Stryker Perform Shoulder

Question 1

What are the diameters of the “collars” in respect to the different humeral stem sizes?

Answer 1

Size 1 - 32mm
Size 2 - 34mm
Size 3 - 38mm
Size 4 - 42mm

* Collar size does NOT change as “plus” sizes or “long/XL” sizes change.*

Question 2

What are the “lengths” of the different humeral stem sizes?

Answer 2

Size 1 - 67mm
Size 1+ - 70mm

Size 2 - 74mm
Size 2+ - 77mm

Size 3 - 81mm
Size 3+ - 84mm

Size 4 - 88mm
Size 4+ - 91mm

* 7mm different from size to size starting from 67mm-88mm*

**3mm to every “+” size **

Question 3

What’s length of “long” and “XL” stems?

Answer 3

Size 1+ Long - 99mm
Size 2+ Long - 109mm
Size 3+ Long - 120mm
Size 4+ Long - 130mm

* ~10mm +/- per size*

Size 2 XL - 162mm
Size 3 XL - 163mm

* ~ 160mm*

Question 4

How much can you “build up” on the humerus?

Answer 4

15mm MAX (9mm Spacer + 6mm Insert)

Question 5

What’s the “press fit” difference from Standard Compactor to Standard Stem?

Answer 5

1mm of press fit proximally due to coating
0.6mm press fit in metaphyseal zone
Line to line distally

Question 6

What’s the “press-fit” of Standard Compactor compared to a PLUS Stem?

Answer 6

2.5mm press fit proximally due to coating
1mm increase at metaphyseal zone
3mm longer than Standard Compactor

2.5mm total jump from Standard Compactor

Question 7

Is the “coupler” for humeral head titanium?

Answer 7

Yes!

Question 8

What’s the diameter of the “central screw” drill ?

Answer 8

4.0mm

Question 9

How much lateralization do you get with a “+3” baseplate?

Answer 9

5mm…(+2 MFD and +3 offset)

Question 10

What’s the baseline offset of a standard baseplate?

Answer 10

2mm

Question 11

What are the lengths of the press fit post options?

Answer 11

Short Post - 7mm
- Total construct length (Boss 10mm + Post length) = 17-18mm

Long Post - 15mm
- Total construct length (Boss 10mm + Post Length) = 25-26mm

Question 12

What are the central screw diameter and length options?

Answer 12

Central Screw Diameters = 6.5mm and 9.5mm

25mm-50mm…in 5mm increments

9.5mm used typically only for revision.

Question 13

What are the peripheral screw length options?

Answer 13

14mm-54mm…4mm increments

Diameters are 5mm

Question 14

What’s the diameter of the “boss” drill?

Answer 14

10mm

Question 15

What’s the “press fit” of a standard baseplate boss to boss drill?

Answer 15

1mm

“Boss” of baseplate is 11mm in diameter
“Boss” of the Boss Drill is 10mm in diameter

Question 16

What’s “peripheral screw angulation” for standard baseplate?

Answer 16

0-25 degrees S-I

12 degrees (Transversely)

Question 17

What’s the “peripheral screw angulation” in a lateralized baseplate +3 and +6?

Answer 17

0-25 degrees S-I

+3 = 9 degrees (Transversely)
+6 = 7 degrees (Transversely)

Question 18

What’s “peripheral screw angulation” for full wedge and half wedge baseplates?

Answer 18

0-25 degrees S-I

Full Wedge = 6 degrees (Transversely)
Half Wedge = 10 degrees (Transversely)

Question 19

How many “locking” and “compression” holes on a standard or lateralized baseplate?

Answer 19

2 multi variable angle locking olives and 2 fixed angle compression

Question 20

How many “locking” and “compression” holes on “wedge” baseplates?

Answer 20

3 multi variable angle locking and 1 fixed angle compression

Question 21

What’s the “press fit” from a 6.5mm central screw drill hole to a 6.5mm central screw?

Answer 21

2.5mm

6.5mm Drill is 4mm in diameter

Question 22

Can you broach up compactors without reaming?

Answer 22

Yes up one size.

If soft bone can use bigger size

If hard bone recommend reaming due to high risk of fracture.

Question 23

What are the Perform Humeral “Head” Diameters?

Answer 23

Perform Humeral Head Diameters…37mm-56mm

+2mm increments…BESIDES 43-46mm

Question 24

Perform Humerus “Stemless” total depth

Answer 24

Size 1 - 21mm
Size 2 - 23mm
Size 3 - 25mm
Size 4 - 27mm

* +2mm increments*

Question 25

Do I need to use a lateralized or augmented baseplate with the “Perform Stem”?

Answer 25

Yes, because Perform system is inlay not designed to be lateralized off the humerus due to headcut of 135 degrees…Otherwise instability can occur

Question 26

What's the press-fit from a "stemless" trial to "stemless" implant?

Answer 26

1.25mm

Question 27

Can you use a 42mm glenosphere on a size 1 or 2 stem?

Answer 27

NO...42mm glenosphere only compatible with size 3 or 4 stem

Question 28

Can you use a 33mm glenosphere on a size 3 or 4 stem?

Answer 28

NO...33mm glenosphere only for size 1 or 2 stem

Question 29

How much lateralization do you get with a "+6mm" baseplate?

Answer 29

8mm total

Question 30

What is the backside radius curvature of a full wedge or half wedge baseplate?

Answer 30

40mm of spherical arc/radius

Question 31

What are the glenosphere "options"?

Answer 31

Standard, Lateralized and Eccentric

Question 32

What are the glenosphere sizes?

Answer 32

33mm (Only in Lateralized), 36mm, 39mm and 42mm

Question 33

How much lateralization can you get from glenosphere?

Answer 33

+3mm..NOT +6mm!!!

Question 34

Is Perform an “inlay” or “onlay” system?

Answer 34

Inlay! Uses metaphyseal seating/fixation.

Question 35

How many humeral head options for Perform system?

Answer 35

20 (CoCr & Ti) 9 (CoCr - Only) = 29 3 Couplers = 87 humeral head options/constructs

Question 36

What’s difference between a “standard” and “retentive” poly insert?

Answer 36

Retentive has a +2mm wall height for better stability

Question 37

How much of total central screw length is maintained within the post of the baseplate?

Answer 37

10mm