eMedicine Specialties > Radiology > Musculoskeletal

Shoulder, Dislocations: Follow-up

Author: Gavin Yeh Tseng, MBBS, FRCR, FAMS, Consultant Radiologist, Department of Diagnostic Radiology, Raffles Hospital
Coauthor(s): Wilfred CG Peh, MD, MBBS, FRCP(Glasg), FRCP(Edin), FRCR, Clinical Professor, Faculty of Medicine, National University of Singapore; Senior Consultant Radiologist, Alexandra Hospital, Singapore
Contributor Information and Disclosures

Updated: Jul 31, 2009

Intervention

Medicolegal Pitfalls

  • The radiologist needs to be aware of the potential pitfalls (ie, the false-positive and false-negative findings) that can occur with each imaging technique. Familiarity with the limitations of each technique and with normal anatomic variants is therefore important. In this evolving area of imaging, the radiologist should keep up to date on the best modality to use.
    • For example, MRI is more sensitive and specific in the demonstration of intra-articular and periarticular soft-tissue structures and has superseded CT arthrography as the modality used for such imaging.
    • Conventional MRI and MR arthrography are currently the modalities of choice.
  • Potential problems associated with arthrography include patient discomfort, risk of septic arthritis, and the need for contrast administration.
    • Use of gadopentetate dimeglumine for intra-articular injections has not been approved by the FDA.
    • Institutional board approval is required for its use, and obtaining written informed consent from the patient is mandatory.
 


More on Shoulder, Dislocations

Overview: Shoulder, Dislocations
Imaging: Shoulder, Dislocations
Follow-up: Shoulder, Dislocations
Multimedia: Shoulder, Dislocations
References
Further Reading

References

  1. Ng AW, Chu CM, Lo WN, Lai YM, Kam CK. Assessment of capsular laxity in patients with recurrent anterior shoulder dislocation using MRI. AJR Am J Roentgenol. Jun 2009;192(6):1690-5. [Medline].

  2. Griffith JF, Antonio GE, Yung PS, Wong EM, Yu AB, Ahuja AT, et al. Prevalence, pattern, and spectrum of glenoid bone loss in anterior shoulder dislocation: CT analysis of 218 patients. AJR Am J Roentgenol. May 2008;190(5):1247-54. [Medline].

  3. Saupe N, White LM, Bleakney R, Schweitzer ME, Recht MP, Jost B, et al. Acute traumatic posterior shoulder dislocation: MR findings. Radiology. Jul 2008;248(1):185-93. [Medline].

  4. Murray PJ, Shaffer BS. Clinical update: MR imaging of the shoulder. Sports Med Arthrosc. Mar 2009;17(1):40-8. [Medline].

  5. Magee T. 3-T MRI of the shoulder: is MR arthrography necessary?. AJR Am J Roentgenol. Jan 2009;192(1):86-92. [Medline].

  6. Lecouvet FE, Simoni P, Koutaïssoff S, Vande Berg BC, Malghem J, Dubuc JE. Multidetector spiral CT arthrography of the shoulder. Clinical applications and limits, with MR arthrography and arthroscopic correlations. Eur J Radiol. Oct 2008;68(1):120-36. [Medline].

  7. Chandnani VP, Yeager TD, DeBerardino T, et al. Glenoid labral tears: prospective evaluation with MRI imaging, MR arthrography, and CT arthrography. AJR Am J Roentgenol. Dec 1993;161(6):1229-35. [Medline].

  8. Cvitanic O, Tirman PF, Feller JF, et al. Using abduction and external rotation of the shoulder to increase the sensitivity of MR arthrography in revealing tears of the anterior glenoid labrum. AJR Am J Roentgenol. Sep 1997;169(3):837-44. [Medline].

  9. De Maeseneer M, Van Roy F, Lenchik L, et al. CT and MR arthrography of the normal and pathologic anterosuperior labrum and labral-bicipital complex. Radiographics. Oct 2000;20 Spec No:S67-81. [Medline].

  10. Grainger AJ, Elliott JM, Campbell RS, et al. Direct MR arthrography: a review of current use. Clin Radiol. Mar 2000;55(3):163-76. [Medline].

  11. Hottya GA, Tirman PF, Bost FW, et al. Tear of the posterior shoulder stabilizers after posterior dislocation: MR imaging and MR arthrographic findings with arthroscopic correlation. AJR Am J Roentgenol. Sep 1998;171(3):763-8. [Medline].

  12. Palmer WE, Brown JH, Rosenthal DI. Labral-ligamentous complex of the shoulder: evaluation with MR arthrography. Radiology. Mar 1994;190(3):645-51. [Medline].

  13. Palmer WE, Caslowitz PL, Chew FS. MR arthrography of the shoulder: normal intraarticular structures and common abnormalities. AJR Am J Roentgenol. Jan 1995;164(1):141-6. [Medline].

  14. Peh WC, Cassar-Pullicino VN. Magnetic resonance arthrography: current status. Clin Radiol. Sep 1999;54(9):575-87. [Medline].

  15. Roger B, Skaf A, Hooper AW, et al. Imaging findings in the dominant shoulder of throwing athletes: comparison of radiography, arthrography, CT arthrography, and MR arthrography with arthroscopic correlation. AJR Am J Roentgenol. May 1999;172(5):1371-80. [Medline].

  16. Smith DK, Chopp TM, Aufdemorte TB, et al. Sublabral recess of the superior glenoid labrum: study of cadavers with conventional nonenhanced MR imaging, MR arthrography, anatomic dissection, and limited histologic examination. Radiology. Oct 1996;201(1):251-6. [Medline].

  17. Stoller DW. MR arthrography of the glenohumeral joint. Radiol Clin North Am. Jan 1997;35(1):97-116. [Medline].

  18. Willemsen UF, Wiedemann E, Brunner U, et al. Prospective evaluation of MR arthrography performed with high-volume intraarticular saline enhancement in patients with recurrent anterior dislocations of the shoulder. AJR Am J Roentgenol. Jan 1998;170(1):79-84. [Medline].

  19. Garneau RA, Renfrew DL, Moore TE, et al. Glenoid labrum: evaluation with MR imaging. Radiology. May 1991;179(2):519-22. [Medline].

  20. Gusmer PB, Potter HG, Schatz JA, et al. Labral injuries: accuracy of detection with unenhanced MR imaging of the shoulder. Radiology. Aug 1996;200(2):519-24. [Medline].

  21. Jahnke AH Jr, Petersen SA, Neumann C, et al. A prospective comparison of computerized arthrotomography and magnetic resonance imaging of the glenohumeral joint. Am J Sports Med. Nov-Dec 1992;20(6):695-700; discussion 700-1. [Medline].

  22. Kursunoglu-Brahme S, Resnick D. Magnetic resonance imaging of the shoulder. Radiol Clin North Am. Sep 1990;28(5):941-54. [Medline].

  23. Legan JM, Burkhard TK, Goff WB, et al. Tears of the glenoid labrum: MR imaging of 88 arthroscopically confirmed cases. Radiology. Apr 1991;179(1):241-6. [Medline].

  24. Neumann CH, Petersen SA, Jahnke AH. MR imaging of the labral-capsular complex: normal variations. AJR Am J Roentgenol. Nov 1991;157(5):1015-21. [Medline].

  25. Rafii M, Firooznia H, Golimbu C. MR imaging of glenohumeral instability. Magn Reson Imaging Clin N Am. Nov 1997;5(4):787-809. [Medline].

  26. Rafii M, Minkoff J. Advanced arthrography of the shoulder with CT and MR imaging. Radiol Clin North Am. Jul 1998;36(4):609-33. [Medline].

  27. Seeger LL, Yao L, Gold RH. Diagnosis of glenoid labral tears: a comparison between magnetic resonance imaging and clinical examinations. Am J Sports Med. Jan-Feb 1997;25(1):141-4. [Medline].

  28. Peh WC, Campbell C, Kelly IG, et al. The role of computerized tomography in shoulder arthrography. J R Coll Surg Edinb. Jun 1994;39(3):190-5. [Medline].

  29. Rafii M, Firooznia H, Bonamo JJ, et al. Athlete shoulder injuries: CT arthrographic findings. Radiology. Feb 1987;162(2):559-64. [Medline].

  30. Rafii M, Minkoff J, Bonamo J, et al. Computed tomography (CT) arthrography of shoulder instabilities in athletes. Am J Sports Med. Jul-Aug 1988;16(4):352-61. [Medline].

  31. Singson RD, Feldman F, Bigliani L. CT arthrographic patterns in recurrent glenohumeral instability. AJR Am J Roentgenol. Oct 1987;149(4):749-53. [Medline].

  32. Altchek DW, Warren RF, Wickiewicz TL, et al. Arthroscopic labral debridement. A three-year follow-up study. Am J Sports Med. Nov-Dec 1992;20(6):702-6. [Medline].

  33. Beltran J, Bencardino J, Mellado J, et al. MR arthrography of the shoulder: variants and pitfalls. Radiographics. Nov-Dec 1997;17(6):1403-12; discussion 1412-5. [Medline].

  34. Cetik O, Uslu M, Ozsar BK. The relationship between Hill-Sachs lesion and recurrent anterior shoulder dislocation. Acta Orthop Belg. Apr 2007;73(2):175-8. [Medline].

  35. Garth WP Jr, Allman FL Jr, Armstrong WS. Occult anterior subluxations of the shoulder in noncontact sports. Am J Sports Med. Nov-Dec 1987;15(6):579-85. [Medline].

  36. Glasgow SG, Bruce RA, Yacobucci GN, et al. Arthroscopic resection of glenoid labral tears in the athlete: a report of 29 cases. Arthroscopy. 1992;8(1):48-54. [Medline].

  37. Jones KJ, Wiesel B, Ganley TJ, et al. Functional outcomes of early arthroscopic bankart repair in adolescents aged 11 to 18 years. J Pediatr Orthop. Mar 2007;27(2):209-13. [Medline].

  38. Levy O, Matthews T, Even T. The "purse-string" technique: an arthroscopic technique for stabilization of anteroinferior instability of the shoulder with early and medium-term results. Arthroscopy. Jan 2007;23(1):57-64. [Medline].

  39. Matsen FA, Harryman DT, Sidles JA. Mechanics of glenohumeral instability. Clin Sports Med. Oct 1991;10(4):783-8. [Medline].

  40. Mizuno K, Hirohata K. Diagnosis of recurrent traumatic anterior subluxation of the shoulder. Clin Orthop. Oct 1983;(179):160-7. [Medline].

  41. O'Connell PW, Nuber GW, Mileski RA, et al. The contribution of the glenohumeral ligaments to anterior stability of the shoulder joint. Am J Sports Med. Nov-Dec 1990;18(6):579-84. [Medline].

  42. Pollock RG, Bigliani LU. Glenohumeral instability: evaluation and treatment. J Am Acad Orthop Surg. Oct 1993;1(1):24-32. [Medline].

  43. Rowe CR, Zarins B. Recurrent transient subluxation of the shoulder. J Bone Joint Surg Am. Jul 1981;63(6):863-72. [Medline].

  44. Tijmes J, Loyd HM, Tullos HS. Arthrography in acute shoulder dislocations. South Med J. May 1979;72(5):564-7. [Medline].

  45. Tirman PF, Feller JF, Janzen DL, et al. Association of glenoid labral cysts with labral tears and glenohumeral instability: radiologic findings and clinical significance. Radiology. Mar 1994;190(3):653-8. [Medline].

  46. Turkel SJ, Panio MW, Marshall JL, et al. Stabilizing mechanisms preventing anterior dislocation of the glenohumeral joint. J Bone Joint Surg Am. Oct 1981;63(8):1208-17. [Medline].

  47. Warner JJ, McMahon PJ. The role of the long head of the biceps brachii in superior stability of the glenohumeral joint. J Bone Joint Surg Am. Mar 1995;77(3):366-72. [Medline].

  48. Zlatkin MB, Bjorkengren AG, Gylys-Morin V, et al. Cross-sectional imaging of the capsular mechanism of the glenohumeral joint. AJR Am J Roentgenol. Jan 1988;150(1):151-8. [Medline].

Keywords

shoulder dislocation, glenohumeral instability, atraumatic shoulder dislocation, congenital shoulder laxity, macrotraumatic shoulder dislocation, microtraumatic shoulder dislocation, recurrent shoulder dislocation, Bankart lesion, atraumatic type with multidirectional and bilateral instability, AMBRI, glenohumeral ligaments, anterior shoulder dislocations, posterior shoulder dislocations, anterior labroligamentous periosteal sleeve avulsion, ALPSA, humeral avulsions, glenoid labral articular disruption, GLAD, bony humeral avulsion of the glenohumeral ligament, BHAGL, Perthes lesion, luxatio erecta, inferior shoulder dislocation

Contributor Information and Disclosures

Author

Gavin Yeh Tseng, MBBS, FRCR, FAMS, Consultant Radiologist, Department of Diagnostic Radiology, Raffles Hospital
Gavin Yeh Tseng, MBBS, FRCR, FAMS is a member of the following medical societies: Royal College of Radiologists
Disclosure: Nothing to disclose.

Coauthor(s)

Wilfred CG Peh, MD, MBBS, FRCP(Glasg), FRCP(Edin), FRCR, Clinical Professor, Faculty of Medicine, National University of Singapore; Senior Consultant Radiologist, Alexandra Hospital, Singapore
Wilfred CG Peh, MD, MBBS, FRCP(Glasg), FRCP(Edin), FRCR is a member of the following medical societies: American Roentgen Ray Society, British Institute of Radiology, International Skeletal Society, Radiological Society of North America, Royal College of Physicians, and Royal College of Radiologists
Disclosure: Nothing to disclose.

Medical Editor

David S Levey, MD, PhD, Orthopedic/Spine MRI TeleRadiologist, Radsource, LLC
David S Levey, MD, PhD is a member of the following medical societies: American Roentgen Ray Society, Radiological Society of North America, and Texas Medical Association
Disclosure: Nothing to disclose.

Pharmacy Editor

Bernard D Coombs, MB, ChB, PhD, Consulting Staff, Department of Specialist Rehabilitation Services, Hutt Valley District Health Board, New Zealand
Disclosure: Nothing to disclose.

Managing Editor

William R Reinus, MD, MBA, FACR, Professor of Radiology, Temple University; Chief of Musculoskeletal and Trauma Radiology, Vice Chair, Department of Radiology, Temple University Hospital
William R Reinus, MD, MBA, FACR is a member of the following medical societies: Alpha Omega Alpha, American College of Radiology, American Roentgen Ray Society, Radiological Society of North America, and Sigma Xi
Disclosure: Nothing to disclose.

CME Editor

Robert M Krasny, MD, Consulting Staff, Department of Radiology, The Angeles Clinic and Research Institute
Robert M Krasny, MD is a member of the following medical societies: American Roentgen Ray Society and Radiological Society of North America
Disclosure: Nothing to disclose.

Chief Editor

Felix S Chew, MD, MBA, EdM, Professor, Department of Radiology, Vice Chairman for Radiology Informatics, Section Head of Musculoskeletal Radiology, University of Washington
Felix S Chew, MD, MBA, EdM is a member of the following medical societies: American Roentgen Ray Society, Association of University Radiologists, and Radiological Society of North America
Disclosure: Nothing to disclose.

 
 
HONcode

We subscribe to the
HONcode principles of the
Health On the Net Foundation

All material on this website is protected by copyright, Copyright© 1994- by Medscape.
This website also contains material copyrighted by 3rd parties.

DISCLAIMER: The content of this Website is not influenced by sponsors. The site is designed primarily for use by qualified physicians and other medical professionals. The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The information provided here is for educational and informational purposes only. In no way should it be considered as offering medical advice. Please check with a physician if you suspect you are ill.