Table 1 Included and results of individual studies

Abrahamson, J. [1]

2020

III

Sweden

Retrospective

23.4

y

551

HAGOS, iHOT-12, HSAS

3

77

ARTHROSCOPIC

Aguilera-Bohórquez, B. [2]

2020

IV

Colombia

Retrospective

12

n

17

WOMAC

1

47

ARTHROSCOPIC

Atzmon, R. [3]

2019

III

Israel

Retrospective

50^a

n

64

HOS, mHHS, satisfaction

2

74

ARTHROSCOPIC

Avnieli, I. B. [4]

2020

III

Israel

Retrospective

24

y

133

HOS, mHHS, VAS satisfaction

2

62

ARTHROSCOPIC

Balazs, G. C. [5]

2018

II

USA

Prospective

1.5

n

59

HAGOS, iHOT-33, PCS, VAS pain

2

54

ARTHROSCOPIC

Barastegui, D. [6]

2018

IV

Spain

Retrospective

24

y

21

HOS (ADL + SS), mHHS, VAS pain

2

100

ARTHROSCOPIC

Bardakos, N. V. [7]

2008

III

England

Retrospective

12

n

71

mHHS

1

58

ARTHROSCOPIC

Basques, B. A. [8]

2019

III

USA

Retrospective

24

n

624

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

35

ARTHROSCOPIC

Beaulé, P. E[10]

2017

IV

Canada

Prospective

24.5

n

10

HOOS

1

100

ARTHROSCOPIC

Beaulé, P. E. [9]

2007

IV

Canada

Retrospective

36

y

34

SF-12, UCLA, WOMAC

1

53

OPEN

Beck, E. C. [12]

2019

III

USA

Retrospective

32.9

n

108

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

x

ARTHROSCOPIC

Beck, E. C. [14]

2020

III

USA

Retrospective

24

n

249

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

35

ARTHROSCOPIC

Beck, E. C. [16]

2020

IV

USA

Prospective

6

n

74

HOS (ADL + SS), iHOT-12

2

23

ARTHROSCOPIC

Beck, E. C. [17]

2020

III

USA

Retrospective

24

n

647

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

24

ARTHROSCOPIC

Beck, E. C. [15]

2020

III

USA

Retrospective

24

n

384

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

32

ARTHROSCOPIC

Beck, E. C. [11]

2020

III

USA

Retrospective

50

n

264

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

34

ARTHROSCOPIC

Beck, E. C. [13]

2019

III

USA

Retrospective

24

n

336

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

30

ARTHROSCOPIC

Beck, M. [18]

2004

IV

Switzerland

Retrospective

56.4

n

19

The Merle d'Aubigné and Postel hip score

1

74

OPEN

Bennett, A. N. [19]

2016

IV

England

Prospective

12

n

101

FAA, NAHS, VAS pain

1

75

ARTHROSCOPIC

Bolia, I. K. [20]

2019

III

USA

Retrospective

80^a

n

126

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction

2

57

ARTHROSCOPIC

Boone, G. R. [21]

2012

IV

USA

Retrospective

45.6

n

21

UCLA

0

64

OPEN

Briggs, K. K. [22]

2019

III

USA

Retrospective

61.2

n

230

HOS (ADL + SS), mHHS, SF12, VAS satisfaction, WOMAC, Tegner

3

x

ARTHROSCOPIC

Bryan, A. J. [23]

2016

III

USA

Retrospective

24

n

201

HOS (ADL + SS), mHHS

2

69

ARTHROSCOPIC

Byrd, J.W. [24]

2009

IV

USA

Prospective

16

n

207

mHHS

1

67

ARTHROSCOPIC

Byrd, J. W. [25]

2016

III

USA

Retrospective

37^a

n

108

mHHS

1

52

ARTHROSCOPIC

Byrd, J. W. [26]

2019

III

USA

Retrospective

18.9

n

42

iHOT, mHHS

2

52

ARTHROSCOPIC

Campoamor González, M. [27]

2020

III

Spain

Retrospective

6

n

57

HHS

1

68

INCLUDING BOTH

Cancienne, J. [28]

2019

III

USA

Retrospective

24

n

1102

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

35

ARTHROSCOPIC

Carreira, D. S. [29]

2018

IV

USA

Prospective

12

n

45

HOS (ADL + SS), mHHS, iHOT-12, SF-12

3

36

ARTHROSCOPIC

Casartelli N. [30]

2014

IV

Switzerland

Prospective

30

y

8

HOS (ADL + SS), satisfaction (1–5), pain change (1–5)

1

38

ARTHROSCOPIC

Catelli, D. S. [31]

2019

II

Canada

Prospective

24

n

11

HOOS

1

100

INCLUDING BOTH

Catelli, D. S. [32]

2019

II

Canada

Prospective

24

n

11

HOOS

1

100

INCLUDING BOTH

Cetinkaya, S. [33]

2016

III

Turkey

Retrospective

45.2

n

67

HOS, VAS pain

1

57

ARTHROSCOPIC

Chaharbakhshi, E. O. [34]

2019

III

USA

Retrospective

47^a

n

107

HOS (SS), iHOT-12, mHHS, NAHS, VAS pain, VAS satisfaction

4

66

ARTHROSCOPIC

Chahla, J. [36]

2019

III

USA

Retrospective

27.8

n

634

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

33

ARTHROSCOPIC

Chahla, J. [37]

2019

III

USA

Retrospective

24

n

600

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

36

ARTHROSCOPIC

Chahla, J. [35]

2019

iii

USA

Prospective

12

n

153

HOS (ADL + SS), HPSES, mHHS, VAS pain, VAS satisfaction

3

29

ARTHROSCOPIC

Chambers, C. C. [38]

2019

IV

USA

Retrospective

24

n

142

HOOS, mHHS, SF-12, VAS pain

2

51

ARTHROSCOPIC

Chiron, P. [39]

2012

IV

France

Prospective

26.4

y

108

HHS, MOS, NAHS, SF-36, satisfaction (1–5), VAS pain, WOMAC

3

85

MINIMALLY INVASIVE APPROACH

Chladek, P. [40]

2015

III

Czech Republic

Retrospective

40

n

100

NAHS, WOMAC

2

x

MINI-INVASIVE SURGERY AND OPEN

Cho, S. H. [41]

2015

IV

Korea

Retrospective

24

n

11

mHHS, UCLA

1

36

ANTERIOR MINI-OPEN (AMO) AND OPEN

Christensen, J. C. [43]

2019

III

USA

Retrospective

24

n

173

iHOT-12

1

0

ARTHROSCOPIC

clapp, I. M. [44]

2020

II

USA

Prospective

19.9

n

85

HOS (ADL + SS), mHHS, iHOT-12, PCS, TSK, VAS pain, VAS satisfaction,

3

25

ARTHROSCOPIC

Claßen, T. [45]

2016

II

Germany

Prospective

6

n

177

NAHS, WOMAC

2

46

ARTHROSCOPIC

Comba, F. [47]

2016

IV

Argentina

Prospective

91

n

42

mHHS, WOMAC

2

64

ARTHROSCOPIC

Cunningham, D. J. [48]

2017

II

USA

Prospective

1.5

n

62

iHOT-12, PCS, PHQ, VAS pain

1

33

ARTHROSCOPIC

Cvetanovich, G. L. [49]

2017

III

USA

Retrospective

31.2

n

348

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

42

ARTHROSCOPIC

Cvetanovich, G. L. [50]

2018

IV

USA

Prospective

24

n

386

HOS (ADL + SS), mHHS, VAS pain

2

39

ARTHROSCOPIC

Di Benedetto, P. [51]

2016

II

Italy

Prospective

12

n

65

mHHS, MHOT

2

x

ARTHROSCOPIC

Domb, B. G. [55]

2013

II

USA

Prospective

25.2

n

30

HOS (ADL + SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

20

INCLUDING BOTH

Domb, B. G. [52]

2018

III

USA

Retrospective

50

n

130

HOS (SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

28

ARTHROSCOPIC

Domb, B. G. [54]

2020

III

USA

Retrospective

24

n

148

HOS (SS), iHOT-12, mHHS, NAHS, SF-12, VAS pain, VAS satisfaction, VR-12

4

41

ARTHROSCOPIC

Domb, B. G. [53]

2014

III

USA

Retrospective

24

n

33

HOS (ADL + SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

64

ARTHROSCOPIC

Drager, J. [56]

2020

III

USA

Retrospective

12

n

346

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

28

ARTHROSCOPIC

Ellis, S. H. [57]

2020

iii

Australia

Retrospective

12

n

79

iHOT-33

1

42

ARTHROSCOPIC

Ernat, J. J. [59]

2019

IV

USA

Retrospective

12

n

182

mHHS, SANE, satisfaction score, VAS pain, VR-12, WOMAC

2

74

MINI-OPEN ARTHROSCOPIC-ASSISTED

Ernat, J. J. [58]

2015

IV

USA

Retrospective

43.2

n

93

mHHS, SANE, satisfaction, VAS pain, VR-12, WOMAC

2

70

MINI-OPEN ARTHROSCOPIC-ASSISTED

Espinosa, N. [60]

2007

III

Switzerland

Retrospective

24

n

52

The Merle d’Aubigne´-Postel score

1

x

OPEN

Essilfie, A. A. [61]

2020

II

USA

Prospective

24

n

126

mHHS, NAHS

2

67

ARTHROSCOPIC

Fabricant, P. D. [62]

2015

III

USA

Retrospective

21

n

243

HOS (ADL + SS), iHOT-33, mHHS

3

49

ARTHROSCOPIC

Ferro, F. P. [63]

2015

IV

USA

Retrospective

30

n

184

mHHS, SF-12, WOMAC

2

x

ARTHROSCOPIC

Fiorentino, G. [64]

2015

IV

Italy

Retrospective

36

n

38

mHHS, patient satisfaction

1

59

ARTHROSCOPIC

Flores, S. E. [65]

2018

II

USA

Prospective

12

n

58

HOOS, mHHS, SF-12, VAS pain

2

53

ARTHROSCOPIC

Flores, S. E. [66]

2020

II

USA

Prospective

24

n

131

HOOS, mHHS, SF-12, VAS pain

2

45

ARTHROSCOPIC

Flores, S. E. [67]

2018

II

USA

Prospective

12

n

122

HOOS, mHHS, SF-12, VAS pain

2

47

ARTHROSCOPIC

Foreman, S.C. [68]

2020

II

USA

Prospective

12

n

42

HOOS

1

64

ARTHROSCOPIC

Frank, R. M. [69]

2019

III

USA

Retrospective

31.2

y

330

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

100

ARTHROSCOPIC

Frank, R. M. [71]

2018

IV

USA

Retrospective

31.1

y

59

HOS (ADL + SS), mHHS VAS pain, VAS satisfaction

2

38

ARTHROSCOPIC

Frank, R. M. [70]

2016

II

USA

Prospective

33.6

n

150

HOS (ADL + SS), mHHS, VAS satisfaction

2

50

ARTHROSCOPIC

Fukui, K. [73]

2015

IV

USA

Retrospective

42

n

28

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction, WOMAC

3

57

ARTHROSCOPIC

Fukui. K. [72]

2015

IV

USA

Retrospective

40

n

100

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction, WOMAC,

3

50

ARTHROSCOPIC

Gao, F. [75]

2020

IV

China

Prospective

24

n

27

iHOT-12, mHHS, VAS pain

2

56

ARTHROSCOPIC

Gicquel, T. [76]

2014

IV

France

Prospective

55.2

n

58

WOMAC, satisfaction (1–4)

1

63

ARTHROSCOPIC

Gigi, R. [77]

2016

III

Israel

Retrospective

30.4

n

106

HOS (ADL), mHHS

2

65

ARTHROSCOPIC

Grace, T. [78]

2018

IV

USA

Prospective

X

n

43

HOOS

1

58

ARTHROSCOPIC

Grace, T. [79]

2018

II

USA

Prospective

X

n

46

HOOS, VAS pain

1

59

ARTHROSCOPIC

Grant, L. F. [80]

2017

I

England

RCT

3

n

18

EQ-5D, NAHS

1

33

ARTHROSCOPIC

Graves, M. L. [81]

2009

IV

USA

Retrospective

38

n

46

The Merle d’Aubigne´-Postel score

1

54

OPEN

Griffin, D. R. [83]

2018

I

England

RCT

12

n

213

EQ-5D, iHOT-33, SF12, UCLA

1

58

ARTHROSCOPIC

Gupta, A. [86]

2014

IV

USA

Prospective

28.3

n

47

HOS (ADL + SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

60

ARTHROSCOPIC

Gupta, A. [85]

2015

III

USA

Retrospective

23.1

n

680

HOS (ADL + SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

33

ARTHROSCOPIC

Ha, Y. C. [87]

2020

IV

Corea

Retrospective

24

n

62

mHHS, UCLA, VAS pain, VAS satisfaction

1

90

ARTHROSCOPIC

Hamula, M. J. [88]

2020

III

USA

Retrospective

31.6

n

226

mHHS, NAHS

2

39

ARTHROSCOPIC

Haskel, J. D. [89]

2020

III

USA

Retrospective

24

n

149

mHHS, NAHS

2

25

ARTHROSCOPIC

Hassebrock, J. D. [90]

2019

III

USA

Retrospective

24

n

133

HOS (SS), iHOT-12, mHHS, NAHS, VAS pain, VAS satisfaction

4

47

ARTHROSCOPIC

Herrmann, S. J. [91]

2016

IV

Germany

Retrospective

32

n

79

HOS (ADL + SS)

1

62

ARTHROSCOPIC

Horisberger, M. [92]

2010

IV

Switzerland

Prospective

36

n

20

NAHS, VAS pain

1

80

ARTHROSCOPIC

Hwang, J. M. [94]

2019

IV

Korea

Retrospective

43.6

n

9

HOS (ADL), mHHS, VAS pain

2

75

ARTHROSCOPIC

Ilizaliturri, V. M. [95]

2008

IV

Mexico

Prospective

24

n

19

WOMAC

1

58

ARTHROSCOPIC

İnan, U. [96]

2016

IV

Turkey

Retrospective

48

n

21

HHS

1

33

OPEN

Ishøi, L. [97]

2018

III

Denmark

Retrospective

33.1

y

189

HAGOS

1

51

ARTHROSCOPIC

Ishøi, L. [98]

2019

III

Denmark

Retrospective

33.1

y

184

HAGOS

1

50

ARTHROSCOPIC

Javed, A. [99]

2011

IV

England

Retrospective

30

n

40

mHHS, NAHS, satisfaction y/n

2

65

ARTHROSCOPIC

Jochimsen, K. N. [100]

2019

III

USA

Retrospective

X

n

127

HOOS

1

26

ARTHROSCOPIC

Jäger, M. [101]

2011

IV

Germany

Prospective

12

n

22

HHS

1

32

OPEN

Kaldau, N. C. [102]

2018

IV

Denmark

Retrospective

82.9^b

n

84

EQ-5D, HAGOS, HSAS

2

54

ARTHROSCOPIC

Kaplan, D. J. [103]

2020

IV

USA

Retrospective

76.5

n

103

HHS, mHHS, NAHS

3

32

ARTHROSCOPIC

Keating, T. C. [104]

2019

IV

USA

Retrospective

24

y

22

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

0

ARTHROSCOPIC

Kekatpure, A. L. [105]

2017

III

Korea

Retrospective

25.4

n

83

mHHS, NAHS, WOMAC

3

66

ARTHROSCOPIC

Kierkegaard, S. [107]

2020

II

Denmark

Prospective

12

y

60

HAGOS

1

37

ARTHROSCOPIC

Kierkegaard, S. [108]

2019

II

Denmark

Prospective

12

n

60

HAGOS

1

40

ARTHROSCOPIC

Kockara, N. [109]

2018

IV

Turkey

Retrospective

72

n

33

HHS

1

58

OPEN

Kouk, S. [110]

2020

III

USA

Retrospective

24

n

62

mHHS, NAHS

2

44

ARTHROSCOPIC

Krishnamoorthy, V. P. [112]

2019

III

USA

Retrospective

24

n

830

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

31

ARTHROSCOPIC

Krishnamoorthy, V. P. [111]

2019

III

USA

Retrospective

36.8

n

743

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

32

ARTHROSCOPIC

Krych, A. J. [113]

2016

III

USA

Retrospective

24

n

104

HOS (ADL + SS), mHHS

2

38

ARTHROSCOPIC

Krych, A. J. [114]

2013

I

USA

RCT

32

n

36

HOS (ADL + SS)

1

0

ARTHROSCOPIC

Kunze, K. N. [115]

2019

III

USA

Retrospective

24

n

1094

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

34

ARTHROSCOPIC

Kunze, K. N. [116]

2019

III

USA

Retrospective

24

n

306

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

42

ARTHROSCOPIC

Kunze, K. N. [117]

2019

IV

USA

Prospective

6

n

52

HOS (ADL + SS), iHOT-12, mHHS, PSQI, VAS pain

3

37

ARTHROSCOPIC

Lall, A. C. [118]

2020

III

USA

Retrospective

54.9

n

84

HOS (SS), iHOT-12, mHHS, NAHS, SF-12, VAS pain, VR-12

4

36

ARTHROSCOPIC

Lansdown, D. A. [120]

2018

IV

USA

Retrospective

24

n

707

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

36

ARTHROSCOPIC

Lansdown, D. A. [121]

2018

III

USA

Retrospective

24

n

301

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

36

ARTHROSCOPIC

Lee, S. [122]

2015

IV

USA

Retrospective

21

n

131

mHHS, VAS satisfaction

1

56

ARTHROSCOPIC

Lerch, S. [123]

2015

IV

Germany

Prospective

3.3

n

40

HOOS, WOMAC

2

x

ARTHROSCOPIC

Levy, D. M. [124]

2017

III

USA

Retrospective

24

n

84

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

36

ARTHROSCOPIC

Lindman, I. [125]

2020

IV

Sweden

Prospective

60

n

64

HAGOS, HSAS, iHOT-12, VAS hip function, EQ-5D, EQ VAS, satisfaction y/n

3

81

ARTHROSCOPIC

Malagelada, F. [127]

2015

IV

Spain

Prospective

12

y

14

LISOH, VAS pain

1

64

MINI-OPEN TECHNIQUE

Maldonado, D. R. [128]

2020

III

USA

Retrospective

24

n

145

HOS (SS), iHOT-12, mHHS, NAHS, SF-12, VAS pain, VAS satisfaction, VR-12

4

12

ARTHROSCOPIC

Malloy, P. [129]

2019

IV

USA

Retrospective

26.4

n

50

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

36

ARTHROSCOPIC

Mannion, A. F. [130]

2013

II

Switzerland

Prospective

12

n

86

GTO, OHS, NASS

2

44

MINI-OPEN AND ARTHROSCOPIC

Mansell, N. S. [131]

2018

I

USA

RCT

12

n

40

GRC, HOS (ADL + SS), iHOT-33, PCS, Self-motivation inventory score, VAS pain

2

53

ARTHROSCOPIC

Mardones, R. [132]

2016

IV

Chile

Retrospective

52.8

n

23

mHHS, VAS pain

1

22

ARTHROSCOPIC

Mardones, R. [133]

2016

IV

Chile

Retrospective

48

n

15

mHHS, VAS pain, VHS

2

27

ARTHROSCOPIC

Martínez, D. [135]

2015

IV

Colombia

Retrospective

23.8

n

179

WOMAC

1

35

ARTHROSCOPIC

Mas Martinez, J. [136]

2020

IV

Spain

Retrospective

24

y

185

HOS (ADL + SS), iHOT-12 mHHS

3

77

ARTHROSCOPIC

Matsuda, D. K. [137]

2013

III

USA

Retrospective

30

n

54

NAHS, satisfaction scale

1

59

ARTHROSCOPIC

Matsuda, D. K. [138]

2017

III

USA

Retrospective

12

n

77

NAHS, satisfaction (1–5)

1

52

ARTHROSCOPIC

Matsuda, D. K. [139]

2019

III

USA

Retrospective

24

n

437

iHOT-12

1

67

ARTHROSCOPIC

Menge, T. J. [140]

2017

III

USA

Retrospective

120

n

154

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction

2

52

ARTHROSCOPIC

Mladenović, D. [141]

2014

IV

Serbia

Retrospective

12

n

21

WOMAC

1

23

OPEN

Naal, F. D. [144]

2017

III

Switzerland

Retrospective

44.4

n

232

EQ-5D, EQ-VAS, OHS, satisfcation scale (1–5), UCLA

1

49

INCLUDING BOTH

Nabavi, A. [145]

2015

III

Australia

Retrospective

12

n

253

mHHS, NAHS

2

50

ARTHROSCOPIC

Nakashima, H. [146]

2019

III

Japan

Retrospective

34.1

n

97

mHHS, NAHS

2

44

ARTHROSCOPIC

Nawabi, D. H. [147]

2016

III

USA

Retrospective

24

n

177

HOS (ADL + SS), iHOT-33, mHHS

3

46

ARTHROSCOPIC

Nepple, J. J. [148]

2015

IV

USA

Prospective

X

n

50

mHHS, SF-12

1

64

ARTHROSCOPIC

Nepple, J. J. [149]

2009

III

USA

Retrospective

24^a

n

48

mHHS

1

60

ARTHROSCOPIC AND LIMITED OPEN OSTEOCHONDROPLASIA

Nho, S. J. [150]

2019

III

USA

Retrospective

27.8

n

935

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

37

ARTHROSCOPIC

Nwachukwu, B. U. [151]

2020

III

USA

Retrospective

24

n

898

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

35

ARTHROSCOPIC

Nwachukwu, B. U. [152]

2018

III

USA

Retrospective

24

n

719

HOS (ADL + SS), iHOT-33, mHHS

3

47

ARTHROSCOPIC

Nwachukwu, B. U. [153]

2017

III

USA

Retrospective

12

n

364

HOS (ADL + SS), iHOT-33, mHHS

3

43

ARTHROSCOPIC

Palmer, A. J. R. [156]

2019

I

England

RCT

8

n

112

EQ-5D, EQ-VAS, HADS (anxiety + depression), HAGOS, HOS (ADL + SS), iHOT-33, NAHS, OHS, Pain detect score, UCLA

5

34

ARTHROSCOPIC

Park, M. S. [157]

2014

IV

Korea

Retrospective

28.2

n

197

mHHS, VAS satisfaction

1

49

ARTHROSCOPIC

Perets, I. [160]

2019

III

USA

Retrospective

60

n

52

HOS (SS), iHOT-12, mHHS, NAHS, VAS pain, VAS satisfaction

4

72

ARTHROSCOPIC

Perets, I. [161]

2018

III

USA

Retrospective

71

n

148

HOS (SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

39

ARTHROSCOPIC

Perets, I. [159]

2018

IV

USA

Retrospective

60

n

94

HOS (SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

45

ARTHROSCOPIC

Philippon, M. J. [164]

2010

IV

USA

Retrospective

24

y

28

mHHS, VAS satisfaction

1

100

ARTHROSCOPIC

Philippon, M. J. [162]

2009

IV

USA

Prospective

27.6

n

112

HOS (ADL + SS), mHHS, NAHS, VAS satisfaction

3

45

ARTHROSCOPIC

Philippon, M. J. [163]

2012

IV

USA

Prospective

35.7

n

153

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction

2

47

ARTHROSCOPIC

Polesello, G. C. [165]

2012

IV

Brazil

Retrospective

34.3

y

47

mHHS, satisfaction

1

43

ARTHROSCOPIC

Polesello, G. C. [166]

2009

IV

Brazil

Retrospective

27

n

28

HHS

1

67

ARTHROSCOPIC

Potter, M. Q. [167]

2014

II

USA

Prospective

X

n

147

HOS (ADL + SS), mHHS, Modified zung depression scale, MSPQ

2

37

ARTHROSCOPIC

Przybyl, M. [168]

2018

III

Poland

Retrospective

24

y

129

mHHS, NAHS

2

100

ARTHROSCOPIC

Ragab, R. [169]

2018

IV

Egypt

Prospective

12.5

n

40

iHOT-12, mHHS

2

50

ARTHROSCOPIC

Ramos, N. [171]

2020

III

USA

Retrospective

12

n

70

mHHS

1

47

ARTHROSCOPIC

Ramos, N. [172]

2020

IV

USA

Retrospective

19.2

y

10

mHHS, satisfaction

1

100

ARTHROSCOPIC

Redmond, J. M. [173]

2015

III

USA

Retrospective

24

n

190

HOS (ADL + SS), mHHS, NAHS, VAS pain, VAS satisfaction

3

37

ARTHROSCOPIC

Rego, P. A. [174]

2018

III

Portugal

Retrospective

59

y

198

NAHS

1

56

INCLUDING BOTH

Ribas, M. [176]

2007

IV

Spain

Retrospective

29.2

y

32

The Merle d’Aubigné -Postel score, WOMAC

2

72

MINI-OPEN TECHNIQUE

Riff, A. J. [177]

2018

IV

USA

Retrospective

24

y

32

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

40

ARTHROSCOPIC

Rivera, E. [178]

2020

III

Spain

Retrospective

24

n

80

iHOT-33, mHHS, VAS pain

2

66

ARTHROSCOPIC

Roos, B. D. [179]

2017

III

Brazil

Retrospective

36^a

n

56

mHHS, NAHS

2

84

INCLUDING BOTH

Roos, B. D. [180]

2015

IV

Brazil

Retrospective

29.1

n

40

mHHS, NAHS

2

87

ARTHROSCOPIC

Rylander, J. H. [181]

2011

IV

USA

Prospective

12

n

11

Tegner

0

73

ARTHROSCOPIC

Saltzman, B. M. [182]

2017

III

USA

Retrospective

31.2

n

381

HOS (ADL + SS), mHHS, VAS pain, VAS satisfaction

2

39

ARTHROSCOPIC

Samaan, M. A. [183]

2020

II

USA

Prospective

7

n

10

HOOS

1

80

ARTHROSCOPIC

Sanders, T. L. [184]

2017

IV

USA

Retrospective

30

y

46

ADL, IHOT, mHHS, sport score, subjective level of function (1–4)

2

33

ARTHROSCOPIC

Sansone, M. [186]

2015

IV

Sweden

Prospective

12.3

n

85

EQ-5D, HAGOS, HSAS, iHOT-12, VAS overall hip function, satisfaction y/n

3

80

ARTHROSCOPIC

Sansone, M. [187]

2016

IV

Sweden

Prospective

26

n

75

EQ-5D, HAGOS, HSAS, iHOT-12, VAS overall hip function, satisfaction y/n

3

77

ARTHROSCOPIC

Sansone, M. [188]

2017

IV

Sweden

Prospective

25.4

n

289

EQ-5D, HAGOS, HSAS, iHOT-12, VAS overall hip function, satisfaction y/n

3

66

ARTHROSCOPIC

Sariali, E. [189]

2018

IV

France

Prospective

39.6

n

47

HHS, OHS

2

x

ARTHROSCOPIC

Scanaliato, J. P. [190]

2018

III

USA

Retrospective

24

n

152

iHOT-12, mHHS, SF-12, VAS pain, VAS satisfaction

2

42

ARTHROSCOPIC

Shaw, K. A. [191]

2017

IV

USA

Prospective

6

n

11

HOS, mHHS

2

73

ARTHROSCOPIC

Shibata, K. R. [192]

2017

III

USA

Retrospective

18.9

y

98

HSAS, iHOT-33, mHHS

3

50

ARTHROSCOPIC

Skendzel, J. G. [194]

2014

III

USA

Retrospective

73

n

559

HOS (ADL + SS), mHHS, SF-12, VAS satisfaction, WOMAC

3

44

ARTHROSCOPIC

Skowronek, P. [195]

2017

IV

Poland

Retrospective

45

y

39

HHS, SF-36, VAS pain

1

64

MIN-OPEN DIRECT ANTERIOR APPROACH (DDA)

Sochacki, K. R. [198]

2018

III

USA

Retrospective

X

n

212

HOS (ADL + SS), iHOT-12, SF-36

2

44

ARTHROSCOPIC

Sochacki, K. R. [197]

2018

III

USA

Retrospective

12

n

77

BDI-2, HOS (ADL + SS), iHOT-33

2

27

ARTHROSCOPIC

Spencer-Gardner, L. [199]

2017

III

Australia

Retrospective

19

n

36

mHHS, NAHS

2

42

ARTHROSCOPIC

Srinivasan, S. C. [200]

2013

IV

England

Retrospective

22.3

n

26

NAHS, UCLA, VAS pain

2

42

COMBINED ARTHROSCOPIC AND OPEN

Stone, A. V. [201]

2019

IV

USA

Retrospective

24

n

626

HOS (SS), VAS pain, VAS satisfaction

1

31

ARTHROSCOPIC

Stone, A. V. [202]

2019

III

USA

Retrospective

24

n

688

HOS (ADL + SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

35

ARTHROSCOPIC

Stähelin, L. [203]

2008

IV

Switzerland

Prospective

6

n

22

NAHS, VAS pain

1

68

ARTHROSCOPIC

Thomas, D. D. [204]

2017

IV

USA

Retrospective

30

n

469

SANE, VAS pain

0

66

ARTHROSCOPIC

Tjong, V. K. [207]

2016

IV

USA

Prospective

24

y

23

HOS (SS), iHOT-12, mHHS, VAS pain, VAS satisfaction

3

35

ARTHROSCOPIC

Vahedi, H. [208]

2019

III

USA

Retrospective

49.9

n

601

mHHS, SF-36

1

54

ARTHROSCOPIC

Wadhwani, J. [209]

2018

IV

Spain

Retrospective

12

n

105

mHHS

1

50

ARTHROSCOPIC

Westermann, R. W. [210]

2018

III

USA

Retrospective

X

n

321

HOOS (pain + physical function), UCLA, VR-12

1

31

ARTHROSCOPIC

Wu, C. T. [211]

2019

IV

Taiwan

Retrospective

44

n

36

HHS, VAS pain

1

56

MINI-OPEN ARTHROSCOPIC-ASSISTED

Wörner, T. [212]

2019

III

Sweden

Retrospective

8.1

y

33

HAGOS, HSAS

2

88

ARTHROSCOPIC

Yoo, J. I. [214]

2017

IV

Korea

Retrospective

24

n

40

mHHS, UCLA, VAS pain

1

63

ARTHROSCOPIC

Yun, H. H. [215]

2009

IV

Korea

Retrospective

27.6

n

16

HHS

1

86

OPEN

Zhu, X. [217]

2020

I

China

RCT

3

n

100

HHS, PGA, VAS pain

1

51

ARTHROSCOPIC

Zimmerer, A. [218]

2018

II

Germany

Prospective

24.4

n

43

HOOS, WOMAC

2

72

ARTHROSCOPIC

Zusmanovich, M. [219]

2020

III

USA

Retrospective

25.2

n

34

mHHS, NAHS, VAS pain

2

41

ARTHROSCOPIC

Öhlin, A. [220]

2017

IV

Sweden

Prospective

24

n

198

iHOT-12, satisfaction y/n

1

62

ARTHROSCOPIC