If the head of the radius is removed, it will result in :
Complications of radial head excision in children :

Proximal migration of radius with inferior radio - ulnar (distal radio - ulnar) joint instability.
Postero - lateral instability.
Cubitus valgus deformity.
Lengthening of limb
Valgus deformity
Varus deformity
No deformity