JR 101 Week 4 Questions with Answers
2026 Quiz
1. Acetabular com- we want the bottom acetabular cup to sit at the teardrop level and also to be close
ponent location up against the acetabular tear drop
2. bottom of the ac- fossa
etabular socket is
called:
3. this region sits lunate region
within the ac-
etabular socket
4. this region of posterior superior rim
the acetabulum
is where the
labrum sits:
5. this is the bottom acetabular notch- transverse ligament is the soft tissue structure that goes across
of the acetabu- it
lum that shapes
like a divot
6. where do we -Safe zone= posterior-superior=> only risk is sciatic nerve if you go really far back,
want to put out superior gluteal nerve, and vessels
screws in the ac- -Caution zone= posterior-inferior=> safe if screws are less than 20 m- risk includes
etabular compo- sciatic nerve, inferior gluteal nerve and internal prudenal nerve
nent? -Danger Zone= anterior- superior and anterior- inferior
7. Trident 2 Acetab- Tritanium shells: consist of additive manufacturing
ular System -built from trident innerchange locking mechanism having a polyethylene liner
locked in the shell
-can get solidback in only tritanium, not HA
8.
1/8
, JR 101 Week 4 Questions with Answers
2026 Quiz
What are the -Trident Torx Screw with T20 Torx Screwdriver
names of Tri- -Osteolock screw with 3.5 mm Hex Screwdriver
dent Acetabular
screws?
9. Trident 2 Im- -Hemi HrydroxylApetitie clusterhole (42-66mm)
plants -Hemi PSL HA clusterhole (42-66mm)
-Hemi Solidback Tritanium (can't put screws in this cup)- (42-66mm)
-Hemi Tritanium Clusterhole (42-66mm)
-Hemi Tritanium Multihole (42-72 mm)- used in revisions
10. Trident 2 Fixation 1. Additive Manufactured Tritanium
surfaces 2. Plasma Spray with PureFix HA
-Trident 2 Tritanium has IN-GROWTH technology
11. Trident 2 Tritani- Porosity= 76% at the surface of bone interface
um Average Pore Size= 434 um
Coeflcient of friction= 1.2
12. Trident 2 Trita- 52.5 in diameter
nium Clusterhole -it is oversized by 0.5 mm than the label
fit -Package labeled at 52 mm
-*Reaming: line to line or 1 mm under
13. Trident 2 HA PSL 53.8 mm in diameter
Cluster fit -Packaged at 52 mm=> it is oversized by 1.8 mm at the rim to expand at the rim to
wedge into the lunate region of the acetabulum
-*Reaming recommendation is line to line or reaming 1 over to accomodate for the
lunate region
14. Trident 2 HA Clus- 52.8 mm in diameter for a 52 mm package
ter regular fit -0.8 mm over because it is does not have PSL grooves
-*Reaming recommendation is line to line or 1 under
2/8
2026 Quiz
1. Acetabular com- we want the bottom acetabular cup to sit at the teardrop level and also to be close
ponent location up against the acetabular tear drop
2. bottom of the ac- fossa
etabular socket is
called:
3. this region sits lunate region
within the ac-
etabular socket
4. this region of posterior superior rim
the acetabulum
is where the
labrum sits:
5. this is the bottom acetabular notch- transverse ligament is the soft tissue structure that goes across
of the acetabu- it
lum that shapes
like a divot
6. where do we -Safe zone= posterior-superior=> only risk is sciatic nerve if you go really far back,
want to put out superior gluteal nerve, and vessels
screws in the ac- -Caution zone= posterior-inferior=> safe if screws are less than 20 m- risk includes
etabular compo- sciatic nerve, inferior gluteal nerve and internal prudenal nerve
nent? -Danger Zone= anterior- superior and anterior- inferior
7. Trident 2 Acetab- Tritanium shells: consist of additive manufacturing
ular System -built from trident innerchange locking mechanism having a polyethylene liner
locked in the shell
-can get solidback in only tritanium, not HA
8.
1/8
, JR 101 Week 4 Questions with Answers
2026 Quiz
What are the -Trident Torx Screw with T20 Torx Screwdriver
names of Tri- -Osteolock screw with 3.5 mm Hex Screwdriver
dent Acetabular
screws?
9. Trident 2 Im- -Hemi HrydroxylApetitie clusterhole (42-66mm)
plants -Hemi PSL HA clusterhole (42-66mm)
-Hemi Solidback Tritanium (can't put screws in this cup)- (42-66mm)
-Hemi Tritanium Clusterhole (42-66mm)
-Hemi Tritanium Multihole (42-72 mm)- used in revisions
10. Trident 2 Fixation 1. Additive Manufactured Tritanium
surfaces 2. Plasma Spray with PureFix HA
-Trident 2 Tritanium has IN-GROWTH technology
11. Trident 2 Tritani- Porosity= 76% at the surface of bone interface
um Average Pore Size= 434 um
Coeflcient of friction= 1.2
12. Trident 2 Trita- 52.5 in diameter
nium Clusterhole -it is oversized by 0.5 mm than the label
fit -Package labeled at 52 mm
-*Reaming: line to line or 1 mm under
13. Trident 2 HA PSL 53.8 mm in diameter
Cluster fit -Packaged at 52 mm=> it is oversized by 1.8 mm at the rim to expand at the rim to
wedge into the lunate region of the acetabulum
-*Reaming recommendation is line to line or reaming 1 over to accomodate for the
lunate region
14. Trident 2 HA Clus- 52.8 mm in diameter for a 52 mm package
ter regular fit -0.8 mm over because it is does not have PSL grooves
-*Reaming recommendation is line to line or 1 under
2/8
