ORTHOPAEDICS

LEGION^◊ CONCELOC^◊ Cementless Total Knee System

Building on a legacy of trusted innovation with patented 3D-printed cementless technology, providing CONCELOC biological fixation and efficiency and versatility in the OR^1,2

CONCELOC Advanced Porous Titanium

CONCELOC is our patented method of creating a fully randomised porous structure with predictable porosity, pore size and node interconnectivity.

Made from Ti-6Al-4V and shown to provide excellent biological fixation in a validated ovine model^3,4
The same technology with over 3.5 years of proven clinical history in our REDAPT^◊ Revision Cementless System⁵
Features a porosity of 80%⁶ and a pore size of 228μm to 633μm⁷

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*Compared to symmetrical tibial baseplates.

Citations

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2. Watson J, Jordan J. LEGION◊ Primary Knee System for total knee arthroplasty: Design rationale and early results. Bone & Joint Science. 2015;5(1):1-8.

3. Fenwick S, Wilson D, Williams M, et al. A load bearing model to assess osseointegration of novel surfaces - A pilot study. World Biomater Cong, Amsterdam, NL, May 28-Jun 1, 2008, 233.

4. Smith & Nephew 2015. NCS249

5. Moriarty P, Vles G, Haddad F, Konan S. Early clinical and radiological outcomes of a new tapered fluted titanium monobloc revision stem in hip arthroplasty. Act Orthop Trauma Surg. 2021 Jan 24. [Epub ahead of print].

6. Smith + Nephew 2015. Orthopaedic Research Report OR-14-091A

7. S&N Material Specification 0071120.

8. Westich, GH, Laskin RS, Haas SB, Sculco TD. Resection Specimen Analysis of Tibial Coverage in Total Knee Arthroplasty. Clin Orthop Rel Res. 1994;309:163-175.

9. Shah S, Agarwal N, Jain A. MRI Based Comparison of Tibial Bone Coverage by Five Knee Prosthesis: Anthropometric Study in Indians. J Arthroplasty. 2015;30:1643-1646.

10. Martin S, Saurez A, Ismaily S, et al. Maximizing Tibial Coverage Is Detrimental to Proper Rotational Alignment. Clin Orthop Relat Res. 2014;472:121–125.

11. Westrich GH, Haas SB, Insall JN, Frachie A. Resection specimen analysis of proximal tibial anatomy based on 100 total knee arthroplasty specimens. J Arthroplasty. 1995;10:47–51.v

12. ODEP. Orthopaedic Data Evaluation Panel. Available at http://www.odep.org.uk. Accessed 04 August 2021.

13. Westich GH, Agulnick MA, Laskin, RS, Haas SB, Sculco TP. Current analysis of tibial coverage in total knee arthroplasty. The Knee. 1997;4:87-91.

14. Laskin RS, Davis J. Total knee replacement using the Genesis II prosthesis: a 5- year follow up study of the first 100 consecutive cases. Knee. 2005;12(3):163-167.

15. Victor J, Ghijselings S, Tajdar F, et al. Total knee arthroplasty at 15-17 years: does implant design affect outcome? Int Orthop. 2014;38(2):235-241.

16. Teeter MG, Thoren J, Yuan X, et al. Migration of a cemented fixed-bearing, polished titanium tibial baseplate (Genesis II) at ten years. Bone Joint J. 2016;98- B:616-621.

17. Batailler C, White N, Ranaldi FP, et al. Improved implant position and lower revision rate with robotic assisted unicompartmental knee arthroplasty. Knee Surg Sports Traumatol Arthrosc. 2019;27:1232.

18. Herry Y BC, Lording T, Servien E, Neyret P, Lustig S. Improved joint-line restitution in unicompartmental knee arthroplasty using a robotic-assisted surgical technique. Int Orthop. 2017;41:2265-2271.

19. Bollars P, Boeckxstaens A, Mievis J, Kalaai S, Schotanus MGM, Janssen D. Preliminary experience with an image free handheld robot for total knee arthroplasty: 77 cases compared with a matched control group. Eur. J. Orthop Surg Traumatol. 2020;30(4):723-9

20. Smith+Nephew 2020. Systematic literature review and meta-analysis of the accuracy, efficiency and satisfaction using VISIONAIRE. Internal Report. EA/RECON/VISIONAIRE/001/v6.

21. Abane L, Anract P, Boisgard S, Descamps S, Courpied JP, Hamadouche M. A comparison of patient-specific and conventional instrumentation for total knee arthroplasty: A multicentre randomised controlled trial. Bone and Joint Journal. 2015;97(1):56-63.