Table 6 Comparison of the ability to kneel among patients with patellar resurfacing vs. non-resurfacing
From: Patellar resurfacing and kneeling ability after total knee arthroplasty: a systematic review
Study | Year | Assessment of kneeling | Ability to kneel | Significance | P = value | |
|---|---|---|---|---|---|---|
Resurfaced (PR) | Non-resurfaced (NPR) | |||||
Huish Jr et al. [23] | 2020 | Self-reported | 56 (39%) | 28 (64%) | Significant | P = 0.04* PR 95% CI (0.26–0.52) NPR 95% CI (0.47–0.82) |
Rooks et al [24] | 2020 | Self-reported | Can kneel = 69 (29%) | Can kneel = 54 (30%) | Not significant | NR |
Limited kneeling = 56 (23%) | Limited kneeling = 35 (20%) | Not significant | NR | |||
Cannot kneel = 117 (48%) | Cannot kneel = 89 (50%) | Not significant | NR | |||
Sangoi et al. [25] | 2020 | Self-reported-OKS (Q5 + Q7 + Q12) | Median (range) | Median (range) | NR | NR |
Preop = 3 (0–12) | Preop = 3 (1–11) | |||||
Postop = 8 (2–12) | Postop = 6.5 (3–11) | |||||
Change = Significant (P = 0.039) |  | |||||
Wilding et al. [26] | 2019 | Clinical assessment | Able to kneel = 33 (79%) | Able to kneel = 26 (46%) | Significant | P < 0.01* PR 95% CI (0.66–0.91) NPR 95% CI (0.33–0.59) |
Unable to kneel = 9 (21%) | Unable to kneel = 31 (54%) | |||||
Implant design–PCL Sacrificed | Implant design–PCL Sacrificed | Not significant | P = 0.34 | |||
Able to kneel = 17 (68%) | Able to kneel = 10 (42%) | |||||
Unable to kneel = 8 (32%) | Unable to kneel = 14 (58%) | |||||
Implant design–PCL Retained | Implant design–PCL Retained | Not significant | P = 0.06 | |||
Able to kneel = 16 (94%) | Able to kneel = 16 (48%) | |||||
Unable to kneel = 1 (6%) | Unable to kneel = 17 (52%) | |||||
Albrecht et al. [27] | 2016 | Self-reported—KOOS (SP5) | Mean (SD) | Mean (SD) | Not significant | P = 0.72 |
2.22 (1.60) | 1.45 (1.54) | |||||
Baker et al. [28] | 2014 | Self-reported—OKS (Q7) | Mean (95% CI) | Mean (95% CI) | Significanta | P < 0.01* |
Preop = 0.75 (0.73 to 0.77) | Preop = 0.82 (0.81 to 0.83) | |||||
Postop = 1.36 (1.33 to 1.39) | Postop = 1.41 (1.39 to 1.43) | Significanta | P < 0.01* | |||
Change = 0.61 (0.58 to 0.64) | Change = 0.59 (0.57–0.61) | Not significant | P = 0.29 | |||
Garneti et al. [29] | 2008 | Self-reported | Able to kneel = 21 (31%) | Able to kneel = 17 (31%) | Not significant | P = 0.09 |
Palmer et al. [30] | 2002 | Clinical assessment | Able to kneel = 26 (84%) | Able to kneel = 38 (67%) | Not significant | P = 0.1 |
Unable to kneel = 5 (16%) | Unable to kneel = 19 (33%) | |||||