WHO MAKES THE
DECISION?
Who decides whether you will have a total hip replacement
operation? Curiously enough, you are the boss who decides!
- Your surgery depends principally on your willingness to
comply with the long, demanding post-operative physical therapy and rehabilitation program
that follow the surgery.
- All other considerations (your age, disease character, etc.)
are secondary.
- The decision to have the operation of an arthritic joint is
a highly personal matter, and only you can make that decision, together with your surgeon.
PAIN - THE CARDINAL SIGN
The surest guide to determine the need for a
total hip replacement is the severity of the pain in your hip joint. Although you
suffer severe pain, you may still be unable to describe the pain, not even pinpoint its
location.
"I have been suffering from acute pain
for a few years. I never could pin point where that pain was coming from. Time and time
again I have went to my family doctor and was receiving x-rays on my knee and thigh
area but nothing was found, although I still felt constant pain. Finally, I went to an
orthopedic surgeon and demanded having a x-ray of my whole body. But just
getting x-ray of my hip was all that was needed. Now, I have had my left hip
replaced and my pain is gone".
Most patients with hip disease
feel groin or buttock pain, but other patients may experience pain in the lover
back, on the inside or backside of the thigh or in their knee entirely.
You must, however, be
aware that not all pain that you feel in your hip, groin, buttock, and thigh area is
provoked by a hip joint disease.
The pain in this area may be caused by
low back problems, spinal stenos, and
prolapsed intervertebral disc
encroachment of some of the nerves around
the hip joint
inflammation in tendons and bursa ( sacs
with fluid lying between tendons and bone) around the hip joint
pain in the hip and thigh area may be a
projection from vascular disease (abdominal aorta aneurysm, intermittent claudicatio)
The character of the hip pain depends on
the type of the hip disease. It is related to the patient activity in
osteoarthritis, it varies with the disease activity in the rheumatoid arthritis, and it is
constant in the avascular necrosis of the femoral head or in a tumor.
THR - AN OPERATION TO
RELIEVE YOUR PAIN
Total hip replacement operation is most successful in just
relieving pain. Therefore, the more pain you have the greater are the chances that the
operation will be a success.
Is your
pain like this?
You suffer severe pain that impairs not only your work and
recreation, but also ordinary activities of daily living
The pain does not disappear after a longer period of rest
You notice disturbing pain also when sitting or standing
still
Pain in your hip is so severe that it impairs you sleep
The pain killing medicines do not work or work only for a
short time
Together with pain you also notice increasing painful
stiffness in the hip joint, that further impairs your ordinary activities of daily living
Several months treatment (anti-inflammatory medicines,
physiotherapy, and like) did not change the pain
If your pain is like this and
the X-ray pictures demonstrate impairment of your hip joint, then you are a candidate for total hip replacement and you should
seriously consider the surgery.
Can you tolerate your pain?
"I researched the prospects of a total hip surgery and
I spoke with people in the know and I have decided to postpone my surgery until I am in
more pain. I still can get a good night sleep and although I still have problem getting my
sock and shoe on, I can have a good walk with a stock. Hearing some of
these crazy stories I now understand that a lot of weird things can go wrong after
surgery. I'm uncomfortable with my hip, but I can put up with a whole lot more if
necessary."
Remember that the total hip replacement is no good to treat
minor pain and occasional discomfort in your hip. Moreover, total hip operation is a
major surgery and as such always associated with certain risks. Therefore, ask yourself
these questions:
Do you experience pain in the hip only after long periods
of strenuous activity, for example after playing soccer or after cross-country jogging?
Does this pain disappear after a shorter period of rest (30
minutes or so)?
Is the pain bothersome, but not severe enough to require
pain killers?
Is the pain bothersome but you can always relieve it by
pain killers or NSAIDs?
Do you notice the pain only during and shortly after
physical activity, but never during rest or sleep?
Do the X-ray pictures of your hip show only minor
impairment?
If you answered yes to these six questions,
the chances are that you dont need surgery - at least not for the time being.
In the meantime, you should modify your activities to ease
the stress that you put on the painful hip joint. Shorten the walk, or try bicycling,
stationary or mobile. The best all-round exercise is swimming. A physiotherapist can
prescribe an exercise program for you.
Why should
you wait?
Patients operated on for minor hip problems are more
often dissatisfied with the results of their total hip operation
Total hip replacement is major surgery and entails certain
risks. Thus, it should not be undertaken unless there are compelling reasons for it.
Will the operation be more
difficult if you wait?
Usually not, especially if you are suffering from
idiopathic osteoarthritis of the hip joint (wearing out disease of the hip joint). But
there are certain diseases that may destroy the hip joint too much if you wait too long
(rheumatoid arthritis, e.g.). So ask always your surgeon whether the operation will be
more difficult if you postpone it.
How important are X-ray pictures?
How much importance should you put on the X-ray pictures
for your decision to be operated on? This depends on the character of your hip joint
disease. Remember that a X-ray picture is a meager shadow of reality. The X-ray picture
cannot tell how much pain and other discomfort you really have. In some very painful hip
joint diseases (avascular necrosis, e.g.), the conventional X-ray picture cannot
even discover any disease in the hip joint initially.
Statistics even show that about 40 % of all patients with
signs of osteoarthritis of the hip joint on their X-ray pictures do not need any hip
operation.
Should you wait for development of
better artificial hip joints?
If you hope that the technology of artificial joint
replacement will improve with time then it is good to know that the rate of progress in
this area is uncertain. Although there is a steady stream of "new" total hip
prostheses entering loudly the market, equally many are silently withdrawn.
The "old" models of total hip prostheses
introduced 20 - 30 years ago are still in use today and perform very well (Charnley,
Stanmore). By the way, this is a big paradox of the artificial joint science - can you
think of 30 years old pacemakers, artificial eye lenses, etc. still to be used by today
doctors?
If your pain and disability are severe, than there is no
point in waiting for progress of the technique.
Should you wait for bio-engineered
hips?
The bio - engineering science makes certainly a very good
progress in preparing living cartilage tissues - at least as heralded in the media. Should
you wait until these bio-engineered cartilage cells be available to be implanted into your
worn out hip joint?
You should know two facts. First, as yet the bio
-engineered cartilage cells failed to heal badly worn joints. Second, only about 20
% of all results in this field have been published. Much of the development in this
field is financed by private for-profit companies that often decide which results should
be published.
Can osteoarthritis of your hip
improve without operation?
This is possible, but the progress of osteoarthritis
is not predictable, it varies greatly from person to person. The pain may become
unbearable within six months for one person, yet drag on at a tolerable level for several
years in another person who has the same degree of arthritis on X-ray pictures.
SPECIFIC HIP
CONDITIONS
Patients with fused hip joints
can they have a functioning total
hip replacement?
It is possible, but it is a difficult
operation, best carried out by the surgeon who is experienced in the technique.
The fusion of a destructed hip joint was
treatment of choice up to 1970's. Many of these patients have excellent function in the
limb with totally stiff hip, if the fusion placed the thigh in right position.
Patients with a hip fused in faulty
position developed soon pain in low back, opposite hip and knee.
Many hips fused spontaneously after a
bacterial hip infection, and these usually have fused in a bad position. Sometimes, the
patients are unknowing of this fact.
Usually, the young patients wish to convert
their fused hip to the total hip replacement. This put another important aspect into the
decision: the total hip should last very long time.
For the success of the operation one factor
is important: preserved buttock (abductor )muscles. (The muscles that put the limb
to the side from the middle line). Testing the muscles before the operation is impossible,
so that the surgeon usually asses the state of abductor muscles directly during the
operation.
If the surgeon finds that the abductor
muscles are missing, scared or damaged in another way, he/ she may decide not to continue
with a total hip replacement.
This possibility must be discussed with the
patient before the operation.
Studies show that the conversion of the
fused hip into the total hip replacement is fraught with following risks:
The operated length may remain too short
(it is usually short already before the surgery)
The lengthening of the leg by total hip
surgery may cause damage to the limb nerves (specifically to n. ischiadicus)
The weak hip musculature may limit
the ability to walk without support
The total hip may dislocate
The quiet infection may flare up after the
total hip surgery
The patient should discuss all these risks
with his / her surgeon before the operation
The results:
A recent large study followed up 45 patients who have
conversion of fused hips to total hip replacement.. Their hip joints had been fused 36
years (mean)! After a mean 9 years, only 3 % of the total hip replacement failed. These
patients could bent the hip up to 90 degrees. Their walking ability depended on the
function of their buttock muscles. One patient developed nerve damage and one patient had
a flare up of a tuberculous infection in the hip. (Hamadouche 2001).
(Note: other, previous studies showed worse results).
WHO CANNOT HAVE A TOTAL HIP
SURGERY
- Patients with recent (
arbitrary < 9 months) heart infarct and stroke
- Patients with uncontrolled diabetes, lung, kidney, or other
systemic disease
- Patients with ongoing or recent infection in the hip joint
area
- Patients with severe paralysis of muscles around the hip
- Patients with severe circulation problems (painful
claudicatio) in the extremity
Other reasons why surgeons may
abstain from operation
Many surgeons will hesitate to carry out total hip
replacement in
- overweight patients ( > 100 kg)
- persons with alcohol abuse
- people with dementia
(Mancuso
et al 1997)
OTHER IMPORTANT FACTORS
Other important factors may influence
your decision to have a total hip replacement and your satisfaction with the operation.
These factors include
For more information about some of these
factors, please visit the section
Are
you too young to have a THR?
Before you take any action, please read the Disclaimer
References:
Mancuso et al. Indications for total hip and total knee
arthroplasties. J Arthroplasty, 1997; 11: 34 - 46).
Hamadouche et al. J Bone Joint Surg-Am,
2001;83-A:992-8
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