Luke Johnson<p>In the first article, published <a href="https://fedi.lukejohns.online/tags/openaccess" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openaccess</span></a> in the Journal of Pediatric Orthopaedics, we used upright MRI to see whether asphericity of the hip joint caused by Perthes' disease results in an increased potential for hip impingement, a mechanism known to cause hip pain and <a href="https://fedi.lukejohns.online/tags/arthritis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>arthritis</span></a> later in life. </p><p><a href="https://doi.org/10.1097/BPO.0000000000002949" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.1097/BPO.0000000000</span><span class="invisible">002949</span></a></p>