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Fibula head, fibular head, outer malleolus, malleolus lateralis, head fibulae
Medical: Fibula
English: fibular
The fibula and the shinbone / tibia form the two bones of the lower leg.
Both bones are connected by fibers (membrana interossea cruris).
The fibula lies on the outside of the lower leg. The head of the fibula can be felt on the outside directly below the knee joint. However, it is not involved in the formation of the knee joint.
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Anatomically, the fibula can be divided into three sections structure. The head forms the upper end and rests with its joint surface on the adjacent tibia. Of the Calf community has three sharp edges in its course, which serve as muscle roots and delimit the three sides of the bone. At the lower end, the fibula runs into the so-called. Lateral malleolus that forms the outer ankle. It is visible from the outside and forms part of the ankle joint with the medial malleolus of the tibia.
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With the tibia, the head of the fibula forms the tibia-fibula joint (fibulo-tibial joint).
The bone tapers towards the shaft and widens again towards the outer malleolus (malleolus lateralis). The outer ankle of the fibula forms with the inner ankle of the tibia the upper ankle. In the ankle area, the fibula and tibia are strongly connected to one another by a special fiber connection (syndesmosis).
Almost all of the power transmission of the Thigh on the foot takes place over the shin (tibia).
The fibula is only indirectly connected to the head of the fibula (fibular head) Knee joint involved with the tibial bone joint.
The fibula has a more important function at the upper ankle. The outer malleolus of the fibula forms the outer part of the upper one Ankle.
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$config[ads_text2] not foundThe fibula head has two main functions. On the one hand, it has articular cartilage on part of its surface, via which it communicates with the neighboring Shin connected is. This connection is used for Force distribution on occurrence, from the upper ankle joint, in which the fibula is involved, over the shin, down to the strong one Thigh bone. On the other hand, the fibula head serves as a Attachment of various ligaments of the knee joint and thus contributes to that lateral stabilization at.
The fibula muscles consist of three muscles, the long (M. fibularis longus), dem short (M. fibularis brevis) and the so-called third fibula muscle (M. fibularis tertius).
The long fibula muscle has its origin at the fibula head. From there it pulls along the outside of the lower leg. A little above the outer malleolus, the muscle ends in a long tendon. This runs behind the lower end of the fibula and from there across under the Arch of the footmaking them this stabilized. On the metatarsal bone of the big toe and the sphenoid bone of the Tarsus the tendon finally attaches.
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The short fibula muscle has its origin in the lower third of the calf community and its tendon attaches to the metatarsal bone of the fifth toe. Both muscles serve that Extending the foot downward (Plantar flexion), as well as the Tilting inwards (Pronation).
$config[ads_text3] not foundThe third fibula muscle is actually not an independent muscle, but one Splitting off of the long toe extensor (M. extensor digitorum longus). It pulls in the lower third of the lower leg from the front of the fibula to the metatarsal bone of the fifth toe and supports it Pulling the foot up (Dorsiflexion) and that Tilting inwards (Pronation).
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(taken from the front):
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Fibula pain can have various causes. A fibula fracture is one of the main reasons.
Other sources of pain can be the fibula muscles and the fibular nerve (common fibular nerve). The latter is one of the two main branches of the sciatic nerve. It runs along the outside of the knee along the head of the fibula and is very prone to irritation and inflammation there due to its close proximity to the bone. This usually manifests itself in pain directly above the head of the fibula, which radiates downwards as well as abnormal sensations, e.g. Tingling, in the lower leg.
The therapy is usually carried out with pain relievers and drugs against the inflammation. If the pain comes from the fibula muscles, tension is usually the reason. These often arise from poor posture of the legs, e.g. Knock knees. The tension can usually be felt from the outside as a clear hardening of the muscles. Physiotherapeutic exercises and massages to relax the muscles as well as training to improve posture and eliminate deformities are recommended as further therapy.
Read more on the topic: Fibula pain
The fibula is quite a thin bone and therefore relative at risk of fracture. Still are isolated fibula fractures, in which only the fibula is affected, rather rarely. They arise as a result of a so-called direct impact traumae.g. a kick on the side leg while playing football, or as a fatigue break from walking in the wrong foot position.
Much more common are lower leg fractures, those next to the fibula also the shin is broken, as well as injuries to the ankle joint involving the fibula.
The symptoms of a fibula fracture usually consist of one swelling over the break, as well Pain when touched and moved. Depending on the severity of the fracture, there may be visible and palpable malpositions of the bone or open fractures.
Diagnosis is usually carried out using X-ray image. If possible, the image is taken from two directions in order to be able to assess the exact localization and course of the fracture.
$config[ads_text1] not foundIn the case of isolated fibula fractures, one is usually sufficient Immobilization of the leg in a bandage or a lower leg cast for 4-6 weeks to treat the fracture. In the case of more complicated fractures, however, a OP necessary, in which the bone parts are fixed with screws or plates and can heal during a subsequent immobilization in a plaster cast.
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(taken from the front):
