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1

KneeAlign

®

 2 System

 Surgical Technique Manual

Set up

Install Sensor Battery

a 

 Open navigation unit package and pass sterile inner 

blister package into operative field.

b 

 Remove navigation unit and sensor battery from  

blister pack.

c   

Turn navigation unit on by pressing center button.

d 

Insert battery into sensor and close cover.

TIP:   

Sensor LED will slowly flash yellow to indicate battery  

has been inserted correctly.
LED will momentarily flash green and navigation unit  

will move to next screen when sensor is found.

Confirm Sensor ID

 •   

Navigation unit screen displays serial number of 

sensor to which it is paired. If this number matches 

that marked on sensor being used, press center 

button.Otherwise, press left button to let navigation 

unit find another sensor. Repeat until correct sensor 

serial number is displayed. 

TIP:   

Navigation unit will move to next screen when pairing  

is confirmed.

Step

Step

1

2

 

 

Table of Contents

 

SETUP

 Step 

1

  

   Install Sensor Battery

 .....................................................

1

 

 Step 

2

  

   Confirm Sensor ID

...........................................................

1

 

 Step 

3

  

   Attach Bracket

 ..................................................................

2

 

 Step 

4

  

   Hold Horizontally

 ............................................................

2

  

 Step 

5

  

   Hold Vertically

 ...................................................................

3

 

 Step 

6

  

   Verify Calibration

 .............................................................

3

 

 Step 

7

  

   Assemble Femoral Jig

 ...................................................

4

 

 Step 

8

  

   Assemble Tibial Jig

 .........................................................

5

 

 Step 

9

  

   Select Knee

 ........................................................................

6

 

 Step 

10

  

   Select Bone

 ........................................................................

6

 

FEMUR

 Step 

1

  

   Secure on Femur

 .............................................................

7

 

 Step 

2

  

   Input A/P Offset

 ...............................................................

7

 

 Step 

3

  

   Attach Sensors

 .................................................................

8

 

 Step 

4

  

   Maneuver Leg

 ...................................................................

8

 

 Step 

5

  

   Set Resection Plane

 ........................................................

9

 

 Step 

6

  

   Set Resection Depth

 ....................................................

10

 

 Step 

7

  

   Finished Femur

 ..............................................................

11

 

TibiA

 Step 

1

  

   Attach Sensors

 ...............................................................

12

 

 Step 

2

  

   Secure on Tibia

 ...............................................................

12

 

 Step 

3

  

   Match Probe Offsets

 ....................................................

13

 

 Step 

4

  

   Register Lateral Malleolus

 .........................................

14

 

 Step 

5

  

   Register Medial Malleolus

 .........................................

14

 

 Step 

6

  

   Set Resection Plane

 ......................................................

15

 

 Step 

7

 

   Set Resection Depth

 ....................................................

16

 

 Step 

8

  

   Finished Tibia

 ..................................................................

17

 

diSPoSAl

 

 ..................................................................................................................

17

 TRoUblEShooTing

 Setup

 ......................................................................................................

18

 

 

Femur Maneuver

 ..............................................................................

18

 

 Tibia

 ........................................................................................................

19

 

 System

 ...................................................................................................

19

 SPEciFicATionS

 

Ordering Information

 .....................................................................

20

This technique guide describes the proper use of the KneeAlign® 2  
System. This system is not compatible with its previous generation, 
the KneeAlign® System and the two systems should not be used 
in the same operating environment. Any reference below to the 
“navigation unit” or “sensor” refers to the KneeAlign® 2 unit and 
Reference Sensor 2 system components. 

Knee

Align

®

 2 System

precise 

•

 alignment 

•

 simplified

 

+ –

a

d

c

b

Содержание KneeAlign 2 System

Страница 1: ...ite 500 Aliso Viejo CA 92656 866 582 0879 www orthalign com OrthAlign is committed to providing surgeons with user friendly cost effective surgical navigation products for precise alignment For more information about the KneeAlign 2 System please contact us at 866 582 0879 or info orthalign com About OrthAlign Inc ...

Страница 2: ...rm Sensor ID 1 Step 3 Attach Bracket 2 Step 4 Hold Horizontally 2 Step 5 HoldVertically 3 Step 6 Verify Calibration 3 Step 7 Assemble Femoral Jig 4 Step 8 AssembleTibial Jig 5 Step 9 Select Knee 6 Step 10 Select Bone 6 FEMUR Step 1 Secure on Femur 7 Step 2 Input A P Offset 7 Step 3 Attach Sensors 8 Step 4 Maneuver Leg 8 Step 5 Set Resection Plane 9 Step 6 Set Resection Depth 10 Step 7 Finished Fem...

Страница 3: ...ep 1 Rest navigation unit horizontally on level surface with screen facing upwards and hold steady with ball in circle Navigation unit will beep twice and automatically proceed to next screen TIP During calibration steps Navigation unit must be maintained in steady position or calibration will not be accepted A red hand will flash on screen to indicate that unit is not steady Level must be green b...

Страница 4: ... slot until it reaches limit of its travel Use curved malleolar probe to extend range for extremely long or short tibias Assemble Femoral Jig cont Once assembled ensure microblock is in neutral position by adjusting varus valgus and flexion extension screws with ball driver Press center button when completed TIP Plate and bracket of microblock should be approximately parallel to each other when vi...

Страница 5: ...teel headed pins provided in instrument tray should be used Do not impact or hammer system components TIP Verify that there is approximately 10 mm of clearance between femoral cutting block and anterior condyles Input A P Offset Read anterior posterior offset position of center pin on microblock slider scale Enter offset value into navigation unit by pressing right button until correct number is d...

Страница 6: ...esults it is important that hip is kept stationary during registration Knee must be returned to start position within 2 cm and 5 rotation TIP Following maneuver completion during hip point calculation navigation unit screen will provide user with feedback on speed of maneuver in medial lateral M L and anterior posterior A P planes Green bars displayed for a given plane indicate that speed of the m...

Страница 7: ...istal guide Ensure that distal guide paddles remain flush on highest point of condyle being referenced TIP When pinning the cutting block take care to avoid applying excessive force that could alter intended varus valgus and flexion extension angles Topreventpotentialinterference ofoblique pin with microblock pins donotinsertobliquepinuntilmicroblockhasbeenremoved Useangelwingstylustoverifyresecti...

Страница 8: ...for pinning KneeAlign 2 instrumentation TIP If jig appears in extension relative to tibia remove shin spacer This may be the case for very obese legs Secure on Tibia a Pull malleolar probe to maximum anterior position in order to avoid interference during placement of jig b Place tibial jig on anterior tibia aligning etched line on fixation arm of jig with medial third of tibial tubercle c Positio...

Страница 9: ...ith side levers TIP Malleolar probe may be adjusted to assist in setting posterior slope angle Do not use malleolar probe to set posterior slope angle if posterior slope lever is locked After locking levers do not move jig relative to the tibia Pushing or pulling locked bars of the jig may introduce errors in navigation accuracy KneeAlign 2 System does not display measurement values when oriented ...

Страница 10: ...irm that posterior slope and varus valgus angles still match desired values Use angel wing stylus to confirm resection level and perform a visual confirmation of alignment TIP While setting resection depth stylus end should not be pressed into tibial plateau TIP Resection depth measurement should be set according to implant manufacturer s recommendations TIP If additional support is required place...

Страница 11: ...ess center button to repeat maneuver at higher speed sufficient to obtain green color bars for both A P and M L speeds Sensor signal is lost Remove and reattach sensor battery to re establish connection Hip point registration maneuver not finished prior to end of navigation unit beeping stream Press center button to repeat maneuver finishing maneuver and returning knee to starting position prior t...

Страница 12: ...ock Assembly 402045 Malleolar Probe Curved 401573 Malleolar Probe Straight 401572 Microblock 402042 Midline Probe Assembly 401571 Pin Driver Tri Flat 402067 Reference Sensor 2 133632 Resection Stylus Adjustable Captured 401587 Shin Spacer 401548 Threaded Pin Headed 46 mm 2 Pack 402395 Threaded Pin Headless 65 mm 2 Pack 402394 Tibial Cutting Block Left 401579 Tibial Cutting Block Right 401578 Curve...

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