Table 2.
Patient demographics at surgery.
| Author (Year) |
Implant System | Number of Knees | Mean Age, Years (Range) or (SD) |
Gender, Female (%) |
Mean BMI, kg/m2, (Range) or (SD) |
Mean Follow-Up Time, Months (SD) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Demange (2015) [27] | OTS | 20 | 56 (6.9) | ns | 52.6 | 32.7 (7.2) | 75 (20) | |||
| PSI | 33 | 59 (10.9) | 65.6 | 28.7 (5.3) | 37 (8.6) | |||||
| Mayer (2020) [28] |
OTS | 20 | 61.4 (8.4) | 45 | 31.3 (5.5) | 18 | ||||
| PSI | 20 | 62.9 (9.2) | 45 | 29.7 (5.6) | 18 | |||||
| Arbab (2018) [16] |
OTS | 88 | ||||||||
| PSI | 113 | |||||||||
| Buch (2019) [17] |
OTS | 30 | 57.2 (34–67) | ns | 53 | ns | 31 (22–38) | ns | 28 | |
| PSI | 32 | 57.3 (42–72) | 41 | 33.4 (24–53) | 28 | |||||
| Culler (2017) [18] |
OTS | 122 | 68.3 (9.5) | ns | 43.9 | ns | 32.3 (7.8) | ns | ||
| PSI | 126 | 69.7 (8.4) | 41.9 | 30.8 (6.5) | ||||||
| Ivie (2014) [19] |
OTS | 100 | ||||||||
| PSI | 100 | |||||||||
| Meheux (2019) [20] | OTS | 41 | 63 (10.1) | 34.4 (7.1) | ** | 37.2 (18) | ||||
| PSI 1 | 77 | 62.7 (8.3) | 30.3 (4.5) | 37.2 (18) | ||||||
| PSI 1 | 36 | 62.8 (6.7) | 28.9 (5.2) | 37.2 (18) | ||||||
| O’Connor (2019) [21] | OTS | 3695 | ||||||||
| PSI | 739 | |||||||||
| Reimann (2019) [22] | OTS | 103 | 70.9 (7.1) | *** | 68.4 | ns | 31.4 (5.5) | ns | 33 (7.6) | *** |
| PSI | 125 | 65.5 (9.3) | 63.1 | 30.5 (5.2) | 27.5 (5.7) | |||||
| Schroeder (2019) [23] | PSI | 44 | 70.5 (57–87) | 40.9 | ns | 30.7 (22–49.1) | ||||
| Schwarzkopf (2015) [24] | OTS | 314 | 65 | ns | 65 | 32.11 | ns | |||
| PSI | 307 | 61.4 | 60.2 | 30.85 | ||||||
| Wheatley (2019) [25] | OTS | 124 | 70 (8.5) | * | 64.6 | ns | 30.3 (8.5) | 3 | ||
| PSI | 47 | 66.9 (7.7) | 61.7 | 30.3 (8.5) | 3 | |||||
| White and Ranawat (2016) [26] | OTS, CR | 42 | 59.8 (6.7) | ns | 66.7 | ns | 31.8 (5.5) | ns | 31.2 (8.4) | ns |
| OTS, PS | 11 | 53.9 (6.0) | * | 9.1 | ** | 34.4 (6.5) | ** | 27.6 (4.8) | ||
| PSI, CR | 21 | 59.1 (7.4) | 66.7 | 28.7 (4.8) | 28.8 (4.8) | |||||
Abbreviations: BMI: body mass index, kg: kilogram, m: meter, SD: standard deviation, OTS: off-the-shelf implants, PSI: patient-specific implants, CR: cruciate retaining, PS: posterior-stabilised, ns: no statistically significant difference * p < 0.05, ** p < 0.01, *** p < 0.001.