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About this product

Division: Knee Reconstruction
Category: Revision Knees

The SIGMA® TC3 design is a semi-constrained device available within the SIGMA Knee System. It is indicated for use in cases where the lateral collateral ligament is absent or deficient. The SIGMA TC3 Femoral and Tibial Insert components incorporate the clinically successful design characteristics of the original TC3 (first implanted in 1993). If the medial collateral ligament is deficient, in some cases the use of S-ROM® Noiles may be required.

 

SIGMA TC3 Femoral components share common design with the SIGMA Posterior Stabilized primary femur, with the exception of the femoral box which maintains the same width but higher SI dimension to allow for more constraint. This system's approach to revision knee surgery provides the surgeon with maximum intraoperative flexibility as the surgeon can decide the extent of constraint, mixing and matching primary and revision components using the same MBT Revision Tibial Tray.

 

The SIGMA TC3 is available in both Fixed Bearing and Rotating Platform options. The SIGMA TC3 RP is designed to reduce the torsional forces at implant-bone interface during gait. The Metaphyseal Sleeves are used with both the femoral and tibial components to transfer the aid for implant fixation and stimulate bone growth.

 

The SIGMA TC3 Knee is intended for cemented use only, while Metaphyseal Sleeves are for cementless use.

 

Features & Benefits

Features Benefits

Unique tibial bearing options

  • Allows for either rotating platform or fixed bearing tibial constructs
  • Only company to provide rotating platform in the revision constraint (varus valgus constraint) level

Common MBT Revision Tibial Base across multiple systems with varying levels of implant constraint

  • Intra - operative flexibility
  • Address an array of patient needs
  • OR efficiency with common tibial base and preparation as used in higher constrained implant options
  • Allows for bearing rotation that reduces torsional stresses on tibial base1

Metaphyseal sleeves for tibia and femur2

  • Modular porous sleeves accommodate Engh Type II bone defects 
  • Provide rotational stability
  • Compressively load the bone according to Wolff’s Law
  • Intra - operative flexibility
  • Restores varying patient anatomies

Streamlined Instrumentation

  • Intra - operative flexibility
  • Common instrumentation if need to increase levels of constraint
  • Addresses an array of patient needs
HP Instrumentation

SIGMA®  High Performance Instruments drive performance through efficiency, precision, and flexibility. It's a system that provides surgeons with one set of instruments, no matter their approach, with the use of a modular delivery system. Quick release controls allow for one-handed instrument positioning, with locking mechanisms that are easy to activate, and color-coded for clear visual identification. The quick connect power pinning system enhances usability .

 

1. Malinzak, RA, Small, SR, Rogge, RD, Archer, DB, Oja, JW, Berend, ME, Ritter, MA. The Effect of Rotating Platform TKA on Strain Distribution and Torque Transmission on the Proximal Tibia. The Journal of Arthroplasty. 2014; 29:541–547 
2. Agarwal S, Azam A, Morgan-Jones R. Metal metaphyseal sleeves in revision total knee replacement Bone Joint J. 2013;95-B(12):1640-4.

 

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Please refer to the surgical technique guide or package inserts if included for a complete list of indications, contraindications, precautions and warnings. For further information on DePuy Synthes Products, please contact your local DePuy Synthes Representative .
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