The Financial Burden of Patient Comorbidities on Total Knee Arthroplasty Procedures: A Matched Cohort Analysis of Patients Who Have a High and Non-High Comorbidity Burden.

Background: Recent literature suggests a trend toward a higher comorbidity burden in patients undergoing total knee arthroplasty (TKA). However, the impact of increased comorbidities on the cost-effectiveness of TKA is underexplored. This study aimed to compare the financial implications and perioperative outcomes of patients with and without a high comorbidity burden (HCB).

Nanoparticle ultrasonication: a promising approach for reducing bacterial biofilm in total joint infection-an in vivo rat model investigation.

Background: While the benefits of sonication for improving periprosthetic joint infection (PJI) are well-documented, its potential therapeutic effect against bacterial biofilm remains unstudied. This study aimed to investigate the safety and efficacy of a novel nanoparticle ultrasonication process on methicillin-resistant Staphylococcus aureus (MRSA) bacterial biofilm formation in a PJI rat model.

Methods: This novel ultrasonication process was designed to remove attached bacterial biofilm from implant and peri-articular tissues, without damaging native tissues or compromising implant integrity.

The role of MRI in the diagnosis of aseptic loosening following total hip arthroplasty.

Introduction: The role of advanced imaging in diagnosing aseptic implant loosening following total hip arthroplasty (THA) remains unclear. This study aimed to assess the diagnostic value of magnetic resonance imaging (MRI) in detecting aseptic loosening.

Methods: This was a retrospective review of 342 consecutive patients who underwent revision THA between July 2011 and April 2023 and had a pelvis MRI as part of the preoperative diagnostic evaluation.

Better restoration of joint line obliquity in tibia first restricted kinematic alignment versus mechanical alignment TKA.

Introduction: In total knee arthroplasty (TKA), suboptimal restoration of joint line obliquity (JLO) and joint line height (JLH) may lead to diminished implant longevity, increased risk of complications, and reduced patient reported outcomes. The primary objective of this study is to determine whether restricted kinematic alignment (rKA) leads to improved restoration of JLO and JLH compared to mechanical alignment (MA) in TKA.

Materials And Methods: This retrospective study assessed patients who underwent single implant design TKA for primary osteoarthritis, either MA with manual instrumentation or rKA assisted with imageless navigation robotic arm TKA.