Orthopedic trauma priorities

💃 Trauma's First Dance

📌 Mnemonic: "Life over Limb." The initial priority is always the patient's systemic stability, not the orthopedic injury. Follow Advanced Trauma Life Support (ATLS) protocols before addressing fractures.

• Immediate Orthopedic Threats:
  • Hemorrhage: Unstable pelvic fractures, multiple long bone fractures.
  • Vascular Injury: Pulseless limb (e.g., knee dislocation).
  • Compartment Syndrome: Irreversible damage in 4-6 hrs.
  • Open Fractures: High infection risk.

⭐ A pelvic binder is a critical initial step for suspected unstable pelvic fractures to control life-threatening hemorrhage before transfer to the OR.

🚩 Diagnosis - Spotting Red Flags

• Compartment Syndrome: ⚠️ Pain out of proportion, pain with passive stretch, paresthesias.
  • Measure pressures: ΔP (Diastolic BP - Compartment P) < 30 mmHg is diagnostic.
• Vascular Injury:
  • Hard Signs: Absent pulses, expanding hematoma, pulsatile bleeding, bruit/thrill → Surgical exploration.
  • Check Ankle-Brachial Index (ABI); < 0.9 is abnormal.
• Open Fracture: Bone exposure through skin. High infection risk.
• Nerve Injury: Document specific motor/sensory deficits post-injury and post-reduction.
• Cauda Equina Syndrome: Saddle anesthesia, bowel/bladder dysfunction.

⭐ Pearl: Pulselessness is a LATE and often irreversible sign of compartment syndrome. The earliest and most reliable signs are severe pain and paresthesias.

🛠️ Management - Damage Control Crew

• Damage Control Orthopedics (DCO): A staged approach for polytrauma patients too unstable for definitive surgery. Focuses on rapid, temporary stabilization to prioritize life over limb.

• Indications:

  • Hemodynamic instability (shock, ongoing resuscitation).
  • ⚠️ Lethal Triad: Coagulopathy, Hypothermia (<35°C), Acidosis (pH <7.2).
  • High Injury Severity Score (ISS > 20).
  • Associated severe injuries (head, chest, abdomen).

• Procedure:

  • Phase 1 (OR): Rapid external fixation, fasciotomies, debridement.
  • Phase 2 (ICU): Physiologic restoration; correct the lethal triad.
  • Phase 3 (OR): Definitive fixation (e.g., IM nail) once stable, typically 5-14 days later.

⭐ DCO mitigates the "second hit" phenomenon, where early major surgery exacerbates systemic inflammation, leading to an increased risk of ARDS and multi-organ failure.

💀 Complications - Ortho's Worst Foes

• Compartment Syndrome: ⚠️ Orthopedic emergency!

  • 📌 6 P's: Pain (out of proportion), Pallor, Paresthesias, Pulselessness (late!), Paralysis, Poikilothermia.
  • Dx: Compartment pressure > 30 mmHg or Delta pressure $ΔP < 30$ mmHg (Diastolic BP - Compartment Pressure).
  • Tx: Emergent fasciotomy.

• Fat Embolism Syndrome (FES):

  • Triad: Respiratory distress, neurologic dysfunction, petechial rash.
  • Occurs 24-72 hrs post-long bone/pelvic fracture.

• Avascular Necrosis (AVN):

  • Common sites: Femoral head (femoral neck fx), scaphoid.

• Late Complications: Osteomyelitis, nonunion/malunion, DVT/PE.

⭐ Pearl: Pain out of proportion to injury is the earliest and most sensitive sign of compartment syndrome. Do not wait for pulselessness.

⚡ Biggest Takeaways

• Always follow ATLS (ABCDEs); life-threatening injuries take precedence over any orthopedic issue.
• Open fractures require urgent irrigation, debridement, and IV antibiotics to prevent osteomyelitis.
• Suspect compartment syndrome with pain out of proportion; treat with emergent fasciotomy.
• Vascular injury (e.g., knee dislocation) requires immediate reduction and vascular assessment.
• Unstable pelvic fractures cause massive hemorrhage; stabilize with a pelvic binder.
• Cauda equina syndrome (saddle anesthesia, incontinence) is a neurosurgical emergency.