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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Optimal indicators for identification of compensatory sagittal balance in patients with degenerative disc disease

Fig. 1

a Asymptomatic adult with sagittal balance: LL, SS, PT, SVA are in the normal range and the pelvis is in the neutral position; b DDD patients with compensatory sagittal balance: LL decreases causing SVA to move forward, the pelvis rotates backwards, SS decreases and PT increases, the femoral head is forward, the sacrum and the spine are backward. This causes SVA to stay behind the perpendicular line passing through the middle of the femoral head. (LL, lumbar lordosis; SS, sacral slope; PT, pelvic tilt; SVA, sagittal vertical axis; DDD, degenerative disc diseases)

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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