Pires E Albuquerque Rodrigo Sattamini, Pizziolo Thales Ramos, da Silva Octavio Augusto Tome, Monteiro Marcelo Alfredo Guerra, Minamoto Sandra Tie Nishibe, Mozella Alan de Paula
Centro de Cirurgia do Joelho do Instituto Nacional de Traumatologia e Ortopedia, Rio de Janeiro, RJ, Brazil.
Universidade Federal Fluminense, Niterói, RJ, Brazil.
Acta Ortop Bras. 2024 Jul 22;32(3):e276755. doi: 10.1590/1413-785220243203e276755. eCollection 2024.
The objective of the research was to carry out a comparative study between Smith & Nephew ® or Zimmer ® prostheses with thick versus thin polyethylene, in patients undergoing primary total knee arthroplasty, during a short-term follow-up. Thus, the objective was to analyze the survival of the implants in question under the clinical and radiographic aspect.
The sample was divided into two groups: Group 1 with thick polyethylene and group 2 with thin polyethylene. A clinical analysis of the patients was carried out and the implants were checked for loosening.
The groups were similar when compared. According to the Ahlbäck classification, 83% of the patients were in groups IV and V. The median functional score in the postoperative period was similar between the two groups. Postoperatively, the tibiofemoral angle fluctuated between 5 and 6 valgus on average. Two complications were observed in each group. None of the evaluated patients presented implant loosening.
Patients treated with thick polyethylene had the same functional score as the control group, as well as the absence of radiographic changes in this short-term follow-up, with implant survival and a similar rate of complications between both groups.
本研究的目的是在短期随访期间，对接受初次全膝关节置换术的患者使用厚聚乙烯与薄聚乙烯的施乐辉®或捷迈®假体进行比较研究。因此，目的是从临床和影像学方面分析相关植入物的存活率。
样本分为两组：第1组使用厚聚乙烯，第2组使用薄聚乙烯。对患者进行临床分析，并检查植入物是否松动。
两组比较时相似。根据阿尔贝克分类，83%的患者属于IV组和V组。两组术后的中位功能评分相似。术后，胫股角平均在5至6度外翻之间波动。每组观察到两例并发症。所有评估患者均未出现植入物松动。
在短期随访中，使用厚聚乙烯治疗的患者与对照组具有相同的功能评分，且无影像学变化，两组的植入物存活率和并发症发生率相似。
