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Table 2 Evaluation of knee instability

From: Anterior cruciate ligament reconstruction with quadriceps tendon-patellar bone allograft: matched case control study

  Preoperative   Postoperative 2 years  
Allograft group Autograft group p-value Allograft group Autograft group p-value
Anterior drawer test    0.826    0.652
 Grade 0 5 (11.1%) 4 (8.9%)   29 (64.4%) 32 (71.1%)  
 Grade 1 16 (35.6%) 15 (33.3%)   16 (35.6%) 13 (28.9%)  
 Grade 2 17 (37.8%) 21 (46.7%)   0 (0.0%) 0 (0.0%)  
 Grade 3 7 (15.6%) 5 (11.1%)   0 (0.0%) 0 (0.0%)  
Lachman test    0.717    0.404
 Grade 0 1 (2.2%) 3 (6.7%)   26 (57.8%) 29 (64.4%)  
 Grade 1 17 (37.8%) 14 (31.1%)   18 (40.0%) 15 (33.3%)  
 Grade 2 19 (42.2%) 19 (42.2%)   1 (2.2%) 1 (2.2%)  
 Grade 3 8 (17.8%) 9 (20.0%)   0 (0.0%) 0 (0.0%)  
Pivot shift test    0.258    0.823
 Grade 0 6 (13.3%) 4 (8.9%)   31 (68.9%) 29 (64.4%)  
 Grade 1 16 (35.6%) 22 (48.9%)   14 (31.1%) 16 (35.6%)  
 Grade 2 21 (46.7%) 14 (31.1%)   0 (0.0%) 0 (0.0%)  
 Grade 3 2 (4.4%) 5 (11.1%)   0 (0.0%) 0 (0.0%)  
KT-2000 (mm)a 4.8 ± 1.9 4.5 ± 1.8 0.392 1.8 ± 1.6 1.4 ± 1.2 0.235
KT-2000 (No. of patients)       
  < 3 mm 2 (4.4%) 5 (11.1%)   39 (86.7%) 34 (75.6%)  
 3 – 5 mm 26 (57.8%) 30 (66.7%)   6 (13.3%) 11 (24.4%)  
  > 5 mm 17 (37.8%) 10 (22.2%)   0 (0.0%) 0 (0.0%)  
  1. aValues are expressed as mean ± standard deviation