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Arthrex TSA IOT Exam Newest 2025/2026 Complete All 100 Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+||Brand New Version!!
arthrex univers II gelons have a ____ offset because of____ - ANSWER-3.5mm offset because COR has a natural medial- posterior offset (does not line up to center of diaphysis of humerus where stem goes)
Glenohumeral Mismatch - ANSWER-relationship/ difference in the radius of humeral head and glenoid components Mismatch- variation in curvature of 2 articulating side
- Round ball on flat surface= unstable
- Zero mismatch
- Round ball on congruent surface= constrained
- You want a balance between mismatch and constrained
- Want the ball to move around the glenoid for mobility but not
too much where they are unstable oRange 0-10 (0 being no mismatch)= 5.5mm ideal mismatch 1 / 3
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Varus (latin for crooked) implant - ANSWER-When implant is not centered in canal but distal aspect of the humerus is midline to the distal prosthesis Causes stress/ fractures Goal to put in neutral or valgus alignment
Univers II & Apex system has 3 dimensional anatomic adaptability in the humeral canal. what are the 3? - ANSWER-1.inclination 125-140 deg. 2. version +/- 10 deg. 3. 3.5mm offset
glenoid poly material - ANSWER-UHMWPE
- options of TSA glenoid poly - ANSWER-1. Pegged (cement)
- Keel (cement) 3. vault lock (press fit/ cement)
keeled TSA glenoid Poly - ANSWER-- has the fin
- two 6mm holes are drilled
-Allows for greater cement integration and anchoring into the vault -Allow the anterior and posterior chambers of the vault to connect 2 / 3
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- Reverse barbs
- Provide an expansion effect with the vault
-Provide greater surface area than flat sided keels
keeled TSA glenoid Poly size and thickness and keel length, Ti marker location - ANSWER-S-XL, 4mm thickness, 13.5 length of keel -Patients with a shorter glenoid vault may be better for keel
(13.5)
- marker in medial portion of the keel
- central 6mm hole
- 2 6mm peripheral holes
- ROC is 38
pegged TSA glenoid poly - ANSWER--can also be called "Kegged glenoid" -inferior horizontal keel with 2 mushroom pegs superior and medial -· Anchor the implant to the inferior mass of the glenoid vault in a plane perpendicular to the pegs -Length maxes surface coverage while minimizing issues with hitting glenoid rim
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