{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T06:08:21Z","timestamp":1790057301356,"version":"4.0.1"},"reference-count":40,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"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":["Am J Sports Med"],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Femoroacetabular impingement (FAI) is a condition caused by repetitive abutment of a morphologically abnormal proximal femur and\/or acetabulum that may result in chondral and labral pathology. An understanding of radiographic parameters associated with successful primary surgery has not been well established.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To determine preoperative radiographic parameters that predict reoperation for FAI and correlate radiographic measurements with outcomes in these patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Case-control study; Level of evidence, 3.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A prospectively collected institutional registry of adolescent patients (age, &lt;19 years) who underwent surgery for FAI (arthroscopic\/open) was reviewed. Preoperative standing anteroposterior pelvic radiographs were analyzed for femoroepiphyseal acetabular roof (FEAR) index, as well as lateral center-edge angle (LCEA) and alpha, T\u00f6nnis, and Sharp angles. Patient-reported outcomes (PROs) (modified Harris Hip Score, Hip disability and Osteoarthritis Outcome Score) were analyzed preoperatively and at 1- and 2-year followup. Radiographic indication of risk for reoperation was evaluated using receiver operating characteristic (ROC) analysis. Spearman correlation was calculated between radiographic measurements and PROs at 2 years postoperatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>A total of 81 patients (91 hips) underwent primary surgery (57 surgical dislocations vs 34 arthroscopies) for FAI. The mean age at time of primary operation was 16.23 years (range, 10.4-19.6 years) (73.6% female). Eleven hips (12.1%) underwent reoperation at a mean of 20.6 months from primary surgery. The LCEA, FEAR index, T\u00f6nnis angle, and Sharp angle before index surgery were significantly different ( P &lt; .05) between patients who underwent reoperation and those who did not. ROC analysis indicated that LCEA &lt;22\u00b0, FEAR index &gt;\u20138.7\u00b0, T\u00f6nnis angle &gt;6.0\u00b0, and Sharp angle &gt;44\u00b0 were predictors for increased risk of reoperation. Using the cutoff values from the ROC analysis in this series, 43% of patients with an LCEA \u226422\u00b0 had a repeat procedure, while only 8% of those with an LCEA &gt;22\u00b0 had a repeat procedure. Similar trends were seen with the other aforementioned acetabular radiographic measurements (FEAR index, T\u00f6nnis angle, Sharp angle). Patients who did not require a reoperation demonstrated significant improvement in all PRO categories from their preoperative to 2-year postoperative visits ( P &lt; .0001).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>In patients undergoing treatment for FAI, a reoperation was associated with radiographic signs of hip dysplasia, indicating that patients with a shallower acetabulum are at risk for a repeat operation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03635465221147062","type":"journal-article","created":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T08:01:47Z","timestamp":1677657707000},"page":"687-693","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Radiographic Predictors of Reoperation in Adolescents Undergoing Hip Preservation Surgery for Femoroacetabular Impingement"],"prefix":"10.1177","volume":"51","author":[{"given":"Philip A.","family":"Serbin","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tyler R.","family":"Youngman","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin L.","family":"Johnson","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philip L.","family":"Wilson","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dan","family":"Sucato","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Podeszwa","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henry B.","family":"Ellis","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, Texas, USA"},{"name":"Department of Orthopaedic Surgery, Texas Scottish Rite for Children, Dallas, Texas, 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