{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T21:25:31Z","timestamp":1777497931887,"version":"3.51.4"},"reference-count":34,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2007,9,1]],"date-time":"2007-09-01T00:00:00Z","timestamp":1188604800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2007,9,1]],"date-time":"2007-09-01T00:00:00Z","timestamp":1188604800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Children's Orthopaedics"],"published-print":{"date-parts":[[2007,9]]},"abstract":"<jats:p>\n                    <jats:italic toggle=\"yes\">Introduction and aims<\/jats:italic>\n                    A single hip screw is the recommended method of fixation for slipped upper femoral epiphysis (SUFE). Current practice favours the placement of the screw in the centre of the femoral head on both anteroposterior and lateral planes to avoid the risks of chondrolysis and avascular necrosis (AVN). We investigated the correlation between different positions of the screw in the femoral head and the prevalence of AVN, chondrolysis, late slippage and the time to epiphyseal closure.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic toggle=\"yes\">Methods<\/jats:italic>\n                    The clinical notes and radiographs of 38 consecutive patients (61 hips) who underwent single screw fixation for SUFE were evaluated retrospectively with a mean follow-up of 36 months. Two-way ANOVA and the post hoc test was performed to analyse the correlation between the different variables and the outcome at the 5% level of significance.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic toggle=\"yes\">Results<\/jats:italic>\n                    There were 16 acute slips, 18 chronic slips and ten acute-on-chronic slips. Seventeen slips were treated prophylactically. Mild slip was encountered in 39 hips, moderate slip in four and severe slip in one. The central\u2013central position was only achieved in 51% of cases. The most significant results of the study were as follows: (1) no significant difference between the time to epiphyseal closure and the position of the screw, and (2) no late slippage or chondrolysis was observed in our series.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic toggle=\"yes\">Conclusion<\/jats:italic>\n                    Our results showed that the positioning of the screw other than in the centre of the femoral head has the ability to provide physeal stability and has no correlation with the timing to closure of the epiphysis and the risk of avascular necrosis or chondrolysis. We therefore recommend that other positions be considered if the \u201coptimal central\u2013central position\u201d is not initially achieved \u2013 specifically for the treatment of mild slip \u2013 as the potential hazards from several attempts to achieve the optimum position outweigh the benefits.\n                  <\/jats:p>","DOI":"10.1007\/s11832-007-0036-2","type":"journal-article","created":{"date-parts":[[2007,8,9]],"date-time":"2007-08-09T08:40:32Z","timestamp":1186648832000},"page":"181-186","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Screw placement in slipped upper femoral epiphysis: Is good the enemy of better?"],"prefix":"10.1177","volume":"1","author":[{"given":"Wiqqas","family":"Jamil","sequence":"first","affiliation":[{"name":"St James's University Hospital, Leeds UK"},{"name":"20, Braybrook Drive, BL1 5XA, Bolton UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamad K.","family":"Allami","sequence":"additional","affiliation":[{"name":"St James's University Hospital, Leeds UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bobin","family":"Varghese","sequence":"additional","affiliation":[{"name":"St James's University Hospital, Leeds UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammed","family":"Almaiyah","sequence":"additional","affiliation":[{"name":"James Cook University Hospital, Middlesbrough UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Giannoudis","sequence":"additional","affiliation":[{"name":"St James's University Hospital, Leeds UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2007,9]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-196547060-00001"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197759080-00013"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/01241398-198501000-00008"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1258\/jrsm.95.7.356"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199601000-00012"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199274060-00001"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199274060-00002"},{"key":"e_1_3_1_9_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199308000-00002"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.86B5.14397"},{"key":"e_1_3_1_11_2","first-page":"97","article-title":"Slipped upper femoral epiphysis. 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