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Musculoskeletal
Anatomy
Knee
Lateral Supporting Structures
Lateral Supporting Structures
B. J. Manaster, MD, PhD, FACR; Julia R. Crim, MD
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TERMINOLOGY

  • Abbreviations

    • Iliotibial (IT) tract
    • Lateral (fibular) collateral ligament (LCL)

  • Synonyms

    • Popliteofibular = short external lateral ligament = fibular origin of popliteus = popliteofibular fascicles

IMAGING ANATOMY

  • Overview

    • Muscles Contributing to Lateral Stability

      • Lateral Support System: Consists of 3 Layers

        • Posterolateral Corner Structures: Superficial and Deep Layers

          ANATOMY IMAGING ISSUES

          • Imaging Recommendations

            • Imaging Sweet Spots

              CLINICAL IMPLICATIONS

              • Clinical Importance

                • Biomechanical Selective Cutting Study

                  • Avulsion Fractures at Posterolateral Corner

                    Selected References

                    1. De Maeseneer M et al: Segond fracture: involvement of the iliotibial band, anterolateral ligament, and anterior arm of the biceps femoris in knee trauma. Skeletal Radiol. 44(3):413-21, 2015
                    2. Porrino J Jr et al: The anterolateral ligament of the knee: MRI appearance, association with the Segond fracture, and historical perspective. AJR Am J Roentgenol. 204(2):367-73, 2015
                    3. Jadhav SP et al: Comprehensive review of the anatomy, function, and imaging of the popliteus and associated pathologic conditions. Radiographics. 34(2):496-513, 2014
                    4. Claes S et al: Anatomy of the anterolateral ligament of the knee. J Anat. 223(4):321-8, 2013
                    Related Anatomy
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                    References
                    Tables

                    Tables

                    TERMINOLOGY

                    • Abbreviations

                      • Iliotibial (IT) tract
                      • Lateral (fibular) collateral ligament (LCL)

                    • Synonyms

                      • Popliteofibular = short external lateral ligament = fibular origin of popliteus = popliteofibular fascicles

                    IMAGING ANATOMY

                    • Overview

                      • Muscles Contributing to Lateral Stability

                        • Lateral Support System: Consists of 3 Layers

                          • Posterolateral Corner Structures: Superficial and Deep Layers

                            ANATOMY IMAGING ISSUES

                            • Imaging Recommendations

                              • Imaging Sweet Spots

                                CLINICAL IMPLICATIONS

                                • Clinical Importance

                                  • Biomechanical Selective Cutting Study

                                    • Avulsion Fractures at Posterolateral Corner

                                      Selected References

                                      1. De Maeseneer M et al: Segond fracture: involvement of the iliotibial band, anterolateral ligament, and anterior arm of the biceps femoris in knee trauma. Skeletal Radiol. 44(3):413-21, 2015
                                      2. Porrino J Jr et al: The anterolateral ligament of the knee: MRI appearance, association with the Segond fracture, and historical perspective. AJR Am J Roentgenol. 204(2):367-73, 2015
                                      3. Jadhav SP et al: Comprehensive review of the anatomy, function, and imaging of the popliteus and associated pathologic conditions. Radiographics. 34(2):496-513, 2014
                                      4. Claes S et al: Anatomy of the anterolateral ligament of the knee. J Anat. 223(4):321-8, 2013