TY  - JOUR
PY  - 2005//
TI  - The effect of the tibial tunnel fixation level on the results of cyclic loading in anterior cruciate ligament reconstruction
JO  - Acta orthopaedica et traumatologica turcica
A1  - Taşer, Omer
A1  - Kocabey, Yavuz
A1  - Doral, Mahmut Nedim
A1  - Demirhan, Mehmet
A1  - Işikan, Erdem Ugur
A1  - Nyland, John
A1  - Sarban, Sezgin
A1  - Bozdaği, Ergun
A1  - Sünbüloğlu, Emin
SP  - 356
EP  - 360
VL  - 39
IS  - 4
N2  - OBJECTIVES: This study was designed to compare the biomechanical characteristics of non-anatomic (far from joint) and anatomic (close to joint) levels of tibial tunnel fixation with soft tissue graft using a soft tissue interference screw in anterior cruciate ligament (ACL) reconstruction. METHODS: Twelve bovine tibiae and digital extensor tendons were divided into two homogeneously equal groups after removing soft tissues. Tibial tunnels were prepared with a 7-mm drill with the use of an ACL guide adjusted to 45 degrees . Each tunnel was then dilated to 9 mm in 0.5 mm increments. Digital extensor tendons were fixed at non-anatomic (group I) or anatomic (group II) tibial tunnel levels with a soft tissue metal interference screw, 9 x 30 mm in size. All the specimens were cycled 500 times from 50 to 250 N with 1 Hz frequency in a servo-hydraulic testing machine followed by ultimate load at-failure testing at a rate of 20 mm/min. Statistical analyses were made using the Mann-Whitney U-test. RESULTS: The mean screw insertion torque values were 8.2+/-2.4 Nm and 7.8+/-2.3 Nm in groups I and II, respectively (p=0.88). The mean values of graft displacement (1.9+/-0.75 mm versus 2.2+/-1.2 mm, p=0.63) and stiffness (132.72+/-10.93 N/mm versus 125.14+/-15.93 N/mm, p=0.63) did not differ significantly. CONCLUSION: The biomechanical properties of ACL reconstruction with soft tissue graft fixation using a soft tissue interference screw are not influenced by the level of tibial tunnel fixation.<p /> <p>Language: tr</p> 
LA  - tr
SN  - 1017-995X
UR  - http://dx.doi.org/
ID  - ref1
ER  -