J P van der List1, H Chawla2, H A Zuiderbaan3, A D Pearle2. 1. Department of Orthopaedic Surgery, Computer Assisted Surgery Center, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 E. 70th Street, New York, NY, 10021, USA. vanderlistj@hss.edu. 2. Department of Orthopaedic Surgery, Computer Assisted Surgery Center, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 E. 70th Street, New York, NY, 10021, USA. 3. Department of Orthopaedic Surgery, Spaarne Hospital, Hoofddorp, The Netherlands.
Abstract
PURPOSE: Historically poor results of survivorship and functional outcomes of patellofemoral arthroplasty (PFA) have been reported in the setting of isolated patellofemoral osteoarthritis. More recently, however, fairly good results of PFA were reported, but the current status of PFA outcomes is unknown. Therefore, a systematic review was performed to assess overall PFA survivorship and functional outcomes. METHODS: A search was performed using PubMed, Embase and Cochrane systems, and the registries were searched. Twenty-three cohort studies and one registry reported survivorship using Kaplan-Meier curve, while 51 cohort studies reported functional outcomes of PFA. RESULTS: Twelve studies were level II studies, while 45 studies were level III or IV studies. Heterogeneity was mainly seen in type of prosthesis and year the cohort started. Nine hundred revisions in 9619 PFAs were reported yielding 5-, 10-, 15- and 20-year PFA survivorships of 91.7, 83.3, 74.9 and 66.6 %, respectively, and an annual revision rate of 2.18. Functional outcomes were reported in 2587 PFAs with an overall score of 82.2 % of the maximum score. KSS and Knee Function Score were 87.5 and 81.6 %, respectively. CONCLUSION: This systematic review showed that fairly good results of PFA survivorship and functional outcomes were reported at short- and midterm follow-up in the setting of isolated patellofemoral osteoarthritis. Heterogeneity existed mainly in prosthesis design and year the cohort started. CLINICAL RELEVANCE: These results provide a clear overview of the current status of PFA in the setting of isolated patellofemoral osteoarthritis. LEVEL OF EVIDENCE: IV.
PURPOSE: Historically poor results of survivorship and functional outcomes of patellofemoral arthroplasty (PFA) have been reported in the setting of isolated patellofemoral osteoarthritis. More recently, however, fairly good results of PFA were reported, but the current status of PFA outcomes is unknown. Therefore, a systematic review was performed to assess overall PFA survivorship and functional outcomes. METHODS: A search was performed using PubMed, Embase and Cochrane systems, and the registries were searched. Twenty-three cohort studies and one registry reported survivorship using Kaplan-Meier curve, while 51 cohort studies reported functional outcomes of PFA. RESULTS: Twelve studies were level II studies, while 45 studies were level III or IV studies. Heterogeneity was mainly seen in type of prosthesis and year the cohort started. Nine hundred revisions in 9619 PFAs were reported yielding 5-, 10-, 15- and 20-year PFA survivorships of 91.7, 83.3, 74.9 and 66.6 %, respectively, and an annual revision rate of 2.18. Functional outcomes were reported in 2587 PFAs with an overall score of 82.2 % of the maximum score. KSS and Knee Function Score were 87.5 and 81.6 %, respectively. CONCLUSION: This systematic review showed that fairly good results of PFA survivorship and functional outcomes were reported at short- and midterm follow-up in the setting of isolated patellofemoral osteoarthritis. Heterogeneity existed mainly in prosthesis design and year the cohort started. CLINICAL RELEVANCE: These results provide a clear overview of the current status of PFA in the setting of isolated patellofemoral osteoarthritis. LEVEL OF EVIDENCE: IV.
Authors: Laura J Kleeblad; Jelle P van der List; Hendrik A Zuiderbaan; Andrew D Pearle Journal: Knee Surg Sports Traumatol Arthrosc Date: 2017-11-28 Impact factor: 4.342
Authors: Andrew D Pearle; Jelle P van der List; Lily Lee; Thomas M Coon; Todd A Borus; Martin W Roche Journal: Knee Date: 2017-02-06 Impact factor: 2.199
Authors: Peter L Lewis; Francois Tudor; Michelle Lorimer; John McKie; Eric Bohm; Otto Robertsson; Keijo T Makela; Jaason Haapakoski; Ove Furnes; Christoffer Bartz-Johannessen; Rob G H H Nelissen; Liza N Van Steenbergen; Donald C Fithian; Heather A Prentice Journal: Clin Orthop Relat Res Date: 2020-06 Impact factor: 4.755