Vajid Khan, Jatin Kaicker, James Namburi, Pawel Stefanksi, Bradley Petrisor, Hema Choudur^*

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Department of Medical Imaging, McMaster University, Hamilton, Canada.
Department of Orthopedic Surgery, McMaster University, Hamilton, Canada.
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Abstract: Background: The anterior talofibular ligament (ATFL) is the ligament most commonly injured during ankle sprains. Objective: The purpose of this investigation was to assess the sensitivity of Magnetic Resonance (MR) imaging for ATFL with open surgery, Brostrom-Gould surgical interventional considered the gold standard. Methods: A retrospective chart review using Operating Room (OR) and MR reports from April 2008-November 2009 led to a review of 137 charts, with 15 cases meeting the inclusion criteria. Results: The sensitivity for ATFL tears irrespective of extent of the tear was 93%. For full thickness ATFL tears, 10 were found to be positive on MR but 13 on OR with a sensitivity of 77%. Of the three missed cases, 2 were described as sprain injuries and the other normal using MRI. Conclusion: The recommendations for MR assessment of ankle injury include use of dedicated sequences and understanding the “pseudoband” concept. The two full thickness and two partial thickness tears on OR described as sprain injuries on MRI had a band of inflammatory granulation tissue. This tissue accounted for the appearance of the thick continuous band at MRI, the pseudoband. This study reaffirms the usefulness of MR in determining ATFL tears, aiding surgical decision making.

Keywords: ATFL Tear; Brostrom-Gould Surgery; Pseudoband

Cite this paper: Khan, V. , Kaicker, J. , Namburi, J. , Stefanksi, P. , Petrisor, B. and Choudur, H. (2013) Pseudoband formation: Missed ATFL tears on MR imaging. Open Journal of Clinical Diagnostics, 3, 137-141. doi: 10.4236/ojcd.2013.33024.

References

[1]   Baert A.L., Reiser, M.F., Hricak, H. and Knauth, M. (2011) Sports injuries in children and adolescents. Springer, London, 219-222.

[2]   Linklater, J. (2004) Ligamentous, chondral, and osteochondral ankle injuries in athletes. Semin Musculoskelet Radiol, 8, 81-98. doi:10.1055/s-2004-823016

[3]   Labovitz, J.M., Schweitzer, M.E., Larka, U.B. and Solomon, M.G. (1998) Magnetic resonance imaging of ankle ligament injuries correlated with time. JAMPA, 88, 388-393.

[4]   Bickley, L.S. (2009) Bates guide to physical examination. Lippincott, Philadelphia, 2009.

[5]   Oae, K., Takao, M., Uchio, Y. and Ochi, M. (2010) Evaluation of anterior talofibular ligament injury with stress radiography, ultrasonography and MR imaging. Skeletal Radiology, 39, 41-47. doi:10.1007/s00256-009-0767-x

[6]   Park, H.J., Ca, S.D., Kim, S.S., Rho, M.H., Kwag, H.J., Park, N.H. and Lee, S.Y. (2012) Accuracy of MRI findings in chronic lateral ankle ligament injury: Comparison with surgical findings. Clinical Radiology, 67, 313-318. doi:10.1016/j.crad.2011.08.025