Bone Fractures: Causes and Symptoms

'Fracture' is a medical term for a broken bone. According to an estimate, an average person has two fractures within their lifetime. When a force exerted is stronger than the bone itself, it can lead to a fracture. The risk and chance of fracture depend on your age. With age, bones tend to become brittle and, hence, a fall that would have been potentially harmless years ago can lead to a broken bone at a later age.

There are many types of bone fractures, but the main types are:

Closed fracture: A fracture in which the bone breaks but does not tear through the skin

Open fracture: Where the broken bone punctures through the skin and protrudes out. There's a greater chance of bone infection in an open fracture

Displaced fracture: In this type of fracture the bone snaps into more than two parts

Nondisplaced fracture: The bone cracks partly or wholly but it does continue to move

Some of the common signs and symptoms of a fracture are:

- Bruising and swelling of the bones
- Open fractures marked by protruding bones from the skin
- Loss of locomotive and functional ability of the injured area
- Deformity of the injured area
- Pain in the event of movement of the injured area

A fracture can be caused by a number of reasons, and they are:

- Injuries and accidents
- Falls and slips
- Wear and tear through overuse
- Sport injuries
- Fist fights and brawls
- Osteoporosis (a disease which causes bones to weaken in adults)
- Osteomalacia ( a disease caused due to softening of your bones, which is caused by a vitamin D deficiency.) Soft bones are more likely to bow and fracture than are harder, healthy bones.

Note:

Osteomalacia is not the same as osteoporosis. Osteomalacia occurs due to a defect in the bone-building process while osteoporosis develops due to a weakening of existing bones.



Bone Fractures: Causes and Symptoms

A small piece of bone is known as a fragment and it is very common that an avulsion fracture also tends to damage the protrusions of bone to which the tendons attach. This basically means that the tendon or ligament will come away from the bone and it will take a small piece of bone with it. It is sometimes very hard to find out what type of injury you have and this is why knowing the causes and symptoms of an avulsion fracture are very helpful in determining exactly how severe the injury is. 

Here are the causes of an avulsion fracture:

Explosive landing: Athletes who tend to jump or land with great impact tend to get these most commonly. Therefore, it is crucial for your health that if you participate in such sports, you do follow the correct method of jumping.
Explosive extension: Similar to how an athlete landing ferociously can get an avulsion fracture, someone who is extending the legs very violently and explosively during an exercise can also get an avulsion fracture. This is because the bone getting extended could very well damage the protrusions to which the tendons are attached. 
Symptoms
These are the two main causes of an avulsion fracture. There are not many symptoms of an avulsion fracture. This is because an avulsion fracture can only be determined by an MRI or by an X-ray scan. Therefore it is nearly impossible to diagnose that you have an avulsion fracture without looking at the results of the tests performed on the part of your body. However, the way you got the fracture and especially the details of it are very good indications of whether you have an avulsion fracture or not.

Avulsion Fracture - Common Causes Behind it

A bone may break due to several reasons starting from a fall or an injury or a condition like osteoporosis that makes the bones brittle and leaves them susceptible to fractures. The fracture usually takes a few weeks to get fixed as the broken bones grow back together with the help of various forms of treatment including a plaster and sling applied by the orthopaedic specialist or general physician. Find out more about how bones heal with this article.

Types of fracture: Before we get to the subject of how bones heal, it is important to understand the various kinds of fractures recognised by doctors. The first kind is the complete fracture where the bone breaks into two distinct parts. The next kind is the greenstick fracture or hairline fracture where there is simply a crack on one side of the bone due to pressure. Further, there is the single fracture which occurs where there is breakage of the bone only in one place. A bowing fracture may occur when the bones bend instead of breaking completely. This kind of fracture is pretty common for children. The comminuted fracture happens when the bone is crushed or broken in many places. And finally, the open fracture is one where the bone ends up protruding from the skin.

Treatment: Once you have broken a bone, the doctor will conduct an X ray which will help in understanding the type of fracture and the extent of the damage caused. The doctor will then apply a cast and plaster that will help in bringing the bone back to its normal position so that it grows back with the main bone. In case the bone has broken into various parts or there is a complete fracture, then the doctor may even insert metal pins.

Natural healers: Bones are known as natural healers that can heal with the process of new cells and vessel production which rebuilds the bone by covering the broken ends and closing the gap caused due to the damage or the crack.
Clot: Once a bone has broken, a blood clot or a callus forms in the surrounding region, which kind of acts towards sealing the area.
Threads: Once these clots have formed, the new threads of the bone cells begin to grow slowly from the ends of the broken bones. This will grow on both sides of the affected and fractured bones, almost as if drawing a line from one broken end to another.
Absorption: Finally, the callus will be absorbed by the new cell and the gap will close.
See a doctor is you are experiencing any noticeable symptoms that may point towards bone fractures.

Broken Bones - How Do They Heal?

Fractures are simply a break in a bone. They can be caused due to injury, (traumatic fractures) or a pre-existing condition like osteoporosis that causes weakening of bones (pathologic fractures). There are many ways to classify fractures. All fractures fall into the major categories of simple and compound fractures. Simple fractures are fractures where bones remain inside the skin and don t jut out. They are also called closed fractures.

Compound fractures, also called open fractures, are broken bones that penetrate through the skin. These types expose the bone and deep tissues to the environment. Compound fractures are more serious of the two. The healing here may be affected due to deep infections for which antibiotics need to be used. There are many different sub types of fractures and we re only going to skim through them here.

Comminuted fractures: Severe fractures in which a bone breaks into several smaller pieces.
Avulsion fractures: A small piece of bone is completely torn off from the main bone due to fierce pulling off a part of the body.
Other types of fractures are characterised by the many different angles the bone breaks into like transverse, oblique and spiral fractures.

Diagnosis
When a bone is broken there are symptoms like swelling that doesn t subside on its own and pain. In such a case it s imperative that one goes to a doctor for a diagnosis. Doctors can usually recognise most fractures by examining the injury and taking an X-ray. The X-ray also provides a clear idea about the type of fracture and the degree of displacement of the bone. And, it s important that the patient doesn t wait too long before approaching a doctor. This is because bones begin to heal very quickly after a fracture and the bone tissue will heal using any tissue available. This can lead to a misalignment of broken pieces of bone and cause disability and loss of function.

There are cases when X-ray may not show a fracture. This is especially common in fractures in the hip and wrist in older people. For diagnosing these, doctors will get some other tests done such as a computed tomography (CT) scan, magnetic resonance imaging (MRI), or a bone scan.

Treatments
Fractures have to be treated by doctors. The doctors set the fractured bones in their proper place and hold them there so that they can heal. Setting a bone is called "reduction." Reduction without surgery is called "closed reduction." But if the fracture is serious, it s going to require surgery with bone repositioning, called open reduction.

In extreme cases, pins, plates, screws, rods, or glue are used to hold the fractured bones in place, inside the body. Once the bone abutment has been treated, the bone is immobilised to allow the broken pieces to heal. In most cases, the fractured part is set in a rigid cast. The fractured ends of the bone can be fixed into place using metal pins connected to an external frame. This is removed after the bone has healed.

Fractures - How To Diagnose Them?

A bone fracture occurs when a strong external force is applied on the bones causing it to break. It is an extremely painful condition that results in days of immobility and rest. There are several reasons which can result in bone fracture, some of them being:

1. Injuries caused in sports
Any sport requires and demands extreme physical exertion and participation. Being involved in any sport therefore automatically increases your risk of incurring injuries. Bone fractures therefore are mostly reported during sports.

2. Osteoporosis
Due to the deficiency of calcium, the bones of both men and women tend to get weak and more susceptible to fracture and breakage. It is one of the primary causes that lead to bone fracture.

3. Osteomalacia
This also refers to a condition wherein the bones become weak and brittle. Much like osteoporosis, osteomalacia too significantly contributes to instances of bone fractures.

4. Osteosarcoma
This is a rare form of bone cancer that most often develops either near the femur or near the shinbone. An instance of this form of bone cancer is most often found in children and weakens the bone, consequently leading to fractures.

Though there may be different causes of broken fractures, its symptoms remain similar. Some of them are-

1. Swelling
One of the most common symptoms of bone fracture is perceptible swelling. If any of your bone is fractured, that particular part will be visibly swollen.

2. Deformity
Bones give your body the shape it has, thereby, any fracture anywhere would inevitably manifest itself as a clear deformity of that particular part.

3. Extreme pain
It goes without saying that a bone fracture would entail excruciating and extreme pain. This pain sharply increases with mobility thereby necessitating complete rest.

4. Temporary loss of function
The part of the body where the bone is broken temporarily becomes dysfunctional. For instance, if the bone in your hand is broken, you will find it extremely difficult to move and do any work with it.

Causes and Symptoms of Bone Fracture

Broken bone is commonly known as bone fracture a d it occurs when an exorbitant amount of force is applied causing the bone to split or shatter. While some minor fractures lead to cracks and crannies, others may lead to complete breakage of the bones. Despite being hard, bones are formed in such a way that they can absorb pressure to only a certain extent, beyond which they break. Statistically, the incidence of broken bones are most common in children and in old age people.

Causes of Bone Fracture
Bone fracture can be caused due to a number of reasons; both intentional and accidental. Some of them include:
1. Accidents and injuries: Sports injuries, being hit by a car and tripping and falling are some of the typical episodes.
2. Old age: Diseases such as osteoporosis and brittle bone disease are common in aged people. As bones tend to become more fragile among the aged, they are at a greater chance of bone fractures.

Type of bone fractures
Primarily bone fractures are of four types, based on the way the bone splits. They are:

Complete fracture: This type of fracture refers to a complete breakage of the bone wherein the fracture may occur at various parts of the bone.
Incomplete fracture: In this type of fracture, the bone partially breaks instead of splitting entirely.
Compound fractures: This is a type of a fracture wherein the bone breaks past the skin. It is also known as an open fracture.
Simple fracture: In this type of a fracture, the bone breaks without causing an open wound on the skin.
Treatment of bone fractures
In case of a broken bone, the immediate course of action would be to reach for the first aid box. This can be done to stabilize the bone prior to hospitalization. Icing the injury, elevating the injured area to prevent further swelling and covering the wound with bandages are common measures. In many cases, people also make household splints (made of newspapers) to keep the bone stabilized. Hospitalization and especially surgery, can be also opted for in case of severe fractures.

Bone Fracture - Understanding the Types + Causes

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