Scaphoid. Foot bones: anatomy

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Scaphoid. Foot bones: anatomy
Scaphoid. Foot bones: anatomy

Video: Scaphoid. Foot bones: anatomy

Video: Scaphoid. Foot bones: anatomy
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There is a huge amount of bones in the human body. Especially a lot of them in such moving parts of the body as the feet and wrists. Dozens of bones connected by tendons help to perform work that is inaccessible to animals, except perhaps, except for monkeys. The complex system of the hands and feet, although it has a large amount of connective tissue, is subject to various injuries and diseases. The most common is fracture. The concept is associated with a fracture of the bone and possible displacement. In the hands and feet, as already mentioned, there are a large number of these organs that do not differ in size, so it takes a lot of time to treat them. The navicular bone is the most susceptible to disease and injury.

Foot

The leg bones are presented in huge quantities. Some of them are united by the common name of the foot. The navicular bone belongs to this group. It is located between the talus, cuboid and intermediate cuneiform bones. It is this area of the foot, excluding the toes, that is most often prone to fractures.

The bones of the foot, the anatomy of which is represented by three sections, is quite numerous: tarsus, metatarsus and fingers. The metatarsal bones of the foot contain in their rows andscaphoid. It is located near the inside of the foot. On its edge there is a tuberosity of the navicular bone directed downwards. In medicine, this feature is used to determine the arch that the foot has. X-ray helps to understand the composition of this body part.

Foot x-ray
Foot x-ray

Brush

The navicular bone is also located in the cyst. It refers to the small bones of the wrist. It is she who is most prone to fracture, as it is located on the edge of the palm. Interestingly, a person who breaks this bone does not feel much pain and can only feel a bruise, albeit a strong one. Hence, it is quite dangerous. If you do not consult a doctor, there can be serious consequences. For example, the scaphoid may not heal properly.

The wrist is made up of 8 bones. They form 2 rows, each of which has 4 of them, located between the metacarpal bones and the forearm. The navicular bone is easy to feel due to its location. It lies between the tendons of the extensor pollicis longus and the abductor longus.

Diseases of the bones of the foot

Besides a fracture, the navicular bone of the leg is subject to other injuries and diseases. For example, Kellerr's disease. Osteochondropathy can serve as a messenger of this disease. It affects all the bones of the foot. Gradually destroys tissue. During an illness, a small amount of blood enters the bones, which means that there is not enough oxygen and nutrients. Consequently, cells that do not receive a sufficient amount of this gas and other necessary components gradually die off. Howeverthis happens, in the case of Keller's disease, without the intervention of the infection.

Causes of Keller's disease

Keller's disease cannot occur by itself. For her, there are several reasons that somehow interfere with the flow of blood to the bones. Most often, these are foot injuries, for example, a severe bruise or fracture. Also, those who wear uncomfortable shoes of small size are susceptible to this disease. Osteoarthritis and arthritis are diseases that also lead to Keller's disease. In addition to the above reasons, congenital deformities of the bones of the foot can also lead to deterioration. Flat feet is one of the main defects. But the causes that directly affect the appearance of the disease have not been found even today.

Foot bones anatomy
Foot bones anatomy

Shapes

The bones of the leg are susceptible to two varieties of Keller's disease. It all depends on which part of the foot does not receive enough nutrients and oxygen.

When the navicular bone is affected, the disease is called Keller's disease 1. If the blood does not flow to the heads of the third and second metatarsal bones, which leads to their change, then this is called Keller's disease 2.

In addition, there are several stages:

  • Necrosis.
  • Compression fracture.
  • Fragmentation.
  • Bone repair.

In the first stage bone beams die, which act as structural elements of the bone. Further, the formation of new parts of bone tissue occurs, which often break due to poor strength. Then the bone beams dissolve. And the last stagefully corresponds to the name.

Treatment of Keller's disease

The foot bones need to be treated. Their anatomy is extremely complex, so they are not easy to cure. In Keller's disease 1, it is the fracture of the navicular bone that most often occurs. It can be mistaken for a bruise, and the disease is extremely difficult to detect. Unless by chance the sick person goes to the doctor. Then comes the course of treatment. A bone with the same name is also in the hand, but it will be called Ireycer's disease, although the principle of treatment will be the same.

Conservative therapy is one of the most effective methods of treatment. A plaster cast is also applied. It is not recommended to move the leg itself, since such a small and non-standard bone is difficult to fix. After removing the plaster, in order to save the result, you need to walk on crutches or with a cane for some time, special insoles are sewn for children. Medications can speed up healing. Thermal treatments are very helpful.

Navicular bone of the hand
Navicular bone of the hand

Invalid

It is impossible to engage in a dispute after removing the cast. The leg needs constant rest. There is also a possibility of improper fusion and the formation of a false joint, which is difficult to cure. An operation will be required. Therefore, the rehabilitation process must be treated with maximum attention. In addition, you can only take those drugs that the doctor prescribed, otherwise you can only make your leg worse. You can not neglect the advice of a doctor, since each person has his own characteristics of the body. Some bones are brittlebirth, so they should be especially careful when treating this disease.

Bone fracture in arm

As already mentioned, the navicular bone of the hand and foot is more at risk of fracture than others. This is due to the fact that both on the foot and on the hand, the bone is located in places with which injuries most often occur. If we turn to statistics, then in the case of a fracture of the wrist, it is the navicular that suffers in 61-88% of cases.

Causes of fracture

But why does this bone break? As practice shows, many are injured by falling on their hands. In this case, the load is almost completely borne by the bone. The fractures themselves also differ: intra-articular and extra-articular.

Navicular bone of the leg
Navicular bone of the leg

Symptoms

The navicular bone is very often injured. But after the fracture, she practically does not hurt. Most simply do not notice the inconvenience, thinking that it is just a bruise. However, you need to see a doctor as soon as possible. The scaphoid bone is difficult to treat, and if you do not have time to heal it, there may be irreparable consequences. Unfortunately, not everyone goes to the hospital. Most often, a fracture is discovered randomly. There are some symptoms that can help recognize an injury:

  • Pain in the navicular region.
  • Discomfort when moving the joints of the hand.
  • Rather painful extension of the radius.
  • Swelling of the affected area.

Diagnosis

As with a broken bone in the wrist, with an injury to the navicular bone in the leg,foot suffers. An x-ray helps to find the cause of the pain. Initially, a 3D projection is carried out on the apparatus, for which the zones are examined in three projections. At the final stage, a fracture (fracture) of the navicular bone is clearly visible. All this is carried out due to the fact that the navicular bone is extremely difficult to treat, it is surrounded by other organs. To competently and accurately apply a plaster cast, a 3D projection is simply necessary.

leg bones
leg bones

There are subtleties. For example, fingers should be clenched into a fist. If the fracture is not immediately visible on x-ray, but by all indications it is, then the victim wears a plaster cast for about 2 weeks, then his hand is re-checked. The thing is that during this period resorption occurs and the crack will be clearly visible, if, of course, it is present at all. Actions help establish a diagnosis and prescribe treatment.

Bone treatment

The navicular bone at the wrist is often broken, which is extremely difficult to detect. To detect a fracture, one has to resort to a 3D projection. But the treatment of a fracture is much longer and more difficult. Bone consolidation is purely due to the endosteal callus, which forms extremely slowly and requires a large amount of nutrients (blood). Displacement of the distal fragment is possible. All of the above leads to the formation of a false joint, and thus complicates the already difficult treatment.

1 way. Treating Fresh Injuries

The easiest way to heal the navicular bone of the hand is to apply a plaster cast. The most frequently encounteredit is used in 90–95% of cases. The imposition occurs from the heads of the metacarpal bones up to the elbow joint, while it is mandatory to capture the phalanx of the little finger under the bandage. The hand remains motionless, but for the convenience of the victim, its position looks like a slight extension. Immobilization of the hand lasts about 11 weeks. If the fracture occurred with a tubercle, then it is only 4 weeks. After removing the plaster cast, an X-ray is mandatory, which will show whether the fusion has occurred correctly. If a gap is detected, then the plaster cast is applied again, but for 1-2 months, while the control of fusion occurs every month. After the end of treatment, a course of recovery takes place.

Cons of conservative treatment can be called:

  • Overdub time.
  • Constant monitoring of doctors.

Other ways. Treating old injuries

If the fracture is found only after 3 months, then it is considered old. By this time, the false joint has time to grow. This complicates the treatment. With the help of x-rays, the fracture site is found, and the presence of cystic cavities and diastasis between the fragments is also determined. In this case, the imposition of a plaster cast cannot help. One of numerous techniques is used, the most famous are:

  1. Bone grafting with a cortical graft.
  2. Bone grafting by Matti-Russe.
Scaphoid
Scaphoid

Bone grafting with cortical graft

The method was invented back in 1928. It is used with ununited fractures and false jointsnavicular bone. The dorsal beam access is used for anesthesia during surgery. Without damage, without touching the radial nerve, access to the wrist joint occurs. Dissection of its capsule helps to detect a false joint. After the end of the operation, a plaster cast is applied in the same way as described above. It takes about 14 days to get through. Then the sutures are removed and a circular bandage is used. The role of the bone plate is often performed by a spongy graft.

Bone grafting by Matti-Russe

One of the most efficient operations. But at the same time it is quite simple. For her, the field is bled, but thereby the blood supply practically does not worsen. Stabilize the scaphoid with pins. The graft is wedged into the bone. The preliminary placement of the spokes prevents the debris from mixing. Immobolization takes about 10 weeks. The needles are removed only after 8 weeks.

Fractured foot

As already mentioned, the bones of the tarsus are most susceptible to various kinds of injuries. Most often, a fracture occurs after the fall of any heavy object on the foot. Sometimes not one bone suffers, but several, since they are located in close proximity to each other and are small in size. As with the scaphoid of the wrist, treatment should not be delayed. However, the foot is much easier to treat. A direct fracture of the navicular bone occurs either due to the fall of an object with a large weight, or due to compression between others. The bones of the foot are quite diverse, their anatomy includes dozens of species.

navicular bone of the foot
navicular bone of the foot

Symptoms

It is much easier to detect a fracture of the navicular bone of the foot than the hand. With an injury of this kind, it is almost impossible to move normally, constant pain is felt. In addition, the circular movement of the foot reveals the fracture finally, the bone makes itself felt. But almost always, an injury to the navicular bone is combined with injuries to other bones of the foot and, in particular, the tarsus.

Foot bone treatment

To know the size and location of the crack, it is enough to take an x-ray in 2 projections, and not in 3, as was the case with the navicular bone of the hand. If there is no displacement, then a regular plaster cast is applied. But if it happened, reposition is performed. In the most severe cases, open reduction is performed. The plaster cast lasts an average of 4 weeks.

In conclusion, we can say that the scaphoid is more prone to injury than other bones of the wrist and foot. It takes a long time to heal and often requires surgery. However, fusion of the bone on the foot is much faster and easier. Finding a fracture on a cyst is quite difficult, and most often it happens by accident. The navicular bone of the foot in case of a crack hurts a lot.

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