Authors' contributions
S.M.S.: (corresponding author) (MD) was involved in sonographic examination and injection and writing the manuscript. M.M.A. (MD) helped in introducing idea of research and revising the manuscript. J.M.A. contributed to clinical assessment, analysis of data and manuscript writing. H. M. F. (MD) is the owner of patency right of lyophilized growth factors. H. A. N. (MD) shared in writing the manuscript and analysis of data. All authors read and approved the final manuscript.