Table 2 |
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|
Association between patellar alignment (fore groups) and adjusted means of lateral PF joint space narrowing |
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| Measure |
Lateral 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 |
1.56 (0.66–3.67) |
1.36 (0.57–3.23) |
2.77 (1.20–6.39) |
Linear, 0.0136; U-shaped, 0.1630 |
|
| SA |
No. of knees |
51 |
52 |
49 |
50 |
|
| Range of SA |
98–113 |
114–119 |
120–124 |
125–155 |
||
| OR (95% CI) |
1.00 |
1.48 (0.66–3.33) |
1.58 (0.71–3.56) |
1.43 (0.63–3.24) |
Linear, 0.1206; U-shaped, 0.6204 |
|
| LPTA |
No. of knees |
52 |
51 |
44 |
54 |
|
| Range of LPTA |
-25 to 13 |
14–17 |
18–21 |
22–35 |
||
| OR (95% CI) |
1.00 |
0.46 (0.21–0.97) |
0.32 (0.14–0.73) |
0.10 (0.04–0.27) |
Linear, <0.0001; U-shaped, 0.9073 |
|
| 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 |
2.16 (0.78–5.96) |
4.22 (1.58–11.25) |
8.26 (3.06–22.30) |
Linear, <0.0001; U-shaped, 0.2468 |
|
|
|
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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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