The Present Situation of Patellofemoral Arthroplasty in the Management of Solitary Patellofemoral Osteoarthritis



Department of Orthopaedic Surgery, La Paz University Hospital, Madrid, Spain


Patellofemoral (PF) osteoarthritis (OA) is a somewhat predominant illness, affecting up to 24% of women and 11% of
men over the age of 55 years who suffer from symptomatic knee OA. The purposes of this narrative overview are to
summarize the present situation of patellofemoral arthroplasty (PFA) in the treatment of solitary PF-OA, and to give
an account of the clinical results of PFA for the management of solitary PF degenerative OA of the knee. A Cochrane
Library and PubMed (MEDLINE) examination related to the position of PFA in PF-OA was carried out. A number of
publications have encountered that PFA is an efficacious treatment for solitary PF-OA. Additionally, a systematic review
described fairly good results of PFA survivorship and functional outcomes at short- and mid-run follow-up in the setting
of solitary PF-OA. Success of PFA depends on accurate patient selection rather than prosthetic failure or wear. In many
reports, the main cause of PFA failure is advancement of tibiofemoral OA. In contemporary times, encouraging results
have been accomplished by the association of PFA and unicompartmental knee arthroplasty (UKA). In conclusion,
patients with solitary PF-OA with severe anterior knee pain may be candidates for PFA. The success of the surgical
procedure and the long-run survivorship of PFA are related to a good surgical technique and observation to meticulous
indications and contraindications in patient selection. Newer prostheses have also played a part to ameliorated
outcomes. PFA is an alternative for younger patients with solitary PF-OA.
Level of evidence: III