Fig. 1

Close reduction minimally invasive surgery procedures. A Demonstration of the interaction forces acting on the distal tibia and supracondylar femur. B Percutaneous reduction of depressed fragments with the top rod. C The insertion of autogenous bone graft to support the articular surface. D The position of fracture reduction and internal fixation was confirmed to be satisfactory. E After fluoroscopic reduction and internal fixation, arthroscopy showed that the medial and lateral articular surfaces were almost anatomically reduced. F Seven minimal incisions after the operation, four for percutaneous insertion of plates, one for indirect reduction of depressed fragments, and two for arthroscopic inspection