Arthrosamid Injection

Arthrosamid is an innovative and novel type of injection treatment used to treat knee arthritis.  Arthrosamid acts within the knee to help cushion the joint, reduce pain and decrease stiffness to improve knee function.

It integrates with the knee joint lining (synovium) to improve lubrication and protect the joint.

Arthrosamid is a non-biodegradable hydrogel injection consisting of 97.5% water with a 2.5% cross-linked polyacrylamide backbone and has been used for a variety of medical indications over the last 20 years.

Arthrosamid Treatment Procedure

Treatment Procedure

Arthrosamid is injected as a one-off procedure under ultrasound guidance by one of our team of experienced consultant doctors, in one of our outpatient clinics, without the need for admission to hospital.

The doctor will discuss the benefits and risks associated with the treatment and will complete a written consent form with you. You will be given two antibiotics before the procedure.

Local anaesthetic is used to numb the area prior to the injection and any excess fluid will be aspirated (removed) from the knee joint.  The Arthrosamid is then injected under ultrasound visualisation into the knee joint.

Arthrosamid Procedure Step 1

Step 1

Prepare the knee by cleaning it thoroughly before administering the Arthrosamid injection.

Arthrosamid Procedure Step 2

Step 2

Use ultrasound guidance for precise Arthrosamid injection placement.

Arthrosamid Procedure Step 3

Step 3

Administer Arthrosamid using a needle to perform the treatment.

Arthrosamid Procedure Step 4

Step 4

After removing the needle, apply a plaster to cover the injection site for protection.

Arthrosamid Post Treatment Instructions

Post-Treatment Instructions

Following the procedure you may feel some discomfort when the local anaesthetic wears off but otherwise the injection should be well tolerated. After the injection our clinicians will advise you to look out for any signs of infection, specifically looking for warmth, tenderness, swelling, oozing at the site of the injection or systemic symptoms such as a fever.


Benefits of Arthrosamid

Current evidence shows that you can expect to start seeing improvements in pain at four weeks post-injection and research has demonstrated that the effects can last for up to two years post injection.  Arthrosamid can also reduce the need for early surgical intervention.

If you would like to book a rapid-access appointment at either our Golders Green or Chelsea clinic locations then please call 0208 0046659, visit www.thejointinjectionclinic.com or email [email protected] for further information.

Contact Us 020 8004 6659

Frequently Asked Questions

Arthrosamid is different from other injections for knee osteoarthritis due to hydrogel composition. This has been designed to provide long-lasting relief. Unlike traditional steroid or hyaluronic acid injections, Arthrosamid acts to coat the lining of the joint (synovium) and thus provides a physical barrier to inflammation within the joint, improving mobility and lessening pain without frequent re-administration.

Arthrosamid, utilized as an intra-articular polyacrylamide hydrogel injection, provides a secure method for reducing knee osteoarthritis-related pain symptoms. Clinical trials have shown that the most frequent side effects are mild to moderate pain or swelling at the injection site, generally appearing in the first few weeks or months after the injection.

Osteoarthritis results in inflammation of the knee joint. Arthrosamid is injected into the knee joint capsule. It helps to restore the viscosity of the synovial fluid, thereby improving load distribution and lubrication. Once incorporated into the synovium of the inner joint capsule, Arthrosamid also creates a cushioning effect and acts as a physical barrier to inflammation.

Arthrosamid helps to cushion the joint and reduce inflammation, leading to a reduction in stiffness and pain, with improved movement. It is a safe treatment providing long-lasting relief and improving the overall quality of life.

Arthrosamid can reduce pain for up to a year, with preliminary studies indicating potential for several years of relief. Two major trials are currently monitoring patients over five years to fully assess Arthrosamid's prolonged and sustained benefits.

Arthrosamid is administered through a 6ml injection and is designed to alleviate pain and stiffness while improving mobility. This leads to long-lasting pain relief and an enhanced quality of life. After receiving the injection, patients should refrain from strenuous activities for the first three to five days, a standard precaution following any invasive joint procedure. Temporary side effects from the injection, like mild to moderate pain or swelling at the injection site, particularly around the knee, may be experienced during the first week after the procedure.

Arthrosamid has the potential to delay joint replacement surgery in patients who suffer from knee osteoarthritis. With improved joint function and long-term pain relief, it may extend the timespan before surgical intervention becomes necessary. The efficacy varies among individuals, and you need to consult a healthcare professional for personalized advice. In our experience at The Joint Injection Clinic, we have found that 15-20% of patients notice a “life-changing/miraculous improvement in their symptoms, 70-75% note a good improvement, with 5-10% seeing no change in their symptoms at all.

Before receiving an Arthrosamid injection, a local anesthetic will be given to numb the area surrounding your knee. During clinical trials, the most common side effects were mild to moderate injection-related pain or swelling during the first few weeks or months after the injection.

Arthrosamid injections are expensive and are not currently covered by insurance or the NHS. The drug cost to the clinic is significant and this cost has to be passed on to the patient. Most clinics in London charge £2750-£3500 for one knee and £5000-£6000 for both knees. At The Joint Injection Clinic we offer some of the most competitive prices in London and the UK with one knee costing £2450 and both knees costing £4345.