Submitted as an unidentified prosthesis by Xiao Hui Tan
Sales Executive, Joint Reconstruction
Pelaling, Selangor, Malaysia
8/5/21: Identified as a Waldemar Link Combicup with an SPCL Stem by Andrew Jessop, Proactive Ortho (Orthopaedic Sales & Marketing), Greater Sydney area, Australia
8/9/21: Jim Malcolm (Managing Director at Link Orthopaedics UK Ltd) does not think that this is a SPCL stem (which he says is S-shaped and has proximal ribs that should be visible). He is "pushing toward Stryker). Andrew Jessop says with an AP view only it's difficult to conclude, but if it is a CombiCup he still leans toward it being a SPCL stem.
Previous suggestions of manufacturer:
7/28/21: Kevin Brown thinks that this could be an Osteonics PSL cup (Striker) because of the striations around the cup.
7/30/21: David Wortman thinks it is a Stryker prosthesis.