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Table 3 Tegner activity score, Lysholm knee score, and side-to-side difference in anterior laxity by the KT-2000 arthrometer in patients with both Lachman test and pivot-shift test ≤ grade 1

From: Is it worth to perform initial non-operative treatment for patients with acute ACL injury?: a prospective cohort prognostic study

At 1-year follow-up P0L0
(n = 53, 100%)
P0L1
(n = 6, 100%)
P1L0
(n = 17, 100%)
P1L1
(n = 1, 100%)
Total
(n = 77, 100%)
Changes of the Tegner activity score
 Improved 0 0 0 0 0
 Maintained 27 (51%) 5 (83%) 7 (42%) 0 39 (51%)
 Decreased (−  1 level) 17 (32%) 1 (17%) 5 (29%) 1 (100%) 23 (30%)
 Decreased (−  2 level) 8 (15%) 0 5 (29%) 0 14 (18%)
 Decreased (− 3 level) 1 (2%) 0 0 0 1 (1%)
Tegner activity score
 Pre-injury 6.7 (range, 4–8) 7.3 (range, 7–8) 7.3 (range, 5–9) 8.0 6.9 (range, 4–9)
 Last follow-up 6.0 (range, 4–8) 7.2 (range, 7–8) 6.4 (range, 5–8) 7.0 6.2 (range, 4–8)
Lysholm knee score 91.2 (range, 72–100) 91.2 (range, 85–100) 91.4 (range, 68–100) 85 91.2 (range, 68–100)
Side-to-side difference (mm) 2.2 (range, 0–4.5) 2.8 (range, 1–4.5) 3.2 (range, 1.5–4.5) 4.5 2.5 (range, 0–4.5)
  1. L* Lachman test grade *, P* pivot-shift test grade * (i.e., P0L0 = pivot-shift test grade 0 and Lachman test grade 0)