DEX IOT Review Study Guide with Complete Solutions

DEX IOT Review Study Guide with Complete Solutions What is the major difference between Arthrex PARS and competitor PARS systems? - Answer️️ -Locking FiberWire stitch configuration (stronger than simple transverse suture passage) Where does the sural nerve cross the lateral border of the achilles tendon? (average) - Answer️️ -57 mm proximal to the insertion; or 9.8 cm from the calcaneal tuberosity according to some cadaveric studies Where does a midsubstance achilles rupture typically occur? - Answer️️ -diminished vascular watershed region (2-6 cm proximal to the insertion) When inserting the PARS jig, what position should the foot be in? - Answer️️ -resting plantarflexion and neutral rotation How proximal is the first PARS needle insertion relative to the superior calcaneus? (average) - Answer️️ -110 mm (97-120mm) How proximal is the 5th PARS needle insertion relative to the superior calcaneus? (average) - Answer️️ -93.6 mm (82-105mm) What type of rotation (internal vs external) may reduce the risk of penetrating the sural nerve with PARS needle passage? - Answer️️ -External (internal increases the chances) ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 2 What procedures are commonly done in conjunction with Spring Ligament IB? (in descending order) - Answer️️ -1) FDL Transfer to navicular (P - D) 1) Resection of diseased Posterior Tibial Tendon 2) Medializing calc osteotomy 3) Gastroc recession 4) Cotton osteotomy (opening wedge med. cuneiform) 5) Lapidus (first metatarsocuneiform arthrodesis) 6) Lateral column lengthening calc osteotomy When doing the blind-tunnel tenodesis technique, when should the surgeon measure the diameter of the tendon? - Answer️️ -after the tendon has been whipstitched** Which arthrex bone void solution provides cell, signal and scaffold? - Answer️️ - Arthrocell bone allograft Arthrocell allograft contains a cellular component referred to as MIAMI cells. What does the acronym MIAMI stand for? - Answer️️ -Marrow Isolated Adult multi-lineage inducible cells Which of our bone void fillers are composed of 100% DBM? - Answer️️ -Allosync Cortical Fibers Allosync Expand cortical fibers Allosync Pure Allosync Cancellous sponges (strips, cubes, 12x3 button) What are the three zones of the scaphoid? - Answer️️ -Distal pole, waist, proximal pole Surgical treatment is indicated for which of the following findings in scaphoid fractures? ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 3 A. Displacement greater than 1mm B. Angulation greater than 15 degrees C. Comminuted fractures D. All the above - Answer️️ -D. All the above Which fibers of the scapholunate interosseous ligament are the strongest and most important to wrist function? - Answer️️ -Dorsal A cotton osteotomy is an osteotomy of which bone of the foot? - Answer️️ -Medial Cuneiform What is the order of screw placement in the anterior ankle fusion plate? - Answer️️ -1. Talus locking/non-locking screw fixation 2. Tibia oblong compression hole non-locking screw fixation 3. Anatomic compression hole screw fixation, 4. Final fixation with tibia locking/non locking screws At what stage of flatfoot deformity is an ankle fusion often indicated? - Answer️️ -Stage 4 All of the following are components of flatfoot deformity, EXCEPT: A. Loss of longitudinal arch B. lateral translation of the navicular on the talus