Authors’ contributions
The author contribution is as follows: W.P developed the evaluated surgery approach and conceived this study, J.C. and Y. Z undertook data collection, data analysis and drafted the manuscript, K.Y., Q.L. and M.S. participated in surgery approaches planning, P.Z. and D.L. provided ultrasound and MRI examination suggestions, S.Y. reconciled nursery service, Y.H. coordinated institutional support, and Z.W. instructed the manuscript revision. We request to include all the authors in this study.