Table 1 Basic Information of the Studies Included in the Systematic review

Boettner et al. [24]

Knee Surgery, Sports Traumatology, Arthroscopy

3/3

ATA*

3 Patella

67

2 (67%)

4

50

10

Burnett et al. [27]

Clinical Orthopaedics and Related Research

19/19

10 ATA*

8 Patellar tendon

2 Patella

66,1

7 (70%)

4.7

53

16

9 EMA*

5 Patellar tendon

4 Patella

66,4

6 (67%)

4,5

Wise et al. [33]

International Orthopaedics

17/16

ATA*

10 Patellar tendon

7 Quadriceps tendon

71

11 (69%)

3,8

53

12

Ares et al. [23]

Archives of Orthopaedic and Trauma Surgery

5/5

ATA*

5 Patellar tendon

74

4 (80%)

2,1

57

10

Crossett et al. [26]

The Journal of Bone and Joint Surgery

9/9

ATA*

9 Patellar tendon

70

6 (67%)

2

48

10

Lim et al. [30]

The Journal of Arthroplasty

16/16

12 ATA*

9 Patellar tendon

3 Quadriceps tendon

63

7 (58%)

2.9

43

10

4 EMA*

4 Patellar tendon

71

2 (50%)

4.7

Burnett et al. [25]

The Journal of Bone and Joint Surgery

13/13

EMA*

13 Patellar tendon

3 Quadriceps tendon

4 Patella

64

9 (69%)

3.1

50

17

Emerson et al. [28]

Clinical Orthopaedics and Related Research

15/14

9 EMA** 6 EMA*

15 Patellar tendon

69

12 (86%)

4.1

53

12

Leopold et al. [29]

The Journal of Bone and Joint Surgery

7/6

EMA*

7 Patellar tendon

73

N/A

3.3

55

13

Malhotra et al. [31]

The Journal of Arthroplasty

4/4

EMA* **

4 Patellar tendon

67,7

3 (75%)

1.8

50

13

Rajgopal et al. [32]

Journal of Knee Surgery

7/7

EMA*

7 Patellar tendon

60

5 (71%)

1,5

48

10

Wood et al. [34]

Journal of the American Academy of Orthopaedic Surgeons

14/14

4 EMA* 2 EMA**/6 ATA*

N/A

71

9 (64%)

5,3

63

12