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Condition

Knee osteoarthritis

Stairs are becoming more difficult, your knee takes a few steps to loosen up after sitting for a while, and on longer walks you increasingly find yourself thinking about the journey back. Perhaps an X-ray has already shown osteoarthritis. The main questions then are how to stay mobile and which treatments can really help.

Discussing a knee image
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Understanding

A closer look

Knee osteoarthritis, also known medically as gonarthrosis, is a condition affecting the whole knee joint. Imaging alone cannot show how much it affects your everyday life. Treatment takes account of your symptoms, how your knee functions and the goals you would like to achieve.

What changes within the joint

In a healthy knee, the joint surfaces, menisci, ligaments and muscles work together. Joint cartilage helps the surfaces glide with as little friction as possible and distributes load. Osteoarthritis changes how these structures work together. As well as cartilage, the bone, joint lining and other structures may be involved. The commonly used term “wear and tear” gives only a partial picture of these processes. It can suggest that the knee should be used as little as possible. For many people, however, appropriately adapted exercise remains an important part of treatment. The right level of activity depends on any current irritation and your individual starting point.

How knee osteoarthritis can affect you

Typical symptoms can include pain during activity, pain when starting to move after resting, and reduced mobility. Some people notice occasional swelling or a feeling of instability. Symptoms can fluctuate; a bad day does not automatically mean that the joint has suddenly become much worse. A concrete example helps with the assessment. Do you have to pull yourself up using the handrail when climbing stairs? Can you still get up from a low chair? Does your knee stop you walking longer distances or getting a restful night’s sleep? Details like these show the actual effect of the condition. If a joint suddenly becomes very swollen, is noticeably warm or you develop a fever, prompt medical assessment is needed. This should not simply be put down to your usual osteoarthritis symptoms.

Further information

What the examination aims to establish

First, we check whether the symptoms really fit osteoarthritis or whether other causes could be involved. This includes talking with you and examining movement, stability and the knee’s ability to cope with load. Your leg alignment and muscles may also be relevant to the assessment. An X-ray can show changes in the bone and joint space. Ultrasound may add useful information for certain questions, for example when assessing a collection of fluid or a superficial soft-tissue structure. An MRI is not automatically needed whenever the knee hurts. Every investigation should answer a question that matters for treatment.

What exercise can achieve

A stronger knee with better movement control may cope better with everyday activity, even when osteoarthritis remains visible on an X-ray. Targeted exercise and strengthening are therefore important non-surgical measures. The level of activity should be appropriate for your current condition. To begin with, a shorter walk with breaks or a different form of exercise may be more suitable than your usual sport. What matters is a gradual build-up that makes sense to you and that you can keep up regularly. If exercises cause persistent severe symptoms, the plan needs adjusting. If you are overweight, achievable weight loss can help reduce the load on the joint. Such advice should fit your circumstances. A small, realistic step is more helpful than general advice that is difficult to put into practice in everyday life.

Other non-surgical options

Depending on your symptoms, aids, orthoses or medicines for pain relief may be considered. They have different purposes: an aid may, for example, make certain activities easier, while a medicine may temporarily relieve symptoms. The choice must take account of any other medical conditions and medicines you already take. Treatment should be linked to a concrete question: is walking easier? Has the swelling reduced? Can you do your exercises more comfortably? Such goals help assess the effect and the demands a treatment may involve. If a measure does not provide sufficient benefit, its continued use should be reconsidered.

Understanding and weighing up knee injections

Various injection treatments are offered for knee osteoarthritis. They differ in how they work, the evidence supporting them and their risks. The fact that a substance is injected directly into a joint does not in itself tell us how large or lasting its benefit will be. The services at OrthoCoast include hyaluronic acid and ACP or PRP. Whether any of these options can be justified in your case must be assessed in light of the diagnosis, measures already tried and your expectations. Benefits, uncertainties, possible complications and costs you would need to pay yourself should all be discussed together beforehand. Such treatment should not be equated with proven regrowth of joint cartilage. The individual pages on these treatments explain the differences in more detail. Exercise and other suitable core measures remain part of the decision.

When surgery may become an option

If pain and limitations remain severe despite appropriate non-surgical treatment, a surgical assessment may be helpful. A decision about joint replacement depends on several factors, including symptoms, loss of function, findings, your general health and your personal expectations. An abnormal X-ray alone does not determine the timing. Equally, surgery does not have to be avoided as a matter of principle if, after careful consideration, it is the right option. You should understand which problem the procedure is likely to improve and what demands and risks it involves. With suitable non-surgical treatment, it may be possible to improve symptoms enough that a joint replacement is not needed for the time being. How long an operation can be postponed varies from person to person. We therefore do not promise that surgery can be postponed for a set period. Instead, we discuss what is realistic for your knee and when reassessment would be helpful.

Assessing treatment against your goals

Perhaps you would like to walk a particular distance again or get out of the car without help. Identifying these goals at the start makes it easier to assess over time whether treatment is making a difference to you. Osteoarthritis follows an individual course. Symptoms can change, and a plan that once suited you may not remain appropriate indefinitely. Let us know if you cannot put a measure into practice, experience side effects or feel unsure. This information is part of your care and helps us choose the next step sensibly.

Your contacts at OrthoCoast

Your main contacts for non-surgical joint and osteoarthritis treatment are Priv. Doz. Dr. med. habil. Richard Kasch, Dr. med. Christoph Jährling and Björn Weidemann. They also assess whether ACP or PRP and hyaluronic acid are appropriate and provide these treatments. If you would like to discuss the options for your knee, contact us through “Appointments & enquiries”. Bring existing reports and details of previous treatments. The doctor profiles show their respective qualifications, and the overview of our doctors provides information on cover arrangements.

Our doctors in this specialty

Meet our doctors who treat joint symptoms here. What matters to you when moving and in everyday life is part of the conversation.

Frequently asked questions

Should I put as little weight as possible through my knee if I have osteoarthritis?
Keeping activity to a minimum over the long term is generally not a good basis for maintaining strength and mobility. Appropriately adapted activity is helpful. With a severe acute flare-up, an injury or new warning signs, we first need to establish what level of activity is possible.
Why does my knee hurt so much when the X-ray shows only a little osteoarthritis?
Changes on imaging and symptoms do not always closely correspond. The examination must also consider other structures and possible causes. The extent to which you are affected remains relevant to planning treatment.
Do I need an MRI to be on the safe side?
Not automatically. An MRI is helpful when it can answer a specific additional question and the result may affect your care. In a typical case of osteoarthritis, the consultation, examination and, where appropriate, an X-ray can already provide key information.
Which injection is best for knee osteoarthritis?
There is no single best injection for everyone with the condition. The decision depends on your situation and the evidence for the particular treatment. Ask for the benefits, uncertainties, alternatives, risks and costs to be explained before you decide.
Can exercise definitely prevent me from needing a knee replacement?
Exercise can improve symptoms and function, but it does not guarantee that a joint replacement will never be needed. It is a useful part of treatment, and its benefit should be assessed against your ability to manage activity and your quality of life.
When should a swollen knee be examined promptly?
Sudden marked swelling, noticeable warmth, fever or an inability to bear weight calls for prompt medical assessment. After an injection, too, seek medical advice promptly if severe symptoms are getting worse.
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