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implants.
indications.
nailing platform.
A legacy of dependability. A reputation built on trust.
Stryker’s nailing portfolio is the result of over 30 years of continuous innovation and clinical history. We are committed to innovation and putting more options in our customers hands to help you improve patient lives.
Streamlined instrumentation
- One core basic tray is used for all T2 Alpha and Gamma4 indications for platform consistency and ease of use
- Instrumentation that is designed to improve ease of use
Stryker's IMN product features
SOMA designed
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Stryker Orthopedic Modeling and Analytics (SOMA) designed nails, analyzing more than 40,000 3D models made from over 6,000 CT scans of diverse patient populations across age, gender, and ethnicities to address anatomic variability and accommodate patient anatomy.1,2
- Analytical resources developed and maintained by an experienced engineering team, including anatomical measurements, density assessments and fracture heatmaps.
- Internal SOMA comparative assessments derived from computer-based anatomical modeling found that Stryker femoral nails have a better fit compared to competition.1 These findings may not be indicative of clinical performance.
Length Dependent Radius of Curvature
Mismatch of the ROC of the femur and nail is a key factor in potential anterior femoral cortical perforation, as has been confirmed in multiple studies.4,5,6 The Gamma4 long nail, T2 Alpha Retrograde nail and T2 Alpha Antegrade nails change curvature dependent on nail length. This is designed to accommodate patient anatomy.1
Advanced Locking Screws
- Designed with oversized threads that engage with the internal threads on the T2 Alpha and Gamma4 nails, helping to limit relative motion between nail and screw while maintaining bicortical purchase.10
- Designed to reduce toggle up to 50% compared to T2 locking screws.8
- May be preferred in instances when axial stability is desired.9
Guided Targeting
- T2 Alpha and Gamma4 platforms aim to provide surgeons with a reproducible and consistent procedure for distal locking screws.3,11
- Designed to improve accuracy to reduce the risk of nail damage (titanium implants may fail early at regions with high stress concentration – notch sensitivity).12
- A Gamma3 clinical study showed 64% reduced flouroscopy time when using guided targeting compared with the freehand locking method of perfect circles.3
Active Intraoperative Controlled Compression
The amount of compression that can be achieved depends on the indication used
- Femoral Nails (Retrograde and Antegrade GT/PF): 10mm
- Tibia: 7mm
- Humerus: 6mm
Internal Compression
Achieved by using an internal compression screw and driver to apply controlled compression on the locking screw
External Compression
Achieved using a compression driver that engages with internal threads of the nail to facilitate compression.
Gamma4®
We aren't proven because we have a legacy.
We have a legacy because we are proven.
Cephalomedullary nailing (CMN) system for the treatment of intertrochanteric fractures as well as a wide range of proximal femur fractures and associated femoral shaft fractures.
T2 Alpha®
Expanding possibilities; one nail at a time
Resources
Our Nailing Portfolio
Related products
VariAx 2 Mini Fragment
The VariAx 2 Mini Fragment plating system features a complete range of low profile plate and screw options in 2.0mm, 2.4mm and 2.7mm modules. Plates utilize SmartLock variable angle locking technology which permits polyaxial screw placement. T8 locking screws may be angled +/- 15º in any direction for up to a 30º cone. T6 locking screws may be angled +/- 10º in any direction for a total of 20º.
Learn more
References:
- White Paper: Femoral nailing systems: Length dependent ROC - Anatomical Fit - Proximal Protrusion (SOMA), Content ID: SOMA-WP-2
- Internal report № D0000124129, Rev AF
- Konda SR, Maseda M, et al Observational prospective unblinded case-control study to evaluate the effect of the Gamma3® distal targeting systemfor long nails on radiation exposure and time for distal screw placement, Injury. 2023;54(2):677-682. doi: 10.1016/j.injury.2022.11.046
- Buford WL Jr, Turnbow BJ, et al Three-dimensional computed tomography-based modeling of sagittal cadaveric femoral bowing and implicationsfor intramedullary nailing J Orthop Trauma 2014 Jan;28(1):10-6 doi: 10 1097/BOT 0000000000000019
- Harma A, Germen B, et al The comparison of femoral curves and curves of contemporary intramedullary nails Surg Radiol Anat 2005Dec;27(6):502-6 doi: 10 1007/s00276-005-0019-2
- Maratt J, Schilling PL, et al Variation in the femoral bow: a novel high-throughput analysis of 3922 femurs on cross-sectional imaging J OrthopTrauma 2014 Jan;28(1):6-9 doi: 10 1097/BOT 0b013e31829ff3c9
- Schmitt A, Letissier H, et al Three-dimensional orientation of the femoral curvature How well does it match with the sagittal curvature of femoralimplants? Orthop Traumatol Surg Res 2019 Feb;105(1):11-16 doi: 10 1016/j otsr 2018 09 018
- White Paper, Fatigue Strength of Locking Screws, T2-WP-6, Rev 1
- T2-ST-37, Rev-1, 09-2022
- Hoffmann S, Gerber C, et al Effect of angular stability and other locking parameters on the mechanical performance of intramedullary nails BiomedTech (Berl) 2015;60(2):157-64 doi: 10 1515/bmt-2014-0100
- Ehlinger M, Dillman G, et al Distal targeting device for long Gamma nail(®) Monocentric observational study Orthop Traumatol Surg Res2013;99(7):799-804 doi: 10 1016/j otsr 2013 06 006
- Hsu CC, Yongyut A, et al Notch sensitivity of titanium causing contradictory effects on locked nails and screws Med Eng Phys2010;32(5):454-60 doi: 10 1016/j medengphy 2010 03 006
- T2 Alpha Femur Retrograde vs T2 SCN (Internal Report № A0046864, Ver 1)
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