Abdomen & Pelvic trauma Flashcards
What is the superior boundary of the peritoneum?
Lower thorax
What are the components of the anterior abdomen?
- Costal margins superiorly
- Inguinal ligaments
- Symphysis pubis inferiorly
- Anterior axillary lines laterally
What are the boundaries of the thoracoabdomen?
- The area inferior to the nipple line anteriorly
- Infrascapular line posteriorly
- Superior to the costal margins
What are the boundaries of the flanks?
- Between the anterior and posterior axillary lines
- Extends from the 6th intercostal space to the iliac crest
Components of the restroperitoneal space?
- Abdominal aorta
- Inferior vena cava
- Duodenum
- Pancrease
- Kidneys
- Ureters
- Posterior aspect of the ascending colon
The retroperitoneal space is not sampled by what investigation?
DPL
Primary and secondary injuries associated with blunt trauma to the abdomen?
- Injury to solid organs with harmorrhage
- Bowel leak with peritonitis
Frequently injured organs with blunt trauma ?
- Spleen (40-55%)
- Liver (35-45%)
- Small bowel (5-10%)
- Retroperitoneal haematoma (15%)
Frequency of injury with penetrating injury ?
- Liver (40%)
- Small bowel (30%)
- Diaphragm (20%)
- Colon (15%)
Classification of pelvic fractures ?
- AP compression (15-20%)
- Lateral compression (60-70%)
- Vertical shear (5-15%)
- Combined mechanism
Components of AP compression pelvic injury?
- External rotation of the hemipelvis
- Separation of the symphysis pubis
- Tearing of the posterior ligamentous complex
- Widening of the disrupted pelvic ring
- Tearing of the posterior venous plexus & branches of the internal iliac artery
Components of lateral compression pelvic injury?
- Hemipelvis rotates internally
- Pelvic volume is reduced
- Tension on the pelvic vascular structures is reduced
- Potential injury to bladder and urethra
Injury resulting from vertical displacement of the sacroiliac joint ?
- Disruption of iliac vasculature
- Severe haemorrhage
Components of vertical shearing pelvic injury?
- Disrupts the sacrospinous & sacrotuberous ligaments
- Major pelvic instability
- Occurs in falls > 12 feet
Mortality of patients with all types of pelvic fracture ?
5-30%
Mortality in patients with closed pelvic fracture and hypotension?
10-42%
Mortality in patients with open pelvic fracture ?
50%
Boundaries of the anterior abdomen?
- Superior - Costal margins
- Inferior - Inguinal ligaments & symphysis pubis
- Lateral - Anterior axillary line
Organs at risk of injury in the anterior abdomen?
All solid and hollow viscera
Boundaries of the thoraco-abdomen?
- Superior - Nipple line anteriorly & infrascapular posteriorly
- Inferior - Costal margins
Organs at risk of injury in the thoraco-abdomen?
- Liver
- Spleen
- Diaphragm
- Stomach
Boundaries of the flanks?
Superior - 6th intercostal space
Inferior - Iliac crest
- Anterior - Anterior axillary line
- Posterior - Posterior axillary line
Organs at risk of injury in the flanks?
- Hollow viscera
- Liver
- Spleen
- Kidney
- Diaphragm
- Stomach
Boundaries of the back?
Superior - Tip of scapula
- Inferior - Iliac crest
- Lateral - Posterior axillary lines
- Posterior thoraco-abdomen & restroperitoneal space