The internal elliptical ring tooth osteotomy of tibia is carried out after the marrow expansion,which not only makes the biomechanical performance of the osteotomy fracture line better,but also effectively avoids the tissue damage,incision infection and its complication...MORE The internal elliptical ring tooth osteotomy of tibia is carried out after the marrow expansion,which not only makes the biomechanical performance of the osteotomy fracture line better,but also effectively avoids the tissue damage,incision infection and its complications caused by the large incision osteotomy through the...