This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).
This article has been retracted at the request of the Author.
The authors have plagiarized part of a paper that had appeared in BONE & JOINT RESEARCH (BJR), vol. 6 (2017) 399–404 (doi: https://doi.org/10.1302/2046-3758.67.BJR.2016-0255.R1). The name of the first author, Wei Zhang, was used without his permission, without authorisation before publication and without contribution to the paper. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.
Footnotes
Peer review under responsibility of King Saud University.