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Acetabular Fractures

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Edited by Cameron Egan and Jeffrey “Spud” Olson - 7/1/2021

Descriptors

Anterior column fractures - anterior ilium, anterior wall of the acetabulum, iliopectineal eminence, superior pubic rami

Posterior column fractures - quadrilateral surface, posterior wall, ischial tuberosity, greater/lesser sciatic notches

Exam Pearls

High energy injuries - see ATLS protocol

Associated lower extremity injury and systemic injuries are common

Thorough lower extremity neurovascular exam in ED

Workup

Radiographs: AP pelvis, Judet views

> Spur sign - seen on obturator oblique - associated both column fracture
> Gull sign - seen on iliac oblique - posterior wall fracture

Other imaging: CT pelvis

Labs: Pre-operative labs

Other: None

Management

Need for acute intervention: Yes, immobilization without reduction. Skeletal traction is indicated in fractures with intra-articular loose bodies, irreducible fracture-dislocations

Weight-bearing and range of motion: Non-weight bearing if unstable fracture pattern.

Type of immobilization: Skeletal traction if indicated

Admission or discharge status: If isolated injury - Admit to ortho. If poly-trauma - generally admit to general surgery service

Anticoagulation: Lovenox 40mg daily

Antibiotics: Open fracture prophylaxis if open fracture

Surgical Indications

Absolute: Displacement of weight-bearing surface without secondary congruence, intra-articular loose bodies, irreducible fracture-dislocation, displacement with exam under anesthesia

Relative: Fracture displacement

Not an indication: Minimal displacement, secondary congruence