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Intraarticular Bodies, Elbow
Andrew Sonin, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Loose bodies, loose fragments, joint mice
            • Definitions

              • 1 or more chondral, osseous, or osteochondral fragments within joint space
              • May be attached to synovium or free to move in joint; hence, loose bodies may not be accurate
                • Intraarticular body/fragment preferred term

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Ultrasonographic Findings

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • Gross Pathologic & Surgical Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        • Reporting Tips

                                          Selected References

                                          1. Ligon CB et al: Elbow loose bodies. J Rheumatol. 41(7):1426-7, 2014
                                          2. Bancroft LW et al: Osteochondral lesions of the elbow. Semin Musculoskelet Radiol. 17(5):446-54, 2013
                                          3. Jans LB et al: MR imaging findings and MR criteria for instability in osteochondritis dissecans of the elbow in children. Eur J Radiol. 81(6):1306-10, 2012
                                          4. Ahmad CS et al: Elbow arthroscopy: capitellar osteochondritis dissecans and radiocapitellar plica. Instr Course Lect. 60:181-90, 2011
                                          5. Van Sonhoven F et al: Osteochondrosis dissecans of the elbow. JBR-BTR. 92(4):207-10, 2009
                                          6. Dodson CC et al: Elbow arthroscopy. J Am Acad Orthop Surg. 16(10):574-85, 2008
                                          7. Flury MP et al: Arthroscopic and open options for surgical treatment of chondromatosis of the elbow. Arthroscopy. 24(5):520-5, 2008
                                          8. Winter M et al: Bilateral patella cubiti. A case report. J Bone Joint Surg Am. 88(2):415-7, 2006
                                          9. Dubberley JH et al: The detection of loose bodies in the elbow: the value of MRI and CT arthrography. J Bone Joint Surg Br. 87(5):684-6, 2005
                                          10. Osada D et al: Multiple loose bodies in the elbow showing a snow storm appearance at arthroscopy. J Orthop Sci. 10(4):422-4, 2005
                                          11. Yorgancigil H et al: Multiple loose bodies in the joints: from snowstorm to hailstones. Arthroscopy. 20(8):e113-6, 2004
                                          12. Bradley JP et al: Osteochondritis dissecans of the humeral capitellum. Diagnosis and treatment. Clin Sports Med. 20(3):565-90, 2001
                                          13. Clasper JC et al: Arthroscopy of the elbow for loose bodies. Ann R Coll Surg Engl. 83(1):34-6, 2001
                                          14. Miller JH et al: Detection of intraarticular bodies of the elbow with saline arthrosonography. Clin Radiol. 56(3):231-4, 2001
                                          15. Mueller T et al: Primary synovial chondromatosis of the elbow. J Shoulder Elbow Surg. 9(4):319-22, 2000
                                          16. Bianchi S et al: Detection of loose bodies in joints. Radiol Clin North Am. 37(4):679-90, 1999
                                          17. Palmer WE: MR arthrography: is it worthwhile? Top Magn Reson Imaging. 8(1):24-43, 1996
                                          18. Gudmundsen TE et al: Accessory ossicles in the elbow. Acta Orthop Scand. 58(2):130-2, 1987
                                          19. Obermann WR et al: The os supratrochleare dorsale: a normal variant that may cause symptoms. AJR Am J Roentgenol. 141(1):123-7, 1983
                                          Related Anatomy
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                                          Related Differential Diagnoses
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                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Top Differential Diagnoses

                                                • Clinical Issues

                                                  • Diagnostic Checklist

                                                    TERMINOLOGY

                                                    • Synonyms

                                                      • Loose bodies, loose fragments, joint mice
                                                    • Definitions

                                                      • 1 or more chondral, osseous, or osteochondral fragments within joint space
                                                      • May be attached to synovium or free to move in joint; hence, loose bodies may not be accurate
                                                        • Intraarticular body/fragment preferred term

                                                    IMAGING

                                                    • General Features

                                                      • Radiographic Findings

                                                        • CT Findings

                                                          • MR Findings

                                                            • Ultrasonographic Findings

                                                              • Imaging Recommendations

                                                                DIFFERENTIAL DIAGNOSIS

                                                                  PATHOLOGY

                                                                  • Gross Pathologic & Surgical Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Demographics

                                                                        • Natural History & Prognosis

                                                                          • Treatment

                                                                            DIAGNOSTIC CHECKLIST

                                                                            • Consider

                                                                              • Image Interpretation Pearls

                                                                                • Reporting Tips

                                                                                  Selected References

                                                                                  1. Ligon CB et al: Elbow loose bodies. J Rheumatol. 41(7):1426-7, 2014
                                                                                  2. Bancroft LW et al: Osteochondral lesions of the elbow. Semin Musculoskelet Radiol. 17(5):446-54, 2013
                                                                                  3. Jans LB et al: MR imaging findings and MR criteria for instability in osteochondritis dissecans of the elbow in children. Eur J Radiol. 81(6):1306-10, 2012
                                                                                  4. Ahmad CS et al: Elbow arthroscopy: capitellar osteochondritis dissecans and radiocapitellar plica. Instr Course Lect. 60:181-90, 2011
                                                                                  5. Van Sonhoven F et al: Osteochondrosis dissecans of the elbow. JBR-BTR. 92(4):207-10, 2009
                                                                                  6. Dodson CC et al: Elbow arthroscopy. J Am Acad Orthop Surg. 16(10):574-85, 2008
                                                                                  7. Flury MP et al: Arthroscopic and open options for surgical treatment of chondromatosis of the elbow. Arthroscopy. 24(5):520-5, 2008
                                                                                  8. Winter M et al: Bilateral patella cubiti. A case report. J Bone Joint Surg Am. 88(2):415-7, 2006
                                                                                  9. Dubberley JH et al: The detection of loose bodies in the elbow: the value of MRI and CT arthrography. J Bone Joint Surg Br. 87(5):684-6, 2005
                                                                                  10. Osada D et al: Multiple loose bodies in the elbow showing a snow storm appearance at arthroscopy. J Orthop Sci. 10(4):422-4, 2005
                                                                                  11. Yorgancigil H et al: Multiple loose bodies in the joints: from snowstorm to hailstones. Arthroscopy. 20(8):e113-6, 2004
                                                                                  12. Bradley JP et al: Osteochondritis dissecans of the humeral capitellum. Diagnosis and treatment. Clin Sports Med. 20(3):565-90, 2001
                                                                                  13. Clasper JC et al: Arthroscopy of the elbow for loose bodies. Ann R Coll Surg Engl. 83(1):34-6, 2001
                                                                                  14. Miller JH et al: Detection of intraarticular bodies of the elbow with saline arthrosonography. Clin Radiol. 56(3):231-4, 2001
                                                                                  15. Mueller T et al: Primary synovial chondromatosis of the elbow. J Shoulder Elbow Surg. 9(4):319-22, 2000
                                                                                  16. Bianchi S et al: Detection of loose bodies in joints. Radiol Clin North Am. 37(4):679-90, 1999
                                                                                  17. Palmer WE: MR arthrography: is it worthwhile? Top Magn Reson Imaging. 8(1):24-43, 1996
                                                                                  18. Gudmundsen TE et al: Accessory ossicles in the elbow. Acta Orthop Scand. 58(2):130-2, 1987
                                                                                  19. Obermann WR et al: The os supratrochleare dorsale: a normal variant that may cause symptoms. AJR Am J Roentgenol. 141(1):123-7, 1983