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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: J Orthop Res. 2017 Apr 28;35(7):1366–1374. doi: 10.1002/jor.23557

Table 2.

Significant predictors and confidence interval outcomes for KOOS symptom scores 6 years after ACL reconstruction

Predictor (comparison) Coefficient (95% CI) Worse Outcome
Baseline score 2.11 (1.67–2.66) Lower baseline
Follow up time (2 years vs. 6 years) 1.63 (1.28–2.07) 2 years
Age N.S.
Gender (male vs. female) N.S.
BMI (23 vs. 28) 0.88 (0.78–1.00) Higher BMI
Smoking status (never vs. quit) 0.65 (0.47–0.91) Quit smoking
(never vs. current) 0.58 (0.42–0.79) Current smoker
Education (12 vs. 16 years) 1.48 (1.21–1.81) Less education
Baseline Marx N.S.
Reconstruction type (primary vs. revision) 0.55 (0.40–0.77) Revision
Graft source (BTB vs. hamstring) N.S.
Prior ACL other knee (yes vs. no) N.S.
Medial meniscus repair (no tear vs. repair) 0.62 (0.47–0.83) repair
Medial meniscectomy (no tear vs. 17% excised) 0.57 (0.38–0.86) excision
(no tear vs. 33% excised) N.S.
(no tear vs. 50% excised) N.S.
Lateral meniscus (no tear vs. no treatment) 1.55 (1.21–1.99) No tear
Lateral meniscus repair (no tear vs. repair) N.S.
Lateral meniscectomy (no tear vs. 50% excised) 1.95 (1.13–3.38) No tear
(no tear vs. 67% excised) N.S.
MFC cartilage (nl/grade 1 vs. grade 4) N.S.
(nl/grade 1 vs. grade 2) N.S.
LFC cartilage (nl/grade 1 vs. grade 3) 0.64 (0.42–1.00) Grade 3
(nl/grade 1 vs. grade 4) 0.51 (0.28–0.97) Grade 4
MTP cartilage (grade 2 vs. grade 3/4) 0.30 (0.12–0.80) Grade 3/4
LTP cartilage (nl/grade 1 vs. grade 2) N.S.
(grade 2 vs. grade 3/4) N.S.
Trochlea (nl/grade 1 vs. grade 3/4) N.S.

Significant predictors of outcome for KOOS symptom 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)