Observational Study
Copyright ©The Author(s) 2024.
World J Orthop. Aug 18, 2024; 15(8): 744-753
Published online Aug 18, 2024. doi: 10.5312/wjo.v15.i8.744
Table 1 Patient demographics
Item
n = 87
Age (years), mean (range)31.5 (12.0-62.0)
Sex (male:female)60:27
Laterality (left:right)44:43
Graft type (hamstring:BTB)60:27
Height (cm), mean ± SD174.3 ± 8.8
Weight (kg), mean ± SD84.1 ± 18.0
BMI (kg/m2), mean ± SD27.5 ± 5.4
Table 2 Post-operative radiological parameters
Item
Median (inter-quartile range)
Coronal position tibial tunnel (%)46.3 (42.7-49.6)
Coronal angle tibial tunnel (º)70.8 (66.7-76.4)
Coronal angle femoral tunnel (º)45.7 (39.8-52.0)
Sagittal position tibial tunnel (%)44.8 (38.4-54.5)
Transplant orientation to joint (º)68.3 (60.7-72.7)
Position along Blumensaat’s line (%)47.2 (36.3-53.8)
Angle of femoral tunnel to femur (º)38.9 (35.2-43.7)
Table 3 Post-operative patient reported outcome measures data
Item
Median (inter-quartile range)
KOOS pain89 (78-97)
KOOS symptom79 (68-86)
KOOS ADL97 (90-100)
KOOS sport/rec75 (60-85)
KOOS QoL63 (44-75)
KOOS overall81 (70-87)
IKDC75 (64-86)
Lysholm87 (76-91)
Tegner5 (4-7)
EQ-5D index0.837 (0.728-1.000)
EQ-5D VAS85 (70-90)
SF-12 MCS53 (45-58)
SF-12 PCS54 (47-57)
Table 4 Comparison of post-operative patient reported outcome measures with EndoButton position

Anterior, median (IQR)
Middle, median (IQR)
Posterior, median (IQR)
P value1
H
KOOS pain88 (73-97)85 (67-95)88 (82-91)0.7480.6
KOOS symptom79 (68-89)79 (57-83)83 (68-88)0.6121.0
KOOS ADL98 (87-100)92 (71-97)95 (92-96)0.2273.0
KOOS sport/rec78 (61-85)73 (45-75)73 (51-75)0.3931.9
KOOS QoL57 (25-80)56 (31-65)57 (40-69)0.8200.4
KOOS overall81 (64-85)77 (59-82)79 (67-83)0.4401.6
IKDC75 (53-77)69 (56-77)71 (64-72)0.6640.8
Lysholm88 (71-94)85 (74-89)83 (74-89)0.7220.7
Tegner5 (3-7)5 (3-7)4 (2-5)0.4541.6
EQ-5D index1 (0.746-1.000)0.750 (0.657-0.919)0.704 (0.668-0.810)0.0974.7
EQ-5D VAS74 (61-84)88 (64-91)73 (70-86)0.1613.6
SF-12 MCS51 (47-59)54 (40-59)54 (37-58)0.9640.1
SF-12 PCS55 (50-57)52 (35-56)46 (44-47)0.2662.7
Table 5 Correlation between post-operative patient reported outcome measures and radiological parameters1


Coronal position TT
Coronal angle TT
Coronal angle FT
Sagittal position TT
TOJ
Position along Blumensaat’s line
Angle of FT to femur
EndoButton position
KOOS painrho0.150-0.1600.0400.2000.0300.3700.090-0.090
P value0.2970.2510.8010.1580.8090.1090.6030.621
KOOS symptomrho0.030-0.150-0.0300.210-0.050-0.0500.060-0.050
P value0.8280.2850.8180.1270.7090.8230.7360.778
KOOS ADLrho0.093-0.1400.1900.200-0.0600.140-0.150-0.240
P value0.5070.3170.1780.1500.6880.5480.4100.170
KOOS sport/recrho0.110-0.0400.2000.1200.0100.3200.030-0.220
P value0.4360.7710.1660.4100.9440.1900.8640.220
KOOS QoLrho0.230-0.1100.2000.430-0.2000.0800.010-0.020
P value0.0970.4410.1470.002a0.1570.7350.9560.928
KOOS overallrho0.170-0.0400.1600.250-0.0900.2300.020-0.140
P value0.2200.7570.2550.0800.5510.3440.9190.423
IKDCrho0.180-0.1000.1500.2600.0700.2600.170-0.160
P value0.2020.5170.2880.0600.6350.2680.3580.381
Lysholmrho0.010-0.210-0.1100.200-0.0200.2900.290-0.140
P value0.9210.1390.4460.1660.8980.2320.1050.453
Tegnerrho-0.0400.200-0.0200.2000.1400.1300.130-0.180
P value0.7660.1780.9130.9000.3330.5820.5000.355
EQ-5D indexrho0.060-0.150-0.0100.260-0.1000.3100.070-0.380
P value0.6590.2850.9330.0680.4910.1920.6980.028a
EQ-5D VASrho0.0300.020-0.0800.360-0.1800.0100.1300.240
P value0.8200.8910.5660.010a0.2130.9620.4610.174
SF-12 MCSrho0.000-0.140-0.0700.110-0.0100.1100.0400.050
P value0.9990.3390.6500.4590.9560.6410.8220.797
SF-12 PCSrho0.170-0.1100.1200.220-0.1000.290-0.070-0.280
P value0.2440.4670.4050.1440.5240.2230.7320.129