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The alignment of the interphalangeal joint was straight after surgery, but the deviation gradually developed. A revision surgery using a costal osteochondral graft was performed when the patient was 3 years old. A satisfactory outcome was obtained at the 3-year follow-up. The authors suggest that a costal osteochondral graft may be a reasonable option for revision surgery for a postoperative cartilage defect.<\/jats:p>","DOI":"10.1136\/bcr-2020-237823","type":"journal-article","created":{"date-parts":[[2021,1,28]],"date-time":"2021-01-28T12:55:21Z","timestamp":1611838521000},"page":"e237823","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Costal osteochondral graft for a postoperative cartilage defect in a patient with polydactyly"],"prefix":"10.1136","volume":"14","author":[{"given":"Keisuke","family":"Nakagawa","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan"},{"name":"Department of Pediatric Orthopaedics, Osaka City General Hospital, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Noriaki","family":"Hidaka","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshio","family":"Kitano","sequence":"additional","affiliation":[{"name":"Department of Pediatric Orthopaedics, Osaka City General Hospital, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroaki","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2021,1,28]]},"reference":[{"key":"2025082802162552000_14.1.e237823.1","doi-asserted-by":"publisher","DOI":"10.1016\/S0266-7681(05)80248-7"},{"key":"2025082802162552000_14.1.e237823.2","doi-asserted-by":"publisher","DOI":"10.1016\/0363-5023(89)90200-1"},{"key":"2025082802162552000_14.1.e237823.3","doi-asserted-by":"crossref","unstructured":"Bilhaut M . 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