{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T15:49:47Z","timestamp":1793980187982,"version":"4.8.0"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"08","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Knee Surg"],"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:p>Although several studies highlight the advantages of robotic arm-assisted total knee arthroplasty (RA-TKA), few investigate its intraoperative outcome. Therefore, the purpose of this study was to analyze the RA-TKA's ability to assist with intraoperative correction of: (1) flexion and (2) extension gaps, as well as its ability to (3) accurately predict implant sizes. Additionally, in this RA-TKA cohort, length of stay, complications, and readmissions were assessed. A total of 335 patients who underwent RA-TKA were included. The robotic software virtually measured the intraoperative prebone cut extension and flexion gaps. Differences in medial versus lateral prebone cut extension and flexion gaps were calculated. A total of 155 patients (46%) had an extension gap difference of between \u20132 and 2\u2009mm (mean, \u20130.3 mm), while 119 patients (36%) had a flexion gap difference of between \u20132 and 2\u2009mm (mean, \u20130.6 mm). Postbone cut differences in medial versus lateral flexion and extension gaps were measured. Balanced knees were considered to have a medial and lateral flexion gap difference within 2 mm. The robot-predicted implant size was also compared with the final implant size. Additionally, lengths of stay, complications, and readmissions were assessed. All patients achieved a postbone cut extension gap difference between \u20131 and 1\u2009mm (mean, \u20130.1 mm). A total of 332 patients (99%) achieved a postbone cut flexion gap difference of between \u20132 and 2\u2009mm (mean, 0 mm). For 98% of prostheses, the robotic software predicted within 1 implant size the actual tibial or femoral implant size used.<\/jats:p><jats:p>The mean length of stay was found to be 2 days. No patients suffered from superficial skin infection, pin site infections or fractures, soft tissue damage, and no robotic cases were converted to manual TKA due to intraoperative complications. A total of 8 patients (2.2%) were readmitted; however, none were directly related to robotic use. The robotic software and use of a preoperative computed tomography (CT) substantially helped with intraoperative planning and accurate prediction of implant sizes. Therefore, based on the results of this study, the RA-TKA device does, in fact, provide considerable intraoperative assistance.<\/jats:p>","DOI":"10.1055\/s-0038-1668122","type":"journal-article","created":{"date-parts":[[2018,8,16]],"date-time":"2018-08-16T01:08:29Z","timestamp":1534381709000},"page":"742-749","source":"Crossref","is-referenced-by-count":56,"title":["Does the Robotic Arm and Preoperative CT Planning Help with 3D Intraoperative Total Knee Arthroplasty Planning?"],"prefix":"10.1055","volume":"32","author":[{"given":"Robert C.","family":"Marchand","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Ortho Rhode Island, Wakefield, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nipun","family":"Sodhi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Lenox Hill Hospital, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manoshi","family":"Bhowmik-Stoker","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Stryker Orthopaedics, Mahwah, New Jersey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Scholl","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Stryker Orthopaedics, Mahwah, New Jersey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caitlin","family":"Condrey","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Ortho Rhode Island, Wakefield, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anton","family":"Khlopas","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Cleveland Clinic, Cleveland, Ohio"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Assem A.","family":"Sultan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Lenox Hill Hospital, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jared M.","family":"Newman","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, SUNY Downstate Medical Center, Brooklyn, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael A.","family":"Mont","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Lenox Hill Hospital, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2018,8,15]]},"container-title":["The Journal of Knee Surgery"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0038-1668122.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,5]],"date-time":"2019-08-05T01:59:55Z","timestamp":1564970395000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0038-1668122"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,8,15]]},"references-count":0,"journal-issue":{"issue":"08","published-online":{"date-parts":[[2019,8,2]]},"published-print":{"date-parts":[[2019,8]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0038-1668122","relation":{},"ISSN":["1538-8506","1938-2480"],"issn-type":[{"value":"1538-8506","type":"print"},{"value":"1938-2480","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,8,15]]}}}