2015 ISAKOS Biennial Congress ePoster #1363

Functional Outcome of Anatomical Double-Bundle Versus Individual Bundle Remnant-Preserving Augmented Anterior Cruciate Ligament Reconstruction

Patrick S. H. Yung, MBChB, FRCS(Orth), FHKCOS, FHKAM, FRCS, Shatin, New Territories HONG KONG
Joseph Jeremy Hsi Tse Chang, MBChB, MRCS, MSc, Hong Kong HONG KONG
Kai-Ming Chan, MBBS, MCh(Orth), FRCPS(G), FRCS(E), FRCSEd(Orth) HONG KONG

The Chinese University of Hong Kong, Hong Kong, HONG KONG

FDA Status Not Applicable

Summary: This study demonstrated that clinical and functional outcomes of anatomical double-bundle versus individual bundle remnant-preserving augmented ACL reconstruction, showed similar results, and in particularly for proprioception assessment.

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Abstract:

Background

The purpose of this study is to compare the results of anatomical double-bundle versus individual bundle remnant-preserving augmented ACL reconstructions, in particularly looking into the proprioception recovery.

Methods

30 patients recruited, for those with complete tear of the ACL (both AM and PL bundles), debridement of the stump performed and followed by anatomical DBACL reconstruction. For those patients with individual AM bundle tear, with the remaining PL bundle in good shape and tension, isolated AM bundle reconstruction was performed with PL bundle remnant preserved. All of the patients were assessed within 2 weeks pre-operation, 9 months, 1 year after the operation, and at final assessment for clinical, biomechanical, and functional outcomes, in particularly for proprioception assessment.

Results

With an average follow up of 17 months (12-24 months), both groups showed significant improvement when compared with those performed before operation. There was no significant difference in the ROM, Lysholm, IKDC scores, and isokinetic muscle strength. The remnant-preserving group showed significant better AP stability in KT 1000, but there is no significant difference in Lachman, Anterior Drawer, and Pivot shift tests. Functionally, there was also no difference in the proprioception assessment by means of knee joint repositioning, Perturbed Single Leg Stance Test using Balance Master, as well as single-leg hop test between the two groups.

Conclusion

Clinical and functional outcomes of anatomical double-bundle versus individual bundle remnant-preserving augmented ACL reconstruction, showed similar results, and in particularly for proprioception assessment.