{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T19:25:51Z","timestamp":1793820351729,"version":"4.6.1"},"reference-count":39,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T00:00:00Z","timestamp":1782691200000},"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":[[2026,8]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Osteochondral defects result in persistent knee pain and functional impairment, and remain a clinical challenge to repair effectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To evaluate the efficacy of an autologous inverted subchondral bone-periosteum composite graft for osteochondral reconstruction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Controlled laboratory study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A total of 30 mature New Zealand White rabbits were randomly assigned to 3 groups: microfracture (MF) (n = 10), osteoperiosteal composite graft (OPC) (n = 10), and untreated control (n = 10). A 2 mm\u2013diameter osteochondral defect was created in the control and MF groups and left untreated in the control group. In the MF group, microfracture was then performed by creating four 4 mm\u2013deep perforations in the defect bed using Kirschner wires. A cylindrical osteochondral autograft (2 mm diameter \u00d7 4 mm height) was aseptically harvested from the intercondylar fossa using a calibrated coring drill only in the OPC group. Group-specific treatments included defect creation without reparative intervention (control), defect creation followed by subchondral perforation (MF), and inverted autograft implantation with periosteal wrapping (OPC). Animals were euthanized at 6 and 12 weeks postoperatively (n = 5 per group per time point) for gross and histological evaluation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      At 6 weeks, fibrocartilaginous tissue partially filled the defects in all groups. By 12 weeks, the OPC group exhibited a significant reduction in defect area compared with the preoperative baseline, with &gt;75% of the defect depth filled, significantly outperforming the control group. Histological analysis confirmed the superior regenerative performance of the OPC group, with scores of 26.20 \u00b1 1.48, compared with 21.80 \u00b1 2.68 in the MF group and 15.60 \u00b1 2.61 in controls (OPC vs MF,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .0280; OPC vs Control,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt;.0001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The osteoperiosteal composite graft promotes osteochondral regeneration by synergistically enhancing progenitor cell recruitment and chondrogenic differentiation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>This single-stage procedure offers a biomimetic, surgically practical, cost-effective, and arthroscopically compatible strategy for repairing osteochondral lesions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03635465261456227","type":"journal-article","created":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T09:37:16Z","timestamp":1782725836000},"page":"2473-2480","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["A Novel Autologous Osteoperiosteal Composite for Osteochondral Regeneration"],"prefix":"10.1177","volume":"54","author":[{"given":"Longtao","family":"Yao","sequence":"first","affiliation":[{"name":"Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China"},{"name":"Postgraduate Training Base Alliance, School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guorong","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Huzhou Central Hospital, Huzhou, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zexuan","family":"Niu","sequence":"additional","affiliation":[{"name":"Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheyuan","family":"Ding","sequence":"additional","affiliation":[{"name":"Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 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