<prompt> Wind-swept deformity is seen in:Ankylosing spondylitisScurvyRheumatoid ahritisRickets  <response>: Rickets Rheumatoid Ahritis Wind swept deformity is classically used for knee deformity of rickets Windswept deformity. 1. Knee: A valgus deformity of one knee in association of varus deformity of other knee is known as windswept deformity. It is seen in: rickets, hereditary dysplasia epiphyseal dysplasia of bone and rheumatoid ahritis. 2. Foot: Detion of all--toes in one direction usually laterally is known as windswept deformity. It is seen in rheumatoid ahritis. 3. Hand: Detion of all fingers usually medially is known as windswept deformity. It is seen in rheumatoid ahritis. Coming to the question here we have to choose one and this terminology is classically for rickets knee deformity. 