CC-BY-NC-ND 4.0 · Joints 2017; 05(04): 237-245
DOI: 10.1055/s-0037-1606618
Review Article
Georg Thieme Verlag KG Stuttgart · New York

Patellofemoral Arthroplasty: Current Concepts and Review of the Literature

Gabriele Pisanu1, Federica Rosso1, Corrado Bertolo1, Federico Dettoni1, Davide Blonna1, Davide Edoardo Bonasia1, Roberto Rossi1
  • 1Department of Orthopaedics and Traumatology, University of Study of Turin, Ao Mauriziano Umberto I, Turin, Italy
Further Information

Publication History

Publication Date:
04 October 2017 (eFirst)


Patellofemoral osteoarthritis (PFOA) can be associated with anterior knee pain, stiffness, and functional impairment. Some authors report that PFOA affects approximately 9% of patients older than 40 years with a greater prevalence in females. Etiology of PFOA is multifactorial and is related to the presence of abnormal stresses at the PF joint due to knee- and patient-related factors. The need for a joint preserving treatment by isolated replacement of the injured compartment of the knee led to the development of PF arthroplasty (PFA). When a correct PF replacement is performed, PFA preserves physiologic tibiofemoral joint, thus allowing patients for a rapid recovery with a high satisfaction. The outcomes for PFA are quite variable with a trend toward good to excellent results, mainly owing to the improvement in surgical techniques, patient selection, and implant design. The development of the second generation of PFA improved the outcomes, which is attributed to the different trochlear designs. Recently, encouraging results have been provided by the association of PFA and unicompartmental knee arthroplasty (UKA). In many studies, the main cause of PFA failure is progression of tibiofemoral OA. The aim of this brief review of literature is to summarize the clinical features, indications and contraindications, surgical techniques, complications, and outcomes of PFA.