{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:43:16Z","timestamp":1787755396725,"version":"build-2784847793"},"reference-count":10,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JBJS Case Connector"],"abstract":"<jats:sec>\n                    <jats:title>Case:<\/jats:title>\n                    <jats:p>Congenital aplasia or hypoplasia of the patella by itself is a rare condition; to our knowledge, it has been associated with aplasia of the quadriceps mechanism only 3 times in the literature. We describe a 5-year-old boy who had bilateral fixed flexion deformity of the knee as well as bilateral hypoplasia of the patella and quadriceps mechanism; he never had been able to stand upright and walk. We present the clinical and radiographic features, the surgical details, and the successful outcome after treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Corrective femoral osteotomies with soft-tissue reconstruction to provide active knee extension provided a satisfactory outcome. At the last follow-up, the child was walking without support and had good active knee extension.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.cc.18.00029","type":"journal-article","created":{"date-parts":[[2018,10,9]],"date-time":"2018-10-09T21:48:57Z","timestamp":1539121737000},"page":"e79-e79","source":"Crossref","is-referenced-by-count":5,"title":["Congenital Aplasia of the Patella and the Distal Third of the Quadriceps Mechanism"],"prefix":"10.2106","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3933-131X","authenticated-orcid":false,"given":"Avi Pranay","family":"Shah","sequence":"first","affiliation":[{"name":"Agashe Paediatric SuperSpeciality Care, Mumbai, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7524-1384","authenticated-orcid":false,"given":"Sandeep","family":"Vaidya","sequence":"additional","affiliation":[{"name":"Pinnacle Orthocentre, Thane, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1593-4765","authenticated-orcid":false,"given":"Sanjay","family":"Phadke","sequence":"additional","affiliation":[{"name":"Agashe Hospital, Kurla, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5475-2086","authenticated-orcid":false,"given":"Mandar","family":"Agashe","sequence":"additional","affiliation":[{"name":"Agashe Paediatric SuperSpeciality Care, Mumbai, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2018,12]]},"reference":[{"issue":"4","key":"bib1-20230713","first-page":"373","article-title":"Congenital patellar aplasia in conjunction with trisomy 8. A case report","volume":"70","author":"Arslan","year":"2004","journal-title":"Acta Orthop Belg."},{"issue":"4","key":"bib2-20230713","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1111\/j.1399-0004.2005.00508.x","article-title":"Human syndromes with congenital patellar anomalies and the underlying gene defects","volume":"68","author":"Bongers","year":"2005","journal-title":"Clin Genet."},{"issue":"3","key":"bib3-20230713","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1007\/BF00971820","article-title":"Unilateral absence of thigh muscles confirmed by CT scan","volume":"11","author":"Peterson","year":"1981","journal-title":"Pediatr Radiol."},{"issue":"1","key":"bib4-20230713","first-page":"73","article-title":"[Congenital absence of patella and of quadriceps femoris]","volume":"21","author":"Kaminski","year":"1956","journal-title":"Chir Narzadow Ruchu Ortop Pol."},{"issue":"5","key":"bib5-20230713","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1097\/01.bpb.0000243828.22552.74","article-title":"Congenital aplasia of the patella and the distal third of the quadriceps mechanism","volume":"16","author":"Varghese","year":"2007","journal-title":"J Pediatr Orthop B."},{"issue":"4","key":"bib6-20230713","doi-asserted-by":"crossref","first-page":"322","DOI":"10.1097\/BPB.0b013e32834dfe12","article-title":"Congenital total absence of the quadriceps muscle and patella: a case report with computed tomography scan and three-dimensional reconstructions","volume":"22","author":"Oner","year":"2013","journal-title":"J Pediatr Orthop B."},{"issue":"1","key":"bib7-20230713","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1097\/01202412-200301000-00002","article-title":"Nail-patella syndrome: long term evolution","volume":"12","author":"Beguirist\u00e1in","year":"2003","journal-title":"J Pediatr Orthop B."},{"issue":"5","key":"bib8-20230713","doi-asserted-by":"crossref","first-page":"1088","DOI":"10.2106\/00004623-197355050-00021","article-title":"Familial absence of the patella","volume":"55","author":"Bernhang","year":"1973","journal-title":"J Bone Joint Surg Am."},{"issue":"7","key":"bib9-20230713","doi-asserted-by":"crossref","first-page":"520","DOI":"10.1136\/jmg.37.7.520","article-title":"Genitopatellar syndrome: a new condition comprising absent patellae, scrotal hypoplasia, renal anomalies, facial dysmorphism, and mental retardation","volume":"37","author":"Cormier-Daire","year":"2000","journal-title":"J Med Genet."},{"issue":"1","key":"bib10-20230713","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1302\/0301-620X.78B1.0780063","article-title":"The \u2018small-patella\u2019 syndrome. Hereditary osteodysplasia of the knee, pelvis and foot","volume":"78","author":"Dellestable","year":"1996","journal-title":"J Bone Joint Surg Br."}],"container-title":["JBJS Case Connector"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/01709767-201812000-00004","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T13:42:28Z","timestamp":1787751748000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/01709767-201812000-00004"}},"subtitle":["A Case Report"],"short-title":[],"issued":{"date-parts":[[2018,10,10]]},"references-count":10,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2018]]}},"URL":"https:\/\/doi.org\/10.2106\/jbjs.cc.18.00029","relation":{},"ISSN":["2160-3251"],"issn-type":[{"value":"2160-3251","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,10,10]]}}}