. 2018 Dec 24;115(51-52):855–862. doi: 10.3238/arztebl.2018.0855

eTable 2c. Characteristics and functional outcomes of studies included in review that found no significant difference in knee function between conservative treatment and surgery, with suboptimum knee-joint stability.

First
author,
year
(reference)
(design)

n
(surgery/
conservative
treatment)

Time to
surgery
(months)

Age
(years)

Follow-up
(months)

Anteroposterior stability (side-to-side difference [mm]) (surgery/conservative treatment)

Clinical stability, pivot shift, Lachman (surgery/conservative treatment) (clinical [%])

Crossover
rate (%)

Lysholm
(surgery/
conservative
treatment)

Tegner
(surgery/
conservative
treatment)

IKDC
(surgery/
conservative
treatment)

KOOS
(surgery/
conservative
treatment)

Single-leg hop test
(surgery/
conservative
treatment)

RTS/RTPL
(surgery/
conservative
treatment)
(%)

Myklebust 2003
(23)
(PCS)

57 / 22

Not stated

<3 mm category:
40% / 41%

–

85 (± 13) /
85 (± 13)*¹

–

Normal:
9% / 4%
Almost normal:
31% / 13%
Abnormal:
23% / 7%
Very abnormal:
13% / 0%

–

7 (± 3) / 2 (± 3)
(difference in hop
between injured &
uninjured legs, cm)

58 / 82

Moksnes 2009
(24)
(PCS)

52 / 50

6 (after 3
months’
rehab)

27.2
(± 8.6)

4.1 (± 0.7) /
7.6 (± 0.5)*²

–

16.1
(10 / 62)

–

87.0 (± 1.7) /
86.1 (± 1.6)

–

91.8 (± 1.4) /
95.9 (± 1.4)*²
(hop, % vs.
uninjured leg)

–

Frobell 2013
(14)
(RCT)

62*³ / 59

<2.5

26.5
(± 5.0)

6.6 / 8.3*²

76 / 40 (pivot)
76 / 32 (Lachman)

51
(30 / 59)

–

4 (2 to 7) /
4 (2 to 6.5)

–

Symptoms:
83 (78 to 87)/ 87
(79 to 95)
Pain:
91 (88 to 94) / 91
(86 to 96)
ADL:
95 (93 to 97) / 97
(93 to 100)
Sport:
76 (70 to 81) / 79
(68 to 90)
QOL:
71 (65 to 76)/ 69
(58 to 80)

–

Meuffels
2009 (3)/

van Yperen
2018 (6)
(RCS)

25 / 25

6 (2 to 258)

37.7
(± 6.5)

272

>3 mm category

(2009):
6 (24%) /
17 (68%)*²

(2018):
10 (40%) /
19 (83%)*²

2009:
20 / 84 (≥1 + pivot)

2018:
32 / 87 (≥1 + pivot)

–

2009:
88.0 (80.5 to 91.0)/
85.0 (77.0 to 90.0)

2018:
86.0 (75.5 to 91.0) /
89.0 (75.5 to 95.5)

2009:
6 (4 to 7) /
5 (4 to 7)

2018:
5 (3 to 6) /
4 (4 to 6)

2009:
77.1 (65.1 to 87.3) /
77.1 (67.5 to 84.9)

2018:
81.6 (59.8 to 89.1) /
78.2 (61.5 to 92.0)

2018:
Symptoms:
86 / 93
Pain:
92 / 97
ADL:
96 / 99
Sport:
85 / 85
QOL:
63 / 69

2009:
93.7 (80.0 to 100.7)/
96.1 (84.2 to 100.9)

2018:
85.9 (68.1 to 101.9) /
95.1 (70.8 to 104.7)
(hop, % vs.
uninjured leg)

–

ADL: activities of daily living; IKDC: International Knee Documentation Committee; KOOS: Knee Injury and Osteoarthritis Outcome Score; PCS: prospective cohort study; QOL: quality of life; RCT: randomized controlled trial; RCS: retrospective cohort study;

RTS: rate of return to sport; RTPL: rate of return to preinjury level; *¹ copers; *² p <0.05; *³ including delayed anterior cruciate ligament reconstruction