Osteotomy or knee replacement?

These are genuinely different operations for different patterns of knee disease.

The decision starts with understanding where the arthritis is and how your knee is aligned.

Osteotomy

A high tibial osteotomy may be considered when wear is predominantly confined to one side of the knee, particularly in a bow-legged knee, while the rest of the joint remains suitable for preservation.

The alignment is corrected to redistribute load away from the worn compartment.

You keep your own knee.

Recovery is longer because the bone needs to heal.

For the right patient, it can postpone the need for a knee replacement for many years.

Knee replacement

Replacement is more appropriate when arthritis is more widespread or when the condition of the knee means that preservation is unlikely to provide enough benefit.

For many patients, the priority is reliable pain relief and restoration of everyday function rather than returning to high-impact sport.

A replacement can provide excellent function, but it is not designed to make every high-impact activity advisable.

The honest comparison

The question is not:

“Which operation is better?”

It is:

“Which operation fits the knee you actually have?”

That decision is based on the clinical examination and appropriate weight-bearing imaging, including assessment of the alignment of the leg where relevant.

If your arthritis is widespread, an osteotomy may be the wrong operation—even though preserving the native joint is generally preferable when it is genuinely suitable.

Preservation is a principle, not a rule to be applied at any cost.