Ankle
Introduction / General
The ankle is made up of various partial joints.
The two largest joints are:
- the upper (OSG)
- and lower ankle joint (USG).
Together they form a functional unit and are called Articulatio cylindrica designated. The ankle joint is one of the most stressed joints in the body, as it has to support the entire body mass with every step.
In addition to these, there are also smaller joints of the tarsal bones, which are, however, strongly fixed by ligaments and therefore hardly movable.
Figure ankle
- Toe phalanx -
Phalanx distalis - Middle toe -
Phalanx media - Metatarsal phalanx -
Phal. proximalis
(1st - 3rd toe bones -
Phalanges) - Metatarsal bones -
Os metatarsi - Inner sphenoid bone -
Medial cuneiform bone - Middle sphenoid bone -
Os cuneiform intermedium - External sphenoid bone -
Os cuneiform laterale - Cuboid - Os cuboideum
- Scaphoid bone - Navicular bone
- Ankle bone - Talus
- Ankle roll - Trochlea tali
- Heel bone - Calcaneus
- Protrusion on 5th metatarsal -
Tuberositas ossis metatarsalis quinti (V)
You can find an overview of all Dr-Gumpert images at: medical illustrations
Upper ankle joint (ankle)
The upper ankle (Articulatio talocruralis) is made up of the articular surfaces of the Malleole fork and the Ankle bone (Talus) together.
The malleolar fork is inserted through the distal end of the Tibia (Tibia) - and Fibula (Fibula) educated. The ankle bone is enclosed by the malleolar fork from above on both sides and is therefore of crucial importance for the stability of the joint.
The upper ankle is a pure hinge joint and can with it just one movement To run. This consists in lifting the tip of the foot (Dorsiflexion) by approx. 20 ° and lower the tip of the foot (Plantar flexion) by approx. 30 °.
The Joint capsule surrounds the two ends of the Tibia and fibula, as well as that Ankle bone. This is where the Malleole fork (Outer and inner ankle) outside the joint capsule and are therefore very vulnerable to injury.
The joint in itself is further enhanced by various others Tapes fixed:
- It's on the inside of the ankle Deltoid ligament (Syn. Lig. Collateral mediale) which consists of four parts (Pars tibionavicularis, pars tibiotalaris anterior and posterior and pars tibiocalcanea). It runs between the inner ankle (Medial malleolus) fan-shaped to the talus (Talus), Heel bone (Calcaneus) and scaphoid (Navicular bone).
- There is also a band on the outside of the ankle Fibula to the talus (Lig.Talofibular anterius and posterius),
- as well as a ligament from the fibula (Fibula) to the Calcaneus (Calcaneus). As a result, the upper ankle is secured primarily by the internal and external ligaments.
I - Upper ankle
(Joint line green) -
Articulatio talocruralis
- Shin -
Tibia - Fibula -
Fibula - Ankle bone -
Talus - Heel bone -
Calcaneus - Achilles tendon -
Tendo calcaneus - Fibula-calcaneus tape -
Calcaneofibular ligament - Hint. Shin-fibula
Ligament (posterior syndesmosis ligament)
Posterior tibiofibular ligament - Front Fibula ankle ligament -
Ligamentum fibulotalare anterius - Delta band -
Deltoid ligament
You can find an overview of all Dr-Gumpert images at: medical illustrations
Lower ankle
The lower ankle is part of the Foot and consists of:
- a front (Articulatio talocalcaneonavicularis)
- and a rear (Articulatio subtalaris) Proportion of.
The boundary between these parts is formed by the ankle-calcaneus ligament (Talocalcaneum interosseous ligament). Both parts each have their own joint cavity, but from a functional point of view, the parts cannot be separated.
The anterior joint part consists of the interaction between the talus (Talus) and parts of the calcaneus (Calcaneus), Scaphoid (Navicular bone) and the plantar calcaneonavicular ligament (joint socket).
The rear part (Articulatio subtalaris) is due to the outwardly shaped side (convex surface) of the calcaneus (Calcaneus) and the inwardly shaped side (concave face) of the talus (Talus) shaped.
The lower ankle can cause the inner (Supination) and outer (Pronation) Lift the edge of the foot. Other joints are automatically moved with this movement, so that the entire pronation and supination movement of the foot is greater than the pure movement in the lower ankle joint.
The Range of motion for the combined movement is around 50-60 ° for the supination and around 30 ° for the Pronation.
The lower ankle is also affected by different Tapes stabilized:
- Plantar calcaneonavicular ligament
stabilizes the front part and pulls as a very strong band from the heel bone (Calcaneus) to the navicular bone (Navicular bone). It is involved in the formation of the joint socket and is covered by cartilage tissue. - Talonavicular ligament
strengthens the joint capsule from behind (dorsal) and extends between the talus (Talus) and scaphoid (Navicular bone). - Long plantar ligament
spans the back of the foot between the heel bone (Calcaneus) to the cuboid (Os cuboideum) and the bones of the Metatarsus and thus stabilizes the anterior part of the lower ankle. - Lig. Talocalcaneum mediale and lateral
Stabilizes the posterior part between ankle bone (talus) and heel bone (calcaneus) as a middle and lateral ligament. - Lig. Calcaneofibulare and Interosseous talocalcaneum ligament
fix the rear part of the lower ankle joint between the calf and heel bones or the ankle and heel bones.
I - Lower ankle
(Joint line green) -
Articulatio talocalcaneonavicularis
- Shin - Tibia
- Fibula - Fibula
- Ankle bone - Talus
- Heel bone - Calcaneus
- Achilles tendon -
Tendo calcaneus - Fibula-calcaneus tape -
Calcaneofibular ligament - Hint. Shin-fibula
Tape-
Posterior tibiofibular ligament - Front Fibula ankle
Tape-
Lig fibulotalare anterius - Delta band - Deltoid ligament
- Scaphoid bone - Navicular bone
- Cuboid -Os cuboideum
- Fibula short muscle -
Musculus fibularis brevis
You can find an overview of all Dr-Gumpert images at: medical illustrations
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My name is dr. Nicolas Gumpert. I am a specialist in orthopedics and the founder of .
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Athletes (joggers, soccer players, etc.) are particularly often affected by diseases of the foot. In some cases, the cause of the foot discomfort cannot be identified at first.
Therefore, the treatment of the foot (e.g. Achilles tendonitis, heel spurs, etc.) requires a lot of experience.
I focus on a wide variety of foot diseases.
The aim of every treatment is treatment without an operation with a complete restoration of performance.
Which therapy achieves the best results in the long term can only be determined after looking at all of the information (Examination, X-ray, ultrasound, MRI, etc.) be assessed.
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Injuries to the ankle
The ligament structures of the foot are particularly often affected by injuries. With a typical twisting of the foot inwards or outwards, damage to the capsular ligament apparatus with tearing, stretching or straining of the affected ligaments can occur.
Bony injuries, such as fractures of the outer or inner ankle, are possible, but rarely.
With around 20% of all sports injuries, the ankle is very often affected by trauma of all kinds. Compared to other joints, however, there are hardly any signs of wear and tear in the ankle, provided that no trauma has preceded it.
Thus, the most common osteoarthritis occurs after ankle sprained fractures or complex injuries to the capsule and ligaments.
Common ankle injuries:
- Torn ligament in the ankle
- Ligament stretch in the ankle
- Cartilage damage in the ankle
- Inflammation of the ankle
- Ankle fracture
- Ankle arthrosis
Other joints of the tarsus / metatarsus
The Joint between the calcaneus and cubic bone (Articulatio calcaneocuboidea) is a Amphiarthrosis, a very strongly fixed joint in which hardly any movements possible are. This joint is also fixed by additional tight ligaments.
Also the Tarsal-metatarsal joints (Articulationes tarsometatarsales) and the Metatarsal joints (Articulationes intermetatarsales) are Amphiarthroses and therefore hardly movable.
Toe joints
It will Metatarsophalangeal joint (Articulationes metatarsophalangae) and Toe middle or Toe joints (Articulationes interphalangae) differentiated.
The Basal joints are Ball joints, however, they are strongly fixed by various straps and are therefore hardly movable.
The Middle and end joints are Hinge joints and a little more agile.
Summary
The ankle is one functional unit consisting of:
- an upper ankle,
- a lower ankle and
- other smaller joints between the individual metatarsals.
The ankle is strongly fixed by ligaments and therefore does not allow many different movements.
Due to the high stress of the ankle, it must be very stable, this is ensured by the ligament and capsular apparatus.
However, since the outer and inner ankles are not located within the joint capsule, they are very prone to injury. This is how most sports injuries occur in the area of the outer or inner ligaments Ankle trauma. This can cause tearing, straining, or stretching of the ligaments. Despite the high stress on the ankle, signs of wear and tear (osteoarthritis) are very rare without a previous serious injury.
