If only your kneecap is damaged, an operation called a patellofemoral replacement or patellofemoral joint arthroplasty can be performed. In some cases, there may be other types of surgery you can have, including: Kneecap replacement
Talk to your surgeon about the type of surgery they intend to use and why they think it's the best choice for you. This type of joint replacement often results in more natural movement in the knee and you may be able to be more active than after a total knee replacement. Blood transfusions are also rarely needed. The advantages of partial knee replacement include a shorter hospital stay and recovery period. It's suitable for around 1 in 4 people with osteoarthritis. This is a simpler operation, which involves a smaller cut and less bone being removed. If only one side of your knee is damaged, you may be able to have a partial knee replacement. Kneeling may be difficult because of the scar. You're likely to still have some difficulty moving after your operation, especially bending your knee. In rare cases a splint is used to keep your leg immobile, but you're usually encouraged to move your knee as early as possible. The wound is closed with either stitches or clips and a dressing is applied to the wound.The back of the knee cap may also be replaced, depending on the reasons for replacement.This acts like cartilage, reducing friction as your joint moves. A plastic spacer is placed between the pieces of metal. These are fixed using special bone 'cement', or are treated to encourage your bone to fuse with the replacement parts. The end of your thigh bone is replaced by a curved piece of metal, and the end of your shin bone is replaced by a flat metal plate.Adjustments are made, the bone ends are cleaned, and the final prosthesis is fitted. The ends are precisely measured and shaped to fit the prosthetic replacement. A dummy joint is positioned to test that the joint is working properly. The damaged ends of your thigh bone and shin bone are cut away.This is then moved to the side so the surgeon can get to the knee joint behind it. Your surgeon makes a cut down the front of your knee to expose your kneecap.In a total knee replacement, both sides of your knee joint are replaced. Read more information about what happens on the day of your operation. Total knee replacements are the most common. This will depend on how damaged your knee is. You may have either a total or a partial knee replacement. The worn ends of the bones in your knee joint are removed and replaced with metal and plastic parts (a prosthesis) which have been measured to fit. Knee replacement surgery is usually performed either under general anaesthetic (you're asleep throughout the procedure) or under spinal anaesthetic or epidural (you're awake but have no feeling from the waist down).
You should be told at your pre-operative assessment who will be doing the operation. Most people would have seen their surgeon at a pre-assessment clinic and had the chance to the operation.Ī senior-level surgeon, consultant or registrar will do the operation. The surgeon and anaesthetist will usually come and see you to discuss what will happen and answer any questions you have. You'll usually be admitted to hospital on the day of your operation.
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