Robotic orthopaedic surgery - Mako, ROSA, Cori, Navio.
Robotic-assisted total and partial knee replacement, total hip replacement and selected revision cases - with a surgeon who uses one platform consistently, and honest advice about when a conventional operation is just as good.
Indicative pricing
What private robotic joint replacement costs in the UK.
Indicative ranges across our partner robotic orthopaedic units.
In short
Robotic total knee replacement: £16,000–£24,000, home in 1–2 nights.
| Procedure | Indicative range | Typical duration | Stay |
|---|---|---|---|
| Robotic total knee replacement (Mako or ROSA) | £16,000–£24,000 | 60–120 min | 1–2 nights |
| Robotic unicompartmental (partial) knee replacement | £13,500–£20,000 | 45–75 min | Day-case or 1 night |
| Robotic patellofemoral joint replacement | £13,500–£20,000 | 60–90 min | 1 night |
| Robotic total hip replacement (Mako) | £16,500–£24,500 | 60–120 min | 1–2 nights |
| Robotic revision arthroplasty (selected cases) | £22,000–£38,000 | 2–4 hours | 2–4 nights |
| Consultant orthopaedic consultation | £220–£380 | 30–45 min | Same visit |
| Weight-bearing CT knee (pre-op planning) | £450–£700 | 15–20 min | 24–72 hours |
Prices vary by hospital, implant brand and robotic platform. Revision cases sit at the top of the range. Physiotherapy is often a separate line item.
The problem
Match the platform to the joint, the surgeon to the platform.
Every robotic platform has its sweet spot. So does every surgeon. The right pairing gives you better alignment; the wrong pairing gives you an expensive marketing story.
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One surgeon, one platform
A surgeon who uses one robotic platform consistently outperforms a jack-of-all-trades. Ask which system your surgeon uses and how many cases.
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Robotic partial knee is the strongest case
For partial knee replacement, robotic assistance meaningfully improves component positioning - where a millimetre of error matters more than in a total knee.
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A good conventional surgeon is still excellent
A high-volume conventional arthroplasty surgeon still delivers excellent outcomes. Robotic assistance is a refinement, not a rescue.
When it helps
When robotic arthroplasty is the right choice.
The situations we see most, plus the one red flag that means A&E, not an elective private clinic.
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End-stage knee osteoarthritis
Bone-on-bone changes on X-ray with pain and stiffness that limit walking, sleep or work - the core indication for total or partial knee replacement.
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Isolated single-compartment knee arthritis
Medial or lateral or patellofemoral disease with the other compartments intact - a robotic partial knee is often the elegant answer.
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End-stage hip osteoarthritis
Groin pain, stiffness and reduced walking distance with X-ray-confirmed joint space loss - the classic hip replacement indication.
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Post-traumatic arthritis of the knee or hip
Arthritis after a previous fracture or ligament injury, sometimes with retained metalwork - robotic planning helps navigate distorted anatomy.
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Avascular necrosis of the femoral head
Collapsed femoral head in a younger patient - robotic total hip with precise cup positioning matters for long-term wear.
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Leg-length discrepancy correction
Robotic hip replacement is particularly good at reproducing pre-planned leg length and offset within 1–2 mm - useful when there is significant pre-op inequality.
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Complex primary arthroplasty
High BMI, previous surgery, unusual anatomy or dysplasia where a conventional operation would rely more heavily on intra-operative judgement.
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Red flag: hot swollen joint with fever
A joint that is hot, swollen and painful with fever - septic arthritis or infected implant needs same-day A&E, not a private elective clinic.
Platform options
Different systems, different strengths.
Each platform, honestly explained - Mako, ROSA, Cori, Navio and computer navigation.
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Mako robotic-arm assisted (Stryker)
CT-based pre-op plan, robotic-arm assisted cutting with haptic boundaries. Available for total knee, unicompartmental knee, and total hip. The most widely audited platform in the UK.
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ROSA Knee (Zimmer Biomet)
Optical tracking with either an image-based (X-ray) or imageless workflow. Robotic guidance rather than a robotic arm. Growing NHS and private uptake.
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Cori surgical system (Smith & Nephew)
Handheld robotic burr, imageless, works with Journey and Legion knee systems. Compact and increasingly available in private hospitals.
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Navio (predecessor to Cori)
Earlier handheld system from Smith & Nephew still in use at some centres. Similar principles to Cori.
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Computer-assisted navigation (non-robotic)
Optical guidance without a robotic actuator. Cheaper, still improves alignment accuracy. A reasonable option for straightforward total knees where robotics are unavailable.
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Robotic partial knee vs conventional partial knee
Robotic partial knee gives more reliable component positioning, which matters more in partial than in total knee replacement. A well-established use case.
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Robotic total hip
Mainly Mako. Precise cup inclination, anteversion, leg length and offset planned and reproduced within a few degrees and millimetres. Direct anterior or posterior approach both compatible.
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Robotic revision arthroplasty
Emerging use case for selected revision hip and knee replacements - pre-op planning of complex bone loss and implant orientation.
Safety and recovery
What to expect afterwards - honestly.
Robotic arthroplasty is a well-established operation. The things worth planning are the first fortnight of physiotherapy, the six-week review, and DVT prophylaxis.
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Big joint replacement, done as gently as possible
Robotic assistance does not change the fundamentals - this is still major surgery with real recovery. Plan on 6–12 weeks off strenuous work and 3–6 months for full performance return.
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Bleeding, transfusion and clots
Transfusion rates are low (under 5 percent for primary arthroplasty). DVT prophylaxis with stockings, mechanical devices and pharmacological agents is standard.
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Infection is the feared complication
Prosthetic joint infection occurs in about 1 percent of primaries. Modern laminar-flow theatres, prophylactic antibiotics and dental clearance for hips reduce risk further.
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Nerve and vessel injury are rare
Femoral, sciatic or peroneal nerve injury under 1 percent. Vascular injury is very rare. Meticulous exposure and robotic haptic boundaries reduce both.
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Alignment accuracy is the point
Robotic and navigated arthroplasty consistently place components within a few degrees and millimetres of plan - the mechanism by which better long-term function is achieved.
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Function benefit is real but modest
Randomised trials show slightly less early pain, quicker recovery of milestones and improved component alignment with robotic vs conventional. Long-term revision-rate differences are still being studied.
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Not everyone needs a robot
A high-volume conventional surgeon delivers excellent results too. Robotic assistance shines in complex primaries, partial knees and hip planning - not every straightforward primary total knee.
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Post-op physiotherapy determines outcome
The single strongest predictor of a good functional result is engagement with physiotherapy - 3–5 sessions a week for the first 6–12 weeks.
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Red flags after surgery
Fever, spreading redness, calf swelling, sudden breathlessness or severe pain unresponsive to analgesia need the same-day team or A&E, not a routine call.
Reading your operation note
Your operation note in four parts. Read the last one first.
Whichever platform was used, the note the surgeon sends you keeps to the same shape.
A quiet reminder
Arthroplasty language is precise - we translate it for you.
If you would like us to talk you through the note and the alignment numbers before your review, just ask.
- 01 Header
Joint, implant and platform
Which joint was replaced, the implant model and size, and the robotic platform used (Mako, ROSA, Cori, Navio) with software version.
- 02 Technique
Approach and alignment strategy
Direct anterior or posterior for hip; medial parapatellar for knee. Whether mechanical, kinematic or functional alignment was targeted, and the achieved values.
- 03 Findings
Intra-operative measurements
Planned vs achieved cup or component angles, gap balancing, leg length and offset - the numbers the platform records.
- 04 Impression
Physiotherapy and follow-up plan
Read this first: weight-bearing status, physiotherapy schedule, DVT prophylaxis duration, and consultant and X-ray review timings.
Recognised by major UK insurers
Joint replacement for a genuine indication is usually covered on standard inpatient policies. Robotic supplement cover varies by insurer.
Frequently asked
Everything we get asked about robotic joint replacement.
Quick answers on Mako vs ROSA, evidence, CT planning, recovery and cost.
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What is robotic orthopaedic surgery?
Robotic orthopaedic surgery uses a robotic-arm system (Mako), a robotic guidance system (ROSA) or a handheld robotic tool (Cori, Navio) to help the surgeon execute a pre-operative plan for a joint replacement more accurately. The robot does not perform the operation autonomously; the surgeon controls it. It is used mainly for total and partial knee replacement, total hip replacement, and increasingly for revision cases.
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What is the difference between Mako, ROSA, Cori and Navio?
Mako (Stryker) is a CT-based robotic-arm system used for total knee, partial knee and total hip. ROSA (Zimmer Biomet) offers image-based or imageless workflows with robotic guidance for total knee (and some hip use). Cori (Smith & Nephew) is a compact handheld robotic system for the knee, without pre-op CT. Navio was the predecessor to Cori. All aim to improve alignment accuracy; the best choice depends on the joint, the implant your surgeon uses, and case complexity.
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Is robotic joint replacement better than conventional?
Robotic and computer-navigated arthroplasty consistently place components more accurately than conventional instrumentation. Randomised trials show modest short-term benefits - slightly less early pain, quicker milestone recovery, better alignment. Long-term revision-rate differences are still being studied, and a high-volume conventional surgeon still delivers excellent results. For partial knee replacement and complex primary hips, the case for robotic is strongest.
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Do I need a CT scan before surgery?
Depends on the platform. Mako uses a pre-operative CT to build a 3D model of your joint. Some ROSA workflows also use imaging. Cori, Navio and imageless ROSA workflows build the plan intra-operatively from bony landmarks and do not need a pre-op CT.
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How long is the recovery?
Most robotic knee and hip replacement patients go home in 1–2 nights on an enhanced recovery pathway. Suitable partial knee replacements can be day-case. Return to office work in 4–6 weeks, driving in 4–8 weeks, and full sports and gym in 3–6 months. Physiotherapy 3–5 sessions per week for the first 6–12 weeks is the biggest single predictor of outcome.
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How much does private robotic joint replacement cost in the UK?
Roughly £13,500–£20,000 for robotic partial knee, £16,000–£24,000 for robotic total knee, and £16,500–£24,500 for robotic total hip. Revision cases sit at £22,000–£38,000. Prices include implant, robotic use, hospital stay and rehab - always confirm scope.
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Will insurance cover robotic surgery?
Joint replacement for a genuine indication is usually covered by UK insurers on standard inpatient policies. Some insurers cover the robotic platform as part of the case, others require a case for use, and a few still exclude the robotic supplement.
Related treatments
Looking for something else?
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Mako robotic knee surgery
Mako-specific knee replacement in detail.
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Mako robotic hip surgery
Mako-specific total hip replacement.
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Cori robotics knee surgery
Smith & Nephew Cori knee platform.
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Computer-assisted navigation knee
Non-robotic optical navigation option.
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Partial knee replacement
Unicompartmental knee replacement.
Learn more -
All tests & procedures
Every test and procedure we cover.
Learn more