Understanding Joint Preservation Surgery
Joint preservation is a philosophy as much as an operation: for younger, active patients with focal damage, the aim is to protect and restore the natural knee rather than replace it. It combines techniques such as cartilage repair, realignment (osteotomy) and biological methods.
By offloading the damaged area — for example realigning the leg so weight passes through healthier cartilage — and restoring the joint surface, preservation surgery can relieve pain and delay or avoid a knee replacement for many years.
Key benefits
- Protects and prolongs your natural joint
- Can delay or avoid replacement for years
- Relieves pain by offloading the damaged area
When Joint Preservation Surgery is recommended
How the procedure is performed
Planning
Imaging and assessment identify the source of damage and the best preserving strategy.
Correction
Alignment is corrected (osteotomy) or cartilage restored to offload and protect the joint.
Biological support
Cartilage and biological techniques support healing of the joint surface.
Protected recovery
Weight-bearing is protected while the joint heals and adapts.
Preparation & prerequisites
- A detailed clinical assessment and review of your scans (X-ray / MRI) to confirm the diagnosis and plan the surgery precisely.
- Routine pre-operative blood tests, an ECG if needed, and a fitness-for-anaesthesia check by the anaesthetist.
- Stopping blood-thinning medication (such as aspirin or clopidogrel) only if advised, and disclosing every medicine and supplement you take.
- Fasting for around 6 hours before surgery, and arranging a responsible adult to drive you home and stay with you the first night.
- Preparing your home for recovery — ice packs, loose clothing, and a clear path free of trip hazards.
What recovery looks like
Weeks 0–6
Protected weight-bearing while the correction or repair settles and any bone cut heals.
Weeks 6–12
Loading and strengthening are increased gradually.
Months 3–6
Return to activity as the joint adapts to its new, protected loading.
How to recover well
- Follow the RICE principle early — rest, ice 15–20 minutes several times a day, gentle compression and elevation to control swelling.
- Take pain relief as prescribed rather than waiting for pain to build, and keep the wound clean and dry.
- Attend every physiotherapy session and do your home exercises — rehabilitation is as important as the surgery itself.
- Progress activity gradually and don't return to sport until you're formally cleared, to protect the repair.
- Watch for warning signs — spreading redness, fever, calf pain or increasing swelling — and call us if they appear.
Risks, safety & outcomes
In experienced hands this is a very safe procedure, and serious problems are uncommon. Every step is taken to minimise risk — but being fully informed is part of good care. Possible risks include:
- Symptoms may persist if wear is more advanced than a focal problem
- Bone-healing time if an osteotomy is performed
- The usual small surgical risks
Results & outlook
For the right patient, joint preservation relieves pain and can postpone replacement for many years, keeping your own knee working for longer — a real advantage for younger, active people.
Frequently asked questions
It's ideal for younger, active patients with focal damage or malalignment who want to delay or avoid a joint replacement.