Funding for this research was provided by:
Arthritis Research UK (19429)
Received: 29 May 2019
Accepted: 6 June 2019
First Online: 19 June 2019
Change Date: 11 December 2019
Change Type: Correction
Change Details: In the original publication of this article  the figures and captions were linked incorrectly. In this correction article the figures & captions are correctly published.
Ethics approval and consent to participate
: The bone marrow samples were collected from the femoral heads removed during hip replacements surgeries with permission of Newcastle and North Tyneside Research Ethics Committee (REC 09/H0906/72). Informed consents were obtained from patients at the Freeman Hospital (Newcastle-upon-Tyne, UK) prior to their hip replacement operations. All procedures used in this study were performed according to approved ethical guideline.
: Not applicable.
: The authors declare that they have no competing interests.