{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:43:28Z","timestamp":1787755408977,"version":"build-2784847793"},"reference-count":23,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec>\n                    <jats:title>Case:<\/jats:title>\n                    <jats:p>A 51-year-old man and 64-year-old woman with bilateral cruciate-retaining total knee arthroplasties (CR-TKAs) who sustained unilateral periprosthetic distal femur fractures above their CR-TKA and experienced knee instability secondary to an iatrogenic posterior-cruciate-ligament (posterior cruciate ligament [PCL]) injury from retrograde intramedullary nailing. Both patients recovered knee stability after undergoing revision surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Many CR-TKA designs have sufficient medial-lateral intercondylar distance to place a retrograde nail, femoral components with a relatively posterior transition from the trochlear groove to the intercondylar box will necessitate a nail starting point closer to the PCL origin. This may contribute to iatrogenic postoperative knee instability for patients with CR-TKA designs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.cc.23.00510","type":"journal-article","created":{"date-parts":[[2024,4,5]],"date-time":"2024-04-05T14:07:25Z","timestamp":1712326045000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":1,"title":["Posterior Cruciate Ligament Injury After Retrograde Nailing of Periprosthetic Distal Femur Fractures"],"prefix":"10.2106","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9372-5005","authenticated-orcid":false,"given":"Frank A.","family":"Martinez","sequence":"first","affiliation":[{"name":"Mayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0175-1095","authenticated-orcid":false,"given":"Brandon J.","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Mayo Clinic, Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2024,4]]},"reference":[{"issue":"17","key":"bib1-20240805","doi-asserted-by":"crossref","first-page":"1386","DOI":"10.2106\/JBJS.N.01141","article-title":"Prevalence of total hip and knee replacement in the United States","volume":"97","author":"Maradit Kremers","year":"2015","journal-title":"J Bone Joint Surg Am."},{"issue":"3","key":"bib2-20240805","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1097\/BOT.0000000000000282","article-title":"Periprosthetic femur fractures","volume":"29","author":"Ricci","year":"2015","journal-title":"J orthopaedic Trauma."},{"issue":"4","key":"bib3-20240805","doi-asserted-by":"crossref","first-page":"1062","DOI":"10.1016\/j.injury.2020.02.043","article-title":"Equivalent union rates between intramedullary nail and locked plate fixation for distal femur periprosthetic fractures \u2013 a systematic review","volume":"51","author":"Shah","year":"2020","journal-title":"Injury."},{"issue":"12","key":"bib4-20240805","doi-asserted-by":"crossref","first-page":"2658","DOI":"10.2106\/JBJS.F.01538","article-title":"Mortality after periprosthetic fracture of the femur","volume":"89","author":"Bhattacharyya","year":"2007","journal-title":"J Bone Joint Surg Am."},{"issue":"10","key":"bib5-20240805","doi-asserted-by":"crossref","first-page":"e380","DOI":"10.1097\/BOT.0000000000000350","article-title":"Influence of femoral component design on retrograde femoral nail starting point","volume":"29","author":"Service","year":"2015","journal-title":"J Orthop Trauma."},{"issue":"1","key":"bib6-20240805","doi-asserted-by":"crossref","first-page":"9","DOI":"10.4055\/cios.2014.6.1.9","article-title":"Patellofemoral crepitus after total knee arthroplasty: etiology and preventive measures","volume":"6","author":"Conrad","year":"2014","journal-title":"Clin Orthop Surg."},{"issue":"1","key":"bib7-20240805","first-page":"151","article-title":"Retrograde femoral nailing: an understanding of the intercondylar insertion site","volume":"64","author":"Morgan","year":"2008","journal-title":"J Trauma."},{"issue":"4","key":"bib8-20240805","doi-asserted-by":"crossref","first-page":"692","DOI":"10.1097\/01.TA.0000088857.47194.7E","article-title":"Identification of the optimal intercondylar starting point for retrograde femoral nailing: an anatomic study","volume":"55","author":"Carmack","year":"2003","journal-title":"J Trauma."},{"issue":"10","key":"bib9-20240805","doi-asserted-by":"crossref","first-page":"1745","DOI":"10.1016\/j.injury.2019.04.019","article-title":"Locking plates versus retrograde intramedullary nails in the treatment of periprosthetic supracondylar knee fractures. A retrospective multicenter comparative study","volume":"50","author":"Kyriakidis","year":"2019","journal-title":"Injury."},{"issue":"1","key":"bib10-20240805","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1186\/s42836-021-00080-w","article-title":"Review of patient-reported outcomes in periprosthetic distal femur fractures after total knee arthroplasty: a plate or intramedullary nail?","volume":"3","author":"Rinehart","year":"2021","journal-title":"Arthroplasty."},{"issue":"1","key":"bib11-20240805","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1007\/s00402-013-1890-7","article-title":"Outcomes of long retrograde intramedullary nailing for periprosthetic supracondylar femoral fractures following total knee arthroplasty","volume":"134","author":"Lee","year":"2014","journal-title":"Arch orthopaedic Trauma Surg."},{"issue":"4","key":"bib12-20240805","doi-asserted-by":"crossref","first-page":"981","DOI":"10.1007\/s00264-008-0587-y","article-title":"Supracondylar 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