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Revitan® Modulair Femoral Revision System

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The stem taper design for distal anchoring is rooted from 20 years of clinical experience1,2, with the Wagner SL® Revision stem. The modularity of the Revitan system is designed to offer flexibility while addressing the diaphysis and metaphysis of the patient independently, to accommodate a wide range of indications.

Along with modularity, the 2 degree taper, longitudinal ribs and material composition are designed to support OR efficiency, allowing the surgeon to choose their strategy based on the patient’s needs and amount of bone loss.

Revitan-Hip-System-image

Taper junction fracture remains a concern for many revision surgeons and specialists. Risk factors for fractures of the modular junction include excessive body weight and inadequate proximal osseous support because of trochanteric osteotomy, reduced preoperative bone stock, osteolysis, loosening and implant undersizing. One study suggests the use of implants with strengthened junctions when using modular stems in such patients.3

With this geometry of four zones, the maximal stress of the bending forces is concentrated on the section with the smallest diameter. This feature prevents formation of metallic debris as there is no contact between the proximal and distal implant components in this section.

  • Screw thread for the conical nut
  • Cylindrical zone for centering both components during assembly
  • Conical zone with structured surface to assure mechanical connection between the components
  • Zone with smaller diameter to concentrate the flexion forces and to mitigate metal abrasion during micromovement

The Revitan Connection Taper is Divided into Four Zones In case of secondary revision, the connection allows for intraoperative dismantling of the components. This assures easy and optimal adjustment of leg length and version. Both adjustments can be done in two independent steps.

Additional Information

  1. Mc Innis D. et al.: “Femoral Revision with a Fluted, Tapered, Modular Stem (Seventy patients followed for a mean of 3.9 years); The Journal of Arthroplasty, Vol. 21, No. 3, 2006.
  2. Vendittoli P.A. et al.: “Performance of Modular Tapered Fluted Titanium Stems for Femoral Revision”; Abstract 0-118 from the European Hip Society 2006 Domestic Meeting.
  3. Fink B. et al.: “Modified transfemoral approach to revision arthroplasty with uncemented modular revision stems.”; Operative Orthopädie und Traumatologie 1/07.

 

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Biomet Orthopedics
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P.O. Box 587
Warsaw, Indiana 46581 USA


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