The Calne classification of hepatic trauma is replaced in modern practice by which scoring system used in ATLS and research?

• A Abbreviated Injury Scale (AIS)
• B Injury Severity Score (ISS)
• C AAST (American Association for Surgery of Trauma) Organ Injury Scale ✓
• D Revised Trauma Score (RTS)

Explanation

The AAST Organ Injury Scale (OIS) is the universally used grading system for solid organ injuries (liver, spleen, kidney) in trauma, grading injuries from I (minor) to VI (irreparable/vascular avulsion). Liver grades I-III are typically managed non-operatively in hemodynamically stable patients; grades IV-V may require angioembolization or surgery. The ISS and RTS are composite trauma scoring tools but do not grade individual organ injuries. The Calne classification is largely historical.

Reference: Bailey & Love's Short Practice of Surgery, 27th ed.

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