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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

Fig. 1

Low-density, Middle-density and High-density screw constructs. a: A patient with Lenke 1 AIS received posterior fusion of T4-L1 with a low-density construct (Anchor density = 1.20) of pedicle screw instrumentation. b: A patient with Lenke 1 AIS received posterior fusion of T4-L1 with a middle-density construct (Anchor density = 1.60) of pedicle screw instrumentation. c: A patient with Lenke 1 AIS received posterior fusion of T4-T12 with a high-density construct (Anchor density = 1.78) of pedicle screw instrumentation

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