Table 1.
Details of the included studies
| Study | Year | Level of evidence |
Data points |
Number of TKAs |
Implant | M/F | Age (years), mean |
Followup (years), mean |
|---|---|---|---|---|---|---|---|---|
| Aggarwal & Agrawal [1] | 2013 | II | AE | |||||
| Fixed bearing | 27 | Duracon™ | 4/23 | 54.6 | 5.5 | |||
| Rotating platform | 29 | Scorpio® Plus Single Axis | 5/24 | 60 | 5.6 | |||
| Ball et al. [2] | 2011 | II | AE, AKS, SF-12 |
|||||
| Fixed bearing | 42 | Scorpio® PS | 18/23 | 64 | 4.0 | |||
| Rotating platform | 51 | Scorpio® Plus Single Axis | 22/28 | 64.9 | 4.0 | |||
| Bhan et al. [3] | 2005 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 32 | Insall-Burstein II | 10/22 | 63 | 6.0 | |||
| Rotating platform | 32 | LCS® RP | 10/22 | 63 | 6.0 | |||
| Chen et al. [7] | 2013 | II | HSS, ROM | |||||
| Fixed bearing | 97 | Genesis II™ & PFC Sigma® | 23/70 | 64.4 | 2.7 | |||
| Rotating platform | 106 | PFC Sigma® RP | 20/82 | 67.6 | 2.7 | |||
| Chiu et al. [8] | 2001 | II | AKS, ROM | |||||
| Fixed bearing | 16 | AMK | 2/14 | 68 | 2.0 | |||
| Rotating platform | 16 | LCS® RP | 2/14 | 68 | 2.0 | |||
| Evans et al. [10] | 2006 | III | AE, Rev, ROM |
|||||
| Fixed bearing | 100 | PFC Sigma® | 34/66 | 67.7 | 2.0 | |||
| Rotating platform | 113 | PFC Sigma® RP | 51/62 | 63.4 | 2.0 | |||
| Hanusch et al. [11] | 2010 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 55 | PFC Sigma® | 33/22 | 69.4 | 1.1 | |||
| Rotating platform | 50 | PFC Sigma® RP | 20/30 | 70 | 1.1 | |||
| Harrington et al. [12] | 2009 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 72 | PFC Sigma® | 22/50 | 63.3 | 2.0 | |||
| Rotating platform | 68 | PFC Sigma® RP | 28/40 | 63.7 | 2.0 | |||
| Hasegawa et al. [13] | 2009 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 25 | PFC Sigma® | 3/22 | 73 | 3.3 | |||
| Rotating platform | 25 | PFC Sigma® RP | 3/22 | 73 | 3.3 | |||
| Jawed et al. [20] | 2012 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 50 | PFC Sigma® | 10/40 | 64.46 | 3.3 | |||
| Rotating platform | 50 | PFC Sigma® RP | 10/40 | 64.46 | 3.3 | |||
| Kalisvaart et al. [22] | 2012 | II | AE, AKS, Rev, ROM |
|||||
| Fixed bearing | 76 | PFC Sigma® | 24/56 | 67.1 | 5.3 | |||
| Rotating platform | 76 | PFC Sigma® RP | 24/56 | 67.4 | 5.3 | |||
| Kim et al. [23] | 2012 | II | AE, AKS, HSS, ROM |
|||||
| Fixed bearing | 40 | NexGen® LPS Flex | 1/39 | 66 | 2.5 | |||
| Rotating platform | 40 | PFC Sigma® RP-F | 2/38 | 68 | 2.6 | |||
| Lizaur-Utrilla et al. [25] | 2012 | II | AKS, Rev, ROM, SF-12 |
|||||
| Fixed bearing | 58 | Multigen Plus | 11/47 | 73.9 | 2.5 | |||
| Rotating platform | 61 | Trekking® MB | 14/47 | 74.6 | 2.5 | |||
| Luring et al. [26] | 2006 | III | AKS, ROM | |||||
| Fixed bearing | 20 | PFC Sigma® | 6/14 | 69 | 2.0 | |||
| Rotating platform | 20 | PFC Sigma® RP | 6/14 | 67 | 2.0 | |||
| Rahman et al. [34] | 2009 | II | AE, ROM, SF-12 |
|||||
| Fixed bearing | 27 | PFC Sigma® | 9/18 | 62 | 3.3 | |||
| Rotating platform | 27 | PFC Sigma® RP | 10/14 | 62.6 | 3.6 | |||
| Shemshaki et al. [36] | 2012 | II | AE, AKS, Rev |
|||||
| Fixed bearing | 150 | PFC Sigma® | 48/102 | 70 | 5.0 | |||
| Rotating platform | 150 | PFC Sigma® RP | 60/90 | 68 | 5.0 | |||
| Tibesku et al. [39] | 2011 | II | HSS, ROM | |||||
| Fixed bearing | 17 | Genesis II™ | 5/12 | 66 | 2.0 | |||
| Rotating platform | 16 | Genesis II™ MB | 7/9 | 65 | 2.0 |
Level of evidence = Oxford Centre for Evidence-based Medicine determination [15], Level II = lesser-quality randomized controlled trial or prospective comparative study; Level III = retrospective comparative study; AE = Adverse events (complications), AKS = American Knee Society, HSS = Hospital for Special Surgery knee score, Rev = revisions, SF-12 = Short Form-12; Duracon™ (Stryker, Kalamazoo, MI, USA); Scorpio® (Stryker, Kalamazoo, MI, USA); Insall-Burstein II (Zimmer Inc, Warsaw, IN, USA); NexGen® (Zimmer Inc, Warsaw, IN, USA); LCS® RP (DePuy Synthes, Warsaw, IN, USA); Genesis™ (Smith & Nephew Inc, Memphis, TN, USA); PFC Sigma® (DePuy Synthes, Warsaw, IN, USA); AMK (Depuy, Warsaw, IN, USA); MultiGen (Lima Corporate, Udine, Italy); Trekking® (SAMO, Bologna, Italy).