Isolated lateral compartment arthritis or focal chondral defects in the setting of genu valgum in young. active individuals can be treated with a varus-producing distal femoral osteotomy with or without cartilage treatment. Both medial closing-wedge and lateral opening-wedge techniques have been described. with neither demonstrating clear superiority. https://www.markymarkscott.com/product-category/4-21/