Arthroplasty IOT- Questions & Answers
100% Solved
All of the following are indications for rTSA, EXCEPT: Correct Ans-Small, reparable RC tear
What is the neck-shaft angle range for the Univers II and Apex Correct Ans-125-140º
What are the 3 hallmarks of osteoarthritis seen on X-ray? Correct Ans-Joint space narrowing,
anterior escape, osteophytes
What is the average anatomic neck-shaft angle of the humerus? Correct Ans-132.5º
What is the average humeral retroversion that is reproduced during shoulder arthroplasty?
Correct Ans-30º
What is the most common form of arthritis? Correct Ans-Osteoarthritis
What group of prior surgeries is the most common cause of Capsulorraphy Arthropathy?
Correct Ans-GH Joint Stabilization
What nerve innervates the deltoid muscle? Correct Ans-Axillary nerve
, Which muscle/tendon can be incised (1-1.5 cm) to help exposure during shoulder arthroplasty?
Correct Ans-Pec. major
What vascular structure is found at the deltopectoral interval? Correct Ans-Cephalic vein
What is the most common glenoid wear pattern in shoulder osteoarthritis? Correct Ans-
Retroversion/posterior wear
After the glenosphere is inserted into the Univers Revers Universal Glenoid, what is the
definitive way to verify morse taper engagement? Correct Ans-Use the glenosphere forceps
with a linear pull
What is the most common complication with rTSA resulting in re-operation/revision? Correct
Ans-Scapular notching
What is the insertion site for the subscapularis? Correct Ans-Lesser tuberosity
The offset of the heads in the Univers II Total Shoulder is? Correct Ans-3.5 mm
Which of the following is a key feature of the Univers II and Apex TSA systems? Correct Ans-
125-140º inclination variation
100% Solved
All of the following are indications for rTSA, EXCEPT: Correct Ans-Small, reparable RC tear
What is the neck-shaft angle range for the Univers II and Apex Correct Ans-125-140º
What are the 3 hallmarks of osteoarthritis seen on X-ray? Correct Ans-Joint space narrowing,
anterior escape, osteophytes
What is the average anatomic neck-shaft angle of the humerus? Correct Ans-132.5º
What is the average humeral retroversion that is reproduced during shoulder arthroplasty?
Correct Ans-30º
What is the most common form of arthritis? Correct Ans-Osteoarthritis
What group of prior surgeries is the most common cause of Capsulorraphy Arthropathy?
Correct Ans-GH Joint Stabilization
What nerve innervates the deltoid muscle? Correct Ans-Axillary nerve
, Which muscle/tendon can be incised (1-1.5 cm) to help exposure during shoulder arthroplasty?
Correct Ans-Pec. major
What vascular structure is found at the deltopectoral interval? Correct Ans-Cephalic vein
What is the most common glenoid wear pattern in shoulder osteoarthritis? Correct Ans-
Retroversion/posterior wear
After the glenosphere is inserted into the Univers Revers Universal Glenoid, what is the
definitive way to verify morse taper engagement? Correct Ans-Use the glenosphere forceps
with a linear pull
What is the most common complication with rTSA resulting in re-operation/revision? Correct
Ans-Scapular notching
What is the insertion site for the subscapularis? Correct Ans-Lesser tuberosity
The offset of the heads in the Univers II Total Shoulder is? Correct Ans-3.5 mm
Which of the following is a key feature of the Univers II and Apex TSA systems? Correct Ans-
125-140º inclination variation
