Procedure guide · Orthopaedic surgery
A partial knee replacement replaces only the damaged part of the knee rather than the whole joint. The NHS explains that it is used when arthritis affects one half of the knee, through a smaller cut than a total replacement. Whether your knee is suitable depends on where the wear is, which an orthopaedic surgeon judges from your scans and examination.
What is a partial knee replacement?
In a partial replacement the surgeon replaces only the bone surfaces on the affected half of the knee with metal and plastic parts. The healthy parts of the knee are left alone. The NHS notes that the operation is similar to a total replacement but the cut is smaller and recovery is quicker.
Like a total replacement, it is done under a general anaesthetic or a spinal anaesthetic. The NHS states that the type of surgery depends on how damaged the knee is, your age and your general health.
Who may be considered for a partial knee replacement?
The NHS describes partial replacement as an option when you have arthritis in one half of the knee. If wear has spread across the joint, a total knee replacement is usually needed instead. Knee replacement of either kind is generally considered when other treatments and lifestyle changes have not helped and pain affects daily life.
Your surgeon also looks at the ligaments, how stable the knee is and how it lines up. Some people are told during assessment that a total replacement suits them better. Only your surgeon can make that call after examining you.
Which reports does a knee surgeon usually ask for?
Good imaging matters more here than for most knee operations, because the surgeon must see whether the other compartments are healthy. Ask the hospital whether it needs:
- standing X-rays of the knee from the front and side
- a kneecap (skyline) view, if your doctor took one
- any MRI scan of the knee
- notes on where exactly the pain is, inner or outer side
- a list of treatments already tried, such as injections or physiotherapy
- general health reports, including heart and diabetes records if relevant
How do I plan a partial knee replacement trip?
Stages are similar to a total replacement: remote review, plan and estimate, visas, arrival and checks, surgery, a hospital stay with early physiotherapy and outpatient physio before flying. The NHS notes recovery is usually quicker than after a total replacement, but your surgeon decides when you can travel.
Be ready for the plan to change. Your surgeon examines you again in India and may advise a total replacement if the knee is more worn than expected. Ask in advance how that would affect your stay and your estimate. Bring an attendant, book a ground-floor or lift-served room and line up a physiotherapist at home.
What should I ask the hospital before booking?
- Do my X-rays show wear in only one half of the knee?
- What would make you change to a total replacement?
- How would a change of plan affect my stay and estimate?
- Which implant do you use and will I get its details?
- How much physiotherapy is included before I fly?
- What clot-prevention plan should I follow when travelling home?
Who decides
IndiaMedica does not give medical advice. Your treating specialist decides whether this procedure suits you, the treatment plan, how long you stay and when it is safe to fly.
Questions people ask
Is a partial knee replacement a smaller operation?
The NHS says the cut is smaller than for a total replacement and recovery is quicker. It is still a joint replacement that needs anaesthesia, a hospital stay and physiotherapy. Your surgeon explains what to expect in your case.
Can a partial replacement be changed to a total one later?
If arthritis later spreads to other parts of the knee, further surgery may be considered. Ask your surgeon how they view this possibility for your knee and keep your implant details safe in case another surgeon needs them in future.
Sources
General information, not medical or legal advice. Rules change: confirm with the official source. Your treating specialist decides on suitability, treatment and length of stay. How we write and check.