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DePuy Synthes

LISS DF

Technique Guide

LISS DF.

The less invasive stabilization

system for distal femur fractures.

Less invasive procedure

− A radiolucent handle facilitates the

insertion of the plate as well as accu-
rate and hassle-free percutaneous
placement of the screws.

− Additional instrumentation facilitate

indirect reduction.

Anatomically precontoured low
profile plates

– Intended to reduce soft tissue

problems

– No need for plate contouring

Note:

Excessive and repetitive bending is not

recommended as it may weaken the plate.

Angular stability

– Prevents screw loosening as well

as primary and secondary loss
of reduction

– Allows early functional mobilization
– As an internal fixator the plate

preserves bone vascularization

– Offers improved purchase in osteo-

porotic bone

Wide variety of screws

– Self-tapping or self-drilling locking

screws

– Periprosthetic locking screws with

blunt tip for periprosthetic fractures

– Cortex screws
– Available in stainless steel and

titanium

Wide variety of anatomically
precontoured plates

– LCP DF and PLT plates
– Available in stainless steel and

titanium alloy (TAN)

– Left and right versions
– LCP DF plates in eight lengths with

5 to 19 holes in the shaft

– Long LCP DF plates (15 to 19 holes)

available in sterile only

Содержание LISS DF

Страница 1: ...S DF The less invasive stabilization system for distal femur fractures Technique Guide This publication is not intended for distribution in the USA Instruments and implants approved by the AO Foundati...

Страница 2: ......

Страница 3: ...emoval 33 Tips 35 Instruments for Minimally Invasive Surgery 36 Implants 37 Instruments 39 Sets 42 Image intensifier control Warning This description is not sufficient for immediate application of the...

Страница 4: ...he plate Angular stability Prevents screw loosening as well as primary and secondary loss of reduction Allows early functional mobilization As an internal fixator the plate preserves bone vascularizat...

Страница 5: ...DePuy Synthes 3 LISS instrumentation for Stardrive and Hex drive The torque limiting screwdriver the screwdriver shaft and the cleaning instrument are available for screws with Stardrive and Hex drive...

Страница 6: ...o porotic bone and multifragment fractures where traditional screw purchase is compromised Preservation of blood supply The LISS approach with its proven success preserves the blood supply through a m...

Страница 7: ...5 Indications LCP DF is indicated for the stabilization of fractures of the distal femur These include Distal shaft fractures Supracondylar fractures Intra articular fractures Periprosthetic fracture...

Страница 8: ...6 DePuy Synthes LISS DF Technique Guide Case 1 Male 20 years old poly trauma fracture 33 C3 Clinical Cases Preoperative Follow up after 6 weeks Follow up after 3 months Follow up after 5 months...

Страница 9: ...DePuy Synthes 7 Case 2 Male 76 years old isolated fracture 33 B2 Preoperative Postoperative Follow up after 4 weeks...

Страница 10: ...3 4 5 6 7 8 9 10 11 12 13 D B A E C G F Titanium St Steel Holes Length mm 422 251 222 251 5 156 422 253 222 253 7 196 422 255 222 255 9 236 422 257 222 257 11 276 422 259 222 259 13 316 04 124 031S 0...

Страница 11: ...re the width of the x ray calibrator XRC on the radiograph 4 Measure the maximum condyle width MCW on the radiograph 5 Determine the real condyle width RCW 6 Determine the screw lengths for the screw...

Страница 12: ...um condyle width on the radiograph MCW amounts to 91 mm Preoperative Planning RCW 50 55 91 83 mm The real condyle width RCW is therefore 83 mm The screw lengths are therefore Screw hole Screw length m...

Страница 13: ...io Case System 68 122 052 Modular Insert for Modular Screw Rack for Screws 6 5 mm size 1 3 without Contents Vario Case System 68 122 054 Modular Screw Rack with Drawer Measuring Block and Lid length 2...

Страница 14: ...e table to allow flexion of the knee during surgery Avoid too strong a traction and a fully extended knee as the forces of the gastrocnemius muscle would draw the distal fragment into recurvatum This...

Страница 15: ...rtion Guide 4 324 043 Fixation Bolt for LISS Insertion Guide 5 Note In certain cases e g distal fracture treated with a short plate it may be advantageous to do the surgery without using the LISS inse...

Страница 16: ...ation of the plate on the insertion guide during insertion introduce the stabilization bolt with the drill sleeve in hole B and thread it into the plate Note To prevent tissue ingrowth and facilitate...

Страница 17: ...distal fragment manipulation 5 Surgical approaches Extra articular fractures Perform a skin incision from Gerdy s tubercle about 80 mm in a proximal direction Split the iliotibial tract in the direct...

Страница 18: ...d the proximal end of the handle and the soft tissues impair the insertion of the plate it is possible to remove the radiolucent proximal part of the handle for insertion Plate Insertion Due to its we...

Страница 19: ...or by direct palpation Option Check plate position with a Kirschner Wire Instrument 292 699 Kirschner Wire 2 0 mm with threaded tip Use a Kirschner wire to check the correct position of the proximal...

Страница 20: ...ip For preliminary fixation of the plate use 2 0 mm Kirschner wires through the fixation and stabilization bolts Carefully check the position of the plate and the length of the reduced injured limb On...

Страница 21: ...dis tance between bone and plate should be kept as short as possible when inserting the wires as they are arranged in a convergent way After the insertion of the Kirschner wires the distance between p...

Страница 22: ...nserted in each main fragment length and rotation are defined Ante and recurvatum deformities can still be manipulated relatively well whereas there are only limited correction possibilities for varus...

Страница 23: ...th The length of the condylar screws can be deduced from the table on page 9 Use screws of 26 mm length in the diaphyseal region Options In case of very thick cortex pre drill by using the pulling dev...

Страница 24: ...laced through the centering sleeve Using image intensification insert the Kirschner wire to the desired depth leaving at least 5 mm between the tip of the Kirschner wire and the medial cortex Measure...

Страница 25: ...324 019 Stopper To insert the locking screw using a power tool fit a torque limiter to the power tool and insert the screwdriver shaft into the torque limiter Insert the locking screw into the plate h...

Страница 26: ...e power tool without high axial forces 3 to 5 kg To prevent heat necrosis it is important to cool the screw with saline solution during the drilling procedure through the drill sleeve If the screw is...

Страница 27: ...rill sleeve for LISS insertion guide 2 Predrill screw hole Instruments 324 007 Drill Sleeve 7 2 4 3 length 130 mm 310 423 Drill Bit 4 3 mm length 280 mm Remove the trocar and thread the drill sleeve 7...

Страница 28: ...the drilled depth directly from the laser mark on the drill bit Remove both drill bit and drill sleeve 7 2 4 3 Note Replacement stop rings can be ordered from the local Synthes representative Option T...

Страница 29: ...w according to the meas ured length To insert the locking screw using a power tool fit a torque limiter to the power tool and insert the screw driver shaft into the torque limiter Insert the locking s...

Страница 30: ...make it difficult to remove the implant For long screws and thick cortical bone ensure sufficient cooling during insertion Option B Insertion of Self Tapping Bicortical Locking Screws Option Manual in...

Страница 31: ...on of the plate on the diaphysis They are available in five lengths of 8 10 12 14 and 18 mm and allow the thread to engage in the near cortex Option C Insertion of Self Tapping Locking Screws for Peri...

Страница 32: ...intensifier control Drill as close to the prosthesis or intramedullary implant as possible to allow for the placement of the longest periprosthetic screw possible 3 Determine screw length Slide the s...

Страница 33: ...ording to the measured length Insert and lock the screw with the torque limiting screwdriver through the drill sleeve for LISS insertion guide Insert a stopper into the LISS insertion guide after scre...

Страница 34: ...crew Stop the power tool before the entire screw length of the pulling device is inserted Remove the power tool and the drill sleeve Screwing the knurled nut onto the pulling device allows the bone to...

Страница 35: ...nal length 158 mm or 324 250 Screwdriver Shaft Stardrive T25 length 158 mm 324 052 Torque limiting Screwdriver 3 5 hexagonal or 314 163 Torque limiting Screwdriver Stardrive T25 Remove the implant onl...

Страница 36: ...s manually with the torque limiting screwdriver In a second step completely remove all screws with a power tool If the screws cannot be removed with the screwdriver please consult the separate Synthes...

Страница 37: ...nd remove the drill sleeve After reconnecting the screwdriver to the power tool withdraw the screwdriver from the screw Standard 4 5 mm cortex screws can be used through the in sertion guide if requir...

Страница 38: ...Hohmann retractor holder allows better visualization of the inserted plate Serves as a guide for the inserted plate Ensures that the inserted plate is centered on the bone For additional information s...

Страница 39: ...222 256 422 256 11 276 right 222 257 422 257 11 276 left 222 258 422 258 13 316 right 222 259 422 259 13 316 left 02 124 030S 04 124 030S 15 356 right 02 124 031S 04 124 031S 15 356 left 02 124 034S...

Страница 40: ...g X13 390 X12 227 length 14 90 mm 0X 221 458 0X 221 508 for periprosthetic 0X 221 460 0X 221 510 fractures 0X 221 462 0X 221 512 self tapping X22 402 0X 221 514 length 8 18 mm X22 404 0X 221 518 X 2 s...

Страница 41: ...Fixation Bolt for LISS Insertion Guide length 151 mm 321 170 Pin Wrench 4 5 mm length 120 mm 324 022 Drill Sleeve for LISS Insertion Guide length 130 mm 324 044 Stabilization Bolt for LISS Insertion G...

Страница 42: ...ng Screws 5 0 mm 324 050 Screwdriver Shaft 3 5 hexagonal length 158 mm 324 250 Screwdriver Shaft Stardrive T25 length 158 mm 324 055 Centering Sleeve for Kirschner Wire length 161 mm for No 324 022 32...

Страница 43: ...034 Centering Sleeve for Kirschner Wire length 184 mm for No 324 048 292 699 Kirschner Wire 2 0 mm with threaded tip length 280 mm Stainless Steel 324 037 LISS Measuring Device for Kirschner Wires 2...

Страница 44: ...rdrive 68 120 040 Vario Case LCP DF 4 5 5 0 in Vario Case 01 120 332 Stainless steel 01 120 334 Titanium Alloy TAN 68 120 330 Insert Note on long plates The LCP DF plates with 15 to 19 holes are avail...

Страница 45: ...dular Insert for Modular Screw Rack for Screws 6 5 mm size 1 3 without Contents Vario Case System 68 122 054 Modular Screw Rack with Drawer Measuring Block and Lid length 200 mm height 115 mm size 1 2...

Страница 46: ...14 Injury 2001 Int J Care Injured 32 S C Kobbe P Hockertz TJ Reilmann H 2006 Periprothetische Frakturen Periprosthetic Fractures OP Journal 22 22 26 Schandelmaier P et al 1999 LISS Osteosynthese von d...

Страница 47: ......

Страница 48: ...965 66 00 www depuysynthes com 0123 This publication is not intended for distribution in the USA All surgical techniques are available as PDF files at www synthes com lit DePuy Synthes Trauma a divis...

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