MasterLoc Hip Flash Cards

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What is the pore size of the mectagrip coating on the MasterLoc stem?

100 -350 microns
How many sizes are available in the MasterLoc implant offering?

12, 1-12
What is the neck angle of the standard offset offering?

135 degrees
What is the neck angle of the high offset neck?

127 degrees
What is the increase in lateralization when moving from a standard offset to a high offset in the MasterLoc system?

6 mm
When adding an increased neck length in the femoral head what is the effect on leg length and offset?

Both increase by approximately .70 x the additional neck length
What size is the trunnions on the stem?

12/14 taper. This is a common taper within the Orthopaedic industry
What is the relationship between the broach and implant of the MasterLoc stem?

The final implant is .30 mm larger than the broach at the proximal lateral, anterior and posterior sides of the stem. The medial side is line to line with stem. The design goal was for the implant to sit within 1 mm of the position of the final broach
When were the first titanium, cement less tapered wedge stems introduced in the market?

The early 1980s
What is the design goal of flattening the anterior and posterior aspects of the femoral necks?

To increase the range of motion in flex ion and extension.
What is the material used with mectagrip coating?

Pure titanium
What color is the standard offset neck in the MaterLoc instrument set?

Gold
What is the color of the high offset neck trunnions within the MasterLoc instrument set?

Black
What is the matching scheme when use the 2 sizes of trial neck trunnions with the broaches?

Necks work with broach sizes 1-6 and 7-12 each neck is marked accordingly
What is the mechanism for achieving initial fixation of the MasterLoc stem?

The friction of the mectagrip coating and the medial / lateral contact of the proximal stem with the medial/ lateral cortical bone
What is the design goal of offering a stem with a reduced distal design?

To minimize the potential of distal potting of the stem. This potting can affect the surgeons ability to implant a stem large enough to fill the medial/lateral metaphysis as the diaphysis will determine maximum stem size in this situation
What is the material used for the substrate of the MasterLoc stem

The base material is a titanium alloy. The coating over this base, or substrate is pure titanium

Author

Mdelong1

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Card Set

MasterLoc Hip Flash Cards

Description

Flash Cards for MasterLoc Hip System

Updated

2016-09-19T17:25:36Z