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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Am J Sports Med. 2019 Jul 18;47(10):2394–2401. doi: 10.1177/0363546519862279

Table 4.

Significant Predictors for 2-Year WOMAC Scores

Variable Stiffness Pain ADL
Positive Predictors (improved scores) • Baseline score 4.3
(3.4, 5.6);
p<0.001
4.0
(3.0, 5.3);
p<0.001
5.1
(3.8, 6.8);
p<0.001
• Time since last ACL Reconstruction (years) 1.8
(1.2, 2.6);
p=0.003
1.7
(1.1, 2.6);
p=0.001
1.9
(1.3, 2.8);
p=0.050
• Baseline Marx activity level 1.6
(1.1, 2.4);
p=0.007
• Lateral meniscus treatment: no treatment for tear 2.5
(1.3, 4.7);
p=0.008
• Femoral fixation (interference screw) 1.8
(1.1, 3.1);
p=0.032
• Tibial fixation (interference screw) 1.7
(1.2, 2.3);
p=0.029
1.4
(1.0, 2.0);
p=0.040
2.0
(1.1, 3.7);
p=0.024
• Surgeon’s years of experience 1.3
(1.0, 1.6);
p=0.022
Negative Predictors (worse scores) • Previous medial meniscectomy 0.7
(0.5, 0.9);
p=0.010
• Previous lateral meniscectomy 0.7
(0.4, 0.9);
p=0.021
0.6
(0.4, 0.9);
p=0.022
0.6
(0.4, 0.9);
p=0.024
• Trochlear groove chondrosis (grades 3/4) 0.6
(0.4, 0.96);
p=0.030
0.4
(0.2, 0.6);
p<0.001
• Patellar chondrosis (grades 3/4) 0.6
(0.4, 0.9);
p=0.017
• Surgeon’s opinion on cause of failure: traumatic 0.4
(0.1, 0.96);
p=0.042
• Surgeon’s opinion on cause of failure: tibial tunnel malposition 0.4
(0.2, 0.9);
p=0.037

Key: ADL = activities of daily living