Varus alignment (baseline) and incident medial cartilage damage (outcome variable) between baseline and 30-month follow-up (n=293 knees with normal cartilage morphology at baseline)
| Alignment | Knees without any cartilage damage at baseline (293 knees) | (Row %) knees with incident medial cartilage damage at 30 months (34 knees, 11.6%) | OR (95% CI) adjusted for age, gender, BMI, lateral laxity | OR (95% CI) adjusted for age, gender, BMI, lateral laxity, medial meniscal tear, medial meniscal extrusion |
|---|---|---|---|---|
| Non-varus (reference) | 183 | 14 (7.7%) | Reference | Reference |
| Varus | 110 | 20 (18.2%) | 3.53 (1.61 to 7.76) | 3.59 (1.59 to 8.10) |
| Neutral (reference) | 128 | 14 (10.9%) | Reference | Reference |
| Varus | 110 | 20 (18.2%) | 2.32 (1.07 to 5.05) | 2.42 (1.08 to 5.44) |
| Varus (continuous), OR per 1° of greater varus | 293 | – | 1.40 (1.21 to 1.61) | 1.38 (1.19 to 1.59) |
BMI, body mass index.