Fracture classification and management principles

Fracture classification and management principles

Fracture classification and management principles

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🦴 Pathology & Classification - The Bone-Break Blueprint

A fracture is a break in the continuity of bone. Key descriptors include location, pattern, displacement, and skin integrity (open vs. closed).

  • Common Fracture Patterns:

  • Open Fractures (Gustilo-Anderson Classification): | Type | Wound Size | Injury Characteristics | | :--- | :--- | :--- | | I | < 1 cm | Clean, minimal soft tissue damage | | II | > 1 cm | Moderate soft tissue damage, no flap needed | | IIIA | > 10 cm | High energy, adequate soft tissue coverage | | IIIB | > 10 cm | Periosteal stripping, requires flap coverage | | IIIC | > 10 cm | Associated arterial injury requiring repair |* Pediatric Physeal Fractures (Salter-Harris): Salter-Harris fracture classification with SALTER mnemonic 📌 SALTER Mnemonic: Straight, Above, Lower, Through, ERasure/cRush.

⭐ Salter-Harris Type II (fracture through physis and metaphysis) is the most common. Type V has the worst prognosis due to risk of growth arrest.

🦴 Radiology - Reading the Cracks

  • Rule of Twos: A fundamental principle for adequate imaging.
    • 2 Views: At least two orthogonal views (e.g., AP & Lateral at $90^\circ$).
    • 2 Joints: Image the joint above and below the suspected fracture.
    • 2 Sides: Compare with the contralateral side, especially in pediatrics.
    • 2 Occasions: Repeat imaging if high clinical suspicion persists despite negative initial X-rays.

Distal radius fracture with displacement and angulation

  • Describing Fractures (The 4 A's):
    • Alignment: Relationship of the longitudinal axes of fracture fragments.
    • Angulation: Deviation of the distal fragment from the normal axis.
    • Apposition: Percentage of fracture surface contact.
    • Displacement: Shift of the distal fragment relative to the proximal.

⭐ A negative X-ray does not rule out a fracture. High-risk injuries (e.g., scaphoid, femoral neck) with negative initial films warrant further imaging (CT/MRI) or repeat X-rays in 7-14 days.

  • Special Views: Often required for anatomically complex areas (e.g., scaphoid view, ankle mortise view).

🧩 Management - Putting Pieces Together

  • Initial Fracture Management Flowchart:
  • Immobilization:
    • Temporary (Acute): Splint - Accommodates swelling; non-circumferential.
    • Definitive: Cast - Circumferential; applied after acute swelling subsides.

Application of a short leg splint

  • Indications for ORIF (Open Reduction Internal Fixation):
    • Open fractures
    • Intra-articular displacement (>2 mm)
    • Failed closed reduction / Unstable fractures
    • Pathologic fractures
    • Nonunion / Malunion
    • Associated neurovascular injury

Compartment Syndrome: A surgical emergency! Suspect with pain out of proportion to injury, pain on passive stretch, and paresthesias. Pulselessness is a late sign.

🤕 Complications - When Healing Goes Wrong

Early (Hours to Days)Late (Weeks to Years)
* Neurovascular Injury: Direct damage* Malunion: Heals in wrong position
* Compartment Syndrome: ↑ Pressure* Nonunion: Fails to heal (>6-9 mo)
- 📌 6 P's: Pain, Pallor, Paresthesia, Pulselessness, Paralysis, Poikilothermia* Delayed Union: Heals too slowly
- ⚠️ Dx: $\Delta P$ < 20-30 mmHg* Avascular Necrosis (AVN)
* Fat Embolism: Triad (neuro, resp, petechiae)* Post-traumatic Arthritis: Joint damage
* DVT/PE: Immobility risk
* Infection: Open fx, surgery

⚡ Biggest Takeaways

  • Open fractures are surgical emergencies requiring immediate irrigation, debridement (I&D), and IV antibiotics.
  • Always assess distal neurovascular status before and after reduction; any compromise is an emergency.
  • Suspect compartment syndrome with pain out of proportion to injury; treat emergently with fasciotomy.
  • Salter-Harris fractures involve the pediatric physis (growth plate); Type II is the most common.
  • Management principles are Reduction (alignment), Immobilization (stabilization), and Rehabilitation.

Practice Questions: Fracture classification and management principles

Test your understanding with these related questions

A 36-year-old male is taken to the emergency room after jumping from a building. Bilateral fractures to the femur were stabilized at the scene by emergency medical technicians. The patient is lucid upon questioning and his vitals are stable. Pain only at his hips was elicited. Cervical exam was not performed. What is the best imaging study for this patient?

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Flashcards: Fracture classification and management principles

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Increased pressure within a fascial compartment of a limb experiencing Compartment Syndrome is defined by a fascial compartment pressure to diastolic pressure gradient of _____

TAP TO REVEAL ANSWER

Increased pressure within a fascial compartment of a limb experiencing Compartment Syndrome is defined by a fascial compartment pressure to diastolic pressure gradient of _____

< 30 mmHg

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