Comparison of postoperative biomechanical function between anatomic double-bundle and single-bundle ACL reconstructions using calcium phosphate-hybridized tendon grafts in goats - 30/03/17
, H. Fujie b, H. Nakajima c, M. Fukagawa b, S. Nomura c, M. Sakane d
Bienvenue sur EM-consulte, la référence des professionnels de santé.
Article gratuit.
Connectez-vous pour en bénéficier!
Abstract |
Background |
Calcium phosphate (CaP)-hybridized tendon grafts improved biomechanical function compared with untreated grafts after single-bundle (SB) anterior cruciate ligament (ACL) reconstruction. The purpose of this study was to compare the biomechanical function between anatomic double-bundle (DB) and single-bundle (SB) ACL reconstructions using CaP-hybridized tendon grafts at 6 months postoperatively in goats.
Hypothesis |
We hypothesized that the postoperative biomechanical function in the DB group will be better than that in the SB group.
Materials and methods |
Knee kinematics and in situ forces in the grafts under applied anterior tibial load (ATL) of 50N and internal tibial torque (ITT) of 2.0 Nm at full extension, and 60° and 90° of knee flexion, and the histology of the tendon–bone interface were compared between the DB group (n=6) and SB group (n=6).
Results |
The in situ forces under ATL in the DB group at full extension and 90°of knee flexion were greater than those in the SB group. The in situ forces under ITT in the DB group at full extension and 60°of knee flexion were greater than those in the SB group. The in situ forces on the posterolateral bundle of the grafts under ATL and ITT in the DB group at full knee extension were greater than those on the posterior half of the grafts in the SB group. The histology did not differ significantly between the groups.
Conclusions |
Although CaP-hybridized tendon grafts were used in both groups, the in situ forces under ATL and ITT in the DB group were greater than those in the SB group at 6 months postoperatively. The posterolateral bundle of the grafts in the DB group acted effectively against both ATL and ITT at full extension. The tendon-to-bone healing was similar in both groups.
Study design |
Controlled laboratory study. Level 2.
Le texte complet de cet article est disponible en PDF.Keywords : Anatomic double-bundle ACL reconstruction, Calcium phosphate hybridization, Biomechanical function, Tendon-to-bone healing
Plan
Vol 103 - N° 2
P. 239-243 - avril 2017 Retour au numéro
Article précédent
- Analgesia after ACL reconstruction: Hamstring donor-site injection versus intra-articular local anaesthetic injection
- B. Sonnery-Cottet, A. Saithna, A. Azeem, E. Choudja, J.B. Pic, J. Cabaton, M. Thaunat
- Can three-dimensional patient-specific cutting guides be used to achieve optimal correction for high tibial osteotomy? Pilot study
- M. Munier, M. Donnez, M. Ollivier, X. Flecher, P. Chabrand, J.-N. Argenson, S. Parratte
Bienvenue sur EM-consulte, la référence des professionnels de santé.