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Table 2 Study characteristics of the included articles

From: Effectiveness and therapeutic validity of physiotherapeutic exercise starting within one year following total and unicompartmental knee arthroplasty for osteoarthritis: a systematic review

 

Participants

Intervention group

Control group

Results

Author (year, country)

Study groups: N

Agea

Sex (m/f)

Type

Follow-upb

Typec

Settingd (supervision)e

Durationb (frequency)b

Intensityb,f

Typeb

Settingd (supervision)e

Durationb (frequency)b

Intensityb,f

Joint & muscle functiong

Functional performanceg

Participationg

Anneli (2017, Finland) [32]

IG: 53

CG: 55

IG: 69 ± 8

CG: 69 ± 9

IG: 23/30

CG: 19/36

TKA

14 m

F + S

HB; LB (P)

12 m (0-3w: 1x/d; 3w-12 m: 3x/w)

0w-3w: 10–15 reps; 3w-12 m: 15 reps

F + S

H; LB (N)

NR (1-2x/d)

10–15 reps

 = /↑

 = /↑

 = 

Bade (2017, US) [33]

IG 84

CG: 78

IG: 63 ± 8

CG: 64 ± 7

IG: 39/45

CG: 34/44

TKA

12 m

F + S

O/HB; LB (P)

11w (0-6w: 3x/w; 7-12w: 2x/w)

2 × 8 reps, 45 min

F + S

O/H; LB (P)

11w (0-6w: 3x/w; 7-12w: 2x/w)

45 min, 2 × 10 reps

 = 

 = 

 = /↑

Baireddy (2020, India) [34]

IG: 20

CG: 20

IG: 59.1 ± 5.6

CG: 58,1 ± 5.9

NR

TKA

6 m

F + S

O; LB (Y)

NR (NR)

NR

F

O; LB (Y)

NR (NR)

NR

NR

NR

NR

Barker (2020, UK) [67]

IG: 309

CG: 312

IG: 70.67 ± 8.01

CG: 70.18 ± 8.14

IG: 125/184

CG: 125/187

TKA + UKA

12 m

F + S

HB; LB (Y)

NR (7 sessions)

S: 2–3 × 6–12 reps; B: 2–3 × 3 reps

F + S

O; LB (Y)

NR (1–6 sessions)

NR

NA

 = /↑

 = 

Barker (2021, UK) [68]

IG: 309

CG: 312

IG:70.67 ± 8.01

CG:70.18 ± 8.14

IG: 125/184

CG: 125/187

TKA + UKA

12 m

F

HB; LB (P)

NR (NR)

NR

NR

NR (NR)

NR (NR)

NR

 = /↓

NA

 = 

Bruun-Olsen (2013, Norway) [35]

IG: 29

CG: 28

IG: 68 ± 8

CG: 69 ± 10

IG: 11/18

CG: 14/14

TKA

9 m

F

O; LB (Y)

6-8w (12 sessions)

70 min

F + S

O; LB (Y)

6-8w (2x/w)

40 min

 = 

 = /↑

Chow (2010, China) [36]

IG1: 32

IG2: 35

CG: 33

IG1: 67.10 ± 8.02

IG2: 69.95 ± 7.96

CG: 70.10 ± 6.45

IG1: 7/23

IG2: 7/32

CG: 3/36

TKA

2w

F

I; LB (Y)

2w (5x/w)

Stretch 20 s, rest 10 s

F

I; LB (Y)

2w (5x/w)

Stretch 20 s, rest 10 s

 = 

NA

NA

Codine (2004, France) [37]

IG: 30

CG: 30

IG: 74.6 ± 13

CG: 71.1 ± 15

IG: 14/16

CG: 9/21

TKA

40d

S

I; LB (NR)

3w (5x/w)

15 min

F + S

I; LB (NR)

NR

NR

 = /↑

 = 

NA

Eisermann (2004, Austria) [38]

IG: 75

CG: 72

IG: 70.2

CG:69.7

IG: 23/45

CG: 14/54

TKA

6 m

F + S

I; LB (P)

3-4w (3-5x/w)

30 min

NR

I; LB (Y)

3-4w (3-5x/w)

30 min

 = 

 = 

NA

Frost (2002, UK)

IG: 23

CG: 24

IG: 71.5 ± 5.4

CG: 71.1 ± 5.6

IG: 12/11

CG: 12/12

TKA

12 m

F

HB; LB (N)

NR (NR)

NR

F + S

H; LB (N)

NR

NR

 = 

 = 

 = 

Han (2015, Australia) [40]

IG: 194

CG:196

IG: 64.1 ± 6.5

CG:65.4 ± 6.0

IG: 86/108

CG: 92/104

TKA

6w

F + S

HB; LB (N)

6w (3x/d)

10 reps

NR

O; LB (Y)

6w (NR)

NR

 = 

 = 

 = 

Hardt (2018, Germany)

IG: 33

CG: 27

IG:63.3 ± 8

CG:67.6 ± 10.2

IG: 15/18

CG: 11/16

TKA

7d

S

I; LB (N)

7 ± 1d (3-5x/d)

5 min

F

I; LB (Y)

7 ± 1d (NR)

NR

 = /↑

 = /↑

 = /↑

Hsu (2019, China) [42]

IG: 20

CG: 20

IG:72.0 ± 1.8

CG: 69.5 ± 1.5

NR

TKA

36w

S

O; LB (Y)

24w (3x/w)

3 × 12 reps + 1-4w: 60% 1RM; 5-8w: 70% 1 RM; 9-24w: 12 m 80% 1RM

F + S

H; LB (N)

NR (NR)

NR

 = 

 = 

 = /↑

Husby (2018, Norway) [43]

IG: 21

CG: 20

IG: 61

CG: 63

IG: 10/11

CG: 8/12

TKA

12 m

S

O/HB; LB (P)

8w (3x/w)

4 × 5 reps,with load 80–90% of 1 RM, 30 min

NR

O/H; LB (P)

8d-10w (NR)

NR

 = /↑

 = 

Jacksteit (2021, Germany) [44]

IG_uni:22

IG_bi:22

CG: 22

IG_uni:67.36 ± 9.61

IG_bi:68.55 ± 8.94

CG: 68.45 ± 9.07

IG_uni: 9/13

IG_bi: 8/14

CG: 8/14

TKA

3 m

F + S

I; LB (Y)

8d (IG_uni: 3x/d; IG_bi: 3x/d affected + 1x/d healthy)

30 min

F

I; LB (Y)

8d (3x/d)

30 min

 = 

 = 

 = /↑

Jørgensen (2017, Denmark) [66]

IG: 31

CG: 24

IG: 64.8 ± 8.3

CG: 64.4 ± 8.7

IG:16/15 CG:10/14

UKA

12 m

S

O/HB; LB (P)

8w (2x/w + 5x/w)

2–4 × 8-12RM

F

H;LB (P)

8w (3x/w)

10 reps

 = 

 = 

NR

Karaman (2017, Turkey) [45]

IG: 23

CG: 23

IG: 67.6 ± 7.0

CG: 70.1 ± 6.9

NR

TKA

6w

S

HB; LB (Y)

6w (NR)

NR

S

I/H; LB (Y)

6w (NR)

Isometric: 10 reps/h; isotonic: 3 × pd 5 reps

NA

Lenguerrand (2020, UK) [46]

IG: 89

CG: 91

IG: 69 ± 9

CG: 69 ± 9

IG: 39/50

CG: 42/49

TKA

12 m

S

O; LB (Y)

6w (1x/w)

1 h

F

O/H; LB (Y)

6w (NR)

NR

 = /↑

NA

NA

Lenssen (2006, Netherlands) [47]

IG: 21

CG: 22

IG: 70 ± 8.5

CG: 67 ± 7

IG: 6/15

CG: 5/17

TKA

3 m

F + S

I; LB (Y)

4d (2x/d)

20 min

F + S

I; LB (Y)

4d (1x/d)

20 min

 = 

 = 

 = 

Li (2019, China) [52]

IG: 54

CG: 53

IG: 69.6 ± 4.3

CG: 68.5 ± 3.5

IG:26/28

CG:24/29

TKA

14w

S

HB; LB (P)

12w (5 × pw)

45 min

S

LB (NR)

12w (5x/w)

45 min

 = 

 = /↑

Liao (2013, Taiwan) [50]

IG: 65

CG: 65

IG: 71.38 ± 6.57

CG: 72.94 ± 7.33

IG: 18/37

CG: 12/46

TKA

8w

F + B

O; LB (P)

8w (NR)

60 min

F

O; LB (P)

8w (NR)

90 min

NA

Liao (2015, Taiwan)

IG: 65

CG: 65

IG:71.43 ± 6.33

CG: 73.40 ± 7.04

IG: 16/49

CG: 23/42

TKA

32w

B

LB (P)

8w (3x/w)

NR

F

I; LB (Y)

8w (3x/w)

NR

NA

Liao, Chiu (2020, Taiwan) [48]

IG: 20

CG: 20

IG:72.22 ± 7.75

CG: 69.79 ± 6.72

NR

TKA

16w

S

HB; LB (P)

3 m (2x/w)

3 × 10–20 reps, 55 min

F

O; LB (NR)

NR (NR)

NR

NR

 = 

Liao, Tsauo (2020, Taiwan) [51]

IG: 30

CG: 30

IG: 72.22 ± 7.75

CG: 69.79 ± 6.72

IG: 0/30

CG: 0/30

TKA

4 m

S

HB; LB (P)

4 m (2x/w)

3 × 10–20 reps, 60 min

F

O; LB (Y)

4 m (2x/w)

60 min

NA

 = /↓/↑

McAvoy (2009, UK) [53]

IG: 15

CG:15

NR

IG:7/8

CG: 6/6

TKA

6 m

F + S

O; LB/WB (Y)

6w (2x/w)

60 min

F + S

O;LB (Y)

6w (2x/w)

60 min

 = /↑

NA

 = 

Mockford (2008, UK) [54]

IG: 71

CG: 72

IG: 69.4

CG: 70.9

IG: 25/46

CG:30/42

TKA

12 m

F + S

O/HB; LB (Y)

NR (9 sessions)

NR

NR

H; LB(Y)

NR

NR

 = 

NA

 = 

Moffet (2004, Canada) [55]

IG: 38

CG: 39

IG: 66.7 ± 8.7

CG: 86.7 ± 8.3

IG: 14/24

CG: 17/22

TKA

8 m

F + S + A

O/HB; LB (P)

6-8w (12 sessions)

60–90 min; 8–25 reps per modality

NR

H; LB (P)

2-4 m (7–10 visits)

NR

NA

 = /↑

 = /↑

Piva (2010, US) [56]

IG: 21

CG: 22

IG: 67 ± 6

CG: 70 ± 10

IG: 13/5

CG: 12/5

TKA

6 m

F + S + A

O/HB; LB (Y)

6w (2x/w)

10–20 reps

F + S + A

O/H; LB (Y)

6w (2x/w)

10–20 reps

NA

 = 

 = 

Rahmann (2009, Australia) [57]

IG1: 24

IG2: 21

CG: 20

IG1: 69.4 ± 6.5

IG2: 69.0 ± 8.9

CG: 70.4 ± 9.2

IG1: 5/12

IG2: 10/11

CG: 7/12

TKA

180d

F + S

I; LB/WB (Y)

NR (1x/d)

40 min, 10–30% WB

F + S

I; LB (Y)

NR (1x/d)

40 min

NA

 = /↑

 = 

Roig-Casasus (2018, Spain) [58]

IG: 19

CG: 24

IG: 74.8 ± 4.0

CG: 72.1 ± 4.5

IG: 5/12

CG: 7/13

TKA

10w

F + S

O;LB (Y)

4w (5x/w)

80 min

F + S

O; LB (Y)

4w (5x/w)

60 min

NA

 = /↑

NA

Sano (2018, Japan) [59]

IG: 37

CG:38

IG: 75.0 ± 6.4

CG:75.8 ± 5.8

IG: 7/30

CG:8/30

TKA

3w

F + S

I; LB (Y)

3w (5x/w)

5 reps

F + S

I;LB (Y)

3w (5x/w)

5 reps

 = 

 = 

Schache (2019, Australia) [60]

IG: 54

CG: 51

IG: 70 ± 7

CG: 69 ± 7

IG: 15/39

CG: 21/30

TKA

26w

S

I; LB (Y)

6w (5x/w)

60 min

F

I; LB (Y)

6w (5x/w)

60 min

 = 

 = 

 = /↑

Shabbir (2017, Pakistan) [61]

IG: 31

CG: 33

IG: 60 ± 10

CG: 72.1 ± 6.3

NR

TKA

4w

F

HB; LB (Y)

NR (NR)

NR

S

O; LB (Y)

NR (1x/d, 5x/w)

NR

 = 

NA

 = 

Teissier (2020, France) [62]

IG: 10

CG: 10

IG + CG: (72.1 ± 6.3)

8/12

TKA

4w

S

I; LB (Y)

4w (10x/w, 2x/d)

3–4 × 5–10 reps

F

O; LB (NR)

NR (NR)

3–5 × 5–10 reps

 = 

 = 

Torpil (2022, Turkey) [63]

IG: 21

CG: 20

IG: 55.10 ± 5.95

CG: 55.31 ± 5.45

IG: 4/15

CG: 5/14

TKA

12d

F

HB; LB (Y)

12d (1x/d)

45 min

NR

NR (NR)

NR (NR)

NR

NA

NA

 = 

Vuorenmaa (2014, Finland) [64]

IG: 53

CG: 55

IG: 69 ± 8

CG: 69 ± 9

IG: 30/23

CG: 36/19

TKA

12 m

F + S

HB; LB (P)

12 m (3x/w)

2–3 × 10–20 reps

NR

NR (NR)

NR (NR)

NR

 = /↑

 = /↑

 = 

Warner (2020, Pakistan) [65]

IG: 22

CG: 22

IG + CG:

62.93 ± 9.146

15/29

TKA

6w

S

I; LB (Y)

6w (6x/w)

10 × 2 reps

S

LB (Y)

6w (NR)

NR

NA

NA

  1. IG intervention group, CG control group, NR not reported, NA not applicable
  2. aAge (years) is shown as mean ± SD or only mean
  3. bd = days; w = weeks; m = months; y = year
  4. cType: F = functional; S = strengthening; B = balance; A = aerobic/endurance
  5. dSetting: I = inpatient; O = outpatient; HB = home-based; LB = land-based; WB = water-based
  6. eSupervision: Y = yes; P = partially; N = no
  7. fIntensity: min = minutes; h = hour; reps = repetitions; RM = repetition maximum
  8. gEffect of intervention: ↑ significant difference favouring IG; ↓ significant difference favouring CG; = no significant difference between IG and CG; a combination means that more results were found