Steroid Knee Injections for Arthritis and Joint Pain 

At The West London Knee & Hip Clinic, our consultant-led team offers steroid knee injections as an effective treatment for managing joint pain, inflammation and stiffness caused by conditions such as osteoarthritis, rheumatoid arthritis and bursitis. 
 
Steroid (cortisone) knee injections are a well-established option for patients looking to avoid or delay surgery and achieve pain relief quickly. 
 
Struggling with knee pain? 
Book a consultation at our Mayfair, Chiswick, Earl’s Court or Brentford clinic to discuss whether a steroid injection could help you move more comfortably. 

How Steroid Knee Injections Work 

Steroid injections, sometimes called cortisone injections, use corticosteroid medicine to reduce inflammation within the affected joint. When injected directly into the knee joint, they can help control swelling, ease pain and improve mobility. 
 
We perform all knee joint injections under ultrasound guidance and with local anaesthetic to ensure precise delivery and maximum comfort. 

Benefits of Steroid Knee Injections 

Quick reduction of inflammation and swelling 
Significant pain relief within a few days 
Can restore movement and allow you to continue physiotherapy 
May reduce the need for stronger painkillers or other medicines 
 
For many patients, steroid knee injections form part of a comprehensive treatment plan that can include physiotherapy and other injections such as hyaluronic acid or PRP. 

Is This Procedure Right for You? 

Steroid knee injections are a common treatment for: 
Osteoarthritis flare-ups 
 
Rheumatoid arthritis inflammation 
Bursitis around the knee 
Persistent pain not fully controlled by tablets or other treatments 
 
Your specialist knee surgeon will advise if an articular injection is the best next step or if other treatments should be considered first. 

The Procedure: What to Expect 

Your steroid injection will take place in our clinic as an outpatient procedure: 
 
Your doctor will clean the skin and apply local anaesthetic to numb the injection site. 
Using ultrasound guidance, the steroid medicine is injected into the knee joint. 
The whole procedure usually takes under 20 minutes and you can go home shortly afterwards. 
 
Some patients feel brief discomfort during the injection, but this settles quickly. 

Pain Relief and Recovery 

Many patients feel improvement in pain and stiffness within 48 hours, with peak benefit at around one to two weeks. Relief can last from several weeks to a few months, depending on your condition. 
 
Steroid injections can be repeated if needed, but your consultant will limit the number each year to reduce the risk of side effects. 

Possible Side Effects and Risks 

Knee injections are safe and well tolerated for most patients. However, as with any medical procedure, there are some risks and common side effects to be aware of: 
 
Mild pain or bruising at the injection site 
Temporary flare-up of pain in the first 24–48 hours 
Rare risk of infection in the joint 
Rare allergic reaction to the local anaesthetic or steroid medicine 
Repeated injections may, over time, weaken cartilage — this is why careful medical advice is essential 
 
Steroid injections are not anabolic steroids used for muscle building. They are anti-inflammatory medicines designed to treat joint pain. 

How Steroid Injections Compare to Other Treatments 

Steroid knee injections provide rapid inflammation control, while treatments like hyaluronic acid or Arthrosamid may offer longer-lasting cushioning effects for knee osteoarthritis. 
 
Your consultant will discuss whether a cortisone injection, hyaluronic acid, PRP, or another approach is best for your knee pain and overall health. 

Booking Your First Injection 

At The West London Knee & Hip Clinic, all knee joint injections are performed by experienced specialists, using ultrasound for accuracy and local anaesthetic for comfort. The cost for an ultrasound-guided steroid injection into the knee is £500. 
 
We offer appointments at our Mayfair, Chiswick, Earl’s Court and Brentford locations. If you are struggling with persistent knee pain and would like to discuss whether a steroid injection might help, book a consultation with our team today. 

Related Treatments 

Steroid knee injections are just one of several effective options for managing knee pain and inflammation. You may also be interested in learning more about: 
 
- helps lubricate the joint and reduce friction, offering longer-term cushioning for osteoarthritis. 
 
- uses your body’s own platelets to support healing and reduce pain from cartilage or tendon damage. 
 
- an innovative hydrogel injection providing longer-lasting pain relief for knee osteoarthritis. 
 
Your specialist will help you decide which treatment or combination is best suited to your condition and lifestyle. 

Ready to move comfortably again? 

Book your appointment with The West London Knee & Hip Clinic and take the first step towards better joint health. 

Frequently Asked Questions 

Most patients feel some pain relief within 48 hours. Maximum benefit is usually felt after one to two weeks. 
Relief can last from a few weeks up to several months, depending on your condition and how your knee responds. 
To reduce the risk of side effects, we typically recommend no more than 3 to 4 steroid injections per joint per year. 
Yes, they are safe when performed by a specialist using ultrasound guidance. Minor side effects like temporary pain at the injection site are common but usually mild. 
Rest the knee for 24–48 hours and avoid strenuous activities. You can usually return to light daily activities shortly after. 
Steroid injections reduce inflammation but do not cure arthritis. Many patients combine them with physiotherapy and other treatments for longer-term results. 
Possible risks include infection (rare), allergic reaction, temporary flare-up of pain, and with frequent injections, potential cartilage weakening. Your consultant will discuss this with you. 
Yes, but if a local anaesthetic was used, your knee may feel numb for a short time. Arrange for someone to drive you if you feel unsteady.