{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T23:06:54Z","timestamp":1777676814220,"version":"3.51.4"},"reference-count":34,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2019,6,17]],"date-time":"2019-06-17T00:00:00Z","timestamp":1560729600000},"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":["HIP International"],"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:sec>\n                    <jats:title>Questions:<\/jats:title>\n                    <jats:p>Does surgical hip dislocation with drilling or bone grafting, cartilage treatment and femoral osteotomy in avascular necrosis of the femoral head (AVN) result in: (1) progression of osteonecrosis or osteoarthritis; (2) pain relief and improved function; and (3) subsequent surgery and complications?<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>We retrospectively reviewed 12 patients (13 hips, mean age 29 \u00b1 9\u2009years) undergoing surgical hip dislocation for AVN. Preoperative ARCO stages were: 1 hip ARCO II, 8 hips ARCO III early, 4 hips ARCO III late. Drilling was performed in 4 hips, 9 hips underwent curettage, drilling and autologous bone grafting. Cartilage was sutured in 5 hips, autologous matrix-induced chondrogenesis was performed in 3 hips, an osteochondral autograft was used in 1 hip. Femoral osteotomy was performed in 10 hips. Mean follow-up was 3 \u00b1 2\u2009years. Progression of AVN and osteoarthritis was assessed preoperatively and at latest follow-up using T\u00f6nnis and ARCO staging. Pain and function were assessed with the Merle d\u2019Aubign\u00e9-Postel score. Complications were graded according to Sink et al.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>1 hip had AVN progression and converted to THA. 9 hips showed no AVN- or advanced osteoarthritis progression and 3 hips improved at least 1 ARCO stage. The Merle d\u2019Aubign\u00e9-Postel score increased from preoperatively 14.1 \u00b1 3.2 to 16.6 \u00b1 1.2 ( p = 0.012). Subsequent surgery were performed in 3 hips, complications occurred in 3 hips.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Although the first results are promising a longer follow-up with more patients is needed to draw a definite conclusion regarding the joint preserving potential in AVN.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1120700019856010","type":"journal-article","created":{"date-parts":[[2019,6,17]],"date-time":"2019-06-17T07:00:26Z","timestamp":1560754826000},"page":"398-406","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Surgical hip dislocation with femoral osteotomy and bone grafting prevents head collapse in hips with advanced necrosis"],"prefix":"10.1177","volume":"30","author":[{"given":"Simon D","family":"Steppacher","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raphael","family":"Sedlmayer","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moritz","family":"Tannast","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Florian","family":"Schmaranzer","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Klaus A","family":"Siebenrock","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,6,17]]},"reference":[{"key":"bibr1-1120700019856010","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-35767-1_20"},{"key":"bibr2-1120700019856010","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.I.00575"},{"key":"bibr3-1120700019856010","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.99B10.BJJ-2017-0233.R2"},{"key":"bibr4-1120700019856010","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-017-5374-x"},{"key":"bibr5-1120700019856010","first-page":"115","author":"Sugioka Y","year":"1982","journal-title":"Clin Orthop Relat 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