What’s the difference between having a total knee replacement or a partial knee replacement?

Mr Imboldon, the people talk about having a total knee replacement as opposed to a hemi knee arthroplasty. What's the difference and who needs what? So again that's a really good question. So the hemi or partial knee replacement is where we might replace only part of the knee joint that's worn down. A total knee replacement is where we replace the entire knee joint and that's normally indicated if you've got arthritis in the entire knee. Now it's quite a controversial topic, but total knee replacement has been around for a lot longer than partial knee replacement. And so surgeons in general, most surgeons have got more experience in doing them, and the data for them is a lot longer. Having said that, there's been a recent big trial that's just come out, and the results have shown that partial knee replacements actually seem to be outperforming total knee replacements, in the fact that you seem to get your more function back, and the satisfaction scores of the patients is better. And we think that's because we're replacing less of you, only the bits that we need to. We also keep the special cruciate ligaments in your knee. In a total knee replacement, unfortunately, we have to remove them and replace them with artificial parts, which probably don't function quite as well. So the take home message is, if you're able to have a partial knee replacement, and your surgeon agrees, it's probably not a bad option now. Thank you.