Supporting Evidence

ZBEdge is Zimmer Biomet's suite of integrated digital and robotic technologies, purposefully engineered to help deliver data-powered clinical insights, shared seamlessly across the patient journey

Zimmer Biomet is committed to supporting the value of our technology with evidence. Read below for the latest on our ZBEdge products.


ROSA® Knee System

REGISTRY DATA

Promising Results for Early Survivorship with the ROSA Knee System; An Automated Report from the Australian Orthopaedic Association National Joint Replacement Registry


Anderson, Mike B* and Konstanze Hueller*, Zimmer Biomet White Paper, May 2021.

Key Takeaways: 35% relative reduction in early revision rates

The survivorship reported within the AOANJRR of Persona® Knee implants combined with early data from the ROSA Knee System is promising. The CPR for Persona Knee CR and PS bearings is 1.9 (95% CI, 1.6 – 2.2) at five years, compared to a CPR of 3.4 (95% CI, 3.4-3.5) for the same follow-up time with all other total knees. The revisions/100 observation years was 0.39 (95% CI, 0.14 – 0.86) for robotic assisted TKA using the Persona knee compared to 0.60 (95% CI, 0.52– 0.68) without robotic assistance for the same implants. This demonstrates a relative reduction in revisions of 35% when robotic assistance was used.

PUBLICATION

Question and Answer – Integrating a Robotic Assistant Into a High-Volume Orthopaedic Practice+


Polikandriotis, John A., and Nathan L. Cafferky. Journal of Orthopaedic Experience & Innovation, March 2021

Key Takeaways: ROSA knee is easy to integrate with minimal learning curves

The Robotic Surgical Assistant (ROSA, Zimmer Biomet, Warsaw, IN) allows for the surgeon to maintain full autonomy and control of operative decision-making while providing precise, objective, and real-time data for intraoperative adjustments, thus allowing the surgeon to both individualize and reproduce the Total Knee Replacement. 

PUBLICATION

The Functionality of a Novel Robotic Surgical Assistant for Total Knee Arthroplasty: A Case Series


Alessi, Alexandra, et al. Case Reports in Orthopedics, vol. 2021, Article ID 6659707, 18 pages, 2021.

Key Takeaways: ROSA Knee facilitates complex cases

The ROSA® Total Knee System allowed precise intraoperative adjustments, as demonstrated by these cases, and is a promising step towards more personalized total knee arthroplasty made possible by utilizing real-time objective measures.

PUBLICATION

Using Standard X-ray Images to Create 3D Digital Bone Models and Patient-Matched Guides for Aiding Implant Positioning and Sizing in Total Knee Arthroplasty+


Massé, Vincent and Raju S. Ghate. Computer Assisted Surgery, 26:1, 31-40, published online 15 Mar 2021

Key Takeaways: X-Atlas™ imaging technology could effectively predict implant sizing.

The X-Atlas™ imaging technology proved to be accurate to reconstruct a 3D bone model and results have shown that it might provide benefits to surgeons seeking improved planning and precision without the problems of obtaining 3D imaging.

WHITE PAPER

ROSA Robotics: Industrial Robotic Arm Technology


Zimmer Biomet, White Paper, February 2021

Key Takeaways: ROSA Knee uses same highly-accurate robotic arm as ROSA Brain.

Intrinsic characteristics of the six degrees of freedom (DOF) anthropomorphic industrial robotic arm combined with specific features designed by Zimmer Biomet explain why it has chosen this kind of technology for use in surgical procedures. The robotic platforms designed by Zimmer Biomet offer a state-of-the-art robotic experience for patients, physicians and hospitals.

PUBLICATION

Better Accuracy and Reproducibility of a New Robotically-Assisted System for Total Knee Arthroplasty Compared to Conventional Instrumentation: A Cadaveric Study+


Seidenstein A, Birmingham M, Foran J, Ogden S., Knee Surg Sports Traumatol Arthrosc. 2020 Mar;29(3):859-866. doi: 10.1007/s00167-020-06038-w. Epub 2020 May 24. PMID: 32448945.

Key Takeaways: ROSA Knee is more accurate than conventional instrumentation

The results of this cadaveric study demonstrate that surgeons using this novel TKA robotic system can achieve bone resections with a higher level of accuracy and less alignment outliers compared to a conventional procedure.

PUBLICATION

Accuracy of New Robotically-Assisted Technique for Total Knee Arthroplasty: A Cadaveric Study


Parratte, S., et al. The Journal of Arthroplasty, 34(11): 2799-2803, 2019

Key Takeaways: ROSA Knee is highly accurate

The results of this cadaveric study demonstrated that surgeons using this new surgical robot in total knee arthroplasty can perform highly accurate bone cuts to achieve the planned angles and resection thickness as measured using conventional navigation.

ROSA®  Partial Knee System

PUBLICATION

Improved Accuracy and Reproducibility of a Novel CT‑Free Robotic Surgical Assistant for Medial Unicompartmental Knee Arthroplasty Compared to Conventional Instrumentation: A Cadaveric Study+


Lonner, J.H., Seidenstein, A.D., Charters, M.A. et al.  Knee Surg Sports Traumatol Arthrosc (2021). https://doi.org/10.1007/s00167-021-06626-4

Key Takeaways: ROSA Partial Knee cases resulted in significantly more accurate and more reproducible bone resection angles than conventional instrumentation

The purpose of this study was to determine whether a novel CT-free robotic surgical assistant improves the accuracy and reproducibility of bone resections in UKA compared to conventional manual instrumentation.  All bone resection angles were significantly more accurate for robotic cases. Highly accurate bone resection angles to 1° in the coronal and sagittal planes. Four out of five parameters were significantly more reproducible (fewer outliers). 97% of cases were within 3° of targeted Tibia V/V and A/P, as well as Femur V/V and F/E.

mymobility®

PUBLICATION

2021 Mark Coventry Award: Use of a Smartphone-Based Care Platform After Primary Partial and Total Knee Arthroplasty: A Prospective Randomized Controlled Trial+


Crawford, David et al. Bone Joint J 2021;103-B (6 Supple A) : 3-12 

Key Takeaways: Equivalent outcomes and significantly fewer PT visits with mymobility for TKA/PKA

The purpose of this study was to determine the non-inferiority of a smartphone-based exercise educational care management system after primary knee arthroplasty compared with a traditional in-person physiotherapy rehabilitation model. The data found that mymobility is clinically non-inferior to the standard of care for all outcomes. mymobility users demonstrated a significant reduction of physical therapy utilization post-operatively. Further, mymobility users trended lower on ED visits than control group, though not statistically significant. This platform could aid in decreasing post-operative costs, while improving patient engagement and communication with the healthcare team.

PUBLICATION

Early Outcomes of Primary Total Hip Arthroplasty with Use of a Smartphone-Based Care Platform: A Prospective Randomized Controlled Trial+


Crawford, David et al Bone Joint J 2021;103-B (7 Supple B):91-97.

Key Takeaways: Equivalent outcomes and significantly fewer PT visits with mymobility for THA

The purpose of this study was to determine the non-inferiority of a smartphone-based exercise educational care management system after primary total hip arthroplasty compared with a traditional in-person physiotherapy rehabilitation model. The data found that mymobility is clinically non-inferior to the standard of care for all outcomes. mymobility users demonstrated a significant reduction of physical therapy utilization post-operatively. Further, mymobility users trended lower on ED visits than the control group and hospital readmissions, though not statistically significant. This platform could aid in decreasing post-operative costs, while improving patient engagement and communication with the healthcare team.

ABSTRACT

Feasibility of Passively Collected Gait Parameters Using a Smart-Phone Based Care Platform Following Total Hip and Knee Arthroplasty+


M. Anderson*, D. Van Andel*, J. Foran, I. Mance, E. Arnold. Orthopaedic Proceedings Vol. 103-B, No. SUPP_9, Published online 15 June 2021.

Key Takeaways: mymobility enables remote gait quality measurements

The purpose of this study was to assess the recovery of gait quality following primary total hip and knee arthroplasty using a smart-phone based care management platform. The recovery curves reflect previous curves captured by traditional gait analysis methods as well as functional and patient reported outcome scores. Capturing real-world gait quality metrics through the phone may provide further insights into objective recovery data not captured by traditional in-clinic assessments.

ABSTRACT

The Recovery Curve for Physical Activity Following Primary Knee Arthroplasty Using Passively Collected Objective Measures with a Smart-phone Based Care Platform and Smart Watch+


M. Anderson*, D. Van Andel*, C.L. Israelite, C. Nelson. Orthopaedic Proceedings. Volume 103-B, No. SUPP_9, Published online 15 June 2021 

Key Takeaways: Objective and reliable data with mymobility

The purpose of this study was to characterize the recovery of physical activity following knee arthroplasty by means of step counts and flight counts (flights of stairs) measured using a smart-phone based care platform.  This data demonstrated a recovery curve similar to previously reported curves for patient reported outcome measures in the arthroplasty arena. Patients and surgeons may use this information to help set goals for recovery following total and partial knee arthroplasty using objective activity measures.

WHITE PAPER

Technology Adoption for Health Care Management Among Older Adults: Embracing App-Based Technology as a Means for Better Managing Post-Operative Care After Arthroplasty


Zimmer Biomet, White Paper, March 2021.

Key Takeaways: Older adults adopt technology.

Older adults are demonstrating a continued and significant adoption of technology. Moreover, baby boomers are increasingly eager to have their health care needs managed through a combination of technology and traditional health care.

OrthoIntel Orthopedic Intelligence Platform

ABSTRACT

Passive Data Collection Across the 6-Week Episode of Care, the Next Evolution in Contemporary Patient Outcomes Monitoring in Total Knee Arthroplasty


Anderson, M.*, J. Lonner, D. Van Andel*, J.C. Ballard. Orthopaedic Proceedings. Volume 103-B, No. SUPP_9. Published online 15 June 2021

Key Takeaways: First-ever example of identifying treatment trends with combination of ROSA and mymobility data in a commercial database

The purpose of the study was to demonstrate the feasibility of passively collecting objective, anonymized data from a commercially available smartphone-based care management platform (sbCMP) and robotic assisted total knee arthroplasty (raTKA). The use of passively collected objective measures in a commercial database across the episode of care was feasible and demonstrated associations between intraoperative and post-operative metrics. 

This is the first integrated data collection and reporting platform to demonstrate  these measures in a commercial population.

*Authored, in part, by a Zimmer Biomet clinical employee

+Funded, in part, by Zimmer Biomet

This material is intended for healthcare professionals. Distribution to any other recipient is prohibited.

All content herein is protected by copyright, trademarks and other intellectual property rights, as applicable, owned by or licensed to Zimmer Biomet or its affiliates unless otherwise indicated, and must not be redistributed, duplicated or disclosed, in whole or in part, without the express written consent of Zimmer Biomet.

Zimmer Biomet does not practice medicine. For indications, contraindications, warnings, precautions, potential adverse effects and patient counseling information, see the package insert or contact your local representative; visit http://www.zimmerbiomet.com for additional product information. Patients must have a compatible mobile device to utilize mymobility. Not all patients are candidates for the use of the mymobility app and surgeons should evaluate individually to determine which patients are appropriate for therapy at home. All names used in the mymobility app examples are fictitious. No identification with actual patients or healthcare professionals is intended or should be inferred.

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