Luchev, G.; Slavchev, S.; Landzhov, B.; Georgiev, G. Translation, Cultural Adaptation, and Validation of the Bulgarian Version of the Forgotten Joint Score-12 (FJS-12) in Patients With Knee Osteoarthritis After Unicompartmental Knee Arthroplasty. C. R. Acad. Bulg. Sci. 2026, 79, 816–824.