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Table 1 Characteristics of studies

From: Patellar resurfacing versus nonresurfacing in total knee arthroplasty: an updated meta-analysis of randomized controlled trials

First author Journal Year of publication Number of knees (RS/NRS) Mean age (years) (RS/NRS) Lost to follow-up (knees) Mean years of follow-up Outcomes Level of evidence Type of knee prosthesis
Feller [6] JBJS 1996 19 19 70.8 2 2 HSS, patellar score, pain, reoperation I PCA (HOWMEDICA)
Kajino [7] JBJS 1997 26 26 56.1 0 6.6 HSS, pain, muscle strength, patellar tilt I Yoshino-Shoji (Biomet)
Schroeder-Boersch [8] Arch Orthop Trauma Surg 1998 20 20 73/72.2 0 2 KSS, AKP, radiographs, reoperation I Duracon (HOWMEDICA)
Newman [9] Knee 2000 42 42 72/71.2 0 5 AKP, reoperation I Kinematic (HOWMEDICA)
Barrack [10] JBJS 2001 47 46 66.2 11 5–7 KSS, AKP, ROM, satisfaction, reoperation I Miller-Galante II (ZIMMER)
Wood [11] JBJS 2002 92 128 73.7/73.7 22 4 KSS, AKP, reoperation, satisfaction, patellar tilt I Miller-Galante II (ZIMMER)
Mayman [12] JOA 2003 50 50 72/68 29 10 KSS, AKP, reoperation, satisfaction I AMK (Depuy)
Waters [13] JBJS 2003 243 231 69.1 0 5.3 KSS, AKP, satisfaction, ROM, radiographs I Press-fit condylar prosthesis (Johnson & Johnson)
Burnett [4] CORR 2004 42 48 71/69 0 10 KSS, AKP, ROM, satisfaction I AMK (Depuy)
Gildone [14] Acta Orthop Belg 2005 28 28 73.6/74.6 0 2 KSS, daily activities, ROM, satisfaction, AKP I NexGen (ZIMMER)
Campbell [15] JBJS 2006 46 54 71/73 42 10 WOMAC, AKP, radiographs, KSS I Miller-Galante II (ZIMMER)
Myles [16] Clinical Biomechanics 2006 25 25 70 8 2 KSS, WOMAC, VAS, reoperation I LCS rotating platform knee replacement (DePuy)
Burnett [17] CORR 2007 28 28 78 8 10 AKP, ROM, reoperation I Miller-Galante II (ZIMMER)
Smith [18] JBJS 2008 73 86 71.9/71.2 7 4 KSS, AKP, satisfaction, radiographs, reoperation I Profix total knee system (Smith & Nephew)
Burnett [19] JBJS 2009 58 60 65.3/67.1 40 10 ROM, KSS, AKP, satisfaction II Miller-Galante II (ZIMMER)
Breeman [20] JBJS 2011 861 854 70/70 405 5 Oxford score, SF-12, EuroQol-5d, cost-effective, reoperation I No mention
Beaupre [21] BMC Research Notes 2012 21 17 64.9/62 15 10 WOMAC, reoperation, ROM, Rand 36 score I Profic total knee system
Liu [22] Knee 2012 68 64 67.5/68 12 7 KSS, AKP, ROM, radiographs, reoperation I Press-fit condylar prosthesis (DePuy)
Ferguson (FB)
Feguson (MB) [23]
Knee 2014 88
89
88
87
69.8
70.2
13
13
2 Oxford score, ROM, SF-12 score, reoperation I Press-fit condylar prosthesis (DePuy)
Murray [24] Health Technology Assessment 2014 816 798 70/70 824 10 Oxford score, EuroQol-5d, SF-12 score, reoperation I No mention
Sreehari [25] AO Orthopaedics 2014 75 60 68.1/65.8 0 5 KSS, AKP, ROM, reoperation I No mention
Roberts [26] JOA 2015 178 172 70.2/71.3 236 10.4 KSS, ROM, reoperation, AKP, satisfaction I DePuy Sigma
Ali [27] Acta Orthopaedica 2016 33 36 68/69 5 6 VAS, KOSS, satisfaction, reoperation I Triathlon CR
Aunan [28] Acta Orthopaedica 2016 63 66 70/69 1 3 KOSS, KSS, Oxford score, VAS, satisfaction, reoperation I NexGen (ZIMMER)
Vukadin [29] Acta Chirurgiae Orthopaedicae 2017 30 29 68.1/66 1 2 KSS, Oxford score, reoperation I Unknown
Dong [30] JOA 2018 48 48 67.7 6 3 KSS, Feller score, AKP, reoperation I Posterior cruciate stabilizing total knee prostheses (Smith & Nephew)
Kaseb [31] ABJS 2018 24 26 64.8 0 0.5 KSS, AKP, WOMAC, SF-36 score, ROM, VAS, reoperation I Profix (ZIMMER)
Ha [32] International Orthopaedics 2019 60 60 65.2 12 5 KSS, AKP, satisfaction, reoperation I Scorpoo NRG knee prosthesis (Stryker)
Kaseb [33] ABJS 2019 29 44 68.1/65.75 0 8.68 months KSS, KOSS I NexGen fixed bearing knee prosthesis (ZIMMER)
Koh [34] KSSTA 2019 49 49 70 0 5 AKP, forgotten score, ROM, WOMAC, reoperation, Feller score, radiograph I Posterior stabilized knee system (Lospa)
Thiengwittayaporn [35] JOA 2019 41 39 68.2/68.2 4 1 KSS, AKP, Oxford score, ROM, patellar score, patellar tilt I Legion PS (Smith & Nephew)
Raaij [36] J Knee Surg 2020 21 21 Unknown 0 2 HSS, KSS, KOSS, reoperation I Unknown
  1. RS Resurfacing, NRS Nonresurfacing, AKP Anterior knee pain, KSS Knee Society Score, HSS Hospital for special surgery, ROM Range of motion, WOMAC Western Ontario McMaster Osteoarthritis Index, KOOS Knee Injury and Osteoarthritis Outcome Score