Sagittal spinopelvic alignment and body mass index in patients with degenerative spondylolisthesis.

摘要: The sagittal orientation and osteoarthritis of facet joints, paravertebral muscular dystrophy loss ligament strength represent mechanical factors leading to degenerative spondylolisthesis. importance spinopelvic imbalance has been described for the developmental spondylolisthesis with isthmic lysis. However, it remains unclear if these mechanisms play a role in pathogenesis purpose this study was analyze alignment, body mass index (BMI) joint degeneration A group 49 patients L4–L5 (12 males, 37 females, average age 65.9 years) compared reference 77 low back pain without (41 36 65.5 years). patient’s height weight were assessed calculate BMI. following parameters measured on lateral lumbar radiographs standing position: L1–S1 lordosis, segmental lordosis from L1–L2 L5–S1, pelvic tilt, incidence sacral slope. presence joints determined transversal plane computed tomography (CT). BMI significantly higher (P = 0.030) (28.2 vs. 24.8) 71.4% had BMI > 25. radiographic analysis showed significant increase spondylolisthesis: tilt (25.6° 21.0°; P = 0.046), slope (42.3° 33.4°; P = 0.002), (66.2° 54.2°; P = 0.001), (57.2° 49.6°; P = 0.045). (P < 0.05) at L2–L3 CT (36.5° 44.4°; P = 0.001). anatomic pelvis high seems predisposing factor Although keeps comparable group, suggests posterior as compensation mechanism incidence. detailed revealed that increased levels above spondylolisthesis, which might subsequently stress joints. association overweight relatively vertical inclination S1 endplate is an anterior translation L4 L5. Furthermore, sagittally oriented do not retain vertebral displacement.