Effect of headless compression screw on construct stability for centre of rotation and angulation-based levelling osteotomy. Biomechanical testing in flexion and torsion.

Objective: To compare the biomechanical properties of bone and implant constructs when used for the centre of rotation and angulation (CORA) based levelling osteotomy, with and without implantation of a trans-osteotomy headless compression screw tested under three-point flexural and torsional forces; thereby determining the contribution of a trans-osteotomy headless compression screw with regards to stability of the construct.

Methods: Experimental biomechanical study utilizing 12 pairs of cadaveric canine tibias. Using the CORA based levelling osteotomy (CBLO) procedure, the osteotomy was stabilized with either a standard non-locking CBLO bone plate augmented with a headless compression screw (HCS) or a CBLO bone plate alone.

Prospective risk of fetal death with gastroschisis.

Objective: To evaluate the ongoing risk of intrauterine fetal demise (IUFD) in fetuses with gastroschisis compared to non-anomalous fetuses.

Methods: This was a retrospective cohort study of all births in the United States in 2005-2006, as recorded in the National Center for Health Statistics natality database. Risk of IUFD in fetuses with gastroschisis was compared to non-anomalous fetuses, utilizing total at-risk fetuses as the denominator.

Preference toward future mode of delivery: how do antepartum preferences and prior delivery experience contribute?

Objective: Examine postpartum preferences toward future mode of delivery (MOD), considering recent MOD, antepartum preferences, and demographics.

Study Design: Prospective cohort study where a survey was distributed in outpatient obstetrics clinics to pregnant women over 18 years at 28 weeks gestation or later. Surveys gathered demographics, obstetric history, and preference toward vaginal delivery (VD) versus cesarean delivery (CD).

Racial/ethnic variations in perineal length and association with perineal lacerations: a prospective cohort study.

Objective: To examine the association between race/ethnicity, perineal length and the risk of perineal laceration.

Methods: This is a prospective cohort study of a diverse group of women with singleton gestations in the third trimester of pregnancy. Perineal length was measured and mean values calculated for several racial/ethnic groups.

Coculturing human endometrial epithelial cells and stromal fibroblasts alters cell-specific gene expression and cytokine production.

Objective: To determine the effects of coculturing endometrial epithelial cells (eEC) with paired endometrial stromal fibroblasts (eSF) on cell-specific gene expression and cytokine secretion patterns.

Design: In vitro study.

Setting: University research laboratory.