• RHS® Radial Head Prosthesis

Complete System for treating complex fractures

• The RHS is one of the most flexible and comprehensive radial head systems available with the ability to treat complex radial head fractures, arthrosis, and revision. This anatomically designed bipolar system consists of multiple stem diameters and head sizes, which provide the best choice for each patient and is the only bipolar press-fit design that provides biological in-growth. The intraoperative flexibility and modular design also allows for easy insertion with one set of accurate, intuitive instruments for both cementless and cemented implant options.
  
  Clinically proven through the years, the Tornier Radial Head Prosthesis has continued to evolve with the needs of surgeons and the market demands. Today the RHS is one of the most flexible and comprehensive radial head systems available with the ability to treat complex radial head fractures, arthrosis, and revision.
  
  This anatomically designed bipolar system consists of multiple stem diameters and head sizes, which provide the best choice for each patient and is the only bipolar pressfit design that provides biological in-growth. The intraoperative flexibility and modular design also allows for easy insertion with one set of accurate, intuitive instruments for both cementless and cemented implant options.

• The long stem is for cemented use only while the short stem is intended for use with or without bone cement.

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• Advanced Biomaterials

Next Events

• Oct 6-9th
  AssH: 65th Annual Meeting
  Boston, MA
• Oct 14-16th
  OTA Annual Meeting
  Baltimore, MD

Tech Focus

Resorbable Fixation
System Screw

• The bipolar radial head is as effective as a monoblock design for restoring valgus stability in an MCL deficient elbow. ⁴
• The bipolar design maintains optimal congruence with both the capitellum and ulna with self-centering capability.
• Free rotation between the components diminishes torsional stress at the implant/bone interface during pronation and supination resulting in better long term implant fixation and decreased capitellar wear.
• Ti plasma spray enhances long term fixation
• Multiple stem diameters and head sizes allow the best choice to fit every patient, while the modular design allows for easy insertion.

The RHS implants offer multiple options and are based on anotomic studies^1,2,3

• Press-fit Short Stem
  
  The only bipolar design with biological in growth that provides the ability to treat fractures up to 16 mm in length.

• Cementless fixation with Ti Plasma spray on CoCr stems for optimal long term fixation
• ± 10° bipolarity
• 6 mm, 7 mm, 8 mm, 9 mm and 10 mm tapered stem diameters
• Stem length varies with stem diameter 21-24 mm
• Option for 2 neck lengths of 13 mm or 16 mm

• Cemented Long Stem

  • Provides the ability to treat fractures greater than 16 mm in length or revisions
  • 15° neck angle to reproduce anatomic offset
  • ± 17.5° bipolarity
  • 6.5 mm and 8 mm stem diameters
  • Option for 2 neck lengths of 19 mm or 22 mm

References

• 1. Popovic N et al. A comparative Study Between Proximal Radial Morphology and the Floating Radial Head Prosthesis. Journal of Shoulder and Elbow Surgery (2005) 14(4): 433-440.
  
  2. King G et al. An Anthropometric Study of the Radial Head Implications in the Design of a Prosthesis. Journal of Arthroplasty (2001) 16(1): 112-116.
  
  3. Beredjiklian PK et al. Prosthetic Radial Head Components and Proximal Radial Morphology: A Mismatch. Journal of Shoulder and Elbow Surgery (1999) 8(5): 471-475.
  
  4. Pomianowski S et al. Contribution of a Monoblock and Bipolar Radial Head Prosthesis to Valgus Stability of the Elbow. Journal of Bone and Joint Surgery (2001) 83A(12): 1829-1834.
  
  5. Green A et al. In Vitro Performance of Tornier Bipolar Press-fit Radial Head. (2006).

Supporting Documentation

• RHS Radial Head System Brochure (PDF)

• RHS Radial Head System Surgical Technique (PDF)

• Have a Tornier Rep Contact Me About This Product