[Hot spots of recent research in bone lengthening].

Bone lengthening technique is one of the core surgical technique for skeletal lengthening and reconstruction. It is widely used in the treatment of nonunion, segmental bone defect, bone infection, congenital or post-traumatic limb length differences, and hand-foot deformity correction. Until today, the surgical techniques and devices of bone lengthening are improving over time, and it is to improve the quality of treatment and reduce complications. However, the bone lengthening technique is different from the treatment for other orthopedic diseases, and it has the following feature, including requiring multiple steps, longer treatment course, and application of external fixator. This article will summarize the hot research in the field of bone lengthening treatment in recent years and provide reference for future clinical treatment.