Kinematics of ACL and anterolateral ligament. Part II: anterolateral and anterior cruciate ligament reconstruction

Tommaso Bonanzinga, Cecilia Signorelli, Alberto Grassi, N. Lopomo, M. Jain, M. Mosca, F. Iacono, M. Marcacci, Stefano Zaffagnini

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: 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. Methods: 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). Results: 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). Conclusion: 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.

Original languageEnglish
Pages (from-to)1062-1067
Number of pages6
JournalKnee Surgery, Sports Traumatology, Arthroscopy
Volume25
Issue number4
DOIs
Publication statusAccepted/In press - Mar 9 2017

Fingerprint

Anterior Cruciate Ligament Reconstruction
Ligaments
Biomechanical Phenomena
Knee
Joints
Torque
Students

Keywords

  • Anterolateral
  • Combined lesions
  • Laxity
  • Navigation system
  • Reconstruction

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Kinematics of ACL and anterolateral ligament. Part II : anterolateral and anterior cruciate ligament reconstruction. / Bonanzinga, Tommaso; Signorelli, Cecilia; Grassi, Alberto; Lopomo, N.; Jain, M.; Mosca, M.; Iacono, F.; Marcacci, M.; Zaffagnini, Stefano.

In: Knee Surgery, Sports Traumatology, Arthroscopy, Vol. 25, No. 4, 09.03.2017, p. 1062-1067.

Research output: Contribution to journalArticle

Bonanzinga, Tommaso ; Signorelli, Cecilia ; Grassi, Alberto ; Lopomo, N. ; Jain, M. ; Mosca, M. ; Iacono, F. ; Marcacci, M. ; Zaffagnini, Stefano. / Kinematics of ACL and anterolateral ligament. Part II : anterolateral and anterior cruciate ligament reconstruction. In: Knee Surgery, Sports Traumatology, Arthroscopy. 2017 ; Vol. 25, No. 4. pp. 1062-1067.
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AU - Bonanzinga, Tommaso

AU - Signorelli, Cecilia

AU - Grassi, Alberto

AU - Lopomo, N.

AU - Jain, M.

AU - Mosca, M.

AU - Iacono, F.

AU - Marcacci, M.

AU - Zaffagnini, Stefano

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N2 - Purpose: 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. Methods: 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). Results: 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). Conclusion: 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.

AB - Purpose: 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. Methods: 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). Results: 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). Conclusion: 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.

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