Skip to main content

Advertisement

Table 1 Characteristics of patients in the progression group and the non-progression group at baseline and follow-up

From: Prediction of progression of damage to articular cartilage 2 years after anterior cruciate ligament reconstruction: use of aggrecan and type II collagen biomarkers in a retrospective observational study

Variables   Total (n = 62) Progression group (n = 15) Non-progression group (n = 47) p value
Baseline
 Age (years) Mean (SD) 27.6 (9.0) 31.1 (9.2) 26.5 (8.7) 0.083
 Duration from injury to ACL reconstruction (months) Mean (SD) 26.1 (37.8) 39.7 (49.8) 21.8 (32.6) 0.111
 Sex, female (%)   38.7 40 38.3 1
 High-grade meniscus damage (%)   58.1 66.7 55.3 0.553
 More than one grade III or IV lesion (%)   35.5 46.7 31.9 0.359
Follow-up
 More than grade I of Kellgren-Lawrence (%)   0 0 0 1
 Duration from reconstruction to removal (months) Mean (SD) 26.0 (7.8) 27.3 (11.7) 25.6 (6.2) 0.482
 BMI Mean (SD) 24.1 (3.1) 23.9 (2.9) 24.2 (3.2) 0.744
 Tegner activity level scale Mean (SD) 5.1 (2.2) 5.1 (2.5) 5.1 (2.1) 0.944
 Pivot shift test, positive (%)   18.3 6.7 22.2 0.262
 High-grade meniscus damage (%)   64.5 60.0 68.1 0.755
 More than one grade III or IV lesion (%)   40.3 100 21.3 <0.001
  1. Baseline, ACL reconstruction; Follow-up, implant removal; Progression group, patients with an increase (between baseline and follow-up) in the number of high-grade cartilage lesions (Outerbridge grades III and IV) by one score in any of the six compartments; Non-progression group, patients with no increase in the number of high-grade cartilage lesions; BMI body mass index; high-grade meniscus damage, complete meniscal tear or defect in more than half the meniscus; SD standard deviation. P < 0.05 was considered statistically significant