The purpose of this study was to evaluate the clinical and radiographic outcomes of the rotating-platform, posterior-stabilized PFC Sigma at fifteen-year follow-up. Between January 2000 and November 2001, two hundred consecutive patients underwent TKA with a rotating-platform, posterior stabilized total knee arthroplasty with cement. All patients have been followed prospectively and all patients with minimum 12 year follow up were included in this analysis. Forty-nine TKAs were available for our final analysis with a mean follow up of 16.0 years.Background
Methods
Anterior cruciate ligament (ACL) and multiligament knee (MLK) injuries increase the risk of development of knee osteoarthritis and eventual need for total knee arthroplasty (TKA). There is limited data regarding implant use and outcomes in these patients. The aim of this study was to compare the use of constrained implants and outcomes among patients undergoing TKA with a history of prior knee ligament reconstruction (PKLR) to a matched cohort of patients undergoing TKA with no history of PKLR. All patients with history of ACL or MLK reconstruction who underwent TKA between 2007–2018 were identified in a single institution registry. A matched cohort was identified based on patient age, body mass index (BMI), sex, and year of surgery. The primary outcome measure was utilization of constrained implants. Secondary outcomes included rates of deep vein thrombosis (DVT), pulmonary embolism (PE), infection, postoperative transfusion, postoperative knee range of motion (ROM), revision surgery, and patient reported outcomes (Knee Injury and Osteoarthritis Outcome Score for joint replacement (KOOS, JR).Introduction
Methods
There has been a recent increase in interest
for non-cemented fixation in total knee arthroplasty (TKA), however
the superiority of cement fixation is an ongoing debate. Whereas the results based on Level III and IV evidence show similar
survivorship rates between the two types of fixation, Level I and
II evidence strongly support cemented fixation. United Kingdom,
Australia, Sweden, and New Zealand registry data show lower failure
rates and greater usage of cemented than non-cemented fixation.
Case series studies have also indicated greater functional outcomes
and lower revision rates among cemented TKAs. Non-cemented fixation
involves more patellofemoral complications, including increased
susceptibility to wear due to a thinner polyethylene bearing on
the cementless metal-backed component. The combination of results
from registry data, prospective randomised studies, and meta-analyses
support the current superiority of cemented fixation in TKAs.
