{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T03:05:51Z","timestamp":1793329551057,"version":"4.5.0"},"reference-count":36,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2011,12,6]],"date-time":"2011-12-06T00:00:00Z","timestamp":1323129600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["arthroscopyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2012,3]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To compare the effectiveness of simple arthroscopic debridement versus arthroscopic autologous chondrocyte transplantation (ACT) for the treatment of hip chondral lesions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      We carried out a controlled retrospective study of 30 patients affected by a post\u2010traumatic hip chondropathy of the third or fourth degree, according to the Outerbridge classification, measuring 2 cm\n                      <jats:sup>2<\/jats:sup>\n                      in area or more. Of these patients, 15 underwent arthroscopic ACT, whereas the other 15 underwent arthroscopic debridement. The 2 groups were similar in age, sex, degree, and location of the pathology. All the patients were assessed before and after the procedure with the Harris Hip Score (HHS).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      In both groups the mean follow\u2010up was approximately 74 months (range, 72 to 76 months). The mean size of the defect was 2.6 cm\n                      <jats:sup>2<\/jats:sup>\n                      . The patients who underwent ACT (group A) improved after the procedure compared with the group that underwent debridement alone (group B). The mean HHS preoperatively was 48.3 (95% confidence interval [CI], 45.4 to 51.2) in group A and 46 (95% CI, 42.7 to 49.3) in group B (\n                      <jats:italic>P<\/jats:italic>\n                      = .428 [no significant difference]). The final HHS was 87.4 (95% CI, 84.3 to 90.5) in group A and 56.3 (95% CI, 54.4 to 58.7) in group B (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001 [significant difference]).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study indicates that an ACT procedure can be used in the hip for acetabular chondral defects.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, retrospective comparative study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2011.08.304","type":"journal-article","created":{"date-parts":[[2011,12,9]],"date-time":"2011-12-09T00:47:56Z","timestamp":1323391676000},"page":"322-329","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":141,"title":["Arthroscopic Treatment of Hip Chondral Defects: Autologous Chondrocyte Transplantation Versus Simple Debridement\u2014A Pilot Study"],"prefix":"10.1002","volume":"28","author":[{"given":"Andrea","family":"Fontana","sequence":"first","affiliation":[{"name":"Hip and Knee Unit, Clinica Capitanio Milan Italy"},{"name":"Biotechnologies Department Clinica Capitanio Milan Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Bistolfi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Traumatology and Health Medicine CTO\/M. 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