{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T17:05:51Z","timestamp":1789491951398,"version":"build-2803163510"},"reference-count":60,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T00:00:00Z","timestamp":1716249600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T00:00:00Z","timestamp":1716249600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. exp. orthop."],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Patellofemoral joint instability (PFJI) can surgically be treated with a multitude of approaches, depending on the underlying pathology. In the presence of increased femoral anteversion, some authors have reported good results with a derotational distal femoral osteotomy (DeDFO). The purpose of the study was to investigate the indications, outcomes and complication rate of DeDFO for PFJI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A systematic review was performed according to the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta\u2010analyses) by searching Medline, Embase, Web of Science and Cochrane Library databases through 1 December\u00a02023. Included were levels 1\u20134 clinical studies of skeletally mature patients undergoing a DeDFO for PFJI irrespective of concomitant procedures. Study characteristics, indications, radiological and clinical outcomes, surgical technique and concomitant procedures, re\u2010dislocation and complication rate were all analysed, as was methodological quality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 12 studies including 310 patients (325 knees) were included. Three studies were cohort studies, all others were case series. The mean patient age across the studies was 22 years, and the mean follow\u2010up was 29.4 months. Femoral anteversion cut\u2010off was between 20\u00b0 and 30\u00b0. Every study included at least one concurrent soft tissue, bony or combined procedure. Across all studies, one case of re\u2010dislocation was reported (0.3%) and four implant or osteotomy\u2010related complications (1.2%) were reported. All studies reported a statistically significant increase in clinical scores.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This systematic review of DeDFO for patellofemoral instability in the presence of increased femoral anteversion demonstrates promising clinical results and an extremely low dislocation and complication rate. The heterogeneity of the cut\u2010off in anteversion and concomitant procedures, especially tibial tubercle osteotomy with seemingly identical results, indicates the need for high\u2010quality evidence for treating patellofemoral instability. Based upon this systematic review, we strongly recommend that DeDFO be added to the \u2018menu \u00e0 la carte\u2019 of PFJI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III Systematic Review.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jeo2.12032","type":"journal-article","created":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T07:14:03Z","timestamp":1716275643000},"source":"Crossref","is-referenced-by-count":13,"title":["Promising results following derotational femoral osteotomy in patellofemoral instability with increased femoral anteversion: A systematic review on current indications, outcomes and complication rate"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0819-4706","authenticated-orcid":false,"given":"Antonio","family":"Klasan","sequence":"first","affiliation":[{"name":"AUVA UKH Steiermark  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