When you wear a prosthetic, it becomes part of your life. It helps you move, work, and live every single day. But like anything that’s used daily, parts wear out.
Over time, you may need to replace a finger, a foot, a knee joint, or the socket that holds everything together. And when that time comes, one question always comes up:
How much is this going to cost me?
In this blog, we’ll walk you through the real costs of replacement parts — not just numbers, but what you’re actually paying for, why prices vary, and how to make smart choices that save money and stress in the long run.
Let’s start by understanding why replacement parts matter just as much as the prosthetic itself.
Why Replacement Parts Matter
Your Prosthetic Works as a Whole
Think of your prosthetic like a bicycle. It only works well when all its parts are working together.
If one part — like a chain or brake — stops working, the whole ride becomes harder or even dangerous. The same goes for your prosthetic.
Even if the main hand, leg, or joint is fine, a worn-out finger or socket can cause discomfort, reduce control, or affect your ability to move confidently.
Regular Use Leads to Natural Wear
Prosthetic parts go through a lot every day. They carry weight, face impact, handle sweat, and move in all directions.
This constant use causes parts to wear out naturally. It’s not a defect — it’s just life.
And when parts wear out, replacing them keeps you safe, comfortable, and in control.
Ignoring replacement needs for too long can lead to pain, poor posture, or even damage to the rest of the device.
Finger Replacements: Small Part, Big Role
When Do Fingers Need Replacement?
Fingers are one of the most used parts of any upper-limb prosthetic.
They help with gripping, typing, eating, and countless daily tasks. Over time, they can get loose, bent, or even cracked due to pressure and repeated use.
Sometimes it’s just the outer shell or glove that needs changing. Other times, the entire finger unit — including internal parts — may need replacement.
How Much Does It Cost?
At Robobionics, replacement fingers for the Grippy™ Bionic Hand usually cost between ₹5,000 to ₹15,000 per finger.
The price depends on the type of finger, whether it’s passive or motorized, and what parts need replacing — the glove, the inner frame, or both.
For mechanical fingers, the cost is lower, around ₹2,500 to ₹6,000.
Why Quality Matters Here
Fingers might look small, but they go through a lot of stress. Low-quality replacements may look okay at first but often fail faster or lose grip strength.
We use reinforced materials that last longer, and if the original finger had feedback sensors, those are calibrated again after replacement.
That way, the replacement works just like the original.
Feet: The Foundation of Your Step
The Role of the Prosthetic Foot
For people with lower-limb prosthetics, the foot is everything.
It balances your weight, absorbs impact when you walk, and helps you stand, climb, or run. It has to be strong, flexible, and well-aligned with the rest of your prosthetic.
A damaged or worn-out foot can lead to limping, pain in the knee or hip, or instability that causes falls.
That’s why foot replacement is not just about function — it’s about safety.
When Does a Prosthetic Foot Need Replacement?
Feet typically last 2 to 5 years, depending on use and the materials used.
Signs you may need a replacement include:
- A drop in walking comfort
- Uneven posture
- Visible cracks or soft spots in the material
- Difficulty in certain movements you could previously do easily
If you feel something is “off” in your gait, it could be your foot wearing out.
The Real Cost of Foot Replacements
Basic prosthetic feet made from lightweight materials like carbon fiber cost around ₹10,000 to ₹25,000.
Advanced feet — which include multi-axial movement, shock absorption, or energy return — can range from ₹40,000 to ₹80,000 or more.
At Robobionics, we work with local partners to offer high-quality foot components at more affordable rates, often saving users up to 40% compared to imported parts.
We also provide fitting and alignment with every replacement, ensuring you walk smoothly and safely.
Knees: The Most Complex Part of a Leg Prosthesis
Why Knees Are So Important
If the foot is the foundation, the knee is the command center.
It controls how you bend, stand, climb, or sit. It also helps with balance and absorbs much of the energy when you walk.
That makes it one of the most advanced — and expensive — parts of a prosthetic leg.
It’s also the part that takes a lot of pressure. So it needs to be checked regularly and replaced when signs of wear show up.
How Long Does a Prosthetic Knee Last?
Most high-quality prosthetic knees last between 3 to 7 years.
But this depends on many things — your weight, activity level, walking style, and how often you use the device.
Rough terrain or constant climbing can wear it out faster. For active users, replacement may be needed even earlier.
Cost of Replacing a Knee Joint
A mechanical knee unit generally costs ₹15,000 to ₹45,000.
But microprocessor-controlled knees (MPKs), which adjust automatically to your movement, can cost ₹1.5 lakh to ₹4 lakh, depending on the brand and features.
At Robobionics, we offer modular designs so that users don’t have to replace the full leg when the knee wears out.
Instead, we swap just the worn part — making it more affordable and faster to fix.
We also help calibrate new knees to match your body movement, ensuring you feel natural and steady from day one.
Sockets: The Unsung Hero of Every Prosthetic
What Is a Socket?
The socket is the part of your prosthetic that connects your body to the rest of the device. It’s the cup that fits around your residual limb and holds everything in place.
A good socket feels snug, not tight. It should allow movement but not cause pain. If it’s even slightly off, you’ll feel it all day — every step, every grip, every moment.
That’s why sockets are often called the heart of the prosthetic system. They’re not flashy, but they’re absolutely essential.
Why Sockets Need to Be Replaced
Your body changes over time. Muscles grow or shrink. Weight changes. The shape of your limb may shift slightly over months or years.
Even a 2–3 mm change can make a big difference in how the socket feels. It might start pinching, slipping, or causing pressure sores.
Also, the inner padding wears down over time. Sweat, heat, and movement break down the materials, leading to discomfort or hygiene issues.
When these problems start showing up, a socket replacement is usually the best solution.
How Much Does a Socket Replacement Cost?
Basic sockets for below-knee or below-elbow prosthetics start around ₹12,000 to ₹25,000. These are made from durable plastic or composite materials and come with a simple liner.
For more advanced sockets — especially those with silicone liners, carbon-reinforced walls, or 3D-printed custom shapes — prices can go up to ₹50,000 or more.
The cost also depends on whether you need only the inner liner replaced, or the whole socket structure. At Robobionics, we always assess first to avoid unnecessary full replacements.
We also offer flexible sockets that adapt better to your skin and movement, which reduces the need for frequent replacements.
Socket Comfort = Prosthetic Success
No matter how advanced the rest of your prosthetic is, if your socket doesn’t fit well, everything else feels wrong.
A good socket lets you use your device longer, with more confidence and less fatigue. It also reduces the chance of skin problems or discomfort.
That’s why we always say: replace your socket when your body asks for it. Not after it starts shouting.
What Affects the Cost of Replacements?
Materials Matter
Prosthetic parts are made from many different materials. Basic models use plastic and lightweight metals. Advanced versions use carbon fiber, titanium, or silicone blends.
These materials don’t just change how long the part lasts — they also affect how it feels, how heavy it is, and how it responds to movement.
Naturally, better materials cost more. But they also perform better and need fewer replacements over time.
We always try to strike a balance — giving you the best value for your budget.
Local vs Imported Parts
One major factor in pricing is where the part is made.
Imported parts — especially from Europe or the US — often cost 2–3 times more than similar parts made in India. And they usually come with longer delivery times, custom taxes, and complicated fittings.
That’s why we focus on Indian-made components at Robobionics. Over 60 of our 64 parts are built locally, which helps us keep prices fair and support faster replacements.
It also means you’re not waiting weeks just to get a finger or knee joint fixed.
Custom vs Standard Fit
Some users can wear standard-sized parts. Others need fully custom designs — especially for sockets or complex joint systems.
Custom parts cost more because they take more time to design, build, and test. But they also feel better and often perform better.
We use 3D scanning and computer-aided fitting to make sure every part matches your body perfectly — so you get more comfort and less hassle.
How Often Do Most Users Need Replacements?
This depends on many things: how active you are, what terrain you move on, how you care for your device, and even your job.
For light daily use, many parts last 2–3 years or longer. For heavy use, some need changing every year or even sooner.
Here’s what we typically see:
Fingers: 12 to 24 months
Feet: 2 to 4 years
Knees: 3 to 5 years (for mechanical), 2 to 3 years (for MPKs)
Sockets: 18 to 30 months, depending on limb changes
But remember, these are just averages. Your own needs may be different.
We always recommend a check-up every 12 months to catch issues early — and avoid costly damage later.
Can You Replace Parts Yourself?
Some simple parts — like cosmetic gloves or padding — can be replaced at home.
But for most mechanical or electronic components, we recommend visiting an expert or a certified prosthetic center.
DIY fixes may save money short-term, but if something goes wrong, it can void your warranty or lead to injury.
At Robobionics, we offer quick service for all parts. You can visit a center, schedule a pickup, or even request on-site support in some cities.
We’re here to make sure your device works perfectly — without the guesswork.
What If You Can’t Afford a Replacement Right Now?
We understand that life is unpredictable. Sometimes, money is tight.
That’s why we offer multiple ways to help:
We provide flexible payment plans or EMIs for major replacements
We offer refurbished parts at lower prices for eligible users
We help with government funding programs, NGOs, or insurance claims
You can also join our care program, where small monthly payments cover future replacements
Because we believe no one should have to live in discomfort just because they can’t afford a part right now.
What About Warranty on Replacement Parts?
Do Replacements Come with a Guarantee?
Yes, most replacement parts from Robobionics come with their own warranty.
This means if a new part fails due to a factory issue or fitting problem, we’ll fix or replace it — often at no extra cost.
Warranty duration depends on the part. Some items like fingers and sockets may have a 6-month warranty. Others, like feet and knees, may be covered for 12 months or more.
We explain all this clearly before you make a purchase. No hidden terms, no fine print.
What’s Not Covered
Warranties don’t usually cover damage from accidents, rough handling, water exposure, or long-term wear and tear.
So while you’re protected from faults, you still need to use the device with care.
We also encourage users to report issues early. Waiting too long can make things worse, and might even void the coverage.
How Robobionics Helps You Plan for Replacements
We Keep Track for You
It’s easy to forget when you last changed a socket or when your foot was last inspected.
That’s why we maintain service history for every user. We send reminders when check-ups or part replacements may be due, based on your usage pattern.
Think of it like a health check — but for your prosthetic.
It keeps you moving without surprises.
We Offer Upgrade Options
Sometimes, when a part needs replacement, it’s actually a good chance to upgrade to a better model.
If your knee is wearing out and you’ve been thinking of switching to a microprocessor version, we can offer trade-in discounts.
Or if your fingers are damaged but you’re ready to move from a mechanical to a bionic hand, we’ll help you upgrade using our Upgrade Path Pricing.
That way, your old part becomes a step toward something better — not just a sunk cost.
We’re Here for Every Budget
Not everyone can spend ₹20,000 or ₹50,000 at once. We get that.
So we work with you. We break down payments. Offer refurbished options. Suggest the most urgent replacements first, and schedule others later.
You’ll never feel pressured. Just supported.
That’s what care looks like.
Hidden Costs to Watch Out For
Cheap Parts That Don’t Last
Sometimes users get tempted by very cheap replacement parts — often sold online or by unauthorized shops.
These parts may fit, but they often break sooner, lack proper safety checks, or don’t match your device’s original design.
Over time, this ends up costing more — not just in money, but in comfort, performance, and even safety.
Always check if the part is approved by your prosthetic provider. And if the price seems too good to be true, it usually is.
Fitting Fees and Service Charges
Another hidden cost can be fitting.
Some centers charge extra for adjusting or aligning the new part. At Robobionics, basic fitting is always included in the replacement cost — unless you’re changing something very complex.
We always give you a full price breakdown in advance, so you’re not surprised later.
Downtime That Affects Your Life
When a part fails and you don’t have a replacement ready, it can disrupt everything — your job, your travel, your daily routine.
That’s why we recommend keeping an eye on wear signs and planning ahead. If a finger or socket is near the end of its life, book a replacement before it breaks.
A little planning saves a lot of stress.
Making the Most of Every Replacement
Don’t Just Replace — Refit
Every replacement is a chance to recheck your fit, posture, and comfort.
When we replace a part, we also check how it interacts with the rest of your system. If your socket is being changed, we test how your knee and foot feel with the new alignment.
This whole-body thinking leads to better results — and happier users.
Use the Opportunity to Upgrade Materials
Sometimes, just spending ₹2,000 or ₹3,000 more can get you a better material — one that lasts longer, feels lighter, or works better with your skin.
We’ll always show you those options, but never pressure you. It’s your choice.
Our goal is to make your prosthetic feel like an extension of you — not just a tool.
Real User Stories: How Replacements Changed Lives
Arun’s Foot Replacement
Arun is a security guard in Nashik. He walks all day and works night shifts. After 3 years, his prosthetic foot started to feel unstable.
He thought he just needed a tune-up. But during his check-up, we noticed cracks forming inside the foot shell. A sudden break could’ve caused a fall.
We replaced the foot with a reinforced model, better suited to his activity level. Arun now says, “I didn’t know walking could feel this smooth again.”
He’s been back at work ever since — without a single issue.
Saira’s Socket Swap
Saira, a college student in Hyderabad, felt pain in her stump after 18 months of using her prosthetic hand.
She thought her muscles were just sore from exams and travel. But the real issue was her socket — it had become too loose, and was rubbing her skin.
We scanned her arm and built a flexible-fit socket that adapts with her body. After the change, she told us, “It’s like wearing my first hand again.”
She even wore it during her graduation photos, smiling wide and confident.
Final Thoughts: Replacements Aren’t Repairs — They’re Restarts
Needing a new part doesn’t mean your prosthetic is broken. It means it’s doing its job.
It means you’re living, moving, working — and your device is keeping up with you.
So don’t fear replacements. Embrace them as a natural part of the journey.
Because every time you replace a finger, foot, knee, or socket, you’re not just fixing a device — you’re renewing your freedom.
What To Do Next
If your prosthetic part feels loose, weak, painful, or just “not quite right” — don’t wait.
Book a check-up. Talk to our team. Get a price estimate. Or try a free demo of an upgraded part.
You can start here: robobionics.in/bookdemo
We’ll walk you through your options. No pressure. Just support.
Let’s keep you moving forward — one part at a time.