Fig. 3.

Post-osteotomy mechanical axis (MA) values on navigation and weight bearing radiographs. Triangles indicate post-osteotomy MA values on navigation in the unloaded position; lines indicate dynamic range during application of varus and valgus force. Squares indicate postoperative MA values during weight-bearing on radiographs. In total, eight knees exhibited a difference of >2° between radiography- and navigation-derived values in the unloaded position (radiographic values are denoted by open squares).