Waiting times at St Mary's NHS Treatment Centre

First appointment From appointment to treatment*
6 weeks 8 weeks
*The actual time you wait for surgery at St Mary's NHS Treatment Centre will depend on many factors, including whether further diagnostics or tests are required, patient choice and how quickly the NHS will approve the funding for your treatment. Nevertheless the vast majority will be in the range detailed above.

Please note: waiting times displayed are indicative and can change on a daily basis.


You have the right to choose where you have your NHS treatment.

At St Mary’s NHS Treatment Centre we offer free NHS treatments to all patients. You are not required to pay if you are an NHS patient and have been referred for treatment by your GP.

We also offer an affordable self pay option for patients who do not have health insurance, or have been told they are ineligible for NHS treatment.

Click here for more information about self pay


This is a joint service between Southampton NHS Treatment Centre and St Mary’s NHS Treatment Centre. You will have your assessment in Portsmouth, and you treatment in Southampton. All patients must have been through the MSK pathway prior to referral.

Knee revision

This surgical procedure involves replacing a patient’s artificial knee joint with a new one. This surgery may also involve the use of bone grafts.

Total knee replacement

Total knee replacement surgery involves replacing diseased or damaged joint surfaces in the knee with metal and plastic components shaped to allow continued motion of the knee.

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