TFN Set Screw
Product Information & Technique
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Index
– Key Features
– Indications
– Implants & Instrumentation
– Preparing for a Case
– Technique
– Care & Maintenance
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Key Features
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Key Features
Features:
– Set Screw configuration allows for intraoperative
choice to either lock or allow sliding of the blade or
screw
– Serrated surface on Set Screw is designed to
prevent blade or screw sliding
– Set Screw controls blade or screw rotation and
limits amount of sliding (when sliding is permitted)
– Set Screw is keyed to the nail for ease of
assembly
– Instruments and Set Screw for use with existing
TFN nails, blades and screws
– Instruments ensure proper tightening torque for a
secure construct
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Indications
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Indications
As part of TFN, the Set Screw is indicated for:
– Stable and unstable pertrochanteric fractures
– Intertrochanteric fractures
– Basal neck fractures
– And combinations thereof
The long TFN is additionally indicated for:
– Subtrochanteric fractures
– Pertrochanteric fractures associated with shaft
fractures
– Pathologic fractures of osteoporotic bone
(including prophylactic use) in both trochanteric
and diaphyseal regions
– Long subtrochanteric fractures
– Proximal or distal nonunions
– Malunions and revisions
TFN Set Screw / In-Service / June 2012 / DJ9056B
Short
Long
(170 mm & 235 mm) (300 mm - 460 mm)
6
Implants & Instrumentation
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Featured Implants
Implants
Set Screws for Titanium Trochanteric Fixation Nail, sterile
04.032.000S
125˚
04.032.001S
130˚
04.032.002S
135˚
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Instrumentation
New Instruments for Set Screw Insertion
03.010.477
5.0 mm Hexagonal Screwdriver Shaft,
with 6 mm Hexagonal Coupling
03.231.013
6 Nm Torque Limiting Blue T-Handle,
with 6 mm Hexagonal coupling
Also Available
03.231.018
6 Nm Torque Limiting Blue-Handle,
with 6 mm Hexagonal coupling
690.485
Label Sheet for TFN
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Preparing for a Case
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Preparing for a Case: Graphic Case
TFN Insertion Set (105.641)
TFN Locking Set
(105.362 / 105.643)
TFN Auxilary Instrument Set (105.646)
TFN Set Screw / In-Service / June 2012 / DJ9056B
Sterile Implants
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Technique
- This presentation shows the entire technique for insertion of TFN with a TFN Screw.
- The optional steps for inserting a Set Screw are included.
- The Set Screw may be used with a blade, if desired.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Preoperative Implant Selection
–
Use the AO preoperative planner to determine
nail length, nail diameter and neck angle
–
Check magnification on the preoperative planner
(0% or 15%). Determine typical magnification at
institution and adjust measurements accordingly.
–
Consider canal diameter, fracture pattern, patient
anatomy and postoperative protocol.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Open proximal femur
1.
2.
Position Patient
–
Lateral decubitus or supine
–
Abduct upper part of body approximately
10-15˚ to contralateral side (or adduct
affected leg by 10-15˚)
–
Reduce the fracture
Determine femoral neck angle
–
Use a 3.2 mm guide wire in one of the
three oblique slots on radiographic ruler
–
Position ruler and take an AP image
–
Select the angle
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Open proximal femur (Cont.)
3.
4.
Determine nail length (long nails)
–
Take AP of proximal femur and mark skin
at proximal end of the ruler
–
Move image intensifier to distal end of
femur & replace ruler at skin mark
–
Take AP of distal femur
–
Read nail length, selecting measurement
that places distal end of nail at, or just
proximal to, the physeal scar, or chosen
insertion depth
Determine nail diameter
–
Take AP at level of isthmus
–
Measurement is tab that fills canal
Note: Ruler is not at level of femur; this
effects accuracy of measurement
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Open proximal femur (cont.)
5. Identify nail entry point
–
Lateral View – In line with medullary
canal
–
AP View – Slightly lateral to tip of
greater trochanter, in the curved
extension of the medullary cavity
–
Make incision and dissect to bone
–
Insert 22.0 mm / 17.0 mm protection
sleeve, the 17.0 mm / 3.2 mm wire guide,
and the 3.2 mm trocar assembly down to
bone. Remove trocar.
–
Lateral angle of nail is 6˚; therefore, insert
guide wire at 6˚ angle lateral to shaft of
femur, and intersect the centerline of the
canal just distal to lesser trochanter.
TFN Set Screw / In-Service / June 2012 / DJ9056B
x
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Technique
Open proximal femur (cont.)
–
Insert guide wire through protection sleeve
and wire guide
–
Confirm guide wire placement in both AP
and lateral planes
–
Insert guide wire to depth of approximately
15 cm.
–
Remove wire guide
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Open proximal femur (cont.)
6.
Open Canal
–
Drill 17.0 mm drill bit to stop
–
Note: Do not plunge into fracture site. If
going through fracture, remove bone on
medial fragment to create path for nail.
–
Remove drill bit and dispose of guide
wire
–
Cannulated Awl may also be used to
open canal or expand opening created
by drill bit
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Open proximal femur (cont.)
7.
Reaming Guidelines (optional)
–
Using image intensification, ensure fracture
reduction has been maintained.
–
Insert 2.5 mm reaming rod into medullary canal to
desired insertion depth
–
Ream in 0.5 mm increments; advancing reamer with
steady, moderate pressure. Partially retract reamer
often to clear debris from canal
–
Ream to diameter at least 1.0 mm greater than the
nail diameter
–
Remove the reaming assembly, leaving the reaming
rod in place
–
Note: the nail can be passed over the 3.0 mm
reaming rod with straight ball tip, if used.
–
Nail length may be determined using the reaming
rod measuring device and a 950 mm reaming rod or
guide rod.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique – Set Screw
Optional Technique: Assemble Set Screw
Important: The TFN Set Screw should only be
used for fixation in fractures where
sliding is not desired.
Tang
- Select the set screw that coordinates with the
angle of the nail (ex. 130˚ set screw for a 130˚
nail)
- Using the 5.0 mm hex screwdriver assembly,
remove the two piece locking mechanism from
the nail.
Etch
Figure 1
- Note: The set screw is keyed so it can only be
inserted into the nail in one direction.
- Starting with the tang positioned toward the nail’s
etch (Figure 1), insert the set screw until the
yellow color band sits just below the proximal end
of the nail (Figure 2).
Figure 2
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Insert Nail
1. Assemble insertion instruments
–
Orient insertion handle laterally and match the
geometry of the handle to the nail.
–
Note: For long nails, the bow of the nail must align
with anterior bow of femur. Also confirm left or right
nail accordingly.
–
Pass cannulated connecting screw through the
insertion handle into the nail. Secure using the ball
hex screwdriver.
–
Note: Ensure connecting screw is tight to avoid
misalignment when inserting the screw through the
aiming arm. Do not attach the aiming arm to the
handle until the nail is fully inserted.
–
Verify locking mechanism for screw is not engaged
by passing the 5.0 mm hex screwdriver through the
cannulated connecting screw and turning
counterclockwise until it stops.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Insert Nail
2. Insert Nail: Short Nail
–
Orient insertion handle laterally, taking
into consideration the anteversion of the
femoral head and neck.
–
Manually insert nail
–
Under image intensification, verify fracture
reduction and insert nail as far as possible
by hand.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Insert Nail
2. Insert Nail: Long Nail
–
Orient insertion handle anteriorly until
nail reaches insthmus.
–
As nail is advanced, rotate handle so it
is positioned laterally for final seating.
–
This will allow the bow of the long nails
to aid nail passage through the 6˚
laterally angled entry point.
–
Light hammer blows may be used.
When using a hammer, monitor the
tip of the nail using image
intensification.
–
Verify that there is no evidence of
impingement distally.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Insert Nail (cont.)
Using hammer
–
Slide driving cap into grooves on the
insertion handle and secure in place using
the 11 mm ratchet wrench or spanner
wrench.
–
Strike the driving cap with a hammer.
–
Alternatively, thread the slide hammer and
hammer guide onto the driving cap and
hammer.
–
Use light blows to seat the nail.
–
Remove the driving cap.
–
Important: Confirm nail is tightly connected
to the insertion handle, especially after
hammering.
–
If reaming rod was used, remove it once nail
crosses fracture site.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
1. Verify nail insertion depth and anteversion
–
Ensure nail is tightly connected to
insertion handle.
–
Securely attach appropriate aiming arm to
the insertion handle.
–
Nail insertion depth can be confirmed by
inserting a 3.2 mm guide wire through the
aiming arm.
–
To ensure correct anteversion of the nail,
an additional guide wire can be inserted
ventral to the femoral neck and into the
femoral head.
–
Take a lateral image of the proximal
femur to verify nail rotation and ensure
screw will be aimed toward the center of
the femoral head.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
2. Insert blade guide sleeve
–
Thread buttress/compression nut onto blade
guide sleeve.
–
Tip: When assembling buttress/compression
nut, locate it approximately in the middle of
the threaded portion of the blade guide
sleeve for insertion into the aiming arm.
–
Place yellow guide sleeve, 11.0 mm/ 3.2 mm
wire guide and 3.2 mm trocar assembly
through the aiming arm and to the skin.
–
Make an incision to accommodate path of
sleeve assembly.
–
Ensure incision and dissection of fascia are
in line with path of blade guide sleeve.
–
Pass sleeve assembly to bone. The
buttress/compression nut will snap into the
aiming arm.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
2. Insert blade guide sleeve (cont.)
–
Turn buttress/compression nut
counterclockwise to advance the blade
guide sleeve to the bone.
–
The buttress/compression nut is locked
into the aiming arm, ensuring that the
blade guide sleeve will remain in position
on the lateral cortex throughout the
remainder of the procedure for screw
insertion.
–
Take AP image to confirm blade guide
sleeve is on the lateral cortex.
–
Reconfirm fracture reduction using image
intensification.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
3. Insert Guide Wire for Screw: Optional
technique: Use Guide Wire Aiming Device
–
Attach Guide Wire Aiming Device to anterior
side of aiming arm (where Miss-A-Nail jig is
normally attached).
–
Note: Offset block can be used to add 10 cm of
soft tissue clearance
–
Position C-arm for AP image. Rotate C-Arm
until any two orientation lines are symmetric to
the blade guide sleeve.
–
The midline (line between the two orientation
lines) represents the guide wire trajectory.
–
Note: If the nail must be repositioned, retract
blade guide sleeve before making the
adjustments.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
3. Insert guide wire for screw
–
Remove 3.2 mm trocar and pass a new 3.2 mm
guide wire through the drill sleeve to the bone.
–
Advance the guide wire under power, into the
femoral head, stopping approximately 5 mm
from subchondral bone.
–
The guide wire should be centered in the
femoral head and neck in both the AP and
lateral planes. The tip of the guide wire is
positioned at the intended screw tip position.
–
Confirm guide wire placement in both planes.
–
Note: If the nail must be repositioned, retract
blade guide sleeve before making the
adjustments.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
3. Insert Guide Wire for Screw: Optional
technique: Use Miss-A-Nail
–
Attach the Miss-A-Nail jig to the aiming arm
either anterior or posterior to the nail.
–
Set the thumbscrews to desired spread
position and tighten with 11 mm ratchet
wrench.
–
Pass the 5.6 mm/3.2 mm drill guide through
the Miss-A-Nail jig.
–
Make stab incision and pass sleeve to bone.
–
Advance 3.2 mm guide wire into femoral
head and monitor with image intensifier.
–
Repeat to place a second wire.
–
Wires will converge toward the tip of the
screw, in the lateral view, but will not touch
the screw.
–
Remove once screw is inserted.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
4. Measure for length of 11.0 mm screw
–
Read screw length (to the tip of the guide
wire) directly from the measuring device.
–
Note: If compression is desired, use a
shorter lag screw to avoid protruding too
far out of the lateral cortex.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
5. Drill for 11.0 mm screw
–
Remove wire guide
–
Open lateral cortex by drilling with 11.0 mm
tapered drill bit to the stop.
–
Note: If guide wire has deflected, it may be
removed. If guide wire falls out or comes out
when drill bit is removed, it does not need to
be replaced. Ensure orientation of insertion
handle and aiming arm is not altered.
–
Pass drill stop over the back end of the
6.0 mm/10.0 mm stepped drill bit and adjust
the setting to the measured screw length.
–
Drill to the stop.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
6. Tap/Ream (Optional)
–
Tap/Reamer may be used to prepare
pathway for the TFN Screw.
–
Important: Only use in dense bone.
–
Pass through the nail and advance
manually by turning clockwise until the
end of reamer reaches desired screw
placement.
–
Important: Monitoring insertion via the
following methods is recommended:
–
–
Use fluoroscopy
–
Monitor graduation on the instrument shaft in
relation to blade guide sleeve
Remove by turning counterclockwise.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
7. Assemble 11.0 mm screw
–
Thread compression nut onto
inserter/extractor.
–
Insert helical blade coupling screw into
inserter/extractor.
–
Align arrows on the tabs of the
inserter/extractor with flats on the back end
of the screw.
–
Thread coupling screw into screw and
tighten.
mark
8. Insert 11.0 mm screw
–
Pass through the nail and advance by
turning clockwise until mark on inserter
meets flange surface of blade guide sleeve.
–
The tip of the screw is now at the tip of the
guide wire.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
9. Align inserter handle
–
Align handle so it is in the same plane as
the femoral shaft (parallel to the femoral
shaft axis when viewed laterally).
–
Note: The handle may be off axis by as
much as 10˚. It may not be off axis
counterclockwise, as this will prevent the
locking mechanism from fully engaging the
screw.
–
Note: Turn the handle 180˚ to advance the
screw 1.75 mm (or 360˚ to advance 3.5
mm)
–
Note: When aligning the handle always
turn clockwise, further engaging the screw
in the bone (avoiding any gaps between
screw and bone)
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking
10. Engage locking mechanism (If using set screw, proceed to slide 38)
–
Engage locking mechanism to control screw rotation (screw can still
slide).
–
Turn the 5.0 mm hexagonal screwdriver (or the 5.0 mm hexagonal
shaft in conjunction with ratchet wrench) clockwise to the stop.
–
Note: If the locking mechanism is not advanced, the use of an end
cap is not possible
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Proximal Locking (cont.)
Optional technique:
interfragmentary compression
–
Advance the compression nut until it abuts
the blade guide sleeve.
–
At this point interfragmentary compression
can be obtained by turning either the
buttress/compression nut or the
compression nut clockwise by hand or with
assistance of the 4.5 mm pin wrench.
–
Remove the coupling screw from the screw
inserter.
–
Remove the blade guide sleeve from the
aiming arm by depressing the button on the
aiming arm and pulling.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique - Set Screw
Optional Technique: Engage Set Screw
– After insertion of the head element and satisfactory
reduction has been achieved, the set screw can be
engaged.
– Note: If interfragmentary compression or sliding is
desired, skip to the optional technique on the
following slides.
– Insert screwdriver assembly and turn clockwise.
After one click, the optimal torque is reached.
– Note: The torque limiting handle ensures that the
correct torque is achieved, thus ensuring that
sliding is prevented.
– Check position with C-arm
– Proceed with standard TFN Technique, Distal
Locking
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique - Set Screw
Optional Technique:
Interfragmentary Compression
– Note: The set screw must be engaged to prevent
rotation, but not fully locked. This allows the blade or
screw to slide during compression, but prevents rotation.
– Insert the set screw until it bottoms out (but do not click
the torque limiter). Turn the driver counterclockwise a ¼
turn.
– Advance the compression nut until it abuts the blade
guide sleeve. At this point, interfragmentary
compression can be obtained by turning either the
buttress/compression nut (attached to the blade guide
sleeve) or the compression nut (attached to the screw
inserter/extractor) clockwise by hand or with the
assistance of the 4.5 mm pin wrench.
– To statically lock the blade or screw, reinsert the
screwdriver assembly and turn clockwise. After one click,
the optimal torque is reached.
– Remove coupling screw from insertion device.
– Remove the blade guide sleeve from the aiming arm by
depressing the button on the aiming arm and pulling out
the blade guide sleeve.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique - Set Screw
Optional Technique: Sliding with Set Screw
– Important: If sliding with the set screw is
permitted, an end cap must be used to prevent
the set screw from backing out (preventing the
blade or screw from rotating, backing out or
migrating). Refer to the “Insert End Cap” section
of the standard technique guide.
– To allow sliding of the blade or screw, insert the
set screw until it bottoms out (but do not click the
torque limiter). Turn the driver counterclockwise a
¼ turn. The blade or screw will be able to collapse
but the set screw will still prevent rotation.
– Proceed with standard TFN Technique, Distal
Locking, and Insert End Cap (see standard
technique guide).
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Distal Locking – Short Nails (170 mm and 235 mm)
1. Reconfirm reduction
2. Drill and measure for locking bolt/screw
–
Alternative technique: use locking bolt
measuring device
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Distal Locking – Short Nails
3. Insert locking bolt or screw
–
Insert 4.9 mm or 5.0 mm locking screw
using the hexagonal screwdriver.
–
Remove protection sleeve and aiming arm.
–
Note the insertion depth of the nail as
indicated by the rings on the insertion
handle for end cap selection.
–
Remove connecting screw and insertion
handle using the ball hexagonal
screwdriver or the cannulated shaft and
ratchet wrench.
–
Note: If using SureLock, the insertion
handle should remain attached to the nail.
TFN Set Screw / In-Service / June 2012 / DJ9056B
42
Technique
Distal Locking – Long Nails (300 mm and 460 mm)
1. Reconfirm reduction
–
Take AP and Lateral images
–
For static locking use superior hole
–
For dynamic locking, use inferior locking
hole
2. Align image
–
Obtain perfect circle in center of screen.
–
Important: Ensure nail is securely
connected to handle.
3. Determine Incision point
–
Place Scalpel blade or k-wire on the skin
over the center of the hole to mark the
incision point and make a stab incision.
TFN Set Screw / In-Service / June 2012 / DJ9056B
43
Technique
Distal Locking – Long Nails (300 mm and 460 mm)
4. Center drill bit in locking hole
–
Under image intensification, insert the tip of the
4.0 mm three-fluted drill bit for radiolucent drive
through the incision and place it onto the bone.
–
Keep the drill bit oblique to the x-ray beam until
the tip is centered in the locking hole.
5. Drill
–
Tilt the drive until the drill bit is in line with the
beam and appears centered in the outer ring. The
drill bit will nearly fill the locking hole image.
–
Hold the drill firmly in this position and drill through
both cortices.
TFN Set Screw / In-Service / June 2012 / DJ9056B
44
Technique
Distal Locking – Long Nails (300 mm and 460 mm)
6. Measure
–
Read locking bolt/screw length directly from
depth gauge
7. Insert locking bolt/screw
–
Insert 4.9 mm locking bolt or 5.0 mm locking
screw using the hexagonal screwdriver, holding
sleeve and holding sleeve locking device.
TFN Set Screw / In-Service / June 2012 / DJ9056B
45
Technique
Insert end cap
–
Note insertion depth of nail as indicated by the rings on
the insertion handle.
–
Remove the connecting screw and insertion handle
using the ball hexagonal screwdriver or the cannulated
shaft and ratchet wrench.
–
Use of an end cap is recommended if bony ingrowth
into the proximal end of the nail is of concern. Also for
reverse oblique intertrochanteric and high
subtrochanteric fractures, the nail should sit slightly
proud of the greater trochanter to provide an added
point of fixation. If the nail has been over inserted, it
should be extended by the use of an end cap.
–
Slide the end cap over the 3.2 mm guide wire into the
top of the nail.
–
Use the 11.0 mm guide wire to tighten the end cap.
–
The 5.0 mm flexible hex screwdriver, the 5.0 mm hex
screwdriver or the 5.0 mm hex shaft and ratchet
wrench may be used to insert the end cap without the
use of the guide wire.
TFN Set Screw / In-Service / June 2012 / DJ9056B
46
Technique
Implant removal
1. Disengage locking mechanism
–
Remove the end cap
–
Thread the nail extraction screw into the nail.
–
Use the 5.0 mm hex screwdriver to
disengage the locking mechanism.
–
Tip: Pass the screwdriver through the
extraction screw first, to assist with aligning
the screw with the top of the nail.
–
–
Conical
Extraction
Bolt
Important: Do not extract the nail at this
point.
Optional instruments
–
Extraction screw guide – Used to help center
the extraction screw in the top of the nail.
–
Conical extraction bolt – used instead of
extraction screw.
Extraction Screw Guide
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Technique
Implant Removal
2. Remove screw and locking bolts / screws
–
Align the tabs on the inserter/extractor
with the flats of the screw.
–
Insert the coupling screw and thread it into
the screw.
–
Extract the screw by turning
counterclockwise.
–
Remove all locking bolts/screws using the
3.5 mm hex screwdriver.
3. Extract nail
–
Thread the hammer guide and slide
hammer assembly onto the back end of
the nail extraction screw.
–
Hold onto the extraction screw and use
light hammer blows to extract the nail.
TFN Set Screw / In-Service / June 2012 / DJ9056B
48
Care & Maintenance
TFN Set Screw / In-Service / June 2012 / DJ9056B
49
Care & Maintenance
Intraoperative and postoperative cleaning of
instruments
–
Clean intraoperatively using cleaning stylet
–
Clean postoperatively using cleaning stylet and
cleaning brush
–
Ensure grooves in blade guide sleeve are free of
debris
–
Clean only with neutral pH detergents approved for
use on anodized aluminum
Note: For additional information, please refer to package insert.
For detailed cleaning and sterilization instructions, please refer to
http://www.synthes.com/sites/NA/MedicalCommunity/cleaning-sterilization/Pages/default.aspx or to the below listed
inserts, which will be included in the shipping container:
Processing Synthes Reusable Medical Devices, Instruments, InstrumentTrays and Graphic Cases: DJ1305
Processing Non-sterile Synthes Implants: DJ1304
TFN Set Screw / In-Service / June 2012 / DJ9056B
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Thank You.
TFN Set Screw / In-Service / June 2012 / DJ9056B
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