| PrefaceThe female pelvic floor dysfunction (FPFD) is a group of conditions that include pelvic organ prolapsed (POP) and stress urinary incontinence (SUI). It is a common group of diseases severely influencing women's life quality. Though its etiology is uncertain, it is considered to be associated with gestation, delivery, obesity, medication, estrogen shortage, pelvic floor surgery, nerve damages, etc. [1]. Some related research demonstrated that a great pelvic incidence (>62°) was a risk factor for POP [2],and Mattox et al.[3] found that abnormal spinal curvature was a risk factor for development of POP. However, it is not unclear whether FPFD is associated with the pelvic morphology.PurposeThe research aimed to assess the diffrences between the pelvic morphology and female pelvic floor dysfunction (FPFD) by measuring the key pelvic outlet and inlet parameters in order to verify whether they can be predictive factors for FPFD.Materials and MethodsIn the case-control study of 119 women with FPFD and 203 controls without FPFD, the key pelvic outlet and inlet diameters (the anteroposterior diameter of the pelvic inlet and the transverse diameter of the pelvic outlet) were measured. The relationship between these key diameters and FPFD was assessed regarding pertinent factors.ResultsIn those with FPFD compared with those with myoma, transverse outlet was significantly larger (9.53cm vs. 8.71cm, P< 0.01) while anterior-posterior diameter of pelvic inlet plane had no significant differences (11.42cm vs. 11.15cm, P> 0.05). By Binary Logistic Regression Analysis, we saw that large transverse outlet was one of the risk factors of PFPD. ConclusionThe transverse diameter of the pelvic outlet is closely associated with FPFD and may be its risk factor. A large transverse diameter of the pelvic inlet may be an early predictive factor for FPFD when the critical value may likely be set to 9.5 cm.
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