Deltoid ligament

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The deltoid ligament
(center of the picture, referred to as the deltoid ligament )

The deltoid ligament , and medial collateral ligament or Delta band called, is a strong triangular band on the inside of the human ankle , which from the inner ankle ( medial malleolus ) of the shin bone ( tibia ) in a fan shape to the tarsal bone heel bone ( calcaneus ), scaphoid ( navicular bone ) and ankle bone ( talus ) draws. It is the most important stabilizing ligament of the ankle.

Anatomy and function

The deltoid ligament consists of four parts:

  • Pars tibionavicularis : The anterior part of the ligament that runs towards the tuberosity of the navicular bone.
  • Pars tibiocalcanea : part located in the middle that runs almost perpendicular to the sustentaculum tali of the calcaneus and thus bridges the lower and upper ankle joint.
  • Pars tibiotalaris posterior : Most posterior part. Its fibers pull back towards the inside of the talus and the tubercle on its back.
  • Pars tibiotalaris anterior : The deep part of the ligamentum deltoideum that runs from the tip of the medial malleolus to the inside of the ankle bone.

The ligamentum deltoideum is crossed by the tendons of the musculus tibialis posterior and the musculus flexor digitorum longus . The band prevents the foot from kinking ( abduction ) outwards ( laterally ).

Clinical significance

The deltoid ligament is typically damaged by excessive pronation movements (inward rotation). The stretching of the ligament leads to a reduced hold in the ankle. The delta band has the highest tear resistance of the ankle ligaments. Ruptures (tears) of this ligament are extremely rare. A torn delta ligament usually requires surgical intervention with suturing of the ligament.

Individual evidence

  1. ↑ DE Attarian et al.: Biomechanical characteristics of human ankle ligaments. In: Foot Ankle. 6, 1985, pp. 54-58. PMID 4065775
  2. ↑ LS Dias: The lateral ankle sprain: an experimental study. In: The Journal of Trauma . 19, 1979, pp. 266-269. PMID 108406
  3. ^ O. Rasmussen: Stability of the ankle joint: Analysis of the function and traumatology of the ankle ligaments. In: Acta Orthop Scand 56, 1985, pp. 1-75. PMID 3856377
  4. ↑ AB Imhoff: Foot. Verlag Birkhäuser, 2000, ISBN 3-7985-1182-9 p.  Limited preview in the Google book search
  5. ↑ Jürgen Krämer, Joachim Griffka: Orthopedics, trauma surgery. Verlag Springer, Berlin, 2007, ISBN 3-540-48498-1 , p. 303. Restricted preview in the Google book search

literature

  • E. Beck, H. Frick: The diagnosis of ligament injuries in the area of ​​the upper ankle joint. In: European Journal of Trauma. 5, 1979, pp. 180-184. doi : 10.1007 / BF02589376
  • H. Zwipp: Surgery of the foot. Springer, 1994, ISBN 3-211-82411-1 , limited preview in the Google book search
This text is based in whole or in part on the entry Ligamentum deltoideum in Flexikon , a Wiki of the DocCheck company . The takeover took place on February 12, 2010 under the then valid GNU license for free documentation .