<prompt> The appropriate criteria for proceeding with High Tibial osteotomy in a case of Osteoarthritis of knee include the following except:Age more than 65 years.Isolated Ahlback grade I or II lateral compartmental arthrosis.90deg arc of motion of the knee.Flexion contracture of 15-20deg.  <response>: Ans. A. Age more than 65 years. General selection criteria for High Tibial osteotomy for genu valgum includea. Age younger than 65 years,b. Isolated Ahlback grade I or II lateral compartmental arthrosis,c. Minimum ligamentous laxity,d. 90deg arc of motion of the knee, ande. A flexion contracture of 15-20deg. 