'O' configuration of biliary-enteric drainage: a preventable surgical error

Area of Science:

• Surgical reconstruction techniques
• Gastrointestinal surgery complications
• Biliary tract surgery

Background:

• Surgical errors in Roux limb reconstruction are infrequently documented.
• Acute proximal jejunal obstruction can occur post-hepaticojejunostomy.
• The 'O' sign on barium studies indicates a specific anatomical anomaly.

Purpose of the Study:

• To report a rare surgical error in Roux limb reconstruction.
• To describe the diagnostic findings of the 'O' sign.
• To propose a classification system for such errors and emphasize prevention.

Main Methods:

• Case report of a young male with post-hepaticojejunostomy jejunal obstruction.
• Diagnostic imaging using barium study to identify the 'O' sign.
• Surgical intervention involving resection and Roux-en-Y reconstruction.
• Literature review and development of a classification system.

Main Results:

• A rare surgical error resulted in the alimentary limb joining onto itself, creating an 'O' loop complex.
• The patient presented with acute proximal jejunal obstruction.
• Successful surgical correction and reconstruction led to an uneventful recovery.
• A novel classification system for these errors was proposed.

Conclusions:

• Surgical errors in Roux limb reconstruction, though rare, can cause significant complications.
• The 'O' sign is a key diagnostic indicator of this specific error.
• Preventing such complications and understanding their classification are crucial for surgical practice.