There is no honest way to price a knee replacement before examining the patient. The implant that suits you, whether one knee or both are treated, how long you stay, and what your medical history demands of the anaesthetic team all move the final figure substantially — and none of them can be known from a search result. Dr. Vinay S. Joshi therefore does not publish a price. After your consultation you receive a written, itemised estimate, prepared with the hospital's billing team and specific to the operation you actually need.
That is a deliberate position rather than an evasion, and it is worth explaining plainly. A published figure would have to be either so wide as to be meaningless, or narrow enough to mislead. Patients who are quoted a number before assessment are being given a marketing figure, not a clinical one — and the gap between the two is usually discovered at admission, which is the worst possible moment.
What this page can do, and does below, is tell you exactly what moves the number, what your policy is likely to cover, what sits inside a surgical package and what does not, and how the estimate is produced. Read it before your consultation and you will be able to interrogate any quotation you are given — including ours.
What determines the cost of a knee replacement
Six factors account for almost all the variation between one patient's estimate and another's, set out here in roughly the order of how much they move it.
1. The implant system
The largest single variable. A standard cobalt-chrome and polyethylene total knee sits at the base of the range. Above it sit implants chosen for specific clinical reasons, each priced differently.
- Oxinium (oxidised zirconium) — a ceramic-surfaced femoral component, markedly more scratch-resistant and smoother than cobalt-chrome, producing substantially less polyethylene wear. Chosen for younger, more active patients and for those with metal sensitivity.
- High-flex systems — engineered for deep flexion, for patients who need to sit cross-legged, kneel for prayer or squat.
- Gender-specific components — sized to the narrower female knee and its different trochlear geometry, avoiding bony overhang.
- Constrained or hinged systems — required for severe deformity, instability or bone loss, and considerably more expensive than any primary implant.
Implant choice is a clinical decision before it is a financial one. A forty-five-year-old who will load the joint for decades and a seventy-eight-year-old with modest demands are not well served by the same component. The knee replacement page sets out the full range of systems in use and the reasoning behind each.
2. One knee or both
A bilateral procedure — both knees under a single anaesthetic — costs more in absolute terms than one knee, but appreciably less than two separate admissions, and it means one anaesthetic, one hospital stay and one rehabilitation period. It is not right for everyone: bilateral surgery makes greater physiological demands, and suitability depends on cardiac and respiratory fitness, haemoglobin and age.
3. Conventional or robotic-assisted
Robotic assistance adds to the cost, reflecting the technology and the single-use instrumentation each case consumes. The VELYS platform requires no pre-operative CT scan — it maps the knee live during surgery — so unlike older robotic systems it adds neither a scan charge nor a radiation dose. The robotic knee replacement guide covers the technique and the published evidence in full.
4. Room category and length of stay
Ward, twin-sharing, single room and suite categories carry different daily rates — and at most large private hospitals the room category also sets the tariff applied to other elements of the bill, so it multiplies rather than simply adds. An uncomplicated total knee replacement typically involves four to five days as an inpatient; complex and revision cases run longer.
5. Primary or revision surgery
Revision knee replacement costs considerably more than primary surgery: longer theatre time, specialist extraction instruments, revision-specific implant systems, augments or structural graft to reconstruct lost bone, and a longer stay. The revision knee replacement guide explains why these cases are so much more demanding.
6. Your general health
A patient in good health with straightforward anatomy sits at the base of any range. Significant deformity, previous knee surgery, obesity, poorly controlled diabetes, or a cardiac or renal condition needing peri-operative management each add cost — through theatre time, implant requirements, additional investigations or a longer stay. This is the factor most often missed by patients comparing quotations, because it is invisible until someone examines you.
What the law fixes, and what it does not
One part of a knee replacement bill is not set by the hospital at all. Orthopaedic knee implants in India are subject to statutory price control: the National Pharmaceutical Pricing Authority brought them under a ceiling using its emergency powers under the Drugs (Prices Control) Order, after finding that trade margins on individual knee components had reached extraordinary levels. That ceiling applies to every hospital in the country equally, and it has been renewed each year since.
The implant was historically the largest and least transparent line on a knee replacement bill. It is now the one component that cannot vary between hospitals by more than the regulation allows. So when two knee quotations differ substantially, the difference is coming from somewhere else — usually the room category assumed, the number of inpatient days packaged, or what has quietly been left outside the package altogether. That is exactly what to ask about.
Hip implants, by contrast, were never brought under the same control — which is why hip quotations vary more widely between hospitals than knee quotations do, and why implant sub-limits in insurance policies matter considerably more on a hip. The hip replacement cost guide explains that difference and what it means in practice.
How insurance and cashless treatment work
Total knee replacement is a covered procedure under the great majority of Indian health insurance policies, and large private hospitals hold cashless arrangements with most major insurers and third-party administrators. The mechanics are the same almost everywhere.
| Stage | What happens | Typical timing |
|---|---|---|
| Pre-authorisation | The hospital's insurance desk submits your diagnosis, the planned procedure and the estimate to your insurer. | 3–7 working days before admission |
| Approval | The insurer confirms a sanctioned amount, which may be lower than the full estimate. | Usually 24–72 hours |
| Admission | You pay only the balance not covered, and any deposit. | On the day |
| Discharge | The hospital settles directly with the insurer; you settle the difference. | At discharge |
The four clauses that decide what you actually pay
- Waiting period. Joint replacement commonly carries a waiting period of several years from the inception of the policy. This is the most frequent reason a claim is declined outright, and it is worth confirming long before you plan surgery.
- Room-rent cap. If your policy limits room rent and you occupy a higher category, many insurers apply proportionate deduction — reducing every other reimbursed item on the bill by the same ratio, not merely the room charge. This clause routinely costs patients more than the room upgrade itself.
- Implant sub-limit. Some policies cap the implant separately from the procedure. Because knee implants sit under a statutory ceiling anyway, this bites less often on knees than on hips — but it still applies to the more specialised systems.
- Technology exclusions. Robotic assistance is treated by some insurers as a patient-funded upgrade rather than a covered element. Establish this before surgery rather than at discharge.
Has my joint-replacement waiting period elapsed? Does my policy apply proportionate deduction if I exceed the room-rent limit? Is robotic assistance covered, or treated as an upgrade? The answers shape what you personally pay more than the choice of hospital does — and having them in writing before admission prevents almost every unpleasant surprise at discharge.
Non-medical consumables are excluded under standard regulatory rules on almost every policy and are billed to the patient. They are a small proportion of a joint replacement bill, but they are not nil, and they should appear on any estimate you are given.
What a surgical package includes, and what is billed separately
Most of the confusion between competing quotations comes from here. Package definitions are not standardised across hospitals, so compare inclusions rather than headline figures — a lower quotation with fewer inclusions is frequently the more expensive option once the separate items arrive.
| Usually inside the package | Usually billed separately |
|---|---|
| Surgeon's and assisting team's professional fees | Optimising pre-existing conditions before surgery — cardiac assessment, diabetes control, anaemia correction |
| Anaesthetist's fee, anaesthesia and post-operative pain management | Any stay beyond the packaged number of days |
| Operating theatre time, sterile consumables and instrumentation | Intensive care, should a complication require it |
| The implant | Outpatient physiotherapy after discharge, typically continuing for several weeks |
| Room charges for the expected stay, nursing and routine medication | Walking aids, knee braces, compression stockings and home equipment |
| Inpatient physiotherapy, beginning the morning after surgery | Follow-up consultations and X-rays after the initial post-operative reviews |
| Routine pre-operative investigations and post-operative check films | Non-medical consumables excluded by your insurer |
How to get your estimate
The estimate is produced after assessment, not before it, and the sequence is deliberately straightforward.
- Consultation. Dr. Joshi examines the knee, reviews your X-rays and discusses how you actually use the joint — whether you sit on the floor, kneel for prayer, travel or stand at work. These answers determine which implant is appropriate, and therefore the cost.
- Clinical assessment. Your general health, previous surgery, deformity and any conditions requiring peri-operative management are established, along with whether one knee or both should be treated and whether robotic assistance would meaningfully change your result.
- Written estimate. The hospital's billing team prepares an itemised estimate covering the surgical package, the expected length of stay, the implant selected and anything falling outside the package — so you can see each component rather than a single figure.
- Insurance pre-authorisation. If you are insured, the insurance desk submits the estimate to your insurer and confirms the sanctioned amount before admission, so you know your own liability in advance.
Nothing is committed at any point in that sequence, and a second opinion is welcome — the guide to choosing a joint replacement surgeon in Mumbai sets out the criteria that genuinely predict a good outcome, which matter a great deal more over twenty years than the difference between two quotations does.
Frequently Asked Questions
Consultant Orthopaedic & Joint Replacement Surgeon and lead of the Arthroplasty team at Kokilaben Dhirubhai Ambani Hospital, Mumbai. Twelve years of specialist training across five UK orthopaedic centres, with further fellowships in Canada, Italy, Singapore and the USA. More than 4,500 joint replacements performed.