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Elbow Measurements and Lines
B.J. Manaster, MD, PhD, FACR
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MEASUREMENTS DEFINING NORMAL ANGULATION AT THE ELBOW

  • Carrying Angle of Elbow

    • Humeral Angle

      • Ulnar Angle

        • Significance: Any of These Measurements Detect Abnormal Carrying Angle of Elbow

          USEFUL LINES FOR DETECTION OF SUBTLE TRAUMA

          • Radiocapitellar Line

            • Anterior Humeral Line

              ORDER OF OSSIFICATION OF ELBOW EPIPHYSES/APOPHYSES

              • Ossification Occurs in Reproducible Order

                • Mnemonic: CRITOE

                  • Significance: Detection of Avulsion Fracture of Medial Epicondyle

                    Selected References

                    1. Keats TE et al: Normal axial relationships of the major joints. Radiology. 87(5):904-7, 1966
                    Related Anatomy
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                    Related Differential Diagnoses
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                    References
                    Tables

                    Tables

                    MEASUREMENTS DEFINING NORMAL ANGULATION AT THE ELBOW

                    • Carrying Angle of Elbow

                      • Humeral Angle

                        • Ulnar Angle

                          • Significance: Any of These Measurements Detect Abnormal Carrying Angle of Elbow

                            USEFUL LINES FOR DETECTION OF SUBTLE TRAUMA

                            • Radiocapitellar Line

                              • Anterior Humeral Line

                                ORDER OF OSSIFICATION OF ELBOW EPIPHYSES/APOPHYSES

                                • Ossification Occurs in Reproducible Order

                                  • Mnemonic: CRITOE

                                    • Significance: Detection of Avulsion Fracture of Medial Epicondyle

                                      Selected References

                                      1. Keats TE et al: Normal axial relationships of the major joints. Radiology. 87(5):904-7, 1966