Table 7.
Significant predictors and confidence interval outcomes for Marx Activity Level scores 6 years after ACL reconstruction
| Predictor | (comparison) | Coefficient | (95% CI) | Worse Outcome |
|---|---|---|---|---|
| Baseline score | 3.33 | (2.51–4.42) | Lower baseline | |
| Follow up time | (2 years vs. 6 years) | 0.45 | (0.35–0.58) | 6 years |
| Age | (15 vs. 35 years) | 0.38 | (0.24–0.62) | Older age |
| Gender | (male vs. female) | 0.52 | (0.42–0.62) | Females |
| BMI | (23 vs. 28) | 0.83 | (0.73–0.95) | Higher BMI |
| Smoking status | (never vs. quit) | N.S. | ||
| (never vs. current) | 0.66 | (0.50–0.89) | Current smoker | |
| Education | (12 vs. 16 years) | 1.22 | (1.02–1.45) | Less education |
| Reconstruction type | (primary vs. revision) | 0.56 | (0.40–0.78) | Revision |
| Graft source | (BTB vs. hamstring) | N.S. | ||
| Prior ACL other knee | (yes vs. no) | N.S. | ||
| Medial meniscus repair | (no tear vs. repair) | N.S. | ||
| Medial meniscectomy | (no tear vs. 17% excised) | N.S. | ||
| (no tear vs. 33% excised) | N.S. | |||
| (no tear vs. 50% excised) | N.S. | |||
| Lateral meniscus | (no tear vs. no treatment) | N.S. | ||
| Lateral meniscus repair | (no tear vs. repair) | N.S. | ||
| Lateral meniscectomy | (no tear vs. 50% excised) | N.S. | ||
| (no tear vs. 67% excised) | N.S. | |||
| MFC cartilage | (nl/grade 1 vs. grade 4) | 0.47 | (0.24–0.92) | Grade 4 |
| (nl/grade 1 vs. grade 2) | N.S. | |||
| LFC cartilage | (nl/grade 1 vs. grade 3) | N.S. | ||
| (nl/grade 1 vs. grade 4) | N.S. | |||
| MTP cartilage | (grade 2 vs. grade 3/4) | N.S. | ||
| LTP cartilage | (nl/grade 1 vs. grade 2) | N.S. | ||
| (grade 2 vs. grade 3/4) | N.S. | |||
| Trochlea cartilage | (nl/grade 1 vs. grade 3/4) | N.S. |
Significant predictors of outcome for Marx Activity Level scores 6 years after ACL reconstruction (p<0.05). (MFC – medial femoral condyle, LFC – lateral femoral condyle, MTP – medial tibial plateau, LTP – lateral tibial plateau, nl – normal, N.S. – not significant)