Understanding Knee Replacement Surgery
Having a knee replacement following injury or a long-term condition is far more common than many people realise. According to NRAS, more than 100,000 knee replacements are performed annually in the UK — and with an ageing population, that figure is set to rise.
The most common reason for undergoing knee replacement surgery is osteoarthritis, a degenerative joint condition that causes pain, stiffness, and reduced mobility. Osteoarthritis is the most prevalent form of arthritis in the UK, affecting an estimated 8.5 million people.
Knee replacement surgery may also be required due to traumatic injury or damage caused by sports-related strain. Regardless of the cause, surgery aims to reduce pain, restore movement, and improve overall quality of life.
Types of Knee Replacement
In the UK, two main types of knee replacement procedures are offered:
- Total Knee Replacement: Both sides of the knee joint are replaced with prosthetic components.
- Partial Knee Replacement: Only one side of the joint is replaced, preserving more of the natural bone.
While highly effective, both procedures are considered major surgery, so alternatives such as physiotherapy, weight management, or joint injections are often explored first.
Like any operation, there are some risks involved, including infection, bleeding, or temporary pain. However, with proper care, most patients experience an excellent outcome and long-term relief from pain and stiffness.
Preparing for Surgery: The Role of Physiotherapy
Preparation is key to a successful recovery. Before your operation, your healthcare team will provide detailed information about the procedure, hospital stay, and expected rehabilitation.
It’s highly recommended that you stay as active as possible in the weeks before surgery. Strengthening the muscles surrounding the knee joint helps support mobility and speeds up healing afterward.
Working with a physiotherapist before your knee replacement is an excellent way to prepare. Your physio can develop a gentle exercise plan tailored to your condition, improving flexibility and strength. They will also understand your physical capabilities before surgery, helping to guide post-operative recovery more effectively.
You can learn more about pre-operative and rehabilitation options via What treatments can Advantage Physiotherapy offer me?
Expected Recovery Times After a Knee Replacement
After surgery, you’ll typically spend 3–5 days in hospital, followed by 1–2 weeks recovering at home. Upon discharge, you’ll receive specific instructions on caring for your knee, including wound management and gentle mobility exercises.
Your physiotherapist will play a vital role during this time, showing you safe exercises to rebuild strength and flexibility. Consistency is key — steady progress is far more effective than pushing yourself too hard too soon.
- Walking aids: Most patients can walk without a frame or crutches within six weeks, depending on their progress and physiotherapy support.
- Driving: Many people are able to drive again after 6–8 weeks.
- Full recovery: It can take up to two years for the knee joint to fully settle. A small number of patients may experience intermittent discomfort for longer, especially if rehabilitation is delayed or incomplete.
To explore more about recovery support, you can view our home visit physiotherapy options.
Physiotherapy After Knee Replacement Surgery
Physiotherapy is a crucial part of the recovery process. A qualified physiotherapist not only accelerates physical healing but also supports your mental wellbeing during what can be a challenging time.
At Advantage Physiotherapy, our team works closely with you to design a bespoke rehabilitation plan based on your surgery type, overall health, and lifestyle goals.
Common Post-Surgery Exercises Include:
- Leg raises – to strengthen the quadriceps
- Ankle pumps – to improve circulation and reduce swelling
- Knee bends (seated or lying down) – to increase flexibility
- Resistance band work – to rebuild joint stability
- Quadriceps strengthening exercises – to support knee alignment
It’s important to exercise little and often, balancing movement with adequate rest. Gentle, consistent exercise helps prevent stiffness and promotes optimal recovery.
Building Strength and Avoiding Setbacks
Your physiotherapist will help you gradually rebuild strength and confidence while teaching you how to move safely. They’ll also guide you on how to avoid re-injury once you begin resuming daily activities.
Key Recovery Tips:
- Focus on low-impact exercises such as walking or stationary cycling in the first few months.
- Avoid high-impact sports like running or football for at least six months post-surgery.
- If you feel any sharp or unusual pain during an exercise, stop immediately and inform your doctor or physiotherapist.
Your physio will monitor your progress closely and adjust your programme as your mobility improves. Recovery isn’t just about movement — proper sleep, good posture, and a balanced diet are equally important to help your body heal efficiently.
For more information on joint pain and related conditions, read Learn more about back pain injuries and conditions.
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How Advantage Physiotherapy Can Support You Post-Surgery
At Advantage Physiotherapy, we’re dedicated to helping you recover your strength, confidence, and independence following surgery. Our physiotherapists have extensive experience across hospital, clinical, and sports settings, ensuring you receive comprehensive care at every stage of recovery.
We understand that every patient’s journey is unique. Whether you’re preparing for surgery, recently discharged, or several months into recovery, we’ll work with you to:
- Improve strength and mobility safely
- Reduce pain and inflammation
- Prevent stiffness and build flexibility
- Support long-term joint health and confidence
Our goal is simple — to help you live life to your fullest potential.
If you’re preparing for or recovering from a knee replacement and need tailored physiotherapy support, get in touch today.
Call Advantage Physiotherapy to book your appointment and start your journey towards full recovery.