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The influence of ankle positioning on the radiography of the distal tibial tubercles

The influence of ankle positioning on the radiography of the distal tibial tubercles Three embalmed human lower legs, with the anterior and posterior tubercles of the distal tibia marked with needles, were radiographed in four positions of rotation to describe the projection and the configuration of the distal tibial tubercles and the tibiofibular syndesmosis, since the distal tibial tubercles are often described incorrectly in the literature. The anterior and posterior tubercles have distinct features that can be recognized in different positions of rotation. The anterior tubercle has an angular shape with its maximum dimension approximately 1 cm above the joint line. The posterior tubercle is a rounded structure in continuity with the posterior lip of the tibia, projecting caudally from the anterior tubercle superimposed on the talus. It was shown that the tibiofibular clear space (TFCS) and the tibiofibular overlap (TFO) differ considerably with rotation and that neither the TFCS nor the TFO depicts a constant syndesmotic interval. Both change considerably with varying rotational projections. To achieve uniformity it is recommended that the TFCS be measured as the distance between the medial border of the fibula and the floor of the incisura, and the TFO as the distance between medial border of the fibula and the anterior tubercle, both on the anteroposterior radiograph. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Surgical and Radiologic Anatomy Springer Journals

The influence of ankle positioning on the radiography of the distal tibial tubercles

Beumer, A.; Swierstra, B.
Surgical and Radiologic Anatomy , Volume 25 (6) – Sep 11, 2003
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References (16)

Publisher
Springer Journals
Copyright
Copyright © 2003 by Springer-Verlag
Subject
Medicine & Public Health; Imaging / Radiology; Orthopedics; Anatomy
ISSN
0930-1038
eISSN
1279-8517
DOI
10.1007/s00276-003-0147-5
pmid
13680181
Publisher site
See Article on Publisher Site

Abstract

Three embalmed human lower legs, with the anterior and posterior tubercles of the distal tibia marked with needles, were radiographed in four positions of rotation to describe the projection and the configuration of the distal tibial tubercles and the tibiofibular syndesmosis, since the distal tibial tubercles are often described incorrectly in the literature. The anterior and posterior tubercles have distinct features that can be recognized in different positions of rotation. The anterior tubercle has an angular shape with its maximum dimension approximately 1 cm above the joint line. The posterior tubercle is a rounded structure in continuity with the posterior lip of the tibia, projecting caudally from the anterior tubercle superimposed on the talus. It was shown that the tibiofibular clear space (TFCS) and the tibiofibular overlap (TFO) differ considerably with rotation and that neither the TFCS nor the TFO depicts a constant syndesmotic interval. Both change considerably with varying rotational projections. To achieve uniformity it is recommended that the TFCS be measured as the distance between the medial border of the fibula and the floor of the incisura, and the TFO as the distance between medial border of the fibula and the anterior tubercle, both on the anteroposterior radiograph.

Journal

Surgical and Radiologic Anatomy – Springer Journals

Published: Sep 11, 2003

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