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GLOBAL® STEPTECH® APG Shoulder System
GLOBAL® STEPTECH® APG Shoulder System
The GLOBAL® STEPTECH®APG Glenoid Component has been designed to correct excessive retroversion caused by posterior glenoid bone loss, closely recreate the original glenohumeral joint line, and reduce the removal of healthy bone. The prosthesis incorporates a proprietary step technology design with an anterior backside surface that is spherical and a posterior backside surface that is conical to effectively counteract posterior loading. The amount of correction is managed by the height (+3, + 5, or +7mm) of the posterior step built into the component. All of these features work together to potentially decrease the shear stresses at the bone/implant and bone/cement interfaces, thereby increasing implant stability.
GLOBAL® STEPTECH®APG Implants may potentially:
- Reduce the need for glenoid bone graft to correct asymmetrical wear
- Reduce the surgical time needed to correct asymmetrical wear using bone graft
- Reduce the extent of the high side reaming, and the resulting loss of healthy bone and joint medialisation
MEDIA
The GLOBAL® STEPTECH®APG Glenoid Component has been designed to correct excessive retroversion caused by posterior glenoid bone loss, closely recreate the original glenohumeral joint line, and reduce the removal of healthy bone. The prosthesis incorporates a proprietary step technology design with an anterior backside surface that is spherical and a posterior backside surface that is conical to effectively counteract posterior loading. The amount of correction is managed by the height (+3, + 5, or +7mm) of the posterior step built into the component. All of these features work together to potentially decrease the shear stresses at the bone/implant and bone/cement interfaces, thereby increasing implant stability.
GLOBAL® STEPTECH®APG Implants may potentially:
- Reduce the need for glenoid bone graft to correct asymmetrical wear
- Reduce the surgical time needed to correct asymmetrical wear using bone graft
- Reduce the extent of the high side reaming, and the resulting loss of healthy bone and joint medialisation
Features & Benefits
GLOBAL® STEPTECH® Implants
Advanced Proprietary Step Technology
- Spherical anterior and conical posterior backside offer dual surface design to effectively counteract posterior loading
- Various degrees of correction are managed by the height (+3, + 5, or +7mm) of the posterior step built into the PREMIERON X-Linked Polyethylene
GLOBAL® STEPTECH® Implants
Premieron X-Linked Polyethylene
- 85% reduction in wear debris over conventionally manufactured and sterilised components1
- GUR 1020 polyethylene resin
- 5 Mrad of irradiation
- Thermally treated to 155˚ F to eliminate free radicals for an oxidatively stable material
- Maintains mechanical integrity
GLOBAL® STEPTECH® APG Instrumentation System
Anterior/Posterior Scraper, Superior/Inferior Scraper +3, +5, +7mm, L or R
- An alternative to accurately prepare the posterior surface of the glenoid by hand
- Scrapers designed for the left or right shoulder and each of three different step heights.
GLOBAL® STEPTECH® APG Instrumentation System
Peripheral Drill Guide +3, +5, +7mm, L or R
- Allows for accurate drilling of three peripheral holes
- Color-coded hole locations match respective Peripheral Drill Bit Anterior, Superior/Posterior for each step height for easy identification
GLOBAL® STEPTECH® APG Instrumentation System
Oscillating Rasp and Rasp Guide +3, +5, +7mm, SM or LG
- Oscillating Rasp mates with the Rasp Guide to accurately prepare the posterior surface of the glenoid when used with a power source.
- Rasp Guide protects the prepared anterior surface and central drill hole during preparation of the posterior surface
- Two different size guides offered for each of three different step heights
References
- Wirth MA, Korvick DL, Basamania CJ, et al. Radiologic, mechanical and histologic evaluation of 2 glenoid prosthesis designs in a canine model. Journal of Shoulder and Elbow Surgery. 2001;10(2) 140-148.
190195-210923
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