Stein Tamara A, Kaur Gurpreet, Summers Aimee, Larson Kindra A, DeLancey John O L
Pelvic Floor Research Group, University of Michigan, Ann Arbor, MI; Division of Anatomical Science, Office of Medical Eduction, University of Michigan, Ann Arbor, MI, USA.
Am J Obstet Gynecol. 2009 Mar;200(3):241.e1-5. doi: 10.1016/j.ajog.2008.10.040.
We sought to compare bony pelvis dimensions at the level of pelvic support in women with and without pelvic organ prolapse (POP).
Pelvic floor dimensions of 42 white women with POP > 1 cm beyond the hymen were compared with 42 age- and parity-matched women with normal support. Bony landmarks relevant to connective tissue and levator attachments were identified on magnetic resonance imaging. Dimensions were independently measured by 2 examiners and averaged for each subject.
Measurements (in centimeters) for patients and control subjects were as follows: interspinous diameter, 11.2 +/- 0.8 versus 11.1 +/- 0.7, P = .19; anterior-posterior outlet diameter, 11.7 +/- 0.7 versus 11.7 +/- 0.8, P = .71; pubic symphysis to ischial spine left, 9.5 +/- 0.5 versus 9.5 +/- 0.4, P = .91; pubic symphysis to ischial spine right, 9.5 +/- 0.4 versus 9.5 +/- 0.5, P = .81; sacrococcygeal junction to ischial spine left, 7.0 +/- 0.6 versus 7.0 +/- 0.5, P = .54; and sacrococcygeal junction to ischial spine right, 7.0 +/- 0.6 versus 6.9 +/- 0.4, P = .32.
Bony pelvis dimensions are similar at the level of the muscular pelvic floor in white women with and without POP.
我们试图比较有和没有盆腔器官脱垂（POP）的女性在盆腔支持水平的骨盆骨骼尺寸。
将42名处女膜外POP超过1厘米的白人女性的盆底尺寸与42名年龄和产次匹配、盆底支持正常的女性进行比较。在磁共振成像上识别与结缔组织和提肌附着相关的骨性标志。尺寸由两名检查者独立测量，并计算每个受试者的平均值。
患者和对照受试者的测量值（厘米）如下：棘间径，11.2±0.8对11.1±0.7，P = 0.19；前后出口径，11.7±0.7对11.7±0.8，P = 0.71；耻骨联合至左侧坐骨棘，9.5±0.5对9.5±0.4，P = 0.91；耻骨联合至右侧坐骨棘，9.5±0.4对9.5±0.5，P = 0.81；骶尾关节至左侧坐骨棘，7.0±0.6对7.0±0.5，P = 0.54；骶尾关节至右侧坐骨棘，7.0±0.6对6.9±0.4，P = 0.32。
有和没有POP的白人女性在肌肉盆底水平的骨盆骨骼尺寸相似。
