The tibial construct lateral thickness with a 9 mm insert is 12.0 mm. Which option reflects this?

The tibial construct lateral thickness with a 9 mm insert is 12.0 mm. Which option reflects this?

• A. 11.0 mm
• B. 12.0 mm
• C. 13.0 mm
• D. 12.5 mm

Answer: (B)

When a tibial construct includes an insert, the overall lateral thickness is the total measurement you’re given for that setup. Here, using a 9 mm insert yields a total thickness of 12.0 mm. So the thickness reflected by the statement is 12.0 mm. If you subtract the insert thickness from the total, you’d get the base construct thickness alone (12.0 minus 9.0 equals 3.0 mm), but the question asks for the total with the insert, which is 12.0 mm.

When a tibial construct includes an insert, the overall lateral thickness is the total measurement you’re given for that setup. Here, using a 9 mm insert yields a total thickness of 12.0 mm. So the thickness reflected by the statement is 12.0 mm. If you subtract the insert thickness from the total, you’d get the base construct thickness alone (12.0 minus 9.0 equals 3.0 mm), but the question asks for the total with the insert, which is 12.0 mm.