Preoperative Factors That Predict the Need to Morcellate in Total Laparoscopic Hysterectomy

Morgan Wolfe, Scott Biest, Nhial Tutlam, Candice Woolfolk, Brooke Winner

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Study Objective To determine which preoperative factors best predict the need for uterine morcellation at the time of total laparoscopic hysterectomy (TLH) and to identify cut-offs that can help guide clinical decision-making. Design Retrospective cohort (Canadian Task Force classification II). Setting Tertiary care center. Patients Women (n = 420) who underwent TLH between July 2012 and June 2015: 223 cases without and 197 cases with morcellation. Interventions Laparoscopic hysterectomies with either laparoscopic power, vaginal, or open morcellation via mini-laparotomy were analyzed. Measurements and Main Results Preoperative factors assessed included uterine volume, cross-sectional area, length, size of largest leiomyoma, and bimanual exam. Receiver operator curves (ROC) were used to establish cut-offs that maximized sensitivity and specificity for each factor. Bivariate and multivariate Poisson regression analyses were used to calculate relative risks associated with these objective cut-offs. ROC curves demonstrated maximized sensitivities and specificities with a cross-sectional area of 48.6 cm 2 , largest leiomyoma dimension of 4.4 cm, bimanual exam of 11.5 weeks, and uterine volume of 262 mL. Multivariate Poisson regression analysis revealed that the strongest predictors of morcellation were cross-sectional area (adjusted relative risk, 2.94; 95% confidence interval, 1.20–7.19), largest leiomyoma diameter (adjusted relative risk, 2.06; 95% confidence interval, 1.24–3.41), and bimanual exam (adjusted relative risk, 1.88; 95% confidence interval, 1.05–3.37). Conclusion Uterine cross-sectional area, largest leiomyoma dimension, and uterine size on bimanual exam can all be used to predict the need to morcellate at the time of TLH.

Original languageEnglish
Pages (from-to)158-162
Number of pages5
JournalJournal of Minimally Invasive Gynecology
Issue number1
StatePublished - Jan 2018


  • Laparoscopic hysterectomy
  • Morcellation
  • Preoperative factors

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