Advances in 3D correction of adolescent scoliosis: The superiority of scoliocorrector fatma-UI in rotational realignment

Figure 2 The step-by-step process of the application of scoliocorrector fatma-UI during the operation. At first, the upper instrumented vertebra (UIV) to the lower instrumented vertebra (LIV) of the patient's spine was exposed, and screws were inserted. If there were more than three subsequent vertebrae to UIV or LIV, additional screws were inserted until there were no more than three. Secondly, five pulleys were fixed on the screws, and the correction board was placed on the surgical table. After screws and housings were installed on the correction board, five wires were fastened to the screws to form movable pulleys. Finally, the treatment was achieved by alternately rotating the correction screws. LIV: Lower instrumented vertebra; UIV: Upper instrumented vertebra.