title: To Cement or Not? Two-Year Results of a Prospective, Randomized Study Comparing Cemented Vs. Cementless Total Knee Arthroplasty (TKA).
abstract: The optimal mode of fixation in total knee arthroplasty (TKA) is a subject of debate. We enrolled 100 TKA patients randomized to cemented or cementless fixation. Knee Society Scores (KSS), Oxford scores and pain visual analog scales (VAS) were collected pre-operatively and post-operatively. Two-year follow-up was obtained for 93 patients. The mean VAS trended higher for the cementless group at 4 months (P=0.06). At 2 years, the KSS functional scores, Oxford scores, and self-reported questions for satisfaction, less pain and better function were similar but the cemented group had higher KSS clinical scores (96.4 vs. 92.3, P=0.03). More radiolucencies were seen in cementless knees (P<0.001). The cementless group had one revision for instability and one cemented knee was revised for infection. Cementless TKA showed equivalent survivorship (revision for any reason as the endpoint) compared to cemented TKA at this early follow-up. Close monitoring of radiolucencies is important with continued follow-up.
authors.affiliation: Anderson Orthopaedic Research Institute, Alexandria VA and Inova Center for Joint Replacement at Mount Vernon Hospital, Alexandria, Virginia.
authors.forename: Kevin B
authors.initials: KB
authors.lastname: Fricka
authors.affiliation: Anderson Orthopaedic Research Institute, Alexandria VA and Inova Center for Joint Replacement at Mount Vernon Hospital, Alexandria, Virginia.
authors.forename: Supatra
authors.initials: S
authors.lastname: Sritulanondha
authors.affiliation: Edward Hines VA Hospital, Section Chief of Orthopaedics, Maywood, Illinois.
authors.forename: Craig J
authors.initials: CJ
authors.lastname: McAsey
mesh_terms: D000328:Adult; D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation / Q000379:methods*; D001843:Bone Cements; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D011184:Postoperative Period; D011446:Prospective Studies; D011859:Radiography; D012086:Reoperation; D016896:Treatment Outcome; D064232:Visual Analog Scale
chemical_list: D001843:Bone Cements
keywords: cemented; cementless; knee; outcomes; total knee arthroplasty