HCS
24Pages

Implants trauma Headless Compression Screw

ATTENTION: The ITS. Headless Compression Screw are not suitable for use in the spinal column. The indication range for cannulated screws may vary according to the bone quality and physique of the patient.

1. Introduction P. 5 Preface P. 6 Properties P. 7 Instruments P. 8 Indications & Contraindications P. 8 Time of operation 2. Surgical technique P. 10 D=2.0mm Headless Compression Screw P. 10 Temporary fixation with K-Wire P. 11 Optionally drilling P. 11 Optionally use of a cortical counter sink P. 12 Identification of screw length P. 12 Placement of the screw P. 13 Postoperative treatment P. 13 Explantation 3. Information P. 15 Dotize® P. 16 Order list P. 19 Notes P. 20 Reconditioning Manual

Preface The Headless Compression Screws of ITS. with different diameters and lengths covering a wide range of indications for fracture treatment in trauma surgery and orthopedics. The special head design minimizes soft tissue irritation and enables a minimal invasive method.

Properties Properties of the implant: • • • • • • Self-drilling & self-tapping Cannulated for minimal invasive treatment and guided insertion Minimization of soft tissue irritation due to self-tapping grooves at the threaded head Special head design for easier countersink of the screw Back-tapping flank for easier explantation Thread lead difference between head and shaft thread to optimize the fracture or osteotmy compression • Various diameters for a wide range of indications: 2.0, 2.5, 3.0, 3.5, 4.3, 7.5mm Screw material: TiAl6V4 ELI Easier removal of the implant after the fracture has...

Guide Wires: 35094-100-H Guide Wire D=0.9mm for HCS D=2.0, 2.5, 3.0, 3.5mm 35164-150-h Guide Wire D=1.6mm for HCS D=4.3mm 35204-228-H Guide Wire D=2.0mm for HCS D=7.5mm Torque-Shank T7x80 for HCS D=2.0, 2.5mm Torque-Shank T7x80, cannulated for HCS D=2.0, 2.5mm Torque-Shank T9x100 for HCS D=3.0, 3.5mm Torque-Shank T9x100, cannulated for HCS D=3.0, 3.5mm Hexagon-Shank WS 2.5mm, cannulated for HCS D=4.3mm Hexagon-Shank WS 5.0mm, cannulated for HCS D=7.5mm Cannulated Spiral Drill: Spiral Drill, Cannulated, D=1.5mm for HCS D=2.0mm Spiral Drill, Cannulated, D=1.75mm for HCS D=2.5mm Spiral Drill,...

Cortical Counter Sink: 63405 Cortical Counter Sink for HCS D=2.0mm 63406 Cortical Counter Sink for HCS D=2.5mm 63407 Cortical Counter Sink for HCS D=3.0mm 63408 Cortical Counter Sink for HCS D=3.5mm 63409 Cortical Counter Sink for HCS D=4.3mm 63410 Cortical Counter Sink for HCS D=7.5mm o Indications, Contraindications & Time of operation Indications: ♦ Fractures, corrective osteotomies, pseudoarthrosis, degenerative transformations of small bones Contraindications: ♦ With advanced osteoporosis ♦ Existing infections in the fracture zone and operation area ♦ Common situations that do not...

Surgical technique

D=2.0mm Headless Compression Screw Example of use of a D=2.0mm Headless Compression Screw on metacarpal bone II and metatarsal bone I. Temporary fixation with K-Wire After placing a stab incision, provisionally fix the fracture segments using guide wire, steel, D=0.9mm, L=100mm, TR (35094-100-H). Subsequent control under fluoroscopy. Attention: To avoid bending the guide wire insert it carefully.

Optionally drilling Predrilling is possible in strong cortical bone with a drill point equal to the core diameter of the screw for easier insertion of the cannulated screw. Place the spiral drill, cannulated, D=1.5/1.0mm, AO Connector (61152-100) over the guide wire and perform drilling under fluoroscopy. Attention: Do not drill further than the tip of the guide wire as this would impair the firm fixation of the guide wire (drill up to approx. 5mm before the end of the guide wire). Optional use of a cortical counter sink If the bone has a solid bone quality or is surrounded with less soft...

Identification of screw length Place the depth gauge for D=0.9mm guide wire (59029) over the guide wire and insert it through the soft tissue down to the bone. Then read off the required length measurement at the end of the calibrated guide wire. Placement of the screw Place the D=2.0mm Headless Compression screw (31207-XX) over the guide wire with the Torque-Shank, T7x80, cannulated, AO Connector, (54098-80) until the thread of the head. Then remove the guide wire an insert the screw completely with the Torque-Shank, T7x80, AO Connector (54097-80). Attention: In case of solid bone, it is...

Finally, confirm correct position under fluoroscopy. Postoperative treatment • • • • Physical therapy immediately following surgery (no immobilization required) Partial weight-bearing Full weight-bearing after week 10-16 Weight-bearing after radiographic verification of the healed bone ATTENTION: The postoperative treatment may vary depending on the patient‘s age, bone quality or type of fracture. Explantation • Removal is possible, if desired by the patient. This is facilitated by the fact that cold welding never occurs. • Implant removal is performed after radiographic verification, vice...

Dotize® Chemical process - anodization in a strong alkaline solution* Dotize Type II anodization • Layer thickness 2000-10 000nm + Film becomes an interstitial part of the titanium + Different colors - Implant surface remains sensitive to: Chipping Peeling Discoloration - No visible cosmetic effect Anodization Type II leads to following benefits* • • • • • • • • Oxygen and silicon absorbing conversion layer Decrease in protein adsorption Closing of micro pores and micro cracks Reduced risk of inflammation and allergy Hardened titanium surface Reduced tendency of cold welding of titanium...

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