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What is Varus deformity and explain in detail?
A varus deformity is an excessive inward angulation (medial angulation, that is, towards the bodys midline) of the distal segment of a bone or joint.  The opposite of varus is called valgus.  EX: Varus deformity results in a decreased Q angle of the knee joint.
The terms varus and valgus always refer to the direction that the distal segment of the joint points.
For example, in a valgus deformity of the knee, the distal part of the leg below the knee is deviated outward, in relation to the femur, resulting in a knock-kneed appearance