Comparison of Functional Outcomes Between the First and Second Knee in Staged Bilateral Total Knee Arthroplasty With Diverse Intervals Between Stages.

Background: The objective of the study was to analyze if the length of interval time between stages influenced functional and quality of life outcomes in patients with staged bilateral primary total knee arthroplasty (TKA).

Methods: This is a retrospective comparative study between 93 patients with an interval between stages of 6-8 months (6-month group), 112 of 12-14 months (1-year group), and 108 of 24-26 months (2-year group). Outcome variables were Knee Society scores, Western Ontario and McMaster Universities, Short Form, and patient satisfaction.

Total Knee Arthroplasty in Patients With Prior Anterior Cruciate Ligament Reconstruction.

Background: Few studies have analyzed the outcomes of total knee arthroplasty (TKA) in patients with prior anterior cruciate ligament (ACL) reconstruction, and the reported outcomes are controversial. The purpose of this study is to assess if prior ACL reconstruction had any impact on the outcome of subsequent TKA.

Methods: A matched case-control study was conducted in patients who underwent TKA, including 37 with prior ACL reconstruction and 37 patients without ACL reconstruction.

Risk-Benefit on Quality of Life After Total Knee Arthroplasty in Octogenarians.

Background: Clinical outcomes of total knee arthroplasty (TKA) in very older patients have been widely studied, but the available evidence on quality of life (QOL) is limited. The objective was to evaluate the impact of TKA on the QOL in octogenarian patients and assess whether the risk-benefit justified surgery.

Methods: Prospective study comparing 143 octogenarian and 149 septuagenarian patients.

Comparable outcomes after total knee arthroplasty in patients under 55 years than in older patients: a matched prospective study with minimum follow-up of 10 years.

Purpose: To compare outcomes after TKA for osteoarthritis between patients younger than 55 years and older patients.

Methods: A cohort of 61 patients aged 55 years or younger was prospectively matched for gender, body mass index and knee function with patients with median age of 66 (range 60-70) years. Clinical evaluation was performed by the Knee Society scores (KSS), reduced Western Ontario and McMasters Universities (WOMAC) and Short-Form 12 (SF12) questionnaires.

Negative impact of waiting time for primary total knee arthroplasty on satisfaction and patient-reported outcome.

Purpose: The primary objective of this study was to evaluate the influence of the time on waiting list for total knee arthroplasty (TKA) on the post-operative satisfaction and patient-reported outcomes.

Methods: This was a prospective observational study of 192 patients followed for one year. Patients were pre and post-operatively assessed with the 12-item Short-Form, reduced Western Ontario MacMaster University, and Knee Society scores.

Better functional outcome after single-radius TKA compared with multi-radius TKA.

Purpose: To determine whether the design of the femoral component influenced patient outcomes.

Methods: Two hundred and thirty-seven patients were randomized to compare functional outcomes between single-radius TKA (SR, 118 patients) and multi-radius TKA (MR, 119 patients) with a minimum follow-up of 5 years. Prospective pre- and postoperative assessments were performed by the clinical and radiological criteria of the Knee Society Score (KSS), WOMAC and Short-Form 12 (SF12) questionnaires.

Early surgery within 2 days for hip fracture is not reliable as healthcare quality indicator.

Purpose: To analyze prospectively the influence of the timing of surgery on morbidity and mortality, and to assess whether the early surgery within 2 days admission may be a reliably healthcare quality indicator.

Methods: Prospective observational study of 628 patients age 60 or older who had been co-managed between surgeons and internists. Based on the literature, many potential factors influencing outcomes were collected to control confounding regard to surgery delay, complications and mortality.

Elective Total Knee Arthroplasty in Patients With End-Stage Renal Disease: Is It a Safe Procedure?

Background: The purpose of this study was to compare outcomes and complications after total knee arthroplasty (TKA) between end-stage renal disease (ESRD) patients and patients without renal insufficiency.

Methods: A retrospective case-control study with prospectively collected data was carried out to compare 15 ESRD patients with a matched cohort of 30 nonrenal patients. Clinical evaluation was performed by the Knee Society Scores (KSS) and reduced Western Ontario MacMasters University (WOMAC) questionnaire.