2025 ISAKOS Biennial Congress ePoster
Isometric Points For Reconstruction Of Anterior Band Of Inferior Glenohumeral Using Long Head Of Biceps As A Graft: A Finite Element Analysis And Arthroscopic Cadaveric Demonstration.
Ayyappan Viajayachandran Nair, MBBS, D Ortho, DNB Ortho, MNAMS, Bengaluru, Karnataka INDIA
Sreejith Thampy J, MS ortho, Thiruvananthapuram , Kerala INDIA
Maythilisharan Rambhojun, MS, Quatre Bornes MAURITIUS
Pavan Krishna, MS, Bangalore, karanataka INDIA
Ajit Govind Jangale, M.B.B.S ,M.S , MRCS ORTHOPAEDICS, Nashik, maharashtra INDIA
Prince Shanavas Khan, D' ORTHO, M.S. ORTHO, Kollam, KERALA INDIA
Bangalore shoulder Institute and Manipal Hospitals, Bangalore, Karnataka, INDIA
FDA Status Not Applicable
Summary
ISOMETRIC POINTS FOR RECONSTRUCTION OF ANTERIOR BAND OF INFERIOR GLENOHUMERAL USING LONG HEAD OF BICEPS AS A GRAFT: A FINITE ELEMENT ANALYSIS AND ARTHROSCOPIC CADAVERIC DEMONSTRATION.
ePosters will be available shortly before Congress
Abstract
Background
The inferior glenohumeral ligament (IGHL) comprising the anterior and posterior bands with interposing axillary pouch is an important static stabilizer of anterior translation and external rotation (ER) in the 90-degree abduction position. There is no literature available to determine the tensile stress and points of fixation of the graft where the tensile stress acting on the graft is under the limits of the tensile properties of the graft used
Abstract
Methods
Using Finite element method analysis (FEM) of the long head of the Biceps tendon (LHBT) with Modelling and Simulation Process, the ultimate tensile strength of the LHBT at the different clock positions of the humeral head attachment and angular positions of the humerus were determined through a combination of Design of Experiments and Simulation using ANSYS (Analysis system) software.
Results
Through FEM simulations using the ANSYS software, it was concluded that the clock position of 7:30 would be appropriate to fix the biceps Tendon on the humerus. The tensile stress induced in the IGHL at 7:30 on the humerus, at 90° abduction with 90° rotation
of the humerus as well as at 120° abduction with 90° rotation of the humerus was verified for
Conclusions
Reconstruction of anterior band of IGHL using LHBT in its isometric points found in this study can provide a solution to manage anterior instability anatomically rather than non-anatomical procedures like Dynamic anterior stabilisation. This will be an anatomical procedure which will bridge the gap between anatomical bankarts procedure and non-anatomical latarjet procedure. The LHBT can be suitable graft material for the anterior band of the IGHL reconstruction. The optimal fixation points of the graft which recorded the least tensile stress on the LHBT were the 3 o’clock position on the glenoid and 7.30 o’clock position on the humerus as observed from our study.