Inion Hexalon™ Bioabsorbable Interference Screw
15Pages

Biodegradable Interference Screw Surgical Technique Inion Hexalon

Product Overview Bio-advantage with Inion® Technology Inion Hexalon™ is the first coloured biodegradable Inion’s core technology is founded on the interference screw which allows clear biological and mechanical principles of bone visibility during arthroscopic cruciate ligament healing. The company’s expertise in biodegradable reconstruction. In addition to traditional single- polymers is based on several decades of bundle procedures, Inion Hexalon™ screws can experience with these materials and is exemplified also be used for the fixation of soft tissue tendon by the proprietary Inion®...

Product Overview Inion® Polymers for Optimal Implant Performance Excellent Visibility During Insertion L-lactide provides high strength and durability. Inion Hexalon™ is the first coloured biodegradable D,L-lactide and TMC provide the required ductility interference screw. The use of colour guarantees and degradation rate. These basic ingredients of first-class visibility both during insertion and in its the Inion® polymers have long, successful clinical final position. histories. The pigment, added in trace amounts, has been 2 The Inion Hexalon™ Biodegradable ACL/ used routinely in...

Reduced Risk of Screw Breakage Optimised Thread Design biodegradable interference screws has been Designed for both hamstring and BTB graft fixations a tendency to break during insertion. Inion Hexalon™ combines optimal screw design with optimal material composition to achieve Rounded thread design limits damage to the graft significantly reduced risk of screw breakage. 3 Inion Hexalon™ is designed so that the shape of the socket is highly resistant to torque forces. The area of red (below) quantifies the tendency of the screw driver to rotate inside the screw causing an increased risk of...

Introduction to the Double-Bundle Technique Introduction The double-bundle technique is an arthroscopic procedure where the damaged ligament glide7-10 and this has raised doubts as to whether is replaced with two bundles (grafts), the subsequent arthrosis can be prevented. In an posterolateral (double Gracilis graft) and the effort to address these issues, there has been anteromedial bundle (double Semitendinosus much interest in anatomic, double-bundle tendon graft), instead of the standard single 4 In 14-30% cases there is also a persistent pivot bundle graft typically used in the...

Surgical Technique of the Double-Bundle ACL Reconstruction1,18 Figure 1. Arthroscopic portals and skin incisions in the right knee: 1. Anterolateral portal 2. Standard anteromedial portal 3. Additional anteromedial portal 4. kin incision for the harvesting S of the hamstring grafts and for drilling of the tibial tunnels Surgical Set-Up Arthroscopic Portal Placement Place the patient supine on the operating table A complete diagnostic arthroscopy is performed with a pneumatic tourniquet around the proximal first to confirm the ACL tear and possible other thigh. A lateral post controls...

Surgical Technique of the Double-Bundle ACL Reconstruction1,18 Figure 2. All bone tunnels are drilled before graft preparation. Bone Tunnel and Graft Preparation In the double-bundle technique, the AM femoral tunnel is drilled first using the standard AM previously noted additional AM portal and a free- portal and a freehand technique without a guide hand technique without a guide. The anatomical (Figure 2). The AM femoral tunnel is placed femoral footprint of the PL bundle is identified as posterior as possible, without breaking the arthroscopically and marked with a 30° awl, as posterior...

Figure 3. After harvesting the semitendinosus and gracilis tendons, each graft is doubled and whip-stitched with sutures at both ends of the graft. After creating the femoral tunnels, a 3 cm Drilling the tibial tunnels is done with a tibial oblique skin incision (#4 in Figure 1) is made guide. First, the tibial tunnel for the AM bundle over the AM surface of the tibia for harvesting is drilled. An ACL tibial drill guide is placed on the semitendinosus and gracilis tendons, and the AM aspect of the ACL tibial footprint with for creation of the tibial tunnels and passage the angle set...

Surgical Technique of the Double-Bundle ACL Reconstruction1,18 Figure 4. The gracilis tendon graft is inserted first to form the PL bundle. Figure 5. The tunnel entrance should always be notched with the cannulated Inion Hexalon™ Notcher (or Inion Hexalon™ RapidNotcher or Starter) before screw insertion. Graft Passage and Fixation Grafts are inserted retrograde via the tibial tunnels into the femoral tunnels. The graft for PL bundle notched with the cannulated Inion Hexalon™ (doubled gracilis tendon autograft) is passed first Notcher (or with the Inion Hexalon™ (Figure 4). Flex the knee...

Figure 6. Fixation of the PL bundle is done by inserting Inion Hexalon™ screw Figure 7. After fixing the PL graft, the semitendinosus tendon graft is inserted to form the AM bundle. The graft is fixed with Inion Hexalon™ screws after notching. On the tibial side, the PL bundle is tensioned by Please note that to avoid difficulties with screw pulling with a hand and fixed first the knee in full insertion and the risk of screw breakage it is very extension, followed by the AM bundle at 30° of important to ensure that: knee flexion with tensioning by pulling with 1. The bone tunnel entrance is...

Post-operative Rehabilitation Advantages of the Double-Bundle ACL Reconstruction with 4 Inion Hexalon™ Screws Immediate full weight bearing and full range of motion is permitted. Crutches are used for 3 to 4 More anatomical reconstruction of the anteromedial and posterolateral bundles of the No rehabilitation brace is used. Closed-chain Increased rotational stability Maximizes graft stiffness with true joint line fixation exercises are started immediately post-operatively. 10 Cycling is permitted with an ergometer bicycle Inion Hexalon™ combines optimal screw at 4 weeks, running at 3...