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M. Charles, R. Afra, D.C. Fithian
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Table 2
Measurement
Control Means
+ SE
PFJD means
+ SE
CI 95%
Normal
PFJDs
Significance
Transepicondylar Width
71.00 ± 0.76
75.23 ± 0.95
80.14 - 83.16
73.30 - 77.16
< .001
Patellar Angle
Angle of Fulkerson
18.18° + 0.56
-3.5° + 2.62
17.08 - 19.29
-8.79 - 1.79
< .001
Angle of Grelsamer
14.00° + 0.73
24.82° + 2.03
12.55 – 15.45
20.72 – 28.92
< .001
Angle of Laurin
10.10° + 0.48
-5.23° + 2.96
9.14 – 11.05
-11.23 – 0.76
< .001
Patellar Inclination
Angle
8.10° + 0.55
24.03° + 2.42
7.02 – 9.19
19.14 – 28.92
< .001
Lateral Patellar
Displacement
3.28 + 0.24 mm 6.59 + 0.69 mm
2.79 – 3.77
5.19 – 7.97
< .001
Trochlear Morphology (1
st
cut)
Sulcus Angle
148.48° + 0.94
165.57° + 2.65
146.61 – 150.34
160.76 – 171.44
< .001
Congruence Angle
13.95° + 2.00
40.14° + 4.57
9.97 – 17.92
30.89 – 49.38
< .001
Trochlear Groove Depth 6.47 + 0.24 mm 4.00 + 0.43 mm
5.99 – 6.94
3.11 – 4.87
< .001
Roman Arch
17.13 + 0.45 mm 15.39 + 0.73 mm
16.23 – 18.02
13.91 – 16.87
.036
Trochlear Groove
Thickness
42.90 + 0.48 mm 42.73 + 0.95 mm
41.95 – 43.86
40.81 – 44.64
.853
% of Epicondylar Width
TGT
0.53 ± 0.00
0.56 ± 0.01
0.52 – 0.54
0.55 – 0.58
< .001
ETIT
1.51+ 0.05
2.11 + 0.17
1.42 – 1.61
1.77 - 2.46
< .001
Lateral Condylar Height
63.94 + 0.61 mm 59.69 + 0.89 mm
62.73 – 65.16
57.89 – 61.01
< .001
% of Epicondyalr Width
LCH
0.78 ± 0.01
0.80 ± 0.01
0.77 – 0.79
0.78 – 0.82
.061
Biedert Central
Condylar Height
60.03 ± 0.63
58.12 ± 1.43
58.78 – 61.29
55.22 – 61.01
.157
% of Epicondylar Width
CCH
0.73 ± 0.01
0.76 ± 0.01
0.72 – 0.75
0.74 – 0.79
.018
Medial Condylar Height
58.77 + 0.63 mm 55.53 + 0.99 mm
57.52 -60.03
53.52 – 57.53
.005
% of Epicondylar Width
MCH
0.72 ± 0.01
0.74 ± 0.01
0.70 – 0.73
0.72 – 0.77
.036
Lateral Trochlear
Inclination
21.27° + 0.66
13.31° + 1.36
19.95 – 22.58
10.56 – 16.07
< .001
TTTG
10.96 ± 0.39
18.69 ± 0.81
10.19 – 11.73
17.06 – 20.32
< .001