To Cement or Not? Two-Year Results of a Prospective, Randomized Study Comparing Cemented Vs. Cementless Total Knee Arthroplasty (TKA)

• Published in: The Journal of arthroplasty Vol. 30; no. 9; pp. 55 - 58
• Main Authors: Fricka, Kevin B., Sritulanondha, Supatra, McAsey, Craig J.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.09.2015
• Subjects: Adult; Aged; Arthroplasty, Replacement, Knee - instrumentation; Arthroplasty, Replacement, Knee - methods; Bone Cements; cemented; cementless; Female; Humans; knee; Knee Joint - diagnostic imaging; Knee Joint - surgery; Knee Prosthesis; Male; Middle Aged; Orthopedics; outcomes; Pain Measurement; Patient Satisfaction; Postoperative Period; Prospective Studies; Radiography; Reoperation; total knee arthroplasty; Treatment Outcome; Visual Analog Scale; total knee arthroplasty; knee; cemented; outcomes; cementless
• ISSN: 0883-5403; 1532-8406
• DOI: 10.1016/j.arth.2015.04.049

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 4months (P=0.06). At 2years, 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.