STEMS
Cemented vs Uncemented Pros and Cons? What are the Cemented femoral stem options? How does the composite beam work? What is the Charnley evolution - identify a Charnley stem? What is the triple slip in C-stem? Composite Beam vs Taper Slip? Composite Beam vs Taper Slip? Role of centralizer in taper slip stem? What is the benefit of subsidence in taper slip? Difference between Moore and Thompson implant? What are isoelastic stems? CEMENTLESS Stems
What are the Uncemented Femoral Stem options? How is HA coating used in THR? How can you classify uncemented stems? How can you classify uncemented stems by shape? What is Stress shielding? How to prevent stress shielding? What law? Circumfrential vs patchy coating? How do we know if the cementless stem if stable or not? (planning for extraction) Does presence of pedestal always mean unstable? TRUNNION
Why is Stryker Exeter called V40? What does 12/14 taper mean? Why cannot mix heads and femoral head? What increase trunnion wear? CUPS
Cemented vs Uncemented Cups? What are the parts of the Cemented cup? What are the Acetabular Cup Options? Types of contact between head and cup? [Radial Clearance] How is initial stability achieved? Bearings
How can you tell this is CoC from XR? MY IMPLANT CHOICE
What is the Dorr's Classification? What are the different bearing wear rates? AOJNRR Key Charts for THR What approach will you use? Pros and Cons Posterior vs Lateral? Pros and Cons Posterior vs Anterior? Does approach affect dislocation rates? What is the ideal THR implant positioning? How do you place acetabular screws? How do you critique the XR? Joint Registry and Implant Choice
What is a joint registry? What are the uses of a joint registry? What are the strength of using joint registry data? What are the cons of joint registry? What sparked the use of registry data? Implant/Approach Choice
“Implant choice based on basic science principles, my training and registry data - can be divided into type of fixation”
What is your implant fixation choice for this patient? What is your bearing surface of choice? What is the head size you will use? COMPLICATIONS
Causes of post THR sciatic nerve palsy? How will you investigate? Management of post THR sciatic nerve palsy? Outcomes of post THR Sciatic nerve palsy? What are your thoughts on bilateral THR? Robotics/ Navigation
How can you compare robotics systems? Comparative Survivability of Joint Replacements
- Ankle - 10 year survival 77%
- TEA -88%
- Reverse shoulder 94%
- TSA 93% (Young et al.)
- HTO and UKA 80% (Dettoni)
- TKR 95%
- THR 95%
