Ankle Joint Anatomy

  • Ankle joint link the foot and lower leg.
  • Ankle joint is an important joint to accomplish walking, jogging and change of position from sitting to standing.
  • Upper body Weight is transmitted through ankle joint to arch of the foot.
  • Weight is transfer from arch anteriorly to toes and sole, and posteriorly to heel.
  • Ankle joint twist causes mild to severe injury depending on severity of twist and weight transmission through twisted ankle joint.

Ankle Injury Causes-

  • Fracture of ankle bone
  • Dislocation of ankle joint
  • Tear of tendon
  • Tear or sprain ligament
  • Bleeding within joint

Bones Of Ankle Joint Are As Follows-

  1. Tibia
  2. Fibula
  3. Talus and
  4. Calcaneous

Ankle Joint Is Consist Of Three Joints-

  • Tibio-talur joint: Links Tibia with Talus bone
  • Tibia-Fibular Joint: Links lower end of tibia and fibula
  • Subtalar joint or Talo-cacaneal joint: Links Talus bone with Calcaneal bone

Ligaments of Ankle Joint-

  • Ligaments maintain link between the two adjacent bones forming joint.
  • Ligaments are fastened and anchored to adjacent bones.
  • Ligament prevents separation of the bone.

1. Medial (Inner) Ligament or Deltoid Ligament

It consists of 3 Ligaments as Follows:

  • Posterior Tibio-Talar Ligament
  • Tibio-Navicular Ligament
  • Tibio-Calcaneal Ligament

2. Lateral (Outer) Ligament-

  • Anterior Talo-Fibular Ligament
  • Posterior Talo-fibular ligament
  • Calcaneo-Fibular Ligament

3. Posterior Ankle Joint Ligament

  • Posterior Talo-Calcaneal Ligament

Ankle Joint Tendons

Anterior Ankle Joint Tendons

  • Tibialis Anterior
  • Extensor Digitorum Longus
  • Extensor Hallucis Longus
  • Peroneus Longus

Posterior Ankle Joint Tendons

  • Tibialis Posterior
  • Peroneous Longus
  • Peroneus Brevis
  • Peroneus Tertius
  • Flexor Hallucis Longus
  • Flexor Digitorium Longus
  Note: Information provided is not a substitute for physician, hospital or any form of medical care. Examination and Investigation is necessary for correct diagnosis.

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