Even if the fracture is overlapped or misaligned, the fracture can heal completely as long as the displacement is within 2 cm, but it takes longer to heal. If the overlap or misalignment is more than 2 cm, especially in the lower limb of the femoral stem, tibia and fibula, the overlap or misalignment is more than 2 cm, the affected limb will be shorter than the healthy limb, and the compensation of the pelvis cannot be fully compensated, so the patient will walk with a limp after the bone grows. If the fracture cannot be corrected, the overlap and misalignment within 2cm can also grow, so there is no need to worry.