NEW PRODUCTS• UK manufacturers of veterinary

implants

• Designers and manufacturers of the EVOLOX® polyaxial locking system

• Over 3000 product lines available for immediate despatch

• Comprehensive instrument range

• Bespoke implant manufacture

• Volume based discounts available to all customers

• Over 15 years in the veterinary industry

www.n2-uk.com +44 (0)23 9323 3265

@n2ukcom

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EVODURANCE® Drill BitsOrthopaedic bone drills, can they be improved?The simple answer is YES. Please read on to find out more.

Many orthopaedic operations involve drilling before the insertion of screws into bone. It is known that a rise in temperature above 43°C around a drill hole will cause Thermal Bone Necrosis, with irreversible changes in the structure and physical properties of bone. The immediate effect on the physical structure and the later effect on the cellular components both prejudice the hold of the screw as necrotic bone is reabsorbed, reducing the stability and strength of the fixation. Also the presence of necrotic tissue may delay healing and be predisposed to infection.

So what can generate this unwanted heat?1. Blunt drill bits will generate higher temperatures and the increased force required for

penetration causes poor control of the drill, and uncontrolled bursting through the far cortex. As drill bit material must be stainless steel, most orthopaedic drills are made from the most common surgical category grade of 420 which has a maximum hardness of 53Rc so standard drills are prone to early wear and blunting. Evodurance® Drill Bits (EDB) uses material grade 440C with a hardness of 57Rc and are TiCN Coated (see below)

2. Blocked Flutes: The physical characteristics of bone vary considerably with its state. When drilled dry, it produces debris in small particles that are easily cleared by a drill bit and the optimal helix angle for the flute is a slow helix (less turns per revolution) which most standard orthopaedic drill bits have. However at the site of operation, the debris is wet and mixed with medullary fat and bio-fluids. In this state, bone debris is no longer in the form of small particles and the flutes of a slow helix drill will clog easily and generate excessive heat. Evodurance® Drill Bits (EDB) have a quick helix in the form of a parabolic flute. See fig 1

3. Standard drill points require more force to penetrate the bone because the contact surface area is larger, generating more friction, and the cutting edge does not run across the central section. A split point will generate less heat at the tip. Most standard orthopaedics drills do not have the split point. Evodurance® Drill Bits (EDB) have a Split Point. See fig 2

4. Tip angle is not as critical to heat generation However if the angles are too sharp, they can cause soft tissue trauma when bursting through the far cortex. Also a more pointed tip will blunt more quickly. Evodurance® Drill Bits (EDB) have a 100ᴼ point angle.

Why coat drill bits?Medical grade stainless steel has a co-efficient of friction of 0.8 and a hardness of 53Rc. This can be reduced to 0.45 and hardness increased to 87Rc by PVD coating with biocompatible TiCN resulting in further reduced friction generated heat and drastically improving tool life.At N2 UK Ltd we believe we are the first veterinary manufacturer to invest resources in the improvement of bone drills. Literature study suggests that the optimal bone drill geometry will be a 100°split point to reduce friction, and that a quick parabolic helix is needed to clear the bone debris efficiently. Such a drill bit would be more efficient, generate minimal friction and reduce the production of thermal energy. We are pleased to say that this style of drill is now available from our Evodurance® Drill Bit range and fully manufactured in UK.

Parabolic Flute Quick Helix

Slow Helix Standard drill point

Split drill point

Fig 1 Fig 2 Cutting Edge shown in Red

MADE IN THE UK

Evodurance® Drill Bits with AO Style Quick Release

Order Code Diameter Overall Length

Working Length

Flute Length RRP

EDB-QR-11-060 1.1 85 60 20 £40.00EDB-QR-11-080 1.1 105 80 25 £40.00EDB-QR-15-060 1.5 85 60 30 £40.00EDB-QR-15-080 1.5 105 80 30 £40.00EDB-QR-18-080 1.8 105 80 40 £40.00EDB-QR-18-110 1.8 135 110 40 £40.00EDB-QR-20-080 2.0 105 80 40 £40.00EDB-QR-20-110 2.0 135 110 40 £40.00EDB-QR-24-100 2.4 125 100 50 £40.00EDB-QR-25-100 2.5 125 100 50 £40.00EDB-QR-25-150 2.5 175 150 50 £40.00EDB-QR-27-100 2.7 125 100 50 £40.00EDB-QR-27-150 2.7 175 150 50 £40.00EDB-QR-28-150 2.8 175 150 50 £40.00EDB-QR-32-170 3.2 195 170 50 £40.00

Evodurance® Drill Bits with Straight ShankOrder Code Diameter Overall

LengthFlute

Length RRP

EDB-11-055 1.1 55 20 £30.00EDB-11-080 1.1 80 25 £30.00EDB-15-060 1.5 60 30 £30.00EDB-15-080 1.5 80 30 £30.00EDB-18-080 1.8 80 40 £30.00EDB-18-110 1.8 110 40 £30.00EDB-20-080 2.0 80 40 £30.00EDB-20-110 2.0 110 40 £30.00EDB-24-100 2.4 100 50 £30.00EDB-25-100 2.5 100 50 £30.00EDB-25-150 2.5 150 50 £30.00EDB-27-100 2.70 100 50 £30.00EDB-27-150 2.70 150 50 £30.00

ReferencesAndrianne Y, Wagenknecht M, Donkerwolcke M, Zurbuchen C, BurnyF. External fixation pin: an in vitro general investigation. Orthopedics 1987;10:1507-16.Ardan NL, James JM, Herrick JF. Ultrasonic energy and surgically produced defects in bone. J Bone Joint Surg [Am] 1957;39-A:394-402.Bonfield W, Li CH. The temperature dependence of the deformation of bone. J Biomechanics 1968;1:323-9.Fuchsberger A. Optimization of the spiral drill for use in medicine. Z Orthop1987;125:290-7.Matthews LS, Green CA, Goldstein SA. The thermal effects of skeletal fixation-pin insertion in bone. J Bone Joint Surg [Am] 1984;66-A: 1077-83.Matthews LS, Hirsch C. Temperatures measured in human cortical bone when drilling. J Bone Joint Surg [Am] 1972;54-A:297-308.Saha S, Pal S, Albright JA. Surgical drilling: design and performance of an improved drill. J Biomech Eng 1982;104:245-52.Sidak Z. Rectangular confidence regions for the means of multivariant normal distributions. J Am Stat Assoc 1967;62:626-33.

Designed and manufactured

in the UK

CODE DESCRIPTION RRPSDT-QR-T6 T6 Premium Screwdriver Tip for 2.0mm Torx Head Screws £100.00SDT-QR-T8 T8 Premium Screwdriver Tip for 2.4/2.7mm Torx Head Screws £100.00SDT-QR-T15 T15 Premium Screwdriver Tip for 3.5mm Torx Head Screws £100.00

2.0mm LockingThere is a need for 2.0mm locking screws and plates for very small patients so we have launched two cuttable plates that will prove to be a versatile addition to your inventory.

CODE DESCRIPTION RRPLPL-CUT-20-100-18 2.0mm Cuttable locking plate 18 Holes 100mm Long £100.00LPL-CUT-20-100-20 2.0mm Cuttable locking plate 20 Holes 100mm Long £100.00

Our range of 2.0mm locking screws are self-tapping with a T6 Torx drive

CODE DESCRIPTION RRPLOC-20-06-TD 2.0mm locking screw 6mm Long £11.71LOC-20-07-TD 2.0mm locking screw 7mm Long £11.87LOC-20-08-TD 2.0mm locking screw 8mm Long £12.03LOC-20-09-TD 2.0mm locking screw 9mm Long £12.19LOC-20-10-TD 2.0mm locking screw 10mm Long £12.36LOC-20-11-TD 2.0mm locking screw 11mm Long £12.53LOC-20-12-TD 2.0mm locking screw 12mm Long £12.68LOC-20-13-TD 2.0mm locking screw 13mm Long £12.79LOC-20-14-TD 2.0mm locking screw 14mm Long £13.01LOC-20-16-TD 2.0mm locking screw 16mm Long £13.32LOC-20-18-TD 2.0mm locking screw 18mm Long £13.65LOC-20-20-TD 2.0mm locking screw 20mm Long £13.98LOC-20-22-TD 2.0mm locking screw 22mm Long £14.30LOC-20-24-TD 2.0mm locking screw 24mm Long £14.62LOC-20-26-TD 2.0mm locking screw 26mm Long £15.05LOC-20-28-TD 2.0mm locking screw 28mm Long £15.27LOC-20-30-TD 2.0mm locking screw 30mm Long £15.59

MADE IN THE UK

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Premium Screwdrivers Screwdrivers are critical to how your plating kits work and can be the weak point in your system. A small amount of wear in the tip can result in damage to the screw heads, usually at the most inappropriate time mid procedure.N2 torx tips are not only designed to tight specifications on the tip tolerances they are also coated to make them harder and increases resistance to wear.

*coming soon our hex drive tips will also be coated for extra longevity.

Thread Diameter 2.0mmThread Form HCThread Pitch 0.6mmStar Torx Drive Socket T6Core Diameter 1.4mmHead Pitch 0.6mmDrill Bit For Threaded Hole 1.5mmDrill Bit For Gliding Hole 2.0mm

Locking Bone Screw 2.0mm (Self Tapping Star Torx Drive) T6

Head to suit 2.0mm locking plates

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2.4mm Evolox® Biological Healing PlatesThe 2.4mm Plates are specifically designed for economical use on Feline Long Bone fractures. They benefit from a rigid extruded construct with the flexibility of having Poly-axial Locking fixation or even 2.4mm Locking screws with 2mm shaft. They are low profile and pre contoured to aid closure.

CODE DESCRIPTION RRPEV-BHP-24-07-059 2.4mm Biological Healing Plate 7 Holes 59mm Long £45.00EV-BHP-24-08-084 2.4mm Biological Healing Plate 8 Holes 84mm Long £45.00

2.0/2.4mm Locking Screws2.0/2.4 locking screws have been introduced as another option to our range. These are a hybrid between the 2.0mm and 2.4mm screws. They have the heads of the larger screw but the threaded shaft of a 2.0mm.They can fit into any 2.4mm or 2.7mm N2 locking plate, both monoaxial and polyaxial. These screws are ideal for smaller bones or for small fragments. Our range of 2.0/2.4mm locking screws are self-tapping with a T8 Torx drive

CODE DESCRIPTION RRPLOC-2024-06-TD 2.0/2.4mm locking screw 6mm Long £11.71LOC-2024-07-TD 2.0/2.4mm locking screw 7mm Long £11.87LOC-2024-08-TD 2.0/2.4mm locking screw 8mm Long £12.03LOC-2024-09-TD 2.0/2.4mm locking screw 9mm Long £12.19LOC-2024-10-TD 2.0/2.4mm locking screw 10mm Long £12.36LOC-2024-11-TD 2.0/2.4mm locking screw 11mm Long £12.53LOC-2024-12-TD 2.0/2.4mm locking screw 12mm Long £12.68LOC-2024-14-TD 2.0/2.4mm locking screw 14mm Long £13.01LOC-2024-16-TD 2.0/2.4mm locking screw 16mm Long £13.32LOC-2024-18-TD 2.0/2.4mm locking screw 18mm Long £13.65LOC-2024-20-TD 2.0/2.4mm locking screw 20mm Long £13.98LOC-2024-22-TD 2.0/2.4mm locking screw 22mm Long £14.30LOC-2024-24-TD 2.0/2.4mm locking screw 24mm Long £14.62LOC-2024-26-TD 2.0/2.4mm locking screw 26mm Long £14.94LOC-2024-28-TD 2.0/2.4mm locking screw 28mm Long £15.27LOC-2024-30-TD 2.0/2.4mm locking screw 30mm Long £15.59

2.7/3.5mm Locking Screws2.7/3.5mm locking screws are also available. These have 3.5mm heads and fit any 3.5mm locking plate from our extensive range of monoaxial and polyaxial locking plates. However, these have a 2.7mm threaded shaft with a 2.5mm hex drive.

CODE DESCRIPTION RRPLOC-2735-10 2.7/3.5mm Locking screw 10mm Long £11.31LOC-2735-12 2.7/3.5mm Locking screw 12mm Long £11.63LOC-2735-14 2.7/3.5mm Locking screw 14mm Long £11.96LOC-2735-16 2.7/3.5mm Locking screw 16mm Long £12.27LOC-2735-18 2.7/3.5mm Locking screw 18mm Long £12.60LOC-2735-20 2.7/3.5mm Locking screw 20mm Long £12.93LOC-2735-22 2.7/3.5mm Locking screw 22mm Long £13.25LOC-2735-24 2.7/3.5mm Locking screw 24mm Long £13.57LOC-2735-26 2.7/3.5mm Locking screw 26mm Long £13.89LOC-2735-28 2.7/3.5mm Locking screw 28mm Long £14.22LOC-2735-30 2.7/3.5mm Locking screw 30mm Long £14.54

Thread Diameter 2.0mmThread Form HCThread Pitch 0.6mmStar Torx Drive Socket T8Core Diameter 1.4mmHead Pitch 0.6mmDrill Bit For Threaded Hole 1.5mmDrill Bit For Gliding Hole 2.0mm

Locking Bone Screw 2.0/2.4mm (Self Tapping Star Torx Drive) T8

Head to suit 2.4/2.7mm locking plates

Thread diameter 2.7mmThread form HCThread Pitch 0.8mmDrive 2.5mm hexCore 2.0mmHead pitch 0.8mmDrill bit 2.0 mm

Locking Bone Screw 2.7/3.5mm (Self Tapping Hex Drive)

Head to suit 3.5mm locking plates

EVOLOX® Gen-2 Hybrid T-PlatesWe have added a range of locking T plates as requested by veterinary surgeons. The larger plates (EV-HTP) contain our trademark polyaxial EVOLOX® system for added usefulness

CodeHead Locking

screw sizeShaft Locking

screw sizeShaft DCP screw size

Length RRP

EV-HTP-27-35-72 2.7 3.5 3.5 72 £75.00EV-HTP-27-35-95 2.7 3.5 3.5 95 £90.00EV-HTP-27-35-105 2.7 3.5 3.5 105 £95.00EV-HTP-27-35-85 2.7 3.5 3.5 85 £70.00EV-HTP-27-35-65 2.7 3.5 3.5 65 £60.00EV-HTP-24-24-71 2.4 2.4 2.4 71 £70.00EV-HTP-24-24-52 2.4 2.4 2.4 52 £60.00LPL-T-20-20-49 2.0 2.0 2.0 49 £60.00LPL-T-20-20-35 2.0 2.0 2.0 35 £50.00

EV-HTP-27-35-72

EV-HTP-27-35-95

EV-HTP-27-35-105

EV-HTP-27-35-85

EV-HTP-27-35-65 EV-HTP-24-24-71

EV-HTP-24-24-52

LPL-T-20-20-49

LPL-T-20-20-35

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MADE IN THE UK

Bespoke Special PlatesN2 prides itself on its innovation in the orthopaedic market and our ability to make ideas into reality. Many of the best ideas start with a veterinary surgeon working alongside our engineers to combine what is needed with what is possible to create new and interesting plates. Whether it’s simply moving a hole or increasing the length or a totally new idea we can help bring the implant to life either as a one off for a case or in small production runs if the need is there.

Our engineer directors will work directly with customers to create what is needed in the timeline suited to the surgeon. These ‘one offs’ should be significantly more than we charge but our passion is to improve the options available to surgeons and the market so costs are kept to a minimum.

For more information or if you have an idea please contact nick@n2-uk.com

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EVOLOX® YY PlatesOriginally designed for a chondrodystrophic bi-apical antebrachial deformity that had caused paw rotation in a Basset hound this plate was designed to stabilise both ends of the realigned area. The plate is useful for other procedures in particular the distal radius.

CODE DESCRIPTION RRPEV-YY-27-12 2.7mm EVOLOX® 12 Hole double ended Y plate £160.00EV-YY-27-13 2.7mm EVOLOX® 13 Hole double ended Y plate £160.00EV-YY-27-14 2.7mm EVOLOX® 14 Hole double ended Y plate £160.00

Circular Cuttable Locking PlatesA unique versatile plate to have available. Whether it is for acetabular work or maxillofacial work this range will be useful. They have been used in jaw fractures as well as around the orbit. This cuttable option offers flexibility to allow all your requirements to be met in one plate.

CODE DESCRIPTION RRPEV-RP-20-36-24 2.0mm Locking Maxillofacial Ring Plate

24 Hole 36mm Diameter£140.00

EV-RP-24-57-24 2.4mm EVOLOX® Maxillofacial Ring Plate 24 Hole 57mm Diameter

£150.00

EV-RP-27-82-24 2.7mm EVOLOX® Maxillofacial Ring Plate 24 Hole 82mm Diameter

£160.00

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EV-YY-27-12

EV-YY-27-13

EV-YY-27-14

EVOLOX® 2.4mm TPLO Version 2This completely re-engineered and reconfigured TPLO Plate incorporates a range of technical features designs for greater osteotomy stability and reduced healing times

New Head Features:• All Evolox® screw holes allowing enhanced freedom of screw orientation and optimal bone

purchase • Evolox® proximal screw hole configuration ensures joint space avoidance even where

contouring of the plate is necessary• New curved profile ensures head-screw holes overlie osteotomised tibial fragment allowing

more central screw placement in the thickest available bone

New Shaft features:• Angled proximal compression hole perpendicular to the osteotomy line ensures correct

compression of the central zone• Offset distal compression hole ensures compression of the proximal zone of the osteotomy• Single central Evolox® hole reducing implant costsOur Version One Evolox® 2.4mm TPLO Plate is still available and remains a premier choice for the closing wedge technique (using left as right and visa versa)

CODE DESCRIPTION RRPEV-TPLO-24L-V2 2.4mm EVOLOX® TPLO locking

plate Left hand Version 2£60.00

EV-TPLO-24R-V2 2.4mm EVOLOX® TPLO locking plate Right hand Version 2

£60.00

MADE IN THE UK

scale 1:1EVOLOX® 3.5mm TPLO SmallThe 3.5mm small plate is designed to fit small stocky dogs such as a Staffordshire Bull Terriers and fills the jump in size between 2.7mm plates and 3.5mm standard plates.

CODE DESCRIPTION RRPEV-TPLO-35-LS 3.5mm EVOLOX® TPLO Locking

– Small Left£65.00

EV-TPLO-35-RS 3.5mm EVOLOX® TPLO Locking – Small Right

£65.00

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