ArticleInternational journal of urology : official journal of the Japanese Urological Association2026
Visceral Fat Volume and Inguinal Hernia After Robot-Assisted Radical Prostatectomy: A Three-Dimensional CT Analysis.
Article in International journal of urology : official journal of the Japanese Urological Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesLow body mass index has been reported as a risk factor for inguinal hernia after robot-assisted radical prostatectomy, but whether this association reflects reduced fat mass or reduced muscle mass remains unclear. This study aimed to determine which three-dimensional computed tomography-derived body composition parameter is associated with postoperative inguinal hernia.
methodsWe retrospectively analyzed 280 patients who underwent robot-assisted radical prostatectomy between February 2016 and January 2024 and had available preoperative non-contrast computed tomography images. Visceral fat volume, subcutaneous fat volume, and psoas muscle volume were quantified using three-dimensional analysis. Cox proportional hazards models were used to evaluate factors associated with postoperative inguinal hernia.
resultsInguinal hernia occurred in 23 patients (8%). Patients who developed inguinal hernia had lower BMI, visceral fat volume, and subcutaneous fat volume than those who did not, whereas psoas muscle volume did not differ significantly. In the multivariable visceral fat volume model, greater visceral fat volume was associated with a lower risk of inguinal hernia (HR per 1 000-cm
conclusionsLower visceral fat volume was associated with a higher risk of inguinal hernia after robot-assisted radical prostatectomy. These findings may provide insight into the body composition factors relevant to the previously reported association between low body mass index and postoperative inguinal hernia.
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