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Stability Assessment of the Ankle Mortise in Supination- External Rotation-Type Ankle Fractures: Lack of Additional Diagnostic Value of MRI by Simo Nortunen,

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Presentation on theme: "Stability Assessment of the Ankle Mortise in Supination- External Rotation-Type Ankle Fractures: Lack of Additional Diagnostic Value of MRI by Simo Nortunen,"— Presentation transcript:

1 Stability Assessment of the Ankle Mortise in Supination- External Rotation-Type Ankle Fractures: Lack of Additional Diagnostic Value of MRI by Simo Nortunen, Sannamari Lepojärvi, Olli Savola, Jaakko Niinimäki, Pasi Ohtonen, Tapio Flinkkilä, Iikka Lantto, Tero Kortekangas, and Harri Pakarinen J Bone Joint Surg Am Volume 96(22):1855-1862 November 19, 2014 ©2014 by The Journal of Bone and Joint Surgery, Inc.

2 A stable ankle mortise in an external-rotation stress test. Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

3 An unstable ankle mortise in an external-rotation stress test. Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

4 Coronal intermediate-weighted 3.0-T MRI of a normal deep deltoid ligament (white arrow) in a patient who did not participate in the study. Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

5 Coronal intermediate-weighted 3.0-T MRI showing edema between continuous fibers of the deep deltoid ligament (white arrow). Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

6 Coronal intermediate-weighted 3.0-T MRI showing a partial tear of the deep deltoid ligament; fluid signal transects some of the ligament fibers (white arrow). Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

7 Coronal intermediate-weighted 3.0-T MRI showing a complete tear of the deep deltoid ligament (white arrow). Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

8 Box-plot diagram showing the 25th, 50th, and 75th quartiles for the medial clear space (MCS) measurements associated with various MRI findings for the deep deltoid ligament. Simo Nortunen et al. J Bone Joint Surg Am 2014;96:1855- 1862 ©2014 by The Journal of Bone and Joint Surgery, Inc.

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