Dex IOT Arthrex Questions and 100% Correct Solutions

(T/F) The fixed angle screw trajectory of the distal radius plate is designed to anatomically support the subchondral bone of the distal radius? - True Distal radius fractures are commonly caused by which maneuver? - FOOSH (fall on outstretched hand) (T/F) In order for the Volar Distal Radius Plate to sit correctly on the radius, if needs to be placed as distal as possible, but not distal to the Watershed line. - True (T/F) The torque limiting handle with the distal radius plates should be used for the distal 2.4mm screws to prevent over torquing or under torquing of these screws. - True Which distal radius plating option would be best for a highly comminuted fx? - spanning plate Which of the following is a benefit of Dorsal Radius Plating? - A. Reduce Intra-articular fragments under direct visualization B. Additional soft tissue structures to dissect to access the fx fragments C. Directly butress dorsal fragments A & C Which of the following is an aiming option for fixed angle placement when using a distal radius plate option? - A. PEEK aiming guide B. Short drill sleeves C. Threaded locking tower ALL of the above What is the degree of angle on the Variable Angle Guide included with the distal radius plates? - 20 degrees The following are options to help align the peek aiming guide onto the distal radius plate to reduce malalignment. - A. tighten the set screw as tight as possible B. gently snug the set screw with two finger tightness C. Place a K-wire through the distal alignment holes of the guide after tightening the set screw D. force alignment with a k-wire driver intra-op DON'T know - NOT C Under what circumstances should surgeons operate on a distal radius fx? - A. articular malalignment > 1mm B. Radial shortening > 10mm C. Closed fx with no displacement A & B The variable pitch of the Compression FT screws gain compression by having a large pitch on the leading end and smaller pitch on the trailing end creates compression as screw advances. - True True or False. There are several published peer-reviewed studies that show that under the best of conditions, even in the hands of skilled surgeons it is difficult for surgeons to gain an accurate reduction of the ankle syndesmosis using fluoroscopic imaging and clamps in the operating room. - True T/F: The ankle fracture seen in this x-ray is classified as a Danis-Weber type B. In this case the surgeon would need to be concerned about an unstable syndesmosis joint. - True Which type of ankle fracture(s) can the FibuLock® Fibular Nail be used to treat? - Weber A, B and C Which of the following terms is NOT used to describe the malposition of a fracture? Angulation Translation Shortening Comminution - Comminution Which property of the FibuLock® Fibular Nail System allows for the possibility of earlier return to weight bearing? - its a load sharing device Which of the following toe deformities includes hyperextension of the MTP joint, flexion of the PIP joint, and flexion of the DIP joint? - Claw toe Mallet Toe - Hammer Toe - When using the RetroFusion™ PIP joint arthrodesis implant screw, final compression of the joint is accomplished by turning the screwdriver: - clockwise Which of the following can cause a lesser toe deformity? Long toes Inappropriate shoe wear Repeated hyperextension of the MTP joint All of the above - All of the above When tying the sutures over the proximal phalanx in the CPR technique, what position should you hold the toe in for correct anatomical placement? - 20-30 degrees of plantarflexion True or False: The two sizes for the RetroFusion™ PIP joint arthrodesis implant screws are 20 mm and 24 mm - True Which of the following products can be used for passing suture through the plantar plate in the CPR technique? Mini Scorpion™ DX suture passer Arthrex Viper Pigtail SutureLasso™ suture passer All of the above - All Double Compression Plates are available in what sizes? - 20mm, 25mm, & 30mm What are the advertised sizes of the Compression FT Screw line? - Micro: 2.5, Mini: 3.5, Standard: 4.0; Large: 5.0; X-Large: 7.0 The normal Hallux Valgus Angle (HVA) is: - <15 degrees The normal Intermetatarsal Angle (IMA) is: - <9 degrees True or False: The Mini TightRope® FT implant features either a 4.5 mm Bio version or a 3.5 mm Titanium version. - true What area of the hand does the median nerve give sensory innervation? - The palmar aspect of the thumb, index, long and radial half of the ring finger