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DTL - 24 Pages

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Catalogue excerpts

Implants trauma Distal Anterolateral Tibia Locking Plate

 Open the catalogue to page 1

CAUTION: Federal Law (USA) restricts this device to sale by or on the order of a board certified physician. WARNING: If there is no sufficient bone healing, wrong or incomplete postoperative care, plate might break. All ITS plates are preformed anatomically as a matter of principle. If adjustment of the plate to the shape of the bone is required, this is possible by carefully bending gently in one direction once. Particular care is required when bending in the region of a plate hole, as deformation of the plate may lead to a failure of the locking mechanism. The plate must not be buckled or bent...

 Open the catalogue to page 2

1. Introduction P. 5 Preface P. 6 Screws P. 7 Properties P. 8 Indications & Contraindications P. 8 Time of operation 2. Surgical Technique P. 10 Pre-operative patient preparation P. 10 Access P. 11 Reduction P. 12 Placement of the screws P. 16 Postoperative treatment P. 16 Explantation 3. Information P. 17 Notes P. 19 Locking P. 19 Dotize® P. 20 Order list P. 22 Reconditioning Manual

 Open the catalogue to page 3

Preface The Distal Anterolateral Tibia Locking Plate is a proven osteosynthesis system for various distal tibia fractures. The special feature of this implant is the free choice of screw placement. The user is able to set any desired screw in any hole, either locking or non-locking screw (except oblong hole). The free choice of screw angulation (+/- 15°, see page 19) provides an advantage in fracture treatment, especially in the case of complex fractures.

 Open the catalogue to page 5

Cortical Screw, locking, D=3.5mm, SH Spiral Drill, D=2.7mm, L=100mm, AO Connector Screwdriver, WS 2.5, self-holding sleeve Spiral Drill, D=2.7mm, L=100mm, AO Connector Screwdriver, WS 2.5, self-holding sleeve Cancellous Screw, locking, D=4.2mm, SH Spiral Drill, D=2.5mm, L=180mm, AO Connector Screwdriver, WS 2.5, self-holding sleeve Guide Wire, Steel, D=1.6mm, L=150mm, TR, w. thread

 Open the catalogue to page 6

Properties Properties of the implant: • Plate material: Titanium • Material of screws: TiAl6V4 ELI • Easier removal of the implant after the fracture has healed • Improved fatigue strength of the implant • Reduced risk of cold welding • Reduced risk of inflammation and allergy • Multi-directional locking • Anatomically shaped • Torsion and contour of the plate shaft has been adapted to that of the distal tibia • 4 distal plate holes for fixation close to joint • Oblong hole for optimal positioning and alignment of the tibia length • Pointed proximal plate end for percutaneous insertion • Left/right...

 Open the catalogue to page 7

Indications, Contraindications & Time of operation Indications: • Extra- and intra-articular fractures of the distal tibia • Distal tibia fractures also in combination with diaphyseal fractures Existing infections in the fracture zone and operation area Common situations that do not allow osteosynthesis With advanced osteoporosis In cases of skin and soft tissue problems that prevent a tension-free skin closure Obesity Lack of patient compliance Time of operation: • Immediately after trauma or delayed

 Open the catalogue to page 8

Pre-operative patient preparation • General anaesthesia, local anaesthesia or combination can be used • The patient is in the supine position with the leg raised slightly on a pedestal • Application of a tourniquet Access Anterior approach: • Skin incision along the middle line of the upper ankle joint with the center over the joint • The incision should be made 1 to 2cm away from the fracture to avoid suture placement directly above the plate • Separation of the superficial and deep fascia giving due attention to the superficial peroneal nerve • The tendon of the tibialis anterior muscle is held...

 Open the catalogue to page 10

Reduction • Temporary fixation of the plate to the tibial shaft using guide wires • Anatomical reduction of the articular block and fracture segments to the plate (varus/valgus, ante-/retroversion) • Subsequent control under fluoroscopy Optionally, the plate can be stabilized using the ITS. Temporary Plate Holder (58164-150).

 Open the catalogue to page 11

Placement of the screws With the spiral drill, D=2.7mm, L=100mm, AO Connector (61273-100), drill through the drill guide, D=2.7/2.0mm (62202) into the oblong hole. Determine appropriate length using the depth gauge, solid small fragment screws (59022). Insert the D=3.5mm cortical screw (32351-XX) with the screwdriver, WS 2.5, self-holding sleeve (56252). Advice: For optimal alignment of the plate with tibia length, we recommend to first fill the oblong hole.

 Open the catalogue to page 12

Then, using the spiral drill, D=2.5mm, L=100mm, AO Connector (61253-100), drill through the drill guide, D=2.7/2.0mm (62202) into a distal plate hole. Determine appropriate length using the depth gauge, solid small fragment screws (59022). Insert the D=4.2mm locking cancellous screw (37422-XX-N) with the screwdriver, WS 2.5, self-holding sleeve (56252).

 Open the catalogue to page 13

Using the spiral drill, D=2.7mm, L=100mm, AO Connector (61273-100) drill through the drill guide, D=2.7/2.0mm (62202) into a shaft plate hole. Determine appropriate length using the depth gauge, solid small fragment screws (59022). Insert the D=3.5mm cortical screw (32351-XX) with the screwdriver, WS 2.5, self-holding sleeve (56252).

 Open the catalogue to page 14

The remaining plate holes are then filled, with either locking or non-locking screws. Subsequent control of plate position under fluoroscopy.

 Open the catalogue to page 15

Postoperative treatment • Keep leg raised for 2 to 5 days and take decongestant actions • Physical therapy immediately following surgery (no immobilization required) • Partial toe touch weight-bearing - at week 6-8 (depends on wound healing): 22-33 lbs • Full weight-bearing - after about 3 months (depends on consolidation of the joint) • When a locking screw connection has been used, it is necessary to be aware that the diagnosis of a non-union may be very delayed. Explantation If desired by the patient, the implant can be removed. Removal should be performed at the earliest 1 1/2 years later...

 Open the catalogue to page 16

Locking Locking works because of: • Screw material (TiAlV) is slightly harder than plate material (Titanium Grade 2) • Screw head forms thread into the plate (no cutting) ± 15° and Locking No pre threading No cold welding No debris You can re-set the screw up to 3 times Dotize® Chemical process - anodization in a strong alkaline solution* Type III anodization Dotize Type II anodization + Film becomes an interstitial part of the titanium - Implant surface remains sensitive to: Chipping Peeling Discoloration Type - III - No visible cosmetic effect Dotize® Type - II Ti-Oxid Anodization Type II leads...

 Open the catalogue to page 19

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