OrthAlign KneeAlign 2 System Technique Manual Download Page 8

13

KneeAlign

®

 2 System

 Surgical Technique Manual

KneeAlign

®

 2 System

 Surgical Technique Manual

12

tIBIA

tIBIA

Attach Sensors

  • 

 

Remove navigation unit and sensor from 

mounting bracket and attach to tibial jig.

  • 

Press center button when completed.

TIP:  

 Attach sensor so that it is on lateral side of tibial jig 

(opposite fixation arm) during procedure.

Secure on tibia 

(cont.)

   

Midline probe should not be impacted into tibial plateau.

   

During pinning, ensure that midline probe is not pulling 

away from main tibial jig body. If it has, push probe down  

to reseat.

   

After pinning, fixation arm should be inspected to verify it 

has not pulled away from main tibial jig body and that it 

is seated fully within notch in jig body. If fixation arm has 

disengaged from jig body, push jig towards tibia to fully  

 reseat fixation arm in jig body.

TIP:   

Hardened, stainless steel pins provided in instrument 

tray should be used 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

   Position tip of midline probe just posterior to insertion 

of Anterior Cruciate Ligament (ACL).

d

   Secure fixation arm to tibia with at least two headed 

pins provided in instrument tray.

e

   Secure mid-tibia v-rest of tibial jig with calf strap.

 • 

Press center button when completed.

match probe Offsets

 •   

Confirm tip of midline probe is placed just posterior  

to insertion of ACL.

 •   

Read number on midline probe where arrow indicates.

 •   

Release PS and V/V levers to allow jig to move freely.

 •   

Set matching number on malleolar probe by pushing  

button on ankle tube and sliding malleolar probe to  

desired position.

 •   

Press center button when completed.

Step

Step

Step

Step

1

2

2

3

a

d

c

e

e

b

Release 

Levers

Release 

Levers

Summary of Contents for KneeAlign 2 System

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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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