Joicemar Tarouco Amaro1, Gustavo Gonçalves Arliani2, Diego Costa Astur1, Pedro Debieux3, Camila Cohen Kaleka4, Moises Cohen1. 1. Departamento de Ortopedia e Traumatologia, Centro de Traumatologia do Esporte (CETE), Universidade Federal de São Paulo, Rua Borges Lagoa, 783, 5° andar, Vila Clementino, São Paulo, SP, CEP 04038-032, Brazil. 2. Departamento de Ortopedia e Traumatologia, Centro de Traumatologia do Esporte (CETE), Universidade Federal de São Paulo, Rua Borges Lagoa, 783, 5° andar, Vila Clementino, São Paulo, SP, CEP 04038-032, Brazil. ggarliani@hotmail.com. 3. Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil. 4. Grupo do Joelho, Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, SP, Brazil.
Abstract
PURPOSE: Until now, there are no definitive conclusions regarding functional differences related to middle- and long-term everyday activities and patient pain following implantation of mobile- and fixed-platform tibial prostheses. The aim of this study was to determine whether there are middle-term differences in knee function and pain in patients undergoing fixed- and mobile-bearing total knee arthroplasty (TKA). METHODS:Eligible patients were randomized into two groups: the first group received TKA implantation with a fixed tibial platform (group A); the second group received TKA with a mobile tibial platform (group B). Patients were followed up (2 years), and their symptoms and limitations in daily living activities were evaluated using the Knee Outcome Survey-Activities of Daily Living Scale (ADLS), in addition to pain evaluation assessed using the pain visual analogue scale (VAS). RESULTS: There were no significant differences in function and symptoms in the ADLS and VAS between the study groups. CONCLUSION: The type of platform used in TKA (fixed vs. mobile) does not change the symptoms, function or pain of patients 2 years post-surgery. Although mobile TKAs may have better short-term results, at medium- and long-term follow-up they do not present important clinical differences compared with fixed-platform TKAs. This information is important so that surgeons can choose the most suitable implant for each patient. LEVEL OF EVIDENCE: Randomized clinical trial, Level I.
RCT Entities:
PURPOSE: Until now, there are no definitive conclusions regarding functional differences related to middle- and long-term everyday activities and patientpain following implantation of mobile- and fixed-platform tibial prostheses. The aim of this study was to determine whether there are middle-term differences in knee function and pain in patients undergoing fixed- and mobile-bearing total knee arthroplasty (TKA). METHODS: Eligible patients were randomized into two groups: the first group received TKA implantation with a fixed tibial platform (group A); the second group received TKA with a mobile tibial platform (group B). Patients were followed up (2 years), and their symptoms and limitations in daily living activities were evaluated using the Knee Outcome Survey-Activities of Daily Living Scale (ADLS), in addition to pain evaluation assessed using the pain visual analogue scale (VAS). RESULTS: There were no significant differences in function and symptoms in the ADLS and VAS between the study groups. CONCLUSION: The type of platform used in TKA (fixed vs. mobile) does not change the symptoms, function or pain of patients 2 years post-surgery. Although mobile TKAs may have better short-term results, at medium- and long-term follow-up they do not present important clinical differences compared with fixed-platform TKAs. This information is important so that surgeons can choose the most suitable implant for each patient. LEVEL OF EVIDENCE: Randomized clinical trial, Level I.
Authors: Ephrat Most; Guoan Li; Steven Schule; Peter Sultan; Sang Eun Park; Shay Zayontz; Harry E Rubash Journal: Clin Orthop Relat Res Date: 2003-11 Impact factor: 4.176
Authors: Stefan J M Breugem; Bas van Ooij; Daniël Haverkamp; Inger N Sierevelt; C Niek van Dijk Journal: Knee Surg Sports Traumatol Arthrosc Date: 2012-11-03 Impact factor: 4.342