Table 3 |
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|
Association between patella alignment (fore groups) and adjusted means of medial PF joint space narrowing |
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| Measure |
Medial joint space narrowing |
p for trend |
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|
|
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| Quartile... |
1 |
2 |
3 |
4 |
||
|
|
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| PLR |
No. of knees |
50 |
50 |
50 |
52 |
|
| Range of PLR |
0.66–0.87 |
0.88–0.98 |
0.98–1.12 |
1.13–1.71 |
||
| OR (95% CI) |
1.00 |
1.97 (0.65–5.99) |
2.09 (0.70–6.19) |
2.47 (0.86–7.14) |
Linear, 0.1253 |
|
| SA |
No. of knees |
51 |
52 |
49 |
50 |
|
| Range of SA |
98–113 |
114–119 |
120–124 |
125–155 |
||
| OR (95% CI) |
1.00 |
1.37 (0.47–3.98) |
1.66 (0.57–4.87) |
3.17 (1.15–8.72) |
Linear, 0.0162 |
|
| LPTA |
No. of knees |
52 |
52 |
44 |
54 |
|
| Range of LPTA |
-25 to 13 |
14–17 |
18–21 |
22–35 |
||
| OR (95% CI) |
1.00 |
1.532 (0.546–4.302) |
1.697 (0.603–4.773) |
2.185 (0.822–5.809) |
Linear, 0.0259 |
|
| BO |
No. of knees |
49 |
49 |
51 |
50 |
|
| 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, 0.0026 |
|
|
|
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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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