TY - JOUR
T1 - Reconstruction of medial patello-femoral ligament: Comparison of two surgical techniques.
AU - Tei, Matteo Maria
AU - Placella, Giacomo
AU - Speziali, Andrea
AU - Cerulli, Giuliano Giorgio
AU - Criscenti, G.
AU - De Maria, C.
AU - Sebastiani, E.
AU - Tei, M.
AU - Placella, G.
AU - Speziali, A.
AU - Vozzi, G.
AU - Cerulli, G.
PY - 2016
Y1 - 2016
N2 - The medial patello-femoral ligament is considered the most important passive patellar stabilizer and its proper functionality is essential for the patello-femoral joint stability. In this work, 18 human knees were randomly divided into two groups and reconstructed through two different surgical techniques: the "Through tunnel tendon" and the "Double converging tunnel" reconstructions. Subsequently, the samples were mechanically tested to evaluate the structural properties of reconstructed femur-MPFL-Patella complex (rFMPC). Particular attention was given to maintain the anatomical orientation between the patella and the graft. Both procedures showed lower stiffness and higher ultimate strain and absorbed energy compared to the native MPFL, but the advantages of the double converging tunnel technique are related to the restoration of the native MPFL sail-shape, to a better stress distribution on the patella, to the use of a single interference screw as fixation device and to the simplicity, rapidity and cost-effectivity of the surgical procedure. The evaluation of the structural properties of rMPFL is fundamental to evaluate the adequacy of the different techniques to restore the physiological structural properties of the native MPFL.
AB - The medial patello-femoral ligament is considered the most important passive patellar stabilizer and its proper functionality is essential for the patello-femoral joint stability. In this work, 18 human knees were randomly divided into two groups and reconstructed through two different surgical techniques: the "Through tunnel tendon" and the "Double converging tunnel" reconstructions. Subsequently, the samples were mechanically tested to evaluate the structural properties of reconstructed femur-MPFL-Patella complex (rFMPC). Particular attention was given to maintain the anatomical orientation between the patella and the graft. Both procedures showed lower stiffness and higher ultimate strain and absorbed energy compared to the native MPFL, but the advantages of the double converging tunnel technique are related to the restoration of the native MPFL sail-shape, to a better stress distribution on the patella, to the use of a single interference screw as fixation device and to the simplicity, rapidity and cost-effectivity of the surgical procedure. The evaluation of the structural properties of rMPFL is fundamental to evaluate the adequacy of the different techniques to restore the physiological structural properties of the native MPFL.
KW - Ligament biomechanics
KW - Ligament reconstruction
KW - Medial patello-femoral ligament (MPFL)
KW - Structural properties
KW - Surgical techniques
KW - Ligament biomechanics
KW - Ligament reconstruction
KW - Medial patello-femoral ligament (MPFL)
KW - Structural properties
KW - Surgical techniques
UR - http://hdl.handle.net/10807/82952
UR - http://www.sciencedirect.com/science/article/pii/s1751616116000473
U2 - 10.1016/j.jmbbm.2016.02.009
DO - 10.1016/j.jmbbm.2016.02.009
M3 - Article
VL - 2016
SP - 272
EP - 278
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
SN - 1751-6161
ER -