›Zone III occlusion as bridge in patients in extremis
›Promising but not yet independently shown to improve survival
›Requires endovascular expertise
›Bridge to definitive hemorrhage control
›Massive transfusion protocol
›Ratio 1:1:1 pRBC to FFP to platelets
›Activates for SBP < 90 mmHg or HR > 120 bpm with mechanism
›Reassess every 30 minutes
›Whole blood
›Alternative when available
›Emerging evidence for improved outcomes
›Tranexamic acid (TXA)
›Antifibrinolytic adjunct for hemorrhagic shock
›1 g IV over 10 minutes as loading dose
›Followed by 1 g IV over 8 hours
›Administer within 3 hours of injury for maximum benefit
›CRASH-2 trial evidence for trauma hemorrhage
›Calcium replacement
›Ionized calcium target > 1.1 mmol/l
›Give 1 g calcium chloride IV per 4 units pRBC transfused
›Citrate chelation from massive transfusion depletes calcium
Definitive surgical fixation
›Stable fracture patterns: nonoperative
›APC-I and LC-I
›Weight bearing as tolerated
›Functional rehabilitation
›Orthopedic follow-up at 2, 6, and 12 weeks
›Unstable fracture patterns: surgical fixation
›APC-II/III: pubic symphysis plating for diastasis > 2.5 cm
›Percutaneous iliosacral screws for posterior ring
›LC-II/III: posterior ring stabilization
›Vertical shear: spinopelvic fixation for vertically unstable sacral fractures
›Timing
›Hemodynamically stable: early fixation within 24 hours acceptable
›Physiologically deranged polytrauma: delay until after day 4
›Pharmacologic prophylaxis
›Enoxaparin 30 mg subcutaneous BID
›Initiate when hemostasis is achieved
›LMWH standard per Western Trauma Association guidelines
›Aspirin 81 mg BID
›PREVENT CLOT trial: noninferior to LMWH for prevention of death from any cause after pelvic and extremity fractures
›Alternative when anticoagulation risk is higher
›Avoid anticoagulants until active hemorrhage is controlled
›Mechanical prophylaxis
›Sequential compression devices when pharmacologic prophylaxis contraindicated
›Apply to upper extremities if lower extremity injury
›Extended prophylaxis
›Consider up to 4 weeks post-discharge in high-risk patients
›Proximal DVT rate up to 34%; PE rate up to 12%
›Multimodal analgesia approach
›Acetaminophen 1 g IV or oral every 6 hours
›Baseline analgesia, opioid sparing
›Regional nerve blocks
›Fascia iliaca block for hip and anterior pelvic pain
›Consult acute pain or anesthesia service
›Caution with NSAIDs in acute setting
›Bleeding risk with platelet inhibition
›Renal perfusion compromise in shock states
›Opioids
›Use judiciously; avoid excessive doses masking hemodynamic changes
›Titrate to effect with respiratory monitoring
Associated injury management
›Genitourinary injuries
›Urology consult if Foley cannot be placed or urethral injury suspected
›Suprapubic catheter if urethral disruption confirmed
›Cystogram for bladder injury evaluation
›Open fracture management
›Fecal diversion (colostomy) for open fractures with rectal or perineal wounds
›Mortality 20-24%; aggressive wound management essential
›Wound irrigation and debridement in OR
›Antibiotics per open fracture protocol
›Morel-Lavallee lesion
›Closed degloving injury requiring drainage
›Wound care and surgical debridement if infected