A Patient's Guide to Olecranon Bursitis
Introduction
Olecranon bursitis is inflammation of a small sac
of fluid located on the tip of the elbow. This inflammation
can cause many problems in the elbow.
This guide will help you understand
- how olecranon bursitis develops
- why the condition causes problems
- what can be done for olecranon bursitis
Anatomy
Where is the olecranon bursa, and what does it do?
A bursa is a sac made of thin, slippery tissue.
Bursae occur in the body wherever skin, muscles, or
tendons need to slide over bone. Bursae are lubricated with
a small amount of fluid inside that helps reduce friction
from the sliding parts.
The olecranon bursa is located between the tip, or
point, of the elbow (called the olecranon) and the overlying
skin. This bursa allows the elbow to bend and straighten
freely underneath the skin.
Related Document: A
Patient's Guide to Elbow Anatomy
Causes
How does olecranon bursitis develop?
Bursitis is the inflammation of a bursa. The
olecranon bursa can become irritated and inflamed in a
number of ways.
In some cases, a direct blow or a fall onto the elbow can damage the
bursa. This usually causes bleeding into the bursa sac,
because the blood vessels in the tissues that make up the
bursa are damaged and torn. In the skin this would simply
form a bruise, but in a bursa blood may actually fill the
bursa sac. This causes the bursa to swell up like a rubber
balloon filled with water.
The blood in the bursa is thought to cause an
inflammatory reaction. The walls of the bursa may thicken
and remain thickened and tender even after the blood has
been absorbed by the body. This thickening and swelling of
the bursa is referred to as olecranon bursitis.
Olecranon bursitis can also occur over a longer period of
time. People who constantly put their elbows on a hard
surface as part of their activities or job can repeatedly
injure the bursa. This repeated injury can lead to
irritation and thickening of the bursa over time. The
chronic irritation leads to the same condition in the end:
olecranon bursitis.
The olecranon bursa can also become infected. This may
occur without any warning, or it may be caused by a small
injury and infection of the skin over the bursa that spreads
down into the bursa. In this case, instead of blood or
inflammatory fluid in the bursa, it becomes filled with pus.
The area around the bursa becomes hot, red, and very
tender.
Symptoms
What does olecranon bursitis feel like?
Olecranon bursitis causes pain and swelling in the area
at the tip of the elbow. It may be very difficult to put the
elbow down on a surface due to the tenderness. If the
condition has been present for some time, small lumps may be
felt underneath the skin over the olecranon. Sometimes these
lumps feel as though something is floating around in the
olecranon bursa, and they can be very tender. These lumps
are usually the thickened folds of bursa tissue that have
formed in response to chronic inflammation.
The bursa sac may swell and fill with fluid at times.
This is usually related to your activity level, and more
activity usually causes more swelling. Over time the bursa
can grow very thick, almost like an elbow pad on the
olecranon.
Finally, if the bursa becomes infected, the elbow becomes
swollen and very tender and warm to the touch around the
bursa. You may run a fever and feel chills. An
abscess, or area of pus, may form on the elbow. If
the infection is not treated quickly, the abscess may even
begin to drain, meaning the pus begins to seep
out.
Diagnosis
How do doctors identify the condition?
The diagnosis of olecranon bursitis is usually obvious
from the physical examination. In cases where the elbow
swells immediately after a fall or other injury to the
elbow, X-rays may be necessary to make sure that the elbow
isn't fractured. Usually chronic olecranon bursitis is also
easy to diagnose without any special tests.
If your doctor is uncertain whether or not the bursa is
infected, a needle may be inserted into the bursa and the
fluid removed. This fluid will be sent to a lab for tests.
The results are used to determine whether infection is
present. If so, the type of bacteria that is causing the
infection is identified. Your doctor will use this
information to know what antibiotic will work best to cure
the infection.
Treatment
What can be done for olecranon bursitis?
Nonsurgical Treatment
Olecranon bursitis that is caused by an injury will
usually go away on its own. The body will absorb the blood
in the bursa over several weeks, and the bursa should return
to normal. If swelling in the bursa is causing a slow
recovery, a needle may be inserted to drain the blood and speed up
the process. There is a slight risk of infection in putting
a needle into the bursa. Animation of draining the bursa
Chronic olecranon bursitis is sometimes a real nuisance.
The swelling and tenderness get in the way and causes pain.
This can create a hardship both at work and during
recreational activities. Treatment usually starts by trying
to control the inflammation. This may include a short period
of rest. Medications such as ibuprofen and aspirin may be
suggested by your doctor to control the inflammation and
swelling. An elbow pad might be useful in making it easier
to put the elbow on hard surfaces.
If the bursa remains filled with fluid, a needle can be
inserted and the fluid drained. During the drainage procedure, if there
is no evidence of infection, a small amount of cortisone can
be injected into the bursa to control the inflammation.
Again, there is a small risk of infection if the bursa is
drained with a needle.
Your doctor may also prescribe professional
rehabilitation to evaluate and treat the problems that are
causing your symptoms. Your physical or occupational
therapist may suggest the use of heat, ice, and ultrasound
to help calm pain and swelling. You may be given tips and
strategies to avoid repetitive elbow motion and to do your
activities without putting extra pressure on your elbows.
If an infection is found to be causing the olecranon
bursitis, the bursa will need to be drained with a needle,
perhaps several times over the first few days. You will be
placed on antibiotics for several days.
SurgeryBursa Drainage
If the infection is slow to heal, the bursa may have to
be drained
surgically. This method is different than the
nonsurgical drainage mentioned earlier. Surgery to drain the
bursa begins with an incision to open the bursa. The skin
and bursa are kept open by inserting a drain tube into the
bursa for several days. This allows the pus to drain and
helps the antibiotics clear up the infection. Bursa
Removal
Surgery is sometimes necessary to remove a thickened
bursa that has not improved with any other treatment.
Surgical removal is usually done because the swollen bursa
is restricting your activity.
To remove the olecranon bursa, an incision is made over the tip of the elbow. Since the
bursa is outside of the elbow joint, the joint is never
entered. The thickened bursa sac is removed, and the skin is
repaired with stitches. Your elbow may be placed in a splint
to rest the elbow and prevent it from moving for a few days.
This allows the wound to begin to heal and prevents bleeding
into the area where the bursa was removed.
Some types of bursae will grow back after surgery,
because the skin needs to slide over the olecranon smoothly.
The body forms another bursa as a response to the movement
of the olecranon against the skin during the healing phase.
If all goes well, the bursa that returns after surgery will
not be thick and painful, but more like a normal
bursa.
Rehabilitation
What should I expect after treatment?
Nonsurgical Rehabilitation
Chronic olecranon bursitis will usually improve over a
period of time from weeks to months. The fluid-filled sac is
not necessarily a problem. If it does not cause pain, it is
not always a cause for alarm or treatment. The sac of fluid
may come and go with variation in activity. This is
normal.
After Surgery
If surgery is required, you and your surgeon will come up
with a plan for your rehabilitation. You will have a period
of rest. You will also need to start a careful and gradual
exercise program. Patients often work with a physical or
occupational therapist to direct the exercises for their
rehabilitation program after surgery. |