Originally submitted as an unidentified total hip prosthesis with the following statement: "I cannot seem to find an exact match for these implants, although it does look similar to some Biomet implants. It is now 18 years post-op. Any help would be greatly appreciated."
7/5/21: Identified by Andrew Schwartz, MD as probably being a high-offset Mallory-Head total hip prosthesis manufactured by Biomet