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© 2003 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 22:1369-1375 • 0278-4297

Case Series

Sonographic Evaluation of Lower Extremity Interosseous Membrane Injuries

Retrospective Review in 3 Patients

N. Jarrod Durkee, MD, Jon A. Jacobson, MD, David A. Jamadar, MBBS, FRCR, FRCS, John E. Femino, MD, Madhav A. Karunakar, MD and Curtis W. Hayes, MD

Departments of Radiology (N.J.D., J.A.J., D.A.J., C.W.H.) and Orthopaedic Surgery (J.E.F., M.A.K.), University of Michigan Medical Center, Ann Arbor, Michigan USA.

Address correspondence and reprint requests to Jon A. Jacobson, MD, Department of Radiology, University of Michigan Medical Center, 1500 E Medical Center Dr, TC-2910G, Ann Arbor, MI 48109-0326 USA. E-mail: jjacobsn{at}umich.edu.

Objective. To describe the sonographic findings of lower extremity interosseous membrane disruption with computed tomographic and surgical correlation. Methods. Three patients with sonographic evaluation of the lower extremity interosseous membrane were identified through the clinical experience of 1 author over a 5-year period. Sonographic images of the symptomatic and unaffected lower extremities were retrospectively characterized and correlated with computed tomographic and surgical findings by 2 fellowship-trained musculoskeletal radiologists. Results. The normal interosseous membrane was identified in the asymptomatic lower extremities in all 3 patients, which appeared as a thin, hyperechoic (nearly equal to bone cortex) line, continuous from the tibia to the fibula. The abnormal interosseous membrane in all 3 cases appeared abnormally hypoechoic, poorly defined, and discontinuous at the tibia. A proximal fibular fracture was shown on sonography in 1 of 3 symptomatic lower extremities with radiographic evidence of a fracture. The sonographic findings correlated with the computed tomographic images. Distal tibiofibular syndesmosis injuries were confirmed and treated at surgery in 2 patients. Conclusions. Sonography can show both normal and injured interosseous membranes of the lower extremity, as well as associated proximal fibular fractures.

Abbreviations: CT, computed tomography • IOM, interosseous membrane

Key Words: ankle injuries • extremities • ligaments • soft tissues • sonography




This article has been cited by other articles:


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 J Am Acad Orthop SurgHome page
D. B. Weiss, J. A. Jacobson, and M. A. Karunakar
The Use of Ultrasound in Evaluating Orthopaedic Trauma Patients
J. Am. Acad. Ortho. Surg., December 1, 2005; 13(8): 525 - 533.
[Abstract] [Full Text] [PDF]


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