The total length of the fins and stem on a JOURNEY II tibial baseplate is _____mm.

• A. 40 mm
• B. 50 mm
• C. 60 mm
• D. 70 mm

Answer: (B)

The key idea here is reading a prosthetic specification for how far an implant extends into the bone. The fins provide lateral/medial anchorage on the tibial surface, while the stem goes into the tibial canal for fixation. The total length is simply the combined projection of those parts, which matters for fitting the implant to a patient’s anatomy and ensuring stable alignment.

For the JOURNEY II tibial baseplate, that combined fins-and-stem length is 50 mm. This dimension is chosen to balance secure fixation with appropriate prosthesis positioning, so the baseplate sits correctly without overhang or crowding the canal. Other lengths would indicate different component configurations and aren’t the specified fit for this baseplate.