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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Estimation of the ideal correction of lumbar lordosis to prevent reoperation for symptomatic adjacent segment disease after lumbar fusion in older people

Fig. 1

Methods for measuring the pelvic parameters. Lumbar lordosis (LL): angle between the superior endplate line of L1 and S1. Pelvic incidence (PI): angle between the perpendicular to the sacral plate at its midpoint and the line connecting this point to the middle axis of the femoral heads. Sacral slope (SS): angle between the superior plate of S1 and a horizontal line. Pelvic tilt (PT) = PI-SS

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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