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Still Experiencing Pain After Knee Cartilage Operation? – METEOR2 Study

Posted on March 14th, 2024

Are you still experiencing pain after a knee cartilage operation?

The METEOR2 is a study for people who have had some meniscus (cushioning cartilage) removed from their knee, don’t have diagnosed arthritis of the knee but still have pain more than 6 months afterwards.

The meniscus is cushioning cartilage in the knee which protects the joint from wear. Tears of the meniscus are common and can occur following traumatic injuries (caused during a significant, memorable injury to the knee, including sporting injuries) or from degenerative tears, which occur over time.

Tears of the meniscus are often treated by an operation called a meniscectomy. This involves the removal of cartilage in the knee. After this operation, most people’s pain and symptoms improve over time. For some people, the pain and symptoms get worse.

METEOR2 is looking for people who:

  1. Have been treated by having meniscus removed at least 6 months previously.
  2. Are still experiencing pain or other symptoms.

To be eligible for the study, patients cannot have arthritis of the knee.

Two possible treatment options for these types of patients are:

Personalised Knee Therapy Meniscal Transplant
Personalised knee therapy (physiotherapy, sometimes bracing, advice on work or activities and how to improve pain; may also be known as optimised rehabilitation). An operation to insert a replacement meniscus taken from someone who has died, this is known as a ‘meniscal transplant’.

We do not know whether this problem is best treated with personalised knee therapy or surgery to replace the meniscus. Both treatments could improve pain and restrictions.

METEOR2 aims to find out which of these treatments is best. Participants will be randomly allocated to either treatment and we will follow up on their recovery progress. The plan is to recruit 144 participants from hospitals across the UK and internationally, including Australia, Canada and Belgium.

If you would like to find out more about the study, you can read the patient information sheet or visit the website.

If you think you may be eligible for the study and would like to take part, please contact your GP and request that you are referred to one of the participating sites.



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