DEX IOT Exam | A Grade Questions and Verified Answers| 100% Correct (New 2024/ 2025 Update, Exams of Nursing

Download DEX IOT Exam | A Grade Questions and Verified Answers| 100% Correct (New 2024/ 2025 Update and more Exams Nursing in PDF only on Docsity! DEX IOT Exam | A Grade Questions and Verified Answers| 100% Correct (New 2024/ 2025 Update) QUESTION What area of the hand does the median nerve give sensory innervation? Answer: The palmar aspect of the thumb, index, long and radial half of the ring finger QUESTION True or False: Advantage of the mini-open surgical technique over ECTR is that the surgeon will have a better view of the transverse carpal ligament and the patient will enjoy a quicker return to activity. Answer: False QUESTION Which of the following conditions can mimic the symptoms of carpal tunnel syndrome? (Cervical radiculopathy, median nerve entrapment at the elbow, Thumb CMC arthritis, Nonspecific Tenosynovitis) Answer: All of the Above QUESTION What physical exam test shows a positive result when the patient feels "zaps" to their fingertips as an examiner taps over the median nerve at the wrist? Answer: Tinel's QUESTION The surgeon should aim for the base of which finger when inserting the Centerline™ endoscopic carpal tunnel release into the carpal canal? Answer: ring finger QUESTION The Metatarsophalangeal (MTP) fusion plate is pre-contoured to provide this final anatomical position: Answer: 8º of dorsiflexion and 5º of valgus QUESTION True or False: The most commonly used surgical procedure to treat hallux rigidus is a cheilectomy. Answer: True QUESTION True or False: ACD-A can be added to the ACP syringe after the fact if you realize you need more time before the application. Answer: False QUESTION Answer: Elevation of the talar head QUESTION What is the order of screw placement in the Anterior Ankle Fusion Plate? Answer: Talus locking/non-locking screw fixation, tibia oblong compression hole non-locking screw fixation, anatomic compression hole screw fixation, and final fixation with tibia locking/non locking screws QUESTION Surgical treatment is indicated for which of the following findings in Scaphoid Fractures: Displacement greater than 1mm Angulation greater than 15° Comminuted fractures All of the above Answer: all of the above QUESTION A Cotton Osteotomy is an osteotomy of which bone of the Foot? Answer: Medial Cuneiform QUESTION Which fibers of the scapholunate interosseous ligament are the strongest and provide the main resistant biomechanical role important to wrist function? Answer: dorsal QUESTION Which of the following Arthrex Bone Void Solutions provide cell, signal and scaffold? Answer: ArthroCell™ bone allograft QUESTION ArthroCell™ allograft contains a cellular component referred to as MIAMI cells. What does the acronym MIAMI stand for? Answer: Marrow Isolated Adult Multi-lineage Inducible cells QUESTION True or False: AlloSync™ cubes are composed of 100% DBM Answer: true QUESTION Which of the following bone void fillers are composed of 100% DBM? Select all that apply. StimuBlast® AlloSync™ cortical fibers QuickSet™ AlloSync™ cancellous sponge Answer: AlloSync™ cortical fibers AlloSync™ cancellous sponge QUESTION How does the Arthrex FT compression screw provide compression? Answer: The thread pitch is steeper at the tip of the screw than it is near the driver QUESTION Of the three sizes of FT Compression screws, all use a hexalobe/star shaped driver except for which uses a hex driver. Answer: 2.5mm QUESTION Advantages of Arthrex Mini FT and Standard FT Compression screw over the competition include: -More lengths in Mini than Accutrak 2 - Same diameter through length of screw meaning easier change of screw length if needed without losing compression compared to 'tapered screw' - Hexalobe Driver for more insertional torque -Compression achieved with entire length of screw compared to Herbert screw all Answer: More lengths in Mini than Accutrak 2- Same diameter through length of screw meaning easier change of screw length if needed without losing compression compared to 'tapered screw'- Hexalobe Driver for more insertional torque- Compression achieved with entire length of screw compared to Herbert screw ***All of the above QUESTION What soft tissue structure gives support to the thumb during the pinch grasp? Answer: QUESTION When using the RetroFusion™ PIP joint arthrodesis implant screw, final compression of the joint is accomplished by turning the screwdriver: Answer: clockwise QUESTION 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 Answer: All of the above QUESTION When tying the sutures over the proximal phalanx in the CPR technique, what position should you hold the toe in for correct anatomical placement? Answer: 20-30 degrees of plantarflexion QUESTION True or False: The two sizes for the RetroFusion™ PIP joint arthrodesis implant screws are 20 mm and 24 mm Answer: True QUESTION 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 Answer: All QUESTION Double Compression Plates are available in what sizes? Answer: 20mm, 25mm, & 30mm QUESTION What are the advertised sizes of the Compression FT Screw line? Answer: Micro: 2.5, Mini: 3.5, Standard: 4.0; Large: 5.0; X-Large: 7.0 QUESTION The normal Hallux Valgus Angle (HVA) is: Answer: <15 degrees QUESTION The normal Intermetatarsal Angle (IMA) is: Answer: <9 degrees QUESTION True or False: The Mini TightRope® FT implant features either a 4.5 mm Bio version or a 3.5 mm Titanium version. Answer: true QUESTION A chronic disruption of the thumb UCL is referred to as a? Answer: Gamekeeper's thumb QUESTION What size graft should be used for a thumb UCL reconstruction when using the 3.5 DX SwiveLock® SL anchor? Answer: 2mm QUESTION What is the normal anatomic volar tilt of the distal radius? Answer: 11 degrees Answer: scaphoid, lunate, triquetrum, pisiform QUESTION What is another name for the tarsal-metatarsal joint of the foot? Answer: Lisfranc's joint QUESTION The Lisfranc ligament originates on the and inserts on the ? Answer: Medial cuneiform, base of the 2nd metatarsal QUESTION Lisfranc injuries are commonly due to which of the following mechanism(s)? Motor vehicle accidents Falls from heights Athletic injuries All of the above Answer: All QUESTION What feature does the SynergyRF™ Bipolar Ablation System have that NONE of the competitors have? Touch screen capability Scope detection Integrates with the Synergy Imaging Platform Answer: integrates with synergy imaging platform QUESTION What is the default ablation setting for the MP50? Answer: 4 QUESTION How many holes does the left and right specific Long 5th Metatarsal Hook Plate have? Answer: 7 QUESTION What nerve is most at risk during percutaneous screw placement for a proximal 5th metatarsal fracture? Answer: sural QUESTION What is the conventional name for a temporary external fixator spanning the ankle utilizing at least 2 pins in the tibia, a transfixion pin in the calcaneus, and 2 carbon fiber rods? Answer: Delta frame QUESTION Which of the following statements is TRUE regarding external fixation? It is typically a more rigid solution than casting Double-stacking carbon-fiber rods will increase torsional rigidity It can provide bony stability when soft tissue injury prevents internal fixation 1 & 2 are correct all Answer: It is typically a more rigid solution than casting Double-stacking carbon-fiber rods will increase torsional rigidity It can provide bony stability when soft tissue injury prevents internal fixation 1 & 2 are correct ALL OF THE ABOVE*** QUESTION What are the most common locations for OCD's in the Talus? Answer: Anterolateral & Posteromedial QUESTION Which of the following is NOT a feature or benefit of the 3.5 mm Mini Compression FT Screw? Variable Stepped Thread Pitch Improved Torque Transmission through a Hexalobe recess Conical shaped outer diameter to gain final compression Headless Cannulated Answer: Variable Stepped Thread Pitch Improved Torque Transmission through a Hexalobe recess ***Conical shaped outer diameter to gain final compression Headless Cannulated Comminuted fractures All of the above Answer: All of the above QUESTION A chronic disruption of the thumb UCL is referred to as a? Answer: gamekeeper's thumb QUESTION The Ankle Mortise is composed of all of the following bones, EXCEPT: fibula tibia calc talus Answer: calc QUESTION What is the strongest ligament in the ankle syndesmotic ligament complex? Answer: PiTFL QUESTION Which of the following is NOT a benefit of using the Ankle TightRope® Implant: Answer: The TR needs to be removed 90-120 days after surgery QUESTION What plate and surgical approach is used most commonly for fixation of pilon fractures? Answer: Anterolateral QUESTION True or False: Locking screws give you a much more rigid construct compared to non-locking screws. Answer: True QUESTION The first step when reducing a BiMaleolar ankle fracture with an unstable syndesmosis should be: Answer: fixation of medial mal QUESTION True or False: All screw holes in the Locking Third Tubular Plates accept 3.5 nonlocking cortical, 3.5 locking, and 4 mm cancellous screws Answer: True QUESTION Answer: Answer: Answer: Answer: Answer: True or False: The Anterolateral Distal Tibia Plates come in left and right, 4 hole to 18 hole plates, increasing by 2 holes at a time. True QUESTION What are the thicknesses of the Calcaneal Fracture Plates? 1.35mm QUESTION The bipolar ablation breaks down tissue by the following process? Chemical reaction - gently breaks down tissue at the molecular level QUESTION What is the primary purpose of the Lavage function on the DualWave™ arthroscopy pump? Help hemostasis QUESTION The waste tube on the color coded Dualwave tubing is what color? red QUESTION Which statement about Arthrex Amnion™ products is TRUE? They are rich in growth factors and collagen that support tissue growth They act as an adhesion biomechanical barrier to protect tendons and nerves They reduce inflammation and scarring They are anti-microbial Answer: ALL QUESTION All of the following are true for ArthroFLEX® dermal allografts, EXCEPT: They are sterilized to 10-6 with 97% DNA removed They are ready to use off the shelf with minimal prep time There is a 3 year shelf-life Must be kept frozen until use Answer: must be kept frozen QUESTION (T/F) The fixed angle screw trajectory of the distal radius plate is designed to anatomically support the subchondral bone of the distal radius? Answer: True QUESTION Distal radius fractures are commonly caused by which maneuver? Answer: FOOSH (fall on outstretched hand) QUESTION (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. Answer: True QUESTION (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. Answer: True QUESTION Which distal radius plating option would be best for a highly comminuted fx? Answer: spanning plate QUESTION Which of the following is a benefit of Dorsal Radius Plating? Answer: 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 QUESTION Which of the following is an aiming option for fixed angle placement when using a distal radius plate option? Answer: A. PEEK aiming guide B. Short drill sleeves C. Threaded locking tower ALL of the above QUESTION What is the degree of angle on the Variable Angle Guide included with the distal radius plates? Answer: 20 degrees QUESTION The following are options to help align the peek aiming guide onto the distal radius plate to reduce malalignment. Answer: 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 QUESTION Under what circumstances should surgeons operate on a distal radius fx? Answer: A. articular malalignment > 1mm B. Radial shortening > 10mm C. Closed fx with no displacement