Knee Trauma - Tibial Plateau Fractures
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Questions and Answers

What is the classification of tibial plateau fractures?

  • Schatzker classification (correct)
  • Tehranzadeh classification
  • Hohl and Moore Classification
  • Pauwels classification
  • What alternative classification may be used for tibial plateau fractures?

  • Evans classification
  • OTA/AO classification
  • Hohl and Moore Classification (correct)
  • Garden classification
  • What are the associated injuries for types I and III tibial plateau fractures?

    Types I to III are low-energy injuries.

    What intra-articular injury commonly occurs with a Schatzker Type 2 tibial plateau fracture?

    <p>Lateral meniscus tear</p> Signup and view all the answers

    Which Schatzker classification is referred to as a 'knee dislocation' equivalent?

    <p>Type 4</p> Signup and view all the answers

    With Schatzker type 4 tibial plateau fracture, which structure should be examined for injury?

    <p>Popliteal artery</p> Signup and view all the answers

    If a difference in palpable pulse strength is noted, what test should be performed?

    <p>Ankle brachial index (ABI)</p> Signup and view all the answers

    Which types of tibial plateau fractures have a high association with compartment syndrome?

    <p>Schatzker Type 4 and Type 6</p> Signup and view all the answers

    What are the operative indications for a tibial plateau fracture?

    <p>Articular step-off &gt; 3mm, condylar widening &gt; 5mm, all bicondylar and medial plateau fractures, open fractures, varus/valgus instability</p> Signup and view all the answers

    In a tibial plateau fracture requiring external fixation, when should a CT scan be performed?

    <p>After fixator application</p> Signup and view all the answers

    During ORIF, what is commonly used to fill a metaphyseal void?

    <p>Calcium phosphate</p> Signup and view all the answers

    What substitute has a high rate of subsidence and drainage if used to fill a metaphyseal void?

    <p>Calcium sulfate</p> Signup and view all the answers

    What factors are critical to restore following ORIF of tibial plateau fractures?

    <p>Length, mechanical alignment, rotation</p> Signup and view all the answers

    What is the most common complication following tibial plateau fractures?

    <p>Post-traumatic arthritis</p> Signup and view all the answers

    Study Notes

    Tibial Plateau Fracture Classifications

    • Schatzker Classification categorizes tibial plateau fractures into six types:
      • Type 1: Lateral split
      • Type 2: Lateral split with depression
      • Type 3: Lateral depression only
      • Type 4: Medial split
      • Type 5: Bicondylar
      • Type 6: Metaphyseal-diaphyseal dissociation
    • Hohl and Moore Classification provides five types:
      • Type 1: Coronal split
      • Type 2: Entire condyle
      • Type 3: Lateral plateau rim avulsion
      • Type 4: Rim compression
      • Type 5: Four-part fractures

    Associated Injuries

    • Types I to III are classified as low-energy injuries, while Types IV to VI are high-energy injuries.
    • Type I primarily affects younger individuals and is commonly linked to medial collateral ligament injuries.
    • Type III is rare and typically occurs in older individuals or those with osteopenia.

    Common Intra-articular Injuries and Classifications

    • Schatzker Type 2 fractures frequently result in lateral meniscus tears.
    • Type 4 fractures are regarded as the equivalent of a knee dislocation.

    Vascular Considerations

    • With Schatzker Type 4 fractures, there is a high risk of popliteal artery injury.
    • If there is a notable difference in palpable pulse strength, an Ankle Brachial Index (ABI) test should be performed, where normal values are greater than 0.9.

    Complications and Risks

    • Schatzker Types 4 and 6 fractures have a strong association with compartment syndrome.
    • Post-traumatic arthritis is the most common complication following tibial plateau fractures.

    Operative Indications for Surgery

    • Surgery is indicated with an articular step-off greater than 3mm, although nonoperative management may be sufficient for up to 8mm step-off in some cases.
    • Condylar widening greater than 5mm, all bicondylar and medial plateau fractures, open fractures, and varus/valgus instability necessitate surgery.

    Imaging and Surgical Techniques

    • A CT scan should be performed after external fixator application to enhance surgical planning through ligamentotaxis.
    • Calcium phosphate is typically used to fill metaphyseal voids during open reduction and internal fixation (ORIF), known for its high compressive strength.
    • Calcium sulfate, while used as a substitute, has a high rate of subsidence and drainage.

    Restoration of Alignment Factors

    • Following ORIF of tibial plateau fractures, the critical factors to restore include length, mechanical alignment, and rotation.

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    Description

    Test your knowledge on tibial plateau fractures with this comprehensive quiz. Explore the different classifications, including the Schatzker and Hohl and Moore systems. Perfect for students and professionals in the medical field.

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