{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T05:40:23Z","timestamp":1756359623238,"version":"3.44.0"},"reference-count":10,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:p>This is the first reported case of bilateral sleeve fractures of the patellae in a child with crouch gait. A 12-year-old boy with hereditary spastic paraparesis (HSP), who was found to have mid-stance crouch of 20\u00b0 on previous gait analysis, presented with pain of gradual onset and limited mobility. There was no history of trauma. Three-dimensional gait analysis showed that extensor mechanism function during loading response was intact, but knee flexion in swing was significantly reduced, indicating protective guarding by rectus femoris. X-rays showed bilateral minimally displaced sleeve fractures of the patellae. These were treated with immobilisation in cylinder casts in extension for 4\u2005weeks. Follow-up X-rays showed that the fractures had successfully united and the patient progressed to full weight bearing and mobility as tolerated.<\/jats:p>","DOI":"10.1136\/bcr-2013-202217","type":"journal-article","created":{"date-parts":[[2013,12,4]],"date-time":"2013-12-04T06:03:29Z","timestamp":1386137009000},"page":"bcr2013202217","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Bilateral sleeve fractures of the patella in a 12-year-old boy with hereditary spastic paraparesis and crouch gait"],"prefix":"10.1136","volume":"2013","author":[{"given":"Ailish","family":"Malone","sequence":"first","affiliation":[{"name":"Central Remedial Clinic, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Damien","family":"Kiernan","sequence":"additional","affiliation":[{"name":"Central Remedial Clinic, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tim","family":"O Brien","sequence":"additional","affiliation":[{"name":"Central Remedial Clinic, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2013,12,4]]},"reference":[{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2011.04.009"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.2","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2011.01.009"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.3","first-page":"23","article-title":"Are patients with hereditary spastic paraplegia different from patients with spastic diplegia during walking? Gait evaluation using 3D gait analysis","volume":"22","author":"Cimolin","year":"2007","journal-title":"Funct Neurol"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.4","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejpn.2010.07.009"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.5","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.86B2.13878"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.6","doi-asserted-by":"publisher","DOI":"10.1002\/ca.20976"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.7","doi-asserted-by":"crossref","first-page":"pii: bcr2012008120","DOI":"10.1136\/bcr-2012-008120","article-title":"Knee extensor disruption in mild diplegic cerebral palsy: a risk for adolescent athletes","volume":"2013","author":"Elhassan","year":"2013","journal-title":"BMJ Case Rep"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.8","doi-asserted-by":"crossref","first-page":"pii: bcr2013009717","DOI":"10.1136\/bcr-2013-009717","article-title":"A greenstick fracture of the patella: a unique fracture in CP crouch gait","volume":"2013","author":"Elhassan","year":"2013","journal-title":"BMJ Case Rep"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.9","doi-asserted-by":"crossref","first-page":"pii: bcr2013010337","DOI":"10.1136\/bcr-2013-010337","article-title":"Bilateral knee extensor disruption in severe crouch gait","volume":"2013","author":"Elhassan","year":"2013","journal-title":"BMJ Case Rep"},{"key":"2025082722150471000_2013.dec04_1.bcr2013202217.10","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2012.07.028"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2013-202217","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T05:15:14Z","timestamp":1756358114000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2013-202217"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,12,4]]},"references-count":10,"alternative-id":["10.1136\/bcr-2013-202217"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2013-202217","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2013,12,4]]}}}