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Abdominal Regions and Quadrants01:19

Abdominal Regions and Quadrants

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To promote clear communication, for instance, about the location of a patient's abdominal pain or a suspicious mass, anatomists and clinicians typically use imaginary lines to categorize the abdominopelvic cavity into either four quadrants or nine regions to identify organs in the cavity.
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four...
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Do pelvic dimensions predict recurrence in inguinal hernia? A matched case-control analysis.

Mert Guler1, Kutay Iscen2, Baris Ozkan2

  • 1Department of General Surgery, Gaziosmanpasa Training and Research Hospital, Gaziosmanpasa, Istanbul, Turkey. mertguler23@gmail.com.

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|January 6, 2026
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Summary

Pelvic morphology, specifically Ami's line, is linked to inguinal hernia presence but not recurrence. Heavy labor history is a key factor in hernia recurrence after surgery.

Keywords:
Ami’s lineHernia recurrenceInguinal herniaPelvic morphometryRadioievitch angle

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Area of Science:

  • Anatomy
  • Radiology
  • Surgical Outcomes

Background:

  • Pelvic morphology is implicated in inguinal hernia development.
  • Its role in post-surgical recurrence is not well understood.

Purpose of the Study:

  • To investigate the association between pelvic morphometric parameters and inguinal hernia presence and recurrence.
  • To identify predictors of inguinal hernia and its recurrence.

Main Methods:

  • Retrospective case-control study of 203 male participants (recurrent hernia, primary hernia, controls).
  • Pelvic morphometric parameters (Radioievitch angle, Ami's line) measured from radiographs.
  • Logistic regression and ROC curve analyses performed.

Main Results:

  • Ami's line and Radioievitch angle were significantly larger in hernia patients vs. controls.
  • Ami's line showed high diagnostic performance for hernia presence (AUC=0.772).
  • No significant difference in pelvic parameters between primary and recurrent hernia groups; heavy labor history predicted recurrence.

Conclusions:

  • Pelvic bone morphology, especially Ami's line length, is associated with inguinal hernia presence.
  • Pelvic features do not predict hernia recurrence; occupational factors are more relevant.
  • This suggests pelvic configuration influences susceptibility, while strain impacts recurrence.