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Knee Surgery, Sports Traumatology, Arthroscopy

Published in:

01-08-2012 | Knee

Comparison of femoral graft bending angle and tunnel length between transtibial technique and transportal technique in anterior cruciate ligament reconstruction

Authors: Joon Ho Wang, Jae Gyoon Kim, Do Kyung Lee, Hong Chul Lim, Jin Hwan Ahn

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 8/2012

Abstract

Purpose

To investigate which technique would reduce bending stress at the femoral tunnel aperture and make short tunnel length after ACL reconstruction by comparing the femoral graft bending angle and tunnel length between the single-bundle (SB) transtibial (TT) and double-bundle (DB) transportal (TP) technique using three-dimensional-computed tomography using OsiriX^® imaging software.

Methods

Forty-nine patients underwent an ACL reconstruction using a SB TT (Group I, 20 patients) and DB TP (Group II, 29 patients) technique. Femoral graft bending angle and femoral tunnel length were measured by CT image using OsiriX^® imaging software. Groups I and II were compared, and statistical analysis was performed using SPSS software.

Results

The mean anteromedial (AM) and posterolateral (PL) femoral graft bending angle of group II (111.5 ± 8.8° and 118.9 ± 9.8°, respectively) was significantly more acute than that of group I (125.3 ± 11.1°) (P < 0.001, P = 0.04). The mean femoral tunnel length of group I was significantly longer than that of group II (P = 0.001).

Conclusions

The femoral graft bending angle and the femoral tunnel length of the TP technique performed in the maximally flexed knee position was more acute and shorter than those of the TT technique after ACL reconstruction. This might increase the bending stress at the femoral tunnel aperture and shorter graft length in the tunnel after an ACL reconstruction using TP technique compared to the TT technique.

Level of evidence

III.

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Title: Comparison of femoral graft bending angle and tunnel length between transtibial technique and transportal technique in anterior cruciate ligament reconstruction
Authors: Joon Ho Wang
Jae Gyoon Kim
Do Kyung Lee
Hong Chul Lim
Jin Hwan Ahn
Publication date: 01-08-2012
Publisher: Springer-Verlag
Published in: Knee Surgery, Sports Traumatology, Arthroscopy / Issue 8/2012
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-011-1781-9

At a glance: The STEP trials

Springer Medicine

Comparison of femoral graft bending angle and tunnel length between transtibial technique and transportal technique in anterior cruciate ligament reconstruction

Abstract

Purpose

Methods

Results

Conclusions

Level of evidence

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

Level of evidence

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