|
Study/Year
|
Country
|
Recruitment period
|
Group
|
Patients (male/female)
|
Number of TKAs
|
Age (year)
|
BMI (kg/m2)
|
Follow-up (months)
|
Results Favor
|
|---|
|
Huang 2016
|
China
|
2005–2007
|
QS
|
2/29
|
31
|
69.3 ± 7.9
|
26.9 ± 3.3
|
65 ± 3.8
|
QS
|
|
MP
|
2/28
|
30
|
71.2 ± 5.8
|
26.7 ± 2.8
|
68 ± 5.4
|
|
Qi 2016
|
China
|
2005–2007
|
QS
|
2/26
|
30
|
65.3 ± 6.9
|
26.5 ± 3.0
|
74.8
|
QS
|
|
MP
|
2/24
|
28
|
64.0 ± 5.7
|
28.1 ± 4.1
|
74.8
|
|
Lin 2013
|
Taiwan
|
2007–2008
|
QS
|
5/30
|
35
|
67.7 (60, 78)
|
26.3 (21.2, 29.7)
|
24
|
MP
|
|
MP
|
5/30
|
35
|
68.5 (55, 77)
|
25.9 (20, 29.5)
|
24
|
|
Xu 2013
|
China
|
2009–2010
|
QS
|
7/19
|
35
|
63.5 ± 8.7
|
25.2 ± 3.4
|
24
|
QS
|
|
MP
|
11/18
|
35
|
64.2 ± 9.3
|
25.2 ± 2.3
|
24
|
|
Chiang 2012
|
Taiwan
|
2005
|
QS
|
3/27
|
38
|
69.7 ± 5.3
|
28.6 ± 3.8
|
24
|
MP
|
|
MP
|
3/27
|
37
|
69.8 ± 5.4
|
29.6 ± 3.5
|
24
|
|
Matsumoto 2011
|
Japan
|
2005–2007
|
QS
|
0/25
|
25
|
73.8 ± 1.7
|
Unclear
|
0
|
MP
|
|
MP
|
0/25
|
25
|
73.7 ± 1.4
|
Unclear
|
0
|
|
Yang 2010
|
Korea
|
2006–2007
|
QS
|
1/14
|
24
|
66.7 ± 6.9
|
Unclear
|
24
|
MP
|
|
MP
|
2/14
|
23
|
68 ± 6.8
|
Unclear
|
24
|
|
Karpman 2009
|
USA
|
2004–2005
|
QS
|
8/12
|
20
|
73 ± 7.4
|
28 ± 4.4
|
6
|
QS
|
|
MP
|
9/10
|
19
|
73 ± 5.1
|
29 ± 4.6
|
6
|
|
Chotanaphuti 2008
|
Thailand
|
2004–2005
|
QS
|
3/17
|
20
|
68.4 (58, 78)
|
Unclear
|
0.25
|
QS
|
|
MP
|
4/16
|
20
|
67.5 (56, 80)
|
Unclear
|
0.25
|
|
Shen 2007
|
China
|
2005–2006
|
QS
|
Unclear
|
26
|
Unclear
|
Unclear
|
17
|
QS
|
|
MP
|
Unclear
|
33
|
Unclear
|
Unclear
|
17
|
|
Huang 2007
|
Taiwan
|
2004–2005
|
QS
|
6/26
|
32
|
63 (56, 72)
|
Unclear
|
24
|
MP
|
|
MP
|
7/28
|
35
|
65 (59, 75)
|
Unclear
|
24
|
|
King 2007
|
USA
|
2003–2005
|
QS
|
48/52
|
100
|
67 (44, 84)
|
30 (22, 43)
|
1.5
|
QS
|
|
MP
|
17/28
|
45
|
66 (42, 85)
|
32 (20, 49)
|
1.5
|
|
Kim 2007
|
Korea
|
2004–2005
|
QS
|
27/93
|
120
|
65.4 (43, 88)
|
28.1 (19, 36)
|
21.5
|
MP
|
|
MP
|
27/93
|
120
|
65.4 (43, 88)
|
28.1 (19, 36)
|
21.5
|
|
Chin 2007
|
Singapore
|
2004
|
QS
|
6/24
|
30
|
69.0 (57, 80)
|
27.53 (18.6, 34.2)
|
Unclear
|
MP
|
|
MP
|
3/27
|
30
|
63.4 (47, 80)
|
29.44 (22.7, 40)
|
Unclear
|
|
Chen 2006
|
USA
|
Prior to 2002
|
QS
|
11/17
|
32
|
70 (50, 86)
|
28.5 (17.9, 39.9)
|
33
|
MP
|
|
MP
|
11/18
|
38
|
67 (42, 81)
|
28.7 (21.6, 40.1)
|
40
|
|
Kim 2006
|
Korea
|
2003
|
QS
|
7/65
|
144
|
68.6 (57, 85)
|
27.2
|
13.6
|
MP
|
|
MP
|
8/64
|
144
|
67.4 (58, 84)
|
28.1
|
13.6
|
- TKA total knee arthroplasty, BMI body mass index, QS quadriceps-sparing, MP medial parapatellar
