2015 ISAKOS Biennial Congress ePoster #1347

Does the Central Anatomic Single-Bundle Reconstruction of the ACL Influence Rotational Movements in the Same Extent as the Double-Bundle Technique? A Clinical Study

Adel Safi, MD, PhD, Znojmo CZECH REPUBLIC
Radek Hart, MD, PhD, FRCS, Prof., Znojmo CZECH REPUBLIC
Martin Komzák, MD, Znojmo CZECH REPUBLIC
Hospital of Znojmo, Znojmo, CZECH REPUBLIC

FDA Status Not Applicable

Summary: The internal rotational stability of the knee joint after the anatomic SB technique is not sufficient.

Abstract:

Introduction

The objective of this study was to evaluate knee rotational stability at least 2 years after anatomic single-bundle anterior cruciate ligament (ACL) reconstruction (SB) and double-bundle ACL reconstruction (DB) in comparison with the contralateral healthy knee joint. The Cincinnati, Lysholm and IKDC scores were analysed too.

Methods

There were 40 patients in both group, the mean follow-up was 27 months. For all measurements, the navigation system OrthoPilot was used. Measurement started with the patient in the standing position in neutral rotation. Then, the patient achieved in 30° knee flexion under weight-bearing maximal external trunk rotation and returned to the neutral position. The same measurement was done for the internal trunk rotation. For the anterior-posterior stability, KT-1000 arthrometer was used. All measurements were repeated 3 times for each knee joint.

Results

After the DB reconstruction, the mean external rotation of the tibia (ER) was 8.2°and the internal rotation IR)was 10.2°. In the contralateral healthy knee joint, ER was 8.5°(p=0.597) and IR was 12.1° (p=0.064).
After the SB reconstruction, ER was 9.4°and IR was 13.1°. In the contralateral healthy knee joint, ER was 7.7° (p=0.066) and IR was 9,8°(p=0.005).
Anterior-posterior translation were in the same extend for both groups.

Conclusions

The data shows that the DB reconstruction of the ACL restores the rotational stability of the knee joint without any significant difference in comparison to the contralateral healthy knee (p?0.05). The main finding of this study is that the internal rotational stability of the knee joint after the anatomic SB technique is not sufficient.