VELYS — the imageless robotic knee replacement platform from Johnson & Johnson DePuy Synthes. Personalised, millimetre-accurate surgery without pre-op CT scans, delivered by Dr Hardik Shah in Ahmedabad.
VELYS is Johnson & Johnson’s next-generation robotic platform for knee replacement. Launched in India in November 2022, it’s now the fastest-growing robotic knee platform in the country, with over 1,000 procedures completed nationally in its first 12 months.
Unlike older robotic systems that require a pre-operative CT scan, VELYS is imageless — it maps your knee’s anatomy in real-time during surgery. This means no extra radiation exposure, no additional scan cost, and faster pre-surgical workup. The robot analyses your knee’s unique movement patterns and helps Dr Shah achieve precise bone cuts and implant placement.
How VELYS Works
Intra-operative Mapping: Specialised probes register your knee anatomy during surgery — no pre-op CT needed
Real-Time Planning: Software models your knee’s ligament tension and movement
Computer-Guided Cuts: Robotic arm guides bone cuts with sub-millimetre precision
Dynamic Verification: Checks ligament balance and alignment throughout the procedure
Attune Implant Integration: Designed specifically to work with the Attune knee implant system
VELYS Advantages
No pre-op CT scan required
Zero extra radiation
Faster pre-surgical workup
Real-time anatomy mapping
Sub-millimetre accuracy
Designed for Attune implants
Shorter OR time vs image-based systems
Platform Comparison
VELYS vs Mako vs ROSA vs CORI — Robotic Knee Platforms 2026
Feature
VELYS (J&J)
Mako (Stryker)
ROSA (Zimmer)
CORI (Smith+Nephew)
Pre-op CT Required
No (imageless)
Yes
Optional
No (imageless)
Technology Type
Robotic-assisted cutting
Haptic robotic arm
Robotic arm
Handheld robotic
Implant Compatibility
J&J Attune
Stryker Triathlon
Zimmer Persona
S+N Legion/Journey
Real-Time Mapping
Yes
Yes (CT-based)
Yes
Yes
Radiation Exposure
None extra
CT scan radiation
Varies
None extra
India Launch
Nov 2022
2015
2017
2019
Adoption Rate (India)
Rapidly growing
Widely established
Established
Growing
Each platform has strengths — choice depends on surgeon expertise, implant preference, and case specifics.
Published Evidence
VELYS Clinical Results — 2026 Data
Recent studies from India tracking the first 1,000 VELYS total knee arthroplasty cases show:
98% alignment accuracy: implants positioned within 1° of plan
Shorter operative time: after the learning curve, VELYS cases are similar or shorter than image-based robots
High patient satisfaction: early functional scores exceed traditional TKA benchmarks
Low complication rate: comparable to experienced-surgeon manual TKA
Faster recovery: many patients walking aided on day 0, discharged in 2-3 days
Why Dr Shah Uses VELYS
With 15,000+ knee replacements performed across multiple platforms, Dr Hardik Shah chooses the right tool for each patient. VELYS offers a compelling combination: imageless workflow, proven accuracy, and integration with the well-validated Attune implant system — one of the most successful knee implant designs of the last decade.
For patients, the practical benefits are significant: no pre-op CT scan (saves cost and radiation), shorter pre-surgical workup, and the confidence of a technology backed by rigorous clinical validation.
VELYS at DHS Multispecialty Hospital
DHS is one of a growing number of Ahmedabad hospitals offering VELYS robotic knee replacement. Dr Shah has performed VELYS cases since the platform’s early India rollout.
Is VELYS better than other robotic platforms like Mako?
All major robotic platforms deliver excellent accuracy in experienced hands. VELYS’s main advantage is being imageless (no pre-op CT), shorter workflow, and integration with the Attune implant. “Better” depends on your specific case and surgeon’s expertise.
Is VELYS robotic knee replacement more expensive?
Similar price range to other robotic platforms in Ahmedabad — typically ₹3.5L – ₹5L per knee. VELYS may be slightly cheaper since there’s no pre-op CT scan cost.
What implant does VELYS use?
VELYS is designed to work specifically with the Johnson & Johnson Attune knee implant system — one of the most clinically validated modern knee implants
Is VELYS covered by insurance?
Yes — VELYS robotic knee replacement is covered by most Indian health insurance policies the same way other robotic knee replacements are. Cashless treatment available at DHS Multispecialty Hospital.
Does VELYS mean faster recovery?
The robotic precision typically translates to faster early recovery — many patients walk aided on day 0, are discharged in 2-3 days, and return to daily activities in 4-6 weeks.