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Treatment strategy for acute blunt traumatic abdominal wall injury: a single-center retrospective study in Korea
Gun Woo Kim1, Chang-Yeon Jung1, Sung Hoon Cho1
1Department of Surgery, Trauma Center, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
Purpose:
Traumatic abdominal wall hernia, a rare condition resulting from blunt trauma, is characterized by disruption of the abdominal wall musculature and fascia without skin penetration. Given its rarity, standardized treatment guidelines are lacking, and the necessity for immediate surgery remains debated. This study examines high-energy posterolateral abdominal wall injuries (AWI), which pose significant management challenges due to their anatomical complexity and high recurrence risk.
Methods:
We retrospectively reviewed records of 44 adults with grade III-VI AWI treated between 2013 and 2023 at a level I trauma center. Patients were categorized into emergency repair or delayed management groups based on the initial treatment strategy, with injuries anatomically classified as anterior, lateral, or posterolateral. Nonoperative management (NOM) was limited to patients without herniation on index imaging and entailed close observation with regular follow-up imaging.
Results:
AWI was identified in 44 of 83,532 patients (0.05%) with blunt trauma. Anatomically, 4 cases (9.1%) were anterior, 17 (38.6%) were lateral, and 23 (52.3%) were posterolateral. Three patients (6.8%) were classified as grade III injury, 16 (36.4%) as grade IV, 24 (54.6%) as grade V, and 1 (2.3%) as grade VI. Emergency repair was performed in 26 patients (59.1%), whereas 18 (40.9%) initially received delayed management. In the latter group, 8 of 18 patients (44.4%) were judged to require delayed repair, of whom six proceeded to surgery. Among 10 NOM patients with indeterminate muscle-layer integrity on initial imaging due to hematoma or tissue injury, follow-up revealed delayed hernia development in three, while seven had resolved hematoma, confirming wall integrity.
Conclusions:
In hemodynamically stable patients with traumatic posterolateral AWI without herniation, NOM with close monitoring and delayed repair for subsequent hernia appears safe and effective as an alternative to immediate surgery. Management should be tailored to injury location and patient condition. These findings inform the management timing and approach for this rare, challenging injury pattern.
