Arden N, Nevitt MC (2006) Osteoarthritis: epidemiology. Best Pract Res Clin Rheumatol 20:3–25. https://doi.org/10.1016/j.berh.2005.09.007

Article  PubMed  Google Scholar 

McAlindon TE, Snow S, Cooper C et al (1992) Radiographic patterns of osteoarthritis of the knee joint in the community: the importance of the patellofemoral joint. Ann Rheum Dis 51:844–849. https://doi.org/10.1136/ard.51.7.844

Article  CAS  PubMed  PubMed Central  Google Scholar 

Crossley KM, Stefanik JJ, Selfe J et al (2016) 2016 patellofemoral pain consensus statement from the 4th International Patellofemoral Pain Research Retreat, Manchester. Part 1: terminology, definitions, clinical examination, natural history, patellofemoral osteoarthritis and patient-reported outcome measures. Br J Sports Med 50:839–843. https://doi.org/10.1136/BJSPORTS-2016-096384

Article  PubMed  Google Scholar 

Arteaga J, Poblete E, Martin F et al (2025) Return to sports and recreational activities after patellofemoral arthroplasty: a systematic review. Journal of ISAKOS 14:100925. https://doi.org/10.1016/j.jisako.2025.100925

Article  PubMed  Google Scholar 

Macri EM, Stefanik JJ, Khan KK et al (2016) Is tibiofemoral or patellofemoral alignment or trochlear morphology associated with patellofemoral osteoarthritis? A systematic review. Arthritis Care Res (Hoboken) 68:1453–1470. https://doi.org/10.1002/acr.22842

Article  PubMed  Google Scholar 

Dai Y, Yin H, Xu C et al (2021) Association of patellofemoral morphology and alignment with the radiographic severity of patellofemoral osteoarthritis. J Orthop Surg Res 16:548. https://doi.org/10.1186/s13018-021-02681-2

Article  PubMed  PubMed Central  Google Scholar 

Feucht MJ, Cotic M, Beitzel K et al (2017) A matched-pair comparison of inlay and onlay trochlear designs for patellofemoral arthroplasty: no differences in clinical outcome but less progression of osteoarthritis with inlay designs. Knee Surg Sports Traumatol Arthrosc 25:2784–2791. https://doi.org/10.1007/s00167-015-3733-2

Article  PubMed  Google Scholar 

Familiari F, Madonna V, Mercurio M et al (2023) Outcomes and complications of inlay versus onlay patellofemoral arthroplasty: a systematic review. Knee 41:124–136. https://doi.org/10.1016/j.knee.2023.01.001

Article  PubMed  Google Scholar 

Beitzel K, Schöttle PB, Cotic M et al (2013) Prospective clinical and radiological two-year results after patellofemoral arthroplasty using an implant with an asymmetric trochlea design. Knee Surg Sports Traumatol Arthrosc 21:332–339. https://doi.org/10.1007/s00167-012-2022-6

Article  PubMed  Google Scholar 

Benazzo F, Rossi SMP, Ghiara M (2014) Partial knee arthroplasty: patellofemoral arthroplasty and combined unicompartmental and patellofemoral arthroplasty implants–general considerations and indications, technique and clinical experience. Knee 21(Suppl 1):S43–S46. https://doi.org/10.1016/S0968-0160(14)50009-9

Article  PubMed  Google Scholar 

Sorel JC, Veltman ES, Honig A et al (2019) The influence of preoperative psychological distress on pain and function after total knee arthroplasty: a systematic review and meta-analysis. Bone Joint J 101-B:7–14. https://doi.org/10.1302/0301-620X.101B1.BJJ-2018-0672.R1

Article  CAS  PubMed  Google Scholar 

Strahl A, Delsmann MM, Simon A et al (2025) A clinical risk score enables early prediction of dissatisfaction 1 year after total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 33:252–264. https://doi.org/10.1002/ksa.12277

Article  PubMed  Google Scholar 

World Health Organisation (2025) Obesity and overweight. https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight. Accessed 17 Nov 2025

Jaeschke R, Singer J, Guyatt GH (1989) Measurement of health status. Ascertaining the minimal clinically important difference. Control Clin Trials 10:407–415. https://doi.org/10.1016/0197-2456(89)90005-6

Article  CAS  PubMed  Google Scholar 

Imhoff AB, Feucht MJ, Bartsch E et al (2019) High patient satisfaction with significant improvement in knee function and pain relief after mid-term follow-up in patients with isolated patellofemoral inlay arthroplasty. Knee Surg Sports Traumatol Arthrosc 27:2251–2258. https://doi.org/10.1007/s00167-018-5173-2

Article  PubMed  Google Scholar 

Bond EC, Reinke EK, Zirbes C et al (2025) Outcomes after patellofemoral arthroplasty with the Arthrex iBalance-a third generation implant. Arthroplasty Today 33:101666. https://doi.org/10.1016/j.artd.2025.101666

Article  PubMed  PubMed Central  Google Scholar 

Elmubark M, Valkering KP, Tuinebreijer WE et al (2025) Patellofemoral joint (PFJ) arthroplasty in young patients: mid-term results and functional outcomes. Cureus 17:e93062. https://doi.org/10.7759/cureus.93062

Article  PubMed  PubMed Central  Google Scholar 

Feucht MJ, Lutz PM, Ketzer C et al (2020) Preoperative patellofemoral anatomy affects failure rate after isolated patellofemoral inlay arthroplasty. Arch Orthop Trauma Surg 140:2029–2039. https://doi.org/10.1007/s00402-020-03651-9

Article  PubMed  PubMed Central  Google Scholar 

Kim AG, Sanghvi P, Rizk AA et al (2024) Resilience as a psychiatric factor affecting outcomes after total joint arthroplasty: a systematic review. Arthroplasty 6:16. https://doi.org/10.1186/s42836-024-00240-8

Article  PubMed  PubMed Central  Google Scholar 

Halawi MJ, Cote MP, Singh H et al (2018) The effect of depression on patient-reported outcomes after total joint arthroplasty is modulated by baseline mental health: a registry study. J Bone Joint Surg Am 100:1735–1741. https://doi.org/10.2106/JBJS.17.01677

Article  PubMed  Google Scholar 

Zhang Z, Xing Q, Zhong Da et al (2022) The impact of psychological health on patient recovery after arthroplasty. Front Psychiatry 13:817716. https://doi.org/10.3389/fpsyt.2022.817716

Article  PubMed  PubMed Central  Google Scholar 

van der List JP, Chawla H, Zuiderbaan HA et al (2017) Survivorship and functional outcomes of patellofemoral arthroplasty: a systematic review. Knee Surg Sports Traumatol Arthrosc 25:2622–2631. https://doi.org/10.1007/s00167-015-3878-z

Article  PubMed  Google Scholar 

Ramos Guarderas P, Arteaga Guerrero G, Vargas Morante M et al (2025) Second-generation onlay patellofemoral prostheses: 14-year outcomes redefining isolated patellofemoral osteoarthritis management. Arthroplasty Today 34:101735. https://doi.org/10.1016/j.artd.2025.101735

Article  PubMed  PubMed Central  Google Scholar 

Omenås HN, Lindalen E, Furnes ON et al (2025) Patellofemoral arthroplasty-patient demographics and revision causes compared with total and medial unicompartmental knee arthroplasty: long-term follow-up data from the Norwegian Arthroplasty Register. Acta Orthop 96:671–676. https://doi.org/10.2340/17453674.2025.44593

Article  PubMed  PubMed Central  Google Scholar 

Anatone AJ, Uppstrom TJ, Fletcher C et al (2023) Patellofemoral arthroplasty conversion to total knee arthroplasty: an updated retrieval analysis and clinical outcomes. Knee 43:28–33. https://doi.org/10.1016/j.knee.2023.04.019

Article  PubMed  Google Scholar 

Dahm DL, Kalisvaart MM, Stuart MJ et al (2014) Patellofemoral arthroplasty: outcomes and factors associated with early progression of tibiofemoral arthritis. Knee Surg Sports Traumatol Arthrosc 22:2554–2559. https://doi.org/10.1007/s00167-014-3202-3

Article  PubMed  Google Scholar 

Hernigou P, Caton J (2025) Patellofemoral arthroplasty and chondrocalcinosis: a twenty year follow-up. Int Orthop 49:2811–2818. https://doi.org/10.1007/s00264-025-06663-5

Article  PubMed  Google Scholar