4.5/6.7 mm Low Profile Screw System Surgical Technique. 4.5/6.7 mm Low Profile Screw System

Transcription

1 4.5/6.7 mm Low Profile Screw System Surgical Technique 4.5/6.7 mm Low Profile Screw System

2 This is a Foot Screw Not a Hip Screw Designed in conjunction with foot and ankle surgeons, the Arthrex Cannulated Low Profile 6.7 mm Screw is the ideal tool for hindfoot fixation. Larger diameter and longer length threads are designed to provide greater pull-out and compression than other screws designed for hip fractures. Lower profile heads decrease the need for removal in areas where minimal soft tissue and direct weight-bearing are considerations. Pull-out Strength Comparison* 18 mm thread length and 28 mm thread length Longer threads are ideal for the foot and ankle Deeper threads Using a 2.4 mm Guide Pin allows threads to be deeper than standard A0 Screw Larger Thread Height Maximizes purchase for 30% more pull-out than a standard screw Lower Profile Head 1 mm lower than a standard screw 2.4 mm Guide Pin Enabling accurate placement Self-Drilling/Self-Tapping Quick and easy insertion, reverse cutting flutes Newtons mm Hex Strong drive for confident placement Best material on the market Type II Anodized Titanium 0 Arthrex 6.7 mm Lag Screw 6.5 mm AO Screw *data on file Comparison between AO 6.5 mm Screw and the Arthrex 6.7 mm Screw 6.5 mm AO Screw 16 mm Arthrex 6.7 mm Lag Screw - 18 mm thread Arthrex 6.7 mm Lag Screw - 28 mm thread actual sizes 18 mm AO 6.5 mm 1.7 mm core-to-thread differential Arthrex 6.7 mm 2.3 mm core-to-thread differential Arthrex 6.7 mm Screw has a 1 mm lower profile than AO Screw AO Arthrex

3 1. Medializing Calcaneal Osteotomy (MCO) Technique, 6.7 mm LPS Screw 1 2 Cut the calcaneus 2 cm from the posterior edge. Shift medially 1 cm. Maintain the correction with two 2.4 mm Guide Pins at the desired location of the screws. If desired, use a parallel pin guide. Always drive the pin through the longer leg of the guide. 3 4 Countersink, if desired. Measure pin depth with the Depth Device (inset). 5 6 Fix with two 6.7 mm cannulated LPS Screws. Screws are self-drilling, but in very hard bone predrilling may be required. Screws may be inserted by hand or power, but final tightening should be done by hand. Repair is complete.

4 2. Subtalar Arthrodesis Technique, 6.7 mm LPS Screw 1 2 Prepare subtalar joint by thoroughly removing all cartilage. Roughen bony surfaces by drilling, fish scaling or other means. Pack the joint with graft material. Insert two 2.4 mm Guide Pins at the desired location of the screws. If desired, use parallel pin guide. Always drive pin through the longer leg of the guide. 3 4 Countersink, if desired. Measure the pin depth with the Depth Device. 5 6 Fix with two 6.7 mm cannulated LPS Screws. The screws are self-drilling, but in very hard bone predrilling may be required. Screws may be inserted by hand or power, but final tightening should be done by hand. Screws may be inserted in divergent directions, if desired.

5 Surgical Technique 3. Triple Arthrodesis Technique Options, 4.5 mm LPS Screw Guidewires must be placed diagonally prior to screw insertion. Final Fixation. Option: H-Plate fixation of Talonavicular and Calcaneocuboidal Joints Ankle Arthrodesis, 6.7 mm LPS Screw and the use of Biologics In consideration of the above procedures the use of Biologics could be employed to aid in promoting osseous regeneration across fusion site voids with JRF Stimublast. JRF StimuBlast is a demineralized bone matrix (DBM) that provides osteoinductive and osteoconductive properties The Reverse Phase Medium (RPM) carrier provides superior handling characteristics Material is flowable at room temperature and thickens to become more viscous at body temperature RPM allows the DBM graft to be moldable and packed into any defect size JRF StimuBlast will resist irrigation and can be used in a fluid environment without the fear of graft migration This is a ready-to-use, off-the-shelf product that requires no thawing or premixing preparation JRF StimuBlast is terminally sterilized using electron beam, which does not harm the DBM or its bioactivity

6 Ordering Information 4.5 mm Screw System Screws and Washer: Cannulated Lag Screws, 4.5 mm x mm (partially threaded) Low Profile Screws, 4.5 mm x mm (fully threaded) Solid Lag Screws, 5.5 mm x mm Washer, 10 mm 4.5 mm Instruments: Cannulated Depth Device, 3 /4.5 mm Driver, 3.5 mm Hex, Cannulated (Mini Hudson) Cannulated Drill Bit, 3 mm (Mini Hudson) Cannulated Drill Bit, 4.5 mm (Mini Hudson) Countersink (Mini Hudson) Fixed Handle Cannulated Countersink, 4.5 mm Drill Guide, 3/4.5 mm (Trim-It) Tap, cannulated, 4.5 mm (Mini Hudson) Guidewire,.062, 1.6 mm Guidewire,.062, 1.6 mm, threaded AR PT 80PT AR FT 80FT AR PT 65PT AR-8945W AR-8944DG AR-8967D AR C AR C AR-8945CS AR-8945CSF AR-4164G AR-8945TC AR-8941K AR-8941KT 6.7 mm Screw System Screws and Washer: Cannulated Lag Screws, 6.7 mm x mm 18 mm thread length AR Cannulated Lag Screws, 6.7 mm x mm 28 mm thread length AR mm Low Profile Screw System Tenodesis Module AR-8967S Washer, 13 mm AR-8967W 6.7 mm Instruments: Parallel Pin Guide, adjustable C-Ring Pin Guide Cannulated Depth Device, 6.7 mm Drill Guide, 4 mm/6.7 mm Drill Bit, 4 mm, cannulated Drill Bit, 6.7 mm, cannulated Cannulated Countersink, 4.5 mm/6.7 Fixed Handle Cannulated Countersink, 6.7 mm Cannulated Tap, 6.7 mm Driver, 3.5 mm Hex, cannulated Ratcheting Screwdriver Handle Tear Drop Handle Low Profile Screw System Instrumentation Case Guidewire,.094 Guidewire w/trocar Tip, nonthreaded, 12, qty. 6 Guidewire w/trocar Tip, threaded, 12, qty. 6 Guidewire w/trocar Tip, threaded, 8, qty. 6 AR-8967PG AR-8967CG AR-8967DG AR-8967G AR C AR C AR-8945CS AR-8967CSF AR-8967TC AR-8967D AR-1999 AR-2001 AR-8946C AR-8967K AR-8967K-12 AR-8967KT-12 AR-8967KT This description of technique is provided as an educational tool and clinical aid to assist properly licensed medical professionals in the usage of specific Arthrex products. As part of this professional usage, the medical professional must use their professional judgment in making any final determinations in product usage and technique. In doing so, the medical professional should rely on their own training and experience and should conduct a thorough review of pertinent medical literature and the product s directions for use. Developed in conjunction with Ned Amendola, M.D., University of Iowa, IA; Paul Shurnas, M.D., Columbia Orthopaedic Group, MO; Troy Watson, M.D., Desert Orthopaedic Center, NV. U.S. PATENT PENDING 2011, Arthrex Inc. All rights reserved. LT0432F