Knee Replacement Surgery
Knee replacement surgery is one of the most reliable and predictable way to treat arthritis of the knee once conservative options have been exhausted. Here Mr Samir Ali Salih talks about his approach:
Treatments offered by Mr Salih
- Robotic knee Replacement
- Robotic Partial Knee Replacement
- Knee Injections
- Rapid access consultations
- Short waiting list surgery
About the Operation
Knee replacement surgery has advanced a lot in recent times as understanding of knee arthritis has improved. It is now possible to replace half of the knee joint, this is called a partial knee replacement or a uni-compartmental knee replacement.
Large studies have found that approximately 85% of patients are satisfied with their knee replacement. Mr Samir Ali Salih believes that satisfaction rates can be improved significantly by careful and considered joint decision making with the patient and the surgeon. When surgery is indicated for knee arthritis the most important decision is choosing the right operation, at the right time, Mr Samir Ali Salih can guide you in making this decision following reviewing your history, examining your knees, and reviewing imaging such as X-rays.
Partial Knee Replacement
Partial knee replacement, also called a half knee replacement or uni-replacement is a good option for patients who only have arthritis in one area of the knee. This has the advantage of lower surgical risks, a quicker recovery, and generally a more normal feeling knee.
Mr Samir Ali Salih performs this operation traditionally and using robotic assistance (MAKO system). The MAKO system uses a 3D CT scan of your knee to plan the operation, and has been shown to more accurately position the knee replacement during surgery.
Total Knee Replacement
Total knee replacement is a good option for patients with more widespread arthritis as this replaces both sides of the knee joint. Modern alignment and balancing techniques allow Mr Samir Ali Salih to perform this operation with the best chance of a stable knee joint and a satisfied patient.
Mr Samir Ali Salih also performs total knee replacement using the MAKO system, again this has been shown to increase the accuracy of joint position. Mr Samir Ali Salih finds the MAKO system a valuable tool in knee replacement surgery, including in advanced disease where knock knee, or bowleg deformity occurs.
During the Operation
The operation lasts around 1 hour, you will rest on your back this period with supports to support your leg. Many patients actually sleep through the operation, others choose to listen to music. After the operation you will stay in bed for a short period until your anaesthetic has worn off, followed by physiotherapy to get up and walking on the same day. Some patients go home the same day, some stay in hospital for 1 to 2 nights.
After Knee Replacement Surgery
Post operative it is important to keep your knee moving regularly, so that you keep a good range of movement as your knee heals. It takes around 2 weeks for the surgical incision to heal, and activities like driving can often start around 6 weeks post operative.
Mr Samir Ali Salih will generally see his patients in clinic 6 to 8 weeks after the operation to review progress. Most patients at this point will be walking longer distances, building up activity levels, and weaning off sticks or crutches.
Personalised Knee Replacement Surgery
Knee replacements have traditionally been placed in the same position for all patients. This philosophy is called mechanical alignment and has for a long time been the gold standard for aligning a knee replacement.
One problem with mechanical alignment is that not all patients are made the same, and sticking to a one size fits all approach means some patients may not be fully happy with their knee replacement.
Mr Samir Ali Salih believes that knee replacement surgery should be patient centered and based on the patients anatomy.
Mr Ali Salih takes a modern approach to knee replacement surgery, he considers both the alignment of the bones in the knee, and also the ligament tension around the knee when aligning a knee replacement.
Frequently Asked Questions
Do I really need a knee replacement, are there any alternatives
Knee replacement is a good option when pain and stiffness severely limit daily activities and other treatments like medications, injections, physiotherapy, or lifestyle changes no longer provide relief. There are surgical alternatives suitable for some patients which will be discussed during your consultation if appropriate. The goal of knee replacement surgery is to improve quality of life. The main two operations for arthritis are total knee replacement and partial knee replacement.
What kind of anesteshia will I have?
The most common anaesthetic used for Mr Samir Ali Salih patients is spinal anaesthetic, this has the advantage of faster recovery with longer lasting pain relief. The choice depends on your health, preferences, and anesthetists recommendation. Both are safe and commonly used.
How long is the recovery from a knee replacement?
Most patients are walking with support on the day of surgery . Hospital stay is typically 1 to 2 nights, with many patients going home on the day of the operation. Full recovery varies, but many patients return to normal daily activities within 6–8 weeks, with continued improvement for up to a year.
How long will the implant last?
The vast majority of modern knee replacements last well over 15 years, likely much longer. Longevity will depend on implant type, and activity level and other variables. There is a high chance that a knee replacement will never need to be revised.
What results can I expect from a total knee replacement?
Most patients experience substantial pain relief and a marked improvement in knee function after total knee replacement surgery. Everyday activities such as walking, climbing stairs, standing from a seated position, and sleeping comfortably typically become much easier once recovery is complete.
Improvement is gradual. While some benefits are felt within the first few weeks, strength, flexibility, and confidence in the knee continue to improve over several months, with final results often seen around 9–12 months after surgery.
An artificial knee will not feel exactly the same as a natural joint, particularly with kneeling or deep bending, but it is designed to be stable, durable, and comfortable for normal daily activities. Most patients can return to low-impact activities such as swimming, cycling, golf, and long walks.
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