post-traumatic cubitus varus. Long-term follow-up of corrective supracondylar humeral osteotomy in children.

Prevention of cubitus varus deformity in supracondylar fractures of the humerus.

Supracondylar fractures of the humerus. Assessment of cubitus varus by the Baumann angle.

Deformity following distal humeral fracture in childhood

Translation Step-cut Osteotomy for the Treatment of Posttraumatic Cubitus Varus

Corrective Dome Osteotomy Using the Paratricipital (Triceps-sparing) Approach for Cubitus Varus Deformity in Children