Fig. 4From: Excellent short-term results of dome-shaped high tibial osteotomy combined with all-inside anterior cruciate ligament reconstructiona A spreader was inserted into medial gap and performed the adequate correction. b An extramedullary rod to correct the alignment was set from the center of the femoral head to the center of ankle joint. An adequate varus correction was performed as an extramedullary rod pass through the lateral thirds of the tibial plateau. The gap width (mm) was measured by a spreaderBack to article page