Surgical devices, kits and methods of using thereof are described. Generally, the surgical kit includes an osteotomy guide device and/or a bone spacer guide device. The surgical kit can be used in a surgical method for correcting a malalignment of the knee joint that involves performing a fibular osteotomy and/or a tibial osteotomy, and/or administering stem cells. Generally, the osteotomy guide device is configured to allow drilling to occur around the tibia and across a horizontal cross-sectional plane of the tibia so that a direction of each of the drill holes that are formed in the tibia is substantially parallel to or on the same horizontal cross-sectional plane of the tibia. The osteotomy guide device allows drilling to be conducted efficiently and accurately.