Patient Guide

Robotic Knee Replacement: Precision, Personalised to Your Knee

No two knees are identical — so why should any two knee replacements be? Robotic-assisted surgery brings a new level of personalisation to joint replacement.

Robotic Knee Replacement illustration

Your knee is mapped in precise 3D, your surgery is planned virtually before a single cut is made, and the robotic system helps execute that plan with sub-millimetre accuracy.

First, let’s clear up the biggest misconception

The robot does not operate on you — your surgeon does. Think of the robotic system as the world’s most precise assistant: it holds the plan, guides the instruments within exact boundaries, and gives your surgeon live feedback throughout. Every decision, every movement, remains in the hands of your surgeon. The robot simply makes an expert’s work even more exact.

How it works, step by step

Before surgery, detailed imaging builds a 3D model of your unique knee. On this model, your surgeon plans the ideal implant size, position, and alignment — customised to your anatomy, your ligaments, your leg. In the operating theatre, the robotic arm helps carry out this plan exactly, removing only the damaged bone and cartilage while protecting the healthy tissue around it. If the surgeon moves outside the planned safe zone, the system simply won’t cut — an extra layer of protection built into every moment of the operation.

What precision means for you

Better alignment and balance are not abstract engineering wins — they translate into things you can feel: a knee that tracks naturally, less soft-tissue disturbance during surgery (which many patients experience as less post-operative pain), earlier confident walking, and implant positioning associated with better long-term function. Patients often describe robotic knees as feeling “settled” sooner.

Your questions, answered

Is robotic surgery safer?

The robotic system adds guardrails to an already very safe operation — it cannot act outside the surgeon’s plan. Its precision is an addition to your surgeon’s skill, never a substitute for it.

Does it take longer or cost more?

The operation takes a similar time once planning is done. Costs can differ between techniques and hospitals — we’ll explain everything transparently at consultation so there are no surprises.

Is recovery faster?

Many patients mobilise earlier and report less early pain, thanks to the tissue-preserving precision. The milestones — walking day one, stick by a few weeks, routine by around six — follow the same encouraging path as modern knee replacement generally, often with a gentler start.

Am I eligible for robotic surgery?

Most patients who need a knee replacement can have it robotically. Dr. Kalaivanan is fellowship-trained in robotic and computer-assisted joint replacement and will advise whether it offers meaningful advantages in your specific case.

See your knee’s plan before you decide

One of the quiet joys of robotic surgery: your surgeon can show you the plan — your knee, your implant, your alignment — before anything happens. Understanding replaces uncertainty, and that alone changes how the whole journey feels.

This page is for general education and is not a substitute for personal medical advice. Every patient is different — please consult a qualified orthopaedic surgeon about your specific condition.