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Table 1 Main demographic characteristics of patients recruited in studies included in the systematic review

From: Comparison between gaits after a medial pivot and posterior stabilized primary total knee arthroplasty: a systematic review of the literature

Author and Publication Year

LoE

MINORS Score

MP TKA

PS TKA

Healthy Knees

Gait Analysis Protocol

min FU

TKA design

n

Age (Mean value ± SD/Range) (y.o.)

TKA design

n

Age (Mean value ± SD/Range) (y.o.)

n

Age (Mean value ± SD/Range) (y.o.)

Stolarczyk et al.,2022 [27]

III

20

K-Mod (Gruppo Bioimpianti)

28

68 ± 6.5

NexGen (Zimmer)

28

71 ± 5

20

59.4 ± 7.9

Three-dimensional gait analysis with BTS SMART device (BTS Bioengineering, Quincy, MA, USA)

2 years

Ghirardelli et al., 2021 [28]

III

14

Persona MC (Zimmer)

6

63.8 ± 9.2

Persona PS (Zimmer)

6

59.4 ± 7.9

/

/

3D kinematic analysis using a multicamera optoelectronic system (Qualisys AB, Gothenburg, Sweden)

9 months

Tan et al., 2021 [29]

III

16

MP (Evolution, MicroPort Orthopedics)

12

70.8 ± 3.9

Genesis II (Smith & Nephew)

12

67.7 ± 4.9

/

/

Walk on a treadmill under a dual fluoroscopic imaging system (BV Pulsera, Philips, Andover, MA, USA)

1 year

Bianchi et al., 2020 [30]

III

12

MP (Evolution, MicroPort Orthopedics)

16

72 (68–76)

Persona PS (Zimmer)

16

71 (69–74)

/

/

Treadmill walk with a video-recording device (Walker View 3.0, Tecnobody, Dalmine, Italy)

1 year

Miura et al., 2020 [31]

II

16

MP (Evolution, MicroPort Orthopedics)

20

72.6 ± 5.5

Persona PS (Zimmer)

20

73.1 ± 5.5

10

27.8 ± 4.7

3D motion analysis system consisted of 8 infrared cameras (ProReflex, Qualisys AB Inc., Gothenburg, Sweden) and 2 force plates (OR6; Advanced % Technology Inc., Watertown, MA, USA)

1 year

Esposito et al., 2020 [32]

III

12

GMK Sphere (Medacta)

20

73.3 ± 3.5

Persona PS (Zimmer)

20

70.5 ± 4.7

20

32.1 ± 6.7

Motion tracking with eight infrared cameras (SMART-DX 700, BTS Bioengineering, Milan, Italy)

1 year

Gray et al., 2020 [33]

II

14

GMK Sphere (Medacta)

26

67.3 ± 6.4

GMK PS (Medacta)

23

66.8 ± 7.3

/

/

3D motion data were recorded using a 9-camera motion capture system (VICON Motion Systems, Ltd, Oxford, UK)

Ground reaction forces were measured using two portable strain-gauged force plates (AMTI Accugait, Watertown, MA, USA)

6 months

Benjamin et al., 2018 [34]

II

15

Saiph Knee (MatOrtho)

45

62.4 (54–71)

Triathlon (Stryker)

45

64.8 (58–73)

/

/

Instrumented treadmill with force plates (Kistler Gaitway, Kistler Instrument Corporation, Amherst, NY, USA)

1 year

Papagiannis et al., 2016 [35]

III

12

MP fixed-bearing prosthesis

(Advance, Wright Medical)

24

70.3 ± 1.9

/

22

72.9 ± 1.5

/

/

Eight optoelectronic cameras (BTS) integrated with two force plates (Kistler Gaitway, Kistler Instrument Corporation, Amherst, NY, USA)

1 year

  1. MP Medial pivot, PS Posterior stabilised, TKA Total knee arthroplasty, LoE levels of evidence, MINORS score Methodological index for non-randomized studies score, N Number of evaluation cases, SD Standard deviation, y.o. years old, Min Minimum, FU Follow-up, MC Medial congruent, FU Follow-up; /: not reported