{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T15:05:08Z","timestamp":1782399908467,"version":"3.54.5"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,10,31]],"date-time":"2017-10-31T00:00:00Z","timestamp":1509408000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2017,10,31]],"date-time":"2017-10-31T00:00:00Z","timestamp":1509408000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2017,10,31]],"date-time":"2017-10-31T00:00:00Z","timestamp":1509408000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":["clinicalkey.jp","clinicalkey.com","clinicalkey.es","arthroscopyjournal.org","clinicalkey.fr","clinicalkey.com.au","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The primary purpose of this study was to report the prevalence of femoral head articular damage in patients with a central acetabular osteophyte (CAO) that was identified during hip arthroscopy and compare it with that in a matched control group without a CAO. A secondary purpose was to identify rates of coexisting intra\u2010articular pathology in both patient groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Intraoperative data were collected prospectively on all hip arthroscopy patients at our institution between 2008 and 2015. The inclusion criteria for this study were CAOs identified during hip arthroscopy for a labral tear and\/or femoroacetabular impingement. The exclusion criteria were T\u00f6nnis grade greater than 0, previous hip conditions, and prior surgical interventions. The matched control group was selected based on sex, age \u00b1 5\u00a0years, body mass index, and Workers' Compensation claim at a 3:1 ratio and comprised patients who underwent hip arthroscopy for a labral tear and\/or femoroacetabular impingement without a CAO. The size and location of labral tears and chondral lesions were recorded in square millimeters with a 5\u2010mm probe and by the clock\u2010face method.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The CAO group consisted of 126 patients, who were matched to 378 patients in the control group. Femoral and acetabular chondral damage grades were significantly different between the 2 groups (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001). Of patients with CAOs, 55% had femoral head chondral damage compared with 24% of the control patients. The mean size of femoral chondral damage was 3.2\u00a0cm\n                      <jats:sup>2<\/jats:sup>\n                      in the CAO group and 1.7\u00a0cm\n                      <jats:sup>2<\/jats:sup>\n                      in the control group. The mean size of acetabular chondral damage was 1.7\u00a0cm\n                      <jats:sup>2<\/jats:sup>\n                      in the CAO group and 1.2\u00a0cm\n                      <jats:sup>2<\/jats:sup>\n                      in the control group. Both femoral and acetabular chondral damage sizes were significantly larger in the CAO group (\n                      <jats:italic>P<\/jats:italic>\n                      \u2264 .007). The prevalence of ligamentum teres tears was significantly different between the 2 groups (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001). There were no statistically significant differences in the types of labral tears between the 2 groups (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a0.625).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study showed that patients with CAOs had a significantly higher prevalence of femoral chondral damage and ligamentum teres tears than matched controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, comparative study.<\/jats:p>\n                  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