Surgical Robotics Technology

Smith+Nephew Announces Launch of CORI Surgical System in Japan


The CORI Surgical System is designed to augment the surgical experience for high accuracy 1-4 *and improved outcomes in knee arthroplasty5**,6‡

Smith+Nephew has announced the commercial launch of its next generation handheld robotics platform, the CORI Surgical System, in Japan.

The launch of Smith+Nephew’s CORI Surgical System builds on the growing adoption and sustained success of its NAVIO Surgical System in Japan, where it was first introduced in 2019. The launch of CORI comes as the orthopaedic market for robotic-assisted surgery in Japan is forecast to grow at a 37.3% CAGR from 2020-2027.7

The CORI Surgical System is more compact than alternative robotic systems and designed for today’s crowded operating rooms. The minimal set up time± and portability means it can be moved from theatre to theatre to optimise flow of patients through surgical units.

The robotic solution incorporates 3-D intraoperative imaging with an advanced robotic precision milling tool9 to sculpt bone and can preserve anatomy in ligament sparing procedures. CORI digitally augments the surgeon’s ability to measure, plan and perform knee surgery which is individualised to the patient’s anatomy.

New camera technology that is over four times faster10±, designed specifically for robotic-assisted surgery, driving reduced cutting time in knee arthroplasty procedures vs previous designs.10∑

“We are well-positioned to meet the growing demand for robotics surgery in Japan and excited to announce the launch of our CORI Surgical System,” said Shinya Dobashi, Senior Vice President and Managing Director, North Asia, Smith+Nephew. “We are committed to deliver many benefits to surgeons and patients through this exciting technology with advanced performance. Smith+Nephew is the only company in Japan to combine robotic-assisted surgery, the compact footprint that surgeons want, with bi-cruciate retaining knees designed for improved knee function.”

The benefits of robotic-assisted surgery for patients have been proven in knee arthroplasty6,11≠ and include significantly improved patient reported outcome measures (PROMs)6,11≠ and evidence of an earlier return to an active lifestyle6‡, and shortened length of hospital stay.5

To learn more about the CORI Surgical System, please visit


*With the use of the handpiece

** Unicompartmental knee arthroplasty; Upon discharge compared to another computer-assisted technique; n=62 (31 robotics)

‡ Unicompartmental knee arthroplasty; Compared to conventional techniques, n= 28 (n=11 robotic procedures), 4.2 vs 10.5 months, p<0.01

¥compared to Mako and ROSA®

±compared to NAVIO◊ Surgical System

With the CORI bur; compared to NAVIO handheld robotics, as demonstrated in total knee cadaver studies

Unicompartmental knee arthroplasty; Median 51 vs 72 hours, p=0.008; Compared to other techniques


  1. Kopjar B, Schwarzkopf R, Chow J, et al. NAVIO Robotic Assisted Surgical System for Total Knee Arthroplasty Using JOURNEY II Guided-Motion Total Knee System. Poster presented at: ISTA 2-5 October, 2019; Toronto, Canada.
  2. Geller JA, Rossington A, Mitra R, Jaramaz B, Khare R, Netravali NA. Rate of learning curve and alignment accuracy of an image-free handheld robot for total Knee Arthroplasty. European Knee Society Arthroplasty Conference;2019; Valencia, Spain.
  3. Battenberg AK, Netravali NA, Lonner JH. A novel handheld robotic-assisted system for unicompartmental knee arthroplasty: surgical technique and early survivorship. J Robot Surg. 2019;14(1):55-60.
  4. Picard F, Gregori A, Bellemans J, et al. Handheld Robot-Assisted Unicondylar Knee Arthroplasty: A Clinical Review. Poster presented at: Computer Assisted Orthopaedic Surgery (CAOS) 14th Annual Meeting;October, 2014; Milan, Italy
  5. Shearman A, Sephton BM, Nathwani D. Robotic-assisted unicondylar knee arthroplasty is associated with earlier discharge from physiotherapy and reduced length of stay compared to conventional navigated techniques. European Knee Society Arthroplasty Conference;2019; Valencia, Spain
  6. Canetti R, Batailler C, Bankhead C, Neyret P, Servien E, Lustig S. Faster return to sport after robotic-assisted lateral unicompartmental knee arthroplasty: a comparative study. Arch Orthop Trauma Surg. 2018;138(12):1765-1771.
  7. (Accessed: 15th Dec 2021) 
  8. Smith+Nephew 2020. Comparison of operating room footprint for robotic-assisted knee arthroplasty systems. Internal Report. EO.REC.PCS015.002.v1.
  9. Smith+Nephew 2019. Implant Placement Accuracy Verification. Internal Report. TR1521
  10. Smith+Nephew 2020. CORI◊ and NAVIO◊ Technical Specification Comparison. Internal Report. ER0488 REV B.
  11. Sephton BM, Bakhshayesh P, Edwards TC, Ali A, Kumar Singh V, Nathwani D. Predictors of extended length of stay after unicompartmental knee arthroplasty. J Clin Orthop Trauma. 2019

Forward-looking Statements

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Source: Smith+Nephew.

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