Microsoft word - knee arthritis. non-operative treatments
Dr C S Waller MB BS FRCS(Ed) FRACS FA(Orth)A
Specialist Hip and Knee Surgeon
NON-SURGICAL TREATMENTS FOR OSTEOARTHRITIS of the KNEE
The knee is the largest joint in the body, and is also the joint most commonly affected by osteoarthritis.
There are many factors that contribute to the development of osteoarthritis. Such factors include family history, injury, obesity, overuse, malalignment, certain sporting activities, and occupational considerations.
Treatment for osteoarthritis of the knee depends on the stage and severity of the condition, and the age and physical requirements of the patient.
In general, the initial treatment for early osteoarthritis is non-operative
. As the
condition progresses, and it usually does, surgical treatments may be required.
Surgical treatments range from minor procedures such as arthroscopy to major
operations involving total joint replacement.
The treatments that I employ and recommend in the management of the painful, arthritic knee are personally selected for each patient, according to their symptoms, needs and requirements, and are modified as required according to the individual patient’s response.
Osteoarthritis often causes X-ray of an arthritic knee deformity and bowing of the legs Note the lack of joint space on . the medial side.
TREATMENT of the ARTHRITIC KNEE
Treatments for the arthritic knee include the following:
Conservative (non-operative) Treatments
This is always a good place to start, and often leads to satisfactory results in the treatment of the early stages of osteoarthritis. Successful conservative treatment can put off the need for surgery.
Recommended treatments include the following;
Do regular quadriceps
(thigh muscle) strengthening exercises. Leg raising or leg
extension exercises using ankle weights to strengthen the quadriceps muscle group
can help support the knee joint during load and lead to better function and reduced
symptoms. 1 to 2 kg ankle weights will usually suffice. At least 100 repetitions per leg
per day (25 at a time) are required.
Have a course of physiotherapy
. A good physiotherapist can help with
strengthening exercises and other physical techniques to help maximise knee function
Take up a low impact exercise programme
. Swimming, walking and stationary
cycling are excellent ways to keep mobile and retain function of the knees. Joint
surface cartilage is nourished by synovial fluid which requires movement for optimal
penetration to the cartilage cells in the deeper layers. Movement is vital for joint
function. Join an exercise class.
Reduce your weight
if you are overweight. More than half of Australian adults are
overweight. Excess weight places enormous stress on the knees, and leads to early
arthritis. Your body/mass index (BMI) is calculated by dividing your weight in kilograms
by your height in metres squared and should ideally be below 25, for example if you
weigh 85kg and are 1.75 metres in height your BMI will be 85/1.75x1.75 = 27.8 which
is too high and needs attention. If you are overweight you should speak to your GP for
advice on dieting, exercise, and possibly medication. It may be helpful to seek advice
from a dietician. Remember, sensible weight reduction is definitely beneficial if you
Try a course of cartilage supplements
. Glucosamine Hydrochloride and Chondroitin
Sulphate are cartilage building blocks that are available in tablet or powder form from
chemists, health food stores and some supermarkets. There are many reports of
patients benefiting from taking these compounds, and the chance of suffering side-
effects appears to be very small. The exact mechanism of action of these compounds
are very useful in treating the symptoms of arthritis
although they do not appear to affect the underlying condition. It is reasonable to take
anti-inflammatories as long as complications and side effects do not occur. Common
side effects of non-steroidal anti-inflammatory drugs (NSAID’s) include dyspepsia,
reflux oesophagitis, stomach and duodenal ulcers, fluid retention, hypertension, and
asthma in susceptible individuals. Some patients tolerate NSAID’s for years without
Cox 2 inhibitors
(Celebrex, Mobic). This is a relatively new class of drug that gives
relief of pain and symptoms of arthritis. Gastro-intestinal side effects are less common
with this class of drugs than with traditional NSAID’s. Recent reports, however, have
suggested a link between these medications and cardiac problems, so caution a
cautious approach is warranted. These medications can also cause elevated blood
pressure and should be avoided in patients with hypertension and renal disease.
Treatments delivered by injection
into the arthritic knee may reduce inflammation and relieve
symptoms for a while but do not affect the underlying disorder. Nevertheless cortisone
injections are sometimes appropriate in patients who wish to delay surgery and those
who are unfit for anaesthesia.
Visco-supplementation with hyaluronic acid
based joint fluid substitutes (e.g. Synvisc,Osteoartz
) may give relief of symptoms of arthritis for several months or
longer and may put off the need for surgery in some patients.
As the arthritis in your knee progresses the treatments listed above are likely to become less effective in relieving symptoms. In such instances surgical treatments may be required.
Surgical options range from minor operations conducted on an outpatient such as arthroscopy to major procedures such as partial or total knee replacement.
Dr C S Waller
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