Long-term outcomes of one single-design varus valgus constrained versus one single-design rotating hinge in revision knee arthroplasty after over 10-year follow-up - Pablo Sanz-Ruiz; Víctor Estuardo León-Román; José Antonio Matas-Diez; Manuel Villanueva-Martínez; Javier Vaquero (Journal of Orthopaedic Surgery and Research, 2022)