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Unplanned 30\u2010day hospital readmission is an indicator of complications, which is a significant financial burden on healthcare systems. We reviewed the literature to better understand the patient\u2010related factors associated with unplanned 30\u2010day readmission following TKA. MEDLINE and EMBASE were searched for studies reporting on patient\u2010related risk factors for unplanned 30\u2010day readmission following primary or revision TKA for any indication. The impact of specific medical comorbidities on increasing the risk of 30\u2010day readmission following TKA is quite well established. The following comorbidities are strongly associated with readmission: bleeding disorder, diabetes, chronic kidney disease and dialysis, chronic immunosuppressant use and history of cancer. Other significant comorbidities include: dementia; depression; haematological (coagulopathy and anaemia), cardiovascular (atrial fibrillation, cardiovascular disease, coronary artery disease and congestive heart failure), respiratory (chronic obstructive pulmonary disease) and liver diseases; and cerebrovascular accident\/transient ischaemic attack (but only in revision TKA patients). The influence of variation in sex, age and body mass index each demonstrate a more complex pattern. A systematic review and meta\u2010analysis is required to quantify the impact of the various patient\u2010related factors on 30\u2010day readmission following TKA. Clinicians can use this information in preoperative decision\u2010making.<\/jats:p>","DOI":"10.1111\/ans.15695","type":"journal-article","created":{"date-parts":[[2020,1,23]],"date-time":"2020-01-23T01:25:52Z","timestamp":1579742752000},"page":"1253-1258","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Patient\u2010related risk factors for unplanned 30\u2010day readmission following total knee arthroplasty: a narrative literature review"],"prefix":"10.1111","volume":"90","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0423-5822","authenticated-orcid":false,"given":"Daniel","family":"Gould","sequence":"first","affiliation":[{"name":"Department of Surgery St Vincent's Hospital, The University of Melbourne  Melbourne Victoria Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michelle","family":"Dowsey","sequence":"additional","affiliation":[{"name":"Department of Surgery St Vincent's Hospital, The University of Melbourne  Melbourne Victoria Australia"},{"name":"Department of Othopaedics St Vincent's Hospital  Melbourne Victoria Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Imkyeong","family":"Jo","sequence":"additional","affiliation":[{"name":"Department of Surgery St Vincent's Hospital, The University of Melbourne  Melbourne Victoria Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Choong","sequence":"additional","affiliation":[{"name":"Department of Surgery St Vincent's Hospital, The University of Melbourne  Melbourne Victoria Australia"},{"name":"Department of Othopaedics St Vincent's Hospital  Melbourne Victoria Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,1,22]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200405000-00012"},{"key":"e_1_2_8_3_1","unstructured":"Australian Orthopaedic Association National Joint Replacement Registry. 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