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Table 2 List of relevant studies from literature

From: Autologous cell-free serum preparations in the management of knee osteoarthritis: what is the current clinical evidence?

Author and year

Study patients

Age at presentation

Mean (± SD)/median (range)

BMI

Mean (± SD)/median (range)

OA severity (K-L grade/ACR criteria)

Intraarticular injection and number

Follow-up (months)

Mean (± SD)/median (range)

Outcome measures

Adverse events (AE)/complications

Level of evidence

Kon et al. 2018 [22]

46

57 (41–68)

NR

K-L 2–3

APS

1

12 (± NR)

WOMAC

VAS

KOOS

SF-36

CGI-S/PGI-S

AE – 6

Arthralgia

2

Tassara et al. 2018 [24]

25

68 (34–87)

NR

NR

ACS

4

6 (± NR)

VAS

ROM

None

3

Zarringam et al. 2018 [23]

126

63 (NR)

NR

K-L 1–3

ACS

6

90 (± 47)

K-M

NR

3

Barreto et al. 2017 [31, 32]

100

61.2 (± 1.2)

33.8 (± 1.4)

ACR

ACS

6

12 (± NR)

VAS

XSMFA-D

PGIC

NR

3

Hang et al. 2017 [33]

92

NR

NR

NR

ACS

4

12 (± NR)

VAS

WOMAC

NR

3

Shirokova et al. 2017 [34]

123

59.9 (± 8.8)

NR

ACR

ACS

6

3 (± NR)

VAS

WOMAC

NR

3

Hix et al. 2017 [20]

10

58.8 (± 9.5)

29.0 (± 3.9)

NR

APS

1

12 (± NR)

WOMAC

KOOS

NRS

AE – 4

Arthralgia

Discomfort

3

van Drumpt et al. 2016 [21]

10

57.5 (± 9.5)

26.6 (± 3.1)

K-L 1–4

APS

1

18 (± 1)

WOMAC

AE – 6

Arthralgia

Joint stiffness

Injection site pain

3

Garcia-Escudero et al. 2015 [35]

118

59 (34–81)

29.6 (± NR)

K-L 1–4

ACS

4

24 (± NR)

WOMAC

NRS

None

3

Rutgers et al. 2015 [36]

20

50 (34–70)

NR

K-L 1–3

ACS

6

12 (± NR)

VAS

KOOS

KSCRS

NR

3

Motaal et al. 2014 [37]

30

54.21 (± 5.95)

NR

K-L 1–3

ACS

3

3 (± NR)

WOMAC

NR

3

Baltzer et al. 2009 [38]

376

53.8 (± 12.2)

NR

K-L 2–3

ACS

6

25 (± NR)

WOMAC

SF-8

VAS

AE – 31

Joint swelling

Transient pain

2

Yang et al. 2008 [39]

153

54 (± 11)

27 (± 5)

K-L 1–3

ACS

6

12 (± NR)

WOMAC

KSCRS

Knee pain – 44

Irritation – 70

Swelling – 10

Septic arthritis – 1

2

  1. AE adverse events, BMI body mass index, ROM range of movement, SD standard deviation, NR not reported, APS autologous protein solution, ACS autologous conditioned serum, K-L Kellgren-Lawrence, ACR American College of Rheumatology criteria, VAS visual analogue scale, KOOS Knee injury and Osteoarthritis Outcome Score, WOMAC Western Ontario and McMaster Universities osteoarthritis instrument, OA osteoarthritis, SF-8 Short-Form 8 health-related quality of life, K-M Kaplan-Meier method, CGI-S Clinical Global Impression of Severity, PGI-S Patient Global Impression of Severity, XSMFA-D Extra Short Musculoskeletal Functional Assessment, KSCRS Knee Society clinical rating scale, NR