A Study of Morphometry of Ligaments of Inferior Tibio-Fibular Mortise

Dr Shishirkumar; Dr Suresh Bidarkotimath; Dr Shivarama CH

Volume : VII, Issue : IV, April - 2018

A Study of Morphometry of Ligaments of Inferior Tibio-Fibular Mortise

Dr Shishirkumar, Dr Suresh Bidarkotimath, Dr Shivarama Ch

Abstract :

Background:

The lower end of tibia along with its medial malleolus and the lateral malleolus of the fibula form a deep recess to accommodate the body of talus. The mortise formed by the lower end of tibia and the fibula is usually considered syndesmosis. The tibiofibular joints permit only slight movement. Due to the varying slope of the talar lateral malleolar surface, the fibula rotates laterally a little bit during dorsiflexion at the ankle, the bones being also slightly separated. Slight bending or torsion of the fibular shaft may permit movements at the distal tibiofibular joint. The proximal tibiofibular joint also helps. Habitual squatting has long been recognized to alter the skeletal morphology of the lower limb. Thus modifications of the neck of the talus and the distal tibia indicating their habitual contact have been taken as evidence of the extreme dorsiflexion of the ankle that occurs in squatting. This study puts in a sincere effort to find the mean morphological values of the ligaments of the inferior tibio – fibular mortise so as to be useful to the surgeons operating on these structures.

Methods:

Thirty formalin fixed human ankles were dissected which was available in the department of anatomy, K.S.Hegde medical academy and was continued in Kanachur Institute of Medical Sciences which included nineteen male and eleven female specimen. Male and female ankles were categorized and also right from the left.

Results:

Anterior tibiofibular ligament: It is a flat laminar, multi vesicular flat ligament.The measurements are almost similar on both sides and sexes.

Posterior tibiofibular ligament: The measurements are almost similar on both sides and sexes.

Conclusion:

The study is successful in taking the measurements and hope the surgeons in reality use these measurements while correcting the above discussed ligaments.