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- Title
Kinematics of ACL and anterolateral ligament. Part II: anterolateral and anterior cruciate ligament reconstruction.
- Authors
Bonanzinga, T.; Signorelli, C.; Grassi, A.; Lopomo, N.; Jain, M.; Mosca, M.; Iacono, F.; Marcacci, M.; Zaffagnini, S.
- Abstract
<bold>Purpose: </bold>To quantify the influence of Single-Bundle with Lateral Plasty and Double-Bundle reconstruction on static and dynamic laxity in combined ACL- and ALL-deficient knees.<bold>Methods: </bold>The study included 10 fresh-frozen human knees. The joints were analyzed in the following conditions: ACL + ALL resection, Single-Bundle with Lateral Plasty (SBLP) reconstruction, Double-Bundle (DB) reconstruction. Testing parameters were: anterior displacement at 30° and 90° of flexion (AP30, AP90) applying a manual maximum load; internal rotation at 30° and 90° of flexion (INT30, INT90) applying a 5 Nm torque and acceleration and internal rotation Pivot-Shift (PS) test. Kinematics was acquired by a navigation system. Paired Student's t test was conducted to assess statistical difference (P < 0.05).<bold>Results: </bold>At both 30° and 90° of knee flexion, both SBLP and DB surgical techniques showed a significant reduction (P < 0.01) of anterior-posterior tibial displacement compared to the resection of ACL + ALL. At 30° on knee flexion it is the SBLP that allows the greatest reduction of internal rotational laxity when compared to DB reconstruction. Concerning the PS test, only SBPL procedure had a significant laxity decrease considering the acceleration reached by the joint when compared with the ACL + ALL state (P < 0.01).<bold>Conclusion: </bold>Clinical relevance of this study is that the internal rotation and PS test were more efficiently controlled by the SBLP technique than by the DB one at both 30° and 90° of flexion in case of ACL + ALL lesions.
- Subjects
ANTERIOR cruciate ligament surgery; KNEE surgery; JOINT hypermobility; RANGE of motion of joints; KINEMATICS; ARTICULAR ligament surgery; ANTERIOR cruciate ligament; ARTICULAR ligaments; DEAD; KNEE; ORTHOPEDIC surgery; ROTATIONAL motion; PHYSIOLOGY
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2017, Vol 25, Issue 4, p1062
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-017-4496-8