College of Engineering, Shibaura Institute of Technology, Saitama-shi 337-8570, Japan.
Faculty of Sport Sciences, Waseda University, Tokorozawa-shi 359-1192, Japan.
Int J Environ Res Public Health. 2022 May 10;19(10):5807. doi: 10.3390/ijerph19105807.
Pregnancy-related lumbopelvic pain is a common musculoskeletal problem, and postural changes are believed to be involved in these disorders. However, the lumbopelvic alignment changes in postpartum women remain unclear. This study aimed to determine whether there are changes in lumbopelvic alignment following vaginal or cesarean delivery and when these alignment changes occur after delivery. Thirty postpartum females (PP group) and 20 nulliparous female controls (CTL group) underwent anteroposterior, lateral pelvic, and lower-back X-ray in a static upright position. Digital radiographic images were analyzed and three radiographic variables, the pelvic incidence, pubic symphysis width, and sacral slope, were measured. The pubic symphysis width of the PP group was significantly larger immediately and one month after childbirth (PP group: 6.0 ± 1.1 mm (immediately), 5.0 ± 1.2 mm (one month); CTL group: 3.4 ± 0.4 mm; F = 31.79, p < 0.001). The sacrum slope in the PP group was significantly larger than in the CTL group 1 month after childbirth (PP group: 39.9 ± 6.6°; CTL group: 32.8 ± 5.1°; F = 2.59, p = 0.05). A two-way analysis of variance indicated no statistically significant main effects or interaction effects between the delivery modes on the pubic symphysis width or the sacrum slope. This study suggested that the course of lumbopelvic alignment progressed towards recovery for at least one month, and that these changes were independent of the delivery method.
妊娠相关的腰骶痛是一种常见的肌肉骨骼问题，人们认为姿势变化与这些疾病有关。然而，产后女性的腰骶排列变化尚不清楚。本研究旨在确定阴道分娩或剖宫产分娩后腰骶排列是否发生变化，以及分娩后这些排列变化何时发生。30 名产后女性（PP 组）和 20 名未产妇对照（CTL 组）在静态直立位进行前后位、侧骨盆和下背部 X 线检查。对数字放射图像进行分析，并测量 3 个放射变量，即骨盆入射角、耻骨联合宽度和骶骨倾斜度。PP 组的耻骨联合宽度在分娩后即刻和 1 个月时明显增大（PP 组：6.0 ± 1.1mm（即刻），5.0 ± 1.2mm（1 个月）；CTL 组：3.4 ± 0.4mm；F = 31.79，p < 0.001）。PP 组的骶骨倾斜度在分娩后 1 个月时明显大于 CTL 组（PP 组：39.9 ± 6.6°；CTL 组：32.8 ± 5.1°；F = 2.59，p = 0.05）。双因素方差分析表明，分娩方式对耻骨联合宽度或骶骨倾斜度无统计学显著主效应或交互效应。本研究表明，腰骶排列的变化过程至少在 1 个月内趋于恢复，并且这些变化与分娩方式无关。
