The morphology of medial malleolus and its clinical relevance. | [Pakistan Journal of Medical Sciences • 2014]

Author(s):

1. Kun Zhang: Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

2. Yanxi Chen: Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

3. Minfei Qiang: MS, Dept. of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

4. Yini Hao: Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

5. Haobo Li: Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

6. Hao Dai: Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, 150 Jimo Rd, 200120 Shanghai, China

Abstract:

Objective: To provide morphological data of medial malleolus to decrease the possibility of posterior tibial tendon injury and inadvertent ankle penetration. :Methods: Computed tomography scans of the ankle in 215 patients were reviewed. Then parameters in:the 3-D reconstruction images were measured by three independent, qualified observers on two separate occasions. :Results: The average angle between tibia plafond and the articular facet of the medial malleolus was:55.88±4.11°. The distance from the most anterior point of the anterior colliculus to the center of the intercollicular groove was 11.68±1.13 mm. And the average angle between the bimalleolar axis and the articular facet of the medial malleolus was 76.61±2.04°. Significant differences were observed in the distance from the most anterior point of the anterior colliculus to the center of the intercollicular groove between males and females. (P Conclusions: According to this study, the insertion angle is much smaller than previously believed, and adequate space only exists for two 4.0-mm screws in some large cases. The second screw will probably be near the posterior tibial tendon, especially in some small cases.

Page(s): 348-351

DOI: DOI not available

Published: Journal: Pakistan Journal of Medical Sciences, Volume: 30, Issue: 2, Year: 2014

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