Table 5 |
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|
Association between patella alignment (fore groups) and adjusted means of medial patellar osteophytes |
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| Measure |
Medial patellar osteophytes |
p for trend |
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|
|
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| Quartile... |
1 |
2 |
3 |
4 |
||
|
|
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| PLR |
No. of knees |
100 |
100 |
100 |
104 |
|
| Range of PLR |
0.66–0.87 |
0.88–0.98 |
0.98–1.12 |
1.13–1.71 |
||
| OR (95% CI) |
1.00 |
1.27 (0.75–2.15) |
1.16 (0.68–1.96) |
1.12 (0.66–1.90) |
Linear, 0.5996 |
|
| SA |
No. of knees |
102 |
104 |
98 |
100 |
|
| Range of SA |
98–113 |
114–119 |
120–124 |
125–155 |
||
| OR (95% CI) |
1.00 |
1.465 (0.87–2.43) |
1.73 (1.03–2.93) |
1.69 (1.01–2.83) |
Linear, 0.0514 |
|
| LPTA |
No. of knees |
104 |
102 |
88 |
108 |
|
| Range of LPTA |
-25 to 13 |
14–17 |
18–21 |
22–35 |
||
| OR (95% CI) |
1.00 |
0.80 (0.48–1.35) |
0.93 (0.55–1.60) |
1.43 (0.85–2.39) |
Linear, 0.1080 |
|
| BO |
No. of knees |
98 |
98 |
102 |
100 |
|
| Range of BO |
38.46–54.55 |
54.76–60.42 |
60.47–66.67 |
66.67–100 |
||
| OR (95% CI) |
1.00 |
0.887 (0.346–2.272) |
0.711 (0.272–1.857) |
0.189 (0.057–0.638) |
Linear, 0.888 |
|
|
|
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|
Results are adjusted for age, sex and bone mass index. PLR, patellar length ratio; SA, sulcus angle; LPTA, lateral patellar tilt angle; BO, bisect offset; OR, odds ratio; CI, confidence interval. |
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|
Kalichman et al. Arthritis Research & Therapy 2007 9:R26 doi:10.1186/ar2138 |
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