1|P a g e
2026 ARTHROPLASTY IOT (ARTHREX)
EXAM ALL QUESTIONS AND CORRECT
DETAILED ANSWERS ALREADY A
GRADED WITH EXPERT FEEDBACK |
NEW AND REVISED
1. A primary goal of total joint arthroplasty is to restore function by
primarily addressing which underlying pathology?
A. Ligamentous instability
B. Muscle atrophy
C. Degenerative joint surface failure
D. Peripheral nerve compression
Degenerative changes to articular cartilage and subchondral
bone are the primary indications for arthroplasty, with implants
designed to replace failed joint surfaces.
2. During preoperative planning for total hip arthroplasty, templating
is primarily used to determine which factor?
A. Surgical approach selection
B. Patient positioning
C. Implant size and alignment
D. Anesthesia requirements
Templating assists surgeons in estimating implant size, offset,
and alignment to restore biomechanics.
3. Which Arthrex principle most directly supports reducing
intraoperative infection risk?
A. Modular implant design
,2|P a g e
B. Strict adherence to sterile field integrity
C. Minimally invasive exposure
D. Use of powered instrumentation
Maintaining sterility throughout the procedure is critical to
infection prevention.
4. A scrub technician notices a glove tear during cementation. What
is the most appropriate immediate action?
A. Ignore until the procedure ends
B. Rinse the glove with sterile saline
C. Announce contamination and change gloves
D. Apply antimicrobial solution
Any breach in sterile barrier requires immediate correction to
maintain patient safety.
5. Which bearing surface combination is commonly used in modern
total hip arthroplasty to reduce wear?
A. Metal-on-metal
B. Ceramic-on-polyethylene
C. Polyethylene-on-polyethylene
D. Stainless steel-on-polyethylene
Ceramic heads with highly cross-linked polyethylene liners
reduce wear and osteolysis.
6. In knee arthroplasty, proper femoral component rotation is most
critical for which outcome?
A. Blood loss reduction
B. Cement curing time
C. Patellar tracking and knee kinematics
D. Tourniquet efficiency
Incorrect rotation can lead to maltracking and postoperative
pain.
7. Which Arthrex shoulder system principle emphasizes anatomic
reconstruction?
A. Reverse biomechanics
B. Restoration of native joint geometry
C. Constrained articulation
D. Cement fixation
,3|P a g e
Anatomic shoulder arthroplasty aims to replicate normal
anatomy.
8. During total knee arthroplasty, which ligament is typically
sacrificed in a posterior-stabilized design?
A. MCL
B. LCL
C. PCL
D. ACL
Posterior-stabilized implants replace PCL function with a cam-
post mechanism.
9. Which patient factor most increases the risk of postoperative joint
infection?
A. Age under 50
B. Controlled hypertension
C. Poorly controlled diabetes
D. Prior arthroscopy
Hyperglycemia impairs wound healing and immune response.
10. The primary function of bone cement in arthroplasty is to:
A. Promote bone growth
B. Act as a lubricant
C. Provide immediate implant fixation
D. Replace bone stock
Cement acts as a grout, not an adhesive, securing the implant.
11. In Arthrex instrumentation, color-coding is primarily
intended to:
A. Improve aesthetic organization
B. Reduce tray weight
C. Enhance workflow efficiency and accuracy
D. Identify disposable items
Color-coding minimizes errors and speeds intraoperative
identification.
12. A shoulder arthroplasty is converted intraoperatively to a
reverse configuration due to:
A. Glenoid bone loss only
B. Surgeon preference
, 4|P a g e
C. Irreparable rotator cuff deficiency
D. Patient age
Reverse designs compensate for deficient rotator cuff function.
13. Which structure is at greatest risk during an anterior hip
approach?
A. Sciatic nerve
B. Lateral femoral cutaneous nerve
C. Femoral artery
D. Obturator nerve
The lateral femoral cutaneous nerve is vulnerable during
anterior exposure.
14. A sterile processing technician must verify which parameter
after steam sterilization?
A. Tray weight
B. Time, temperature, and pressure
C. Instrument brand
D. Implant size
Sterilization efficacy depends on validated cycle parameters.
15. In total knee arthroplasty, tibial slope primarily affects:
A. Patellar height
B. Flexion stability and kinematics
C. Incision length
D. Cement mantle thickness
Incorrect slope alters ligament tension and flexion behavior.
16. Which Arthrex principle supports value-based care?
A. Increased implant inventory
B. Efficient surgical workflow and reduced complications
C. Longer operative time
D. Maximal component constraint
Efficiency and reduced complications improve outcomes and
cost-effectiveness.
17. What is the most common indication for revision
arthroplasty?
A. Implant recall
B. Aseptic loosening
2026 ARTHROPLASTY IOT (ARTHREX)
EXAM ALL QUESTIONS AND CORRECT
DETAILED ANSWERS ALREADY A
GRADED WITH EXPERT FEEDBACK |
NEW AND REVISED
1. A primary goal of total joint arthroplasty is to restore function by
primarily addressing which underlying pathology?
A. Ligamentous instability
B. Muscle atrophy
C. Degenerative joint surface failure
D. Peripheral nerve compression
Degenerative changes to articular cartilage and subchondral
bone are the primary indications for arthroplasty, with implants
designed to replace failed joint surfaces.
2. During preoperative planning for total hip arthroplasty, templating
is primarily used to determine which factor?
A. Surgical approach selection
B. Patient positioning
C. Implant size and alignment
D. Anesthesia requirements
Templating assists surgeons in estimating implant size, offset,
and alignment to restore biomechanics.
3. Which Arthrex principle most directly supports reducing
intraoperative infection risk?
A. Modular implant design
,2|P a g e
B. Strict adherence to sterile field integrity
C. Minimally invasive exposure
D. Use of powered instrumentation
Maintaining sterility throughout the procedure is critical to
infection prevention.
4. A scrub technician notices a glove tear during cementation. What
is the most appropriate immediate action?
A. Ignore until the procedure ends
B. Rinse the glove with sterile saline
C. Announce contamination and change gloves
D. Apply antimicrobial solution
Any breach in sterile barrier requires immediate correction to
maintain patient safety.
5. Which bearing surface combination is commonly used in modern
total hip arthroplasty to reduce wear?
A. Metal-on-metal
B. Ceramic-on-polyethylene
C. Polyethylene-on-polyethylene
D. Stainless steel-on-polyethylene
Ceramic heads with highly cross-linked polyethylene liners
reduce wear and osteolysis.
6. In knee arthroplasty, proper femoral component rotation is most
critical for which outcome?
A. Blood loss reduction
B. Cement curing time
C. Patellar tracking and knee kinematics
D. Tourniquet efficiency
Incorrect rotation can lead to maltracking and postoperative
pain.
7. Which Arthrex shoulder system principle emphasizes anatomic
reconstruction?
A. Reverse biomechanics
B. Restoration of native joint geometry
C. Constrained articulation
D. Cement fixation
,3|P a g e
Anatomic shoulder arthroplasty aims to replicate normal
anatomy.
8. During total knee arthroplasty, which ligament is typically
sacrificed in a posterior-stabilized design?
A. MCL
B. LCL
C. PCL
D. ACL
Posterior-stabilized implants replace PCL function with a cam-
post mechanism.
9. Which patient factor most increases the risk of postoperative joint
infection?
A. Age under 50
B. Controlled hypertension
C. Poorly controlled diabetes
D. Prior arthroscopy
Hyperglycemia impairs wound healing and immune response.
10. The primary function of bone cement in arthroplasty is to:
A. Promote bone growth
B. Act as a lubricant
C. Provide immediate implant fixation
D. Replace bone stock
Cement acts as a grout, not an adhesive, securing the implant.
11. In Arthrex instrumentation, color-coding is primarily
intended to:
A. Improve aesthetic organization
B. Reduce tray weight
C. Enhance workflow efficiency and accuracy
D. Identify disposable items
Color-coding minimizes errors and speeds intraoperative
identification.
12. A shoulder arthroplasty is converted intraoperatively to a
reverse configuration due to:
A. Glenoid bone loss only
B. Surgeon preference
, 4|P a g e
C. Irreparable rotator cuff deficiency
D. Patient age
Reverse designs compensate for deficient rotator cuff function.
13. Which structure is at greatest risk during an anterior hip
approach?
A. Sciatic nerve
B. Lateral femoral cutaneous nerve
C. Femoral artery
D. Obturator nerve
The lateral femoral cutaneous nerve is vulnerable during
anterior exposure.
14. A sterile processing technician must verify which parameter
after steam sterilization?
A. Tray weight
B. Time, temperature, and pressure
C. Instrument brand
D. Implant size
Sterilization efficacy depends on validated cycle parameters.
15. In total knee arthroplasty, tibial slope primarily affects:
A. Patellar height
B. Flexion stability and kinematics
C. Incision length
D. Cement mantle thickness
Incorrect slope alters ligament tension and flexion behavior.
16. Which Arthrex principle supports value-based care?
A. Increased implant inventory
B. Efficient surgical workflow and reduced complications
C. Longer operative time
D. Maximal component constraint
Efficiency and reduced complications improve outcomes and
cost-effectiveness.
17. What is the most common indication for revision
arthroplasty?
A. Implant recall
B. Aseptic loosening
