Prospective cohort study of patients with midline ventral incisional hernia with a range of hernia morphology who plan to undergo open retromuscular VHR. Study groups: Study groups are selected across a range of morphology and based on factors known or suspected to affect the ability to achieve fascial closure. Control groups: The study plans to enlist 5 volunteers with no incisional hernia or prior laparotomy to establish internal baseline SWE values and interrater reliability. The study will also plan to recruit 5 patients undergoing primary laparotomy in order to correlate SWE findings with closure tension.
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Determine Elasticity of Abdominal Wall Muscles (Specific Aim 1)
Timeframe: Study participation ends after surgery
Correlate Elastography measurements with MFR (Specific Aim 2)
Timeframe: Study participation ends after surgery
Correlate SWE Assessment to Tensiometer (Specific Aim 3)
Timeframe: Study participation ends after surgery