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NGD offers a contemporary hip replacement implant, developed in cooperation with Dr. Terry Braden of Michigan State University, which is based on sound design concepts of a hip with over 20 years of excellent clinical results.

The benefits of the New Generation Hip Stem are:

I. Overall Length: The stem is shorter by an average of 6 mm than other stems currently available. This modification to the design was incorporated to help ensure a circumferential cement mantle distally by decreasing the probability of cortical contact with the distal tip of the femoral component. Although it is recognized that the neck resection will determine the angle in which the stem will seat within the canal, and if cortical contact should occur, shortening the stem will provide a little more margin for error in one of the most difficult aspects to performing a hip replacement, the neck resection.

II. Distal Grooves / Proximal - Distal Tapering: The Richards stem is a "block" design that has reportedly had rotational and cement compression issues. To address these issues NGD has incorporated distal grooves to the stem to aid in rotational stability. For the inferior loading characteristics of the Richards II component, we have tapered the stem from proximal to distal to allow a greater transfer of compressive loads to the cement mantle. Cement is stronger in compression than in tensile loading. Combine these features with the current flat-back geometry of the stem and you have improved stability of the femoral component.

III. No Grit Blast: Clinical results suggest that grit blast on a femoral component may be detrimental, and a generator of increased debris should the implant loosen.

IV. Cement Mantle: Aseptic loosening is one of the biggest complications in canine total hip replacement. Much of this can be attributed to thin and/or incomplete cement mantles. The New Generation design provides for a nominal cement mantle of 3mm. A cement mantle of at least 3mm is believed to be ideal for it reduces the stresses within the cement mantle, thus increasing the potential for long-term success. The New Generation stem allows for more cement mantle proximal /lateral, proximal/medial and distal than other systems currently available. See the difference for yourself by comparing our X-ray template to the system you are currently using.

V. Advanced Casting Process: The New Generation Stem is made from a Cobalt Chrome Alloy using a proprietary and advanced casting process. This process is used extensively for aero -space products, human joint replacement devices and now veterinary implants.

VI. Tear Drop Collar Design: The medial aspect of the collar is broader than the lateral aspect. The result is a collar that resembles a "teardrop". This permits greater access to the cement mantle should a revision or explantation be necessary.

VII. Modularity: The Richards II was a fixed head component that offered little opportunity to maximize joint tension and range of motion. Attainment of these objectives was solely dependant upon the accuracy of the neck resection. Should the resection be too low it would result in a loose hip, too high and it would be too tight. With the New Generation Hip you now can make your neck resection, assess your patient's tension needs, and adjust the neck length accordingly.

VIII. Sizing: The New Generation Hip stem comes in Small, Medium, Large and X-large stem sizes.

IX. Implantation: In all likelihood these components can be implanted using your current instrumentation. For reference, please review the sizing chart below for assimilation between competitive systems.

The benefits to the New Generation UPESS Femoral Head and Acetabular Cup are:

I. UPESS Femoral Head: Ultra-Polished Exacting Spherical Surface; that is what the New Generation femoral head is about. Our heads are manufactured to standards comparable to those of the human femoral head components. The surface on our heads creates a low friction articulation to further reduce the potential for polyethylene wear. UPESS heads are offered in 17mm O.D. and +0 +3 +6 neck length extensions.

II. CSF Acetabular Cups: NGD offers an Acetabular Cup that is manufactured from the highest quality, Calcium-Sterate free, Ultra-High Molecular Weight Polyethylene. Calcium-Sterate is a lubricating additive used in the manufacturing of polyethylene to keep the material from sticking to the machinery. The use of Calcium-Sterate has been reported to result in poorer consolidation of the polyethylene powder, which then leads to poor wear characteristics. Our line of Acetabular Cups come in O.D. sizes of 23mm, 25mm, 27mm and 29mm. The I.D. of the cups are all a common 17mm.

Once you implant this prosthesis you will agree that this is truly a New Generation Device!

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Aceabular Reamers

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