Smart Modular Thinking

CONCEPT
SMART MODULAR THINKING

M-Vizion is Medacta’s modular femoral revision system designed to address demanding primary and complex revision cases in a versatile and flexible manner. M-Vizion has been conceived with a Smart Modular Thinking to address the main challenges and surgeon needs in femoral revision surgeries.

SMART MODULAR JUNCTION
M-Vizion has been conceived with an exclusive mechanical design to increase the taper’s resistance against one of the main concerns, fretting-induced fractures[1,2,3,4,5], providing for higher stability at the modular junction. An improved resistance to fretting-induced fractures thanks to: High taper mechanical resistance and High conical connection strength[6].

AN ENHANCED BONE-IMPLANT INTERFACE AGAINST SUBSIDENCE
Diaphyseal stability
Achieved thanks to the Wagner concept embraced by the M-Vizion on the distal part. A concept with 30+ years of clinical success that allows for an immediate diaphyseal stability and for bypassing regions of proximal bone loss[8,9,10,11].
Improved proximal bone fixation
Possible thanks to the addition, on the proximal body, of the Titanium Plasma Spray Mectagrip coating, featuring over 10 years of clinically proven success[11]. In cases where the proximal femur is not too compromised, Mectagrip provides for a mechanically stronger bone-implant interface, resulting in a potentially improved load transfer[11].

A proven robust solution for a wide patient range.

 

Every femur is different, therefore, every implant should be specifically shaped. M-Vizion allows for this personalization thanks to its modularity. With a comprehensive product range that allows for intraoperative flexibility and versatility while reconstructing the hip joint, the M-Vizion makes it possible to adapt to different patient anatomies and surgical scenarios. This enables the surgeon to reconstruct the hip’s center of rotation, anteversion and leg length discrepancy, irrespective of the different defects’ scenarios and where distal fixation is achieved.

HIGH FLEXIBILITY
A total length from 193 to 323 mm, with different possible combinations to address different femurs.

 

M-Vizion features a straightforward instrumentation, engineered to simplify the surgical technique and maximize efficiency, confidence and reproducibility.

STREAMLINED TRIALS
allowing to reduce the surgical steps and surgical time.
IN VIVO AND BACKTABLE ASSEMBLING OPTIONS
allowing to chose the preferred surgical technique
MILLIMETRIC GRADED REAMERS
allowing for a step-by-step accurate and precise preparation, respecting the bone

 

PRODUCT RANGE
M-VIZION offers a huge variety of possible combinations

PROXIMAL BODY RANGE

LENGHTS

6 lenghts (10 mm increment)

OFFSETS

  • Standard
    (CCD angle 132°, offset 37 mm)
  • Lateralized
    (CCD angle 132°, offset 43 mm)

DIAMETERS

4 diameters

DISTAL STEM RANGE

TAPER

  • Straight
  • 4° taper

LENGHTS & DIAMETERS

  • 3 lenghts
  • 17 size diameters (1mm increment)
    Diameters from 12 mm to 28 mm
HIGH FLEXIBILITY

A total length from 193 to 323 mm, with different possible combinations to address different femurs.

DESIGN FEATURES
  1. SURFACE COATING: TiNbN
    To avoid the cold-welding effect
  2. SHORT 12/14 TAPER
    Reduced risk of liner wear
  3. ROUNDED SHOULDER
    Easier reassembly of the GT
  4. 3 HOLES
    Compatible with cerclage cables, allow for the reconstruction of the great trochanter through the implant, increasing stability and bone restoration
  5. MIRROR POLISHED NECK
    Minimized soft tissue damage and liner wear
  6. MECTAGRIP
    For enhanced proximal fixation  
  7. GRIT BLASTED SURFACE
    Provides for potential long-term stability through bone fixation
  8. 2° TAPER
    Get a primary anchoring
  9. BULLET-SHAPED TIP
    Easier stem insertion
  10. WAGNER-TYPE CROSS SECTION
    8 longitudinal ribs for an immediate stability and enhanced fixation
INSTRUMENTATION

M-Vizion features straightforward instrumentation, engineered to semplify the surgical technique and maximize efficiency, confidence and reproducibility.

STREAMLINED TRIALS

The Trial Proximal Body has been designed with a plastic sleeve, which allows for trial the proximal body directly on the final stem. The inner plastic sleeve protects the cone of the final implant.

 

IN VIVO AND BACKTABLE ASSEMBLING OPTIONS

Allowing to chose the preferred surgical technique.

MILLIMETRIC GRADED REAMERS

Allowing for a step-by-step accurate and precise preparation, respecting the bone.
Tapered reamers correspond to implant diameter(press-fit excluded) and are available in 1 mm steps.

  • Distal reamer shape (Blue)
  • Distal Stem shape (Black)
TAILORED EDUCATION

The M.O.R.E. Institute offers effective and continuous education to surgeons, with the aim to improve patient outcomes and surgical proficiency. The M.O.R.E. Institute was built and has been growing, around the concept of sharing experience within the international medical community. It has become a unique and global education platform, tailored to everyone's needs.

The M-Vizion Educational Program can count on an evergrowing network of revision experts all over the world, and offers dedicated and various activities (Learning centers, Reference center visitations, user meetings, symposia) for continuous education and discussion.

M.O.R.E. INSTITUTE

REFERENCES

[1] Krull A, Morlock M, Bishop NE Factors influencing taper failure of modular revision hip stems 2018 Apr;54:65-73. 
[2] Pontus N Svensson I Fatigue Fracture in Dual Modular Revision Total Hip Arthroplasty Stems: Failure Analysis and Computed Tomography Diagnostics in Two Cases The Journal of Arthroplasty Volume 29, Issue 4, April 2014, Pages 850-855 
[3] Slover J, Bendo A, Forman J Fatigue Failure of Newer Generation Modular Revision femoral Stem Following Fracture Healing – Bulletin of the Hospital for Joint Diseases 
[4] Konan S, Garbuz DS, Masri 1 BA Duncan CP, Modular tapered titanium stems in revision arthroplasty of the hip: The Risk and Causes of Stem Fracture 
[5] Sulje Z, Crnogaca K, Fracture of Revision Modular Femoral Stem – MOJ Orthopedics & Rheumatology Volume 6 Issue 6 - 2016 
[6] Data on file Medacta. 
[7] Baktır A, Karaaslan F, Gencer K - Femoral Revision Using the Wagner SL Revision Stem: A Single-Surgeon Experience Featuring 11–19Years of Follow-Up - The Journal of Arthroplasty 30 (2015) 827–834. 
[8] D. Regis, A. Sandri, I. Bonetti, M. Braggion, P. Bartolozzi - Femoral
revision with the Wagner tapered stem - J Bone Joint Surg Br 2011;93-B:1320–6. Received 1 October 2010; Accepted after revision 2 June 2011. 
[9] Gutierrez del Alamo J, Garcia-Cimbrelo E, Castellanos V, Gil-Garay E, Radiographic Bone Regeneration and Clinical Outcome With the Wagner SL Revision Stem - The Journal of Arthroplasty Vol. 22 No. 4 2007. 
[10] Bohm P, Bischel O - Femoral Revision with the Wagner SL Revision Stem - THE JOURNAL OF BONE & JOINT SURGERY · JBJS.ORG. 
[11] Walsh et al. Bone ongrowth and mechanical fixation of implants in cortical and cancellousJournal of Orthopaedic Surgery and Research (2020) 15:177

Resources
For additional resources please visit resources.medacta.com