Smoking is not closely related to revision for periprosthetic joint infection after primary total knee and hip arthroplasty.

Background: The influence of smoking on the risk of periprosthetic joint infection (PJI) remains unclear. The objective was to explore the impact of smoking on PJI after primary total knee (TKA) and hip (THA) arthroplasty.

Hypothesis: Current smoking patients should have an increased risk of PIJ compared with nonsmoking patients.

A validated outcome categorization of the knee society score for total knee arthroplasty.

Purpose: To determine cutoff values for the Knee Society Scores (KSS) indicative of a categorical scale of medium-term outcomes.

Methods: One hundred and fifty-five patients who underwent primary cruciate-retaining TKA with a patellar button for osteoarthritis at a single-centre were assessed prospectively by the KSS and short-form Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) simultaneously at the 3-year follow-up. A validated categorization of the WOMAC score was used as a standard.

V-Y turndown flap augmentation for acute quadriceps rupture after total knee arthroplasty: a prospective matched cohort study.

Purpose: To evaluate the effectiveness of the quadriceps V-Y turndown augmentation for acute quadriceps tendon ruptures in the setting of TKA.

Methods: Prospective cohort of 22 patients with quadriceps rupture after TKA were compared with 44 matched patients underwent TKA without quadriceps rupture. Quadriceps ruptures were treated within three weeks after injury by suture augmented with Scuderi quadriceps V-Y turndown flap.

Outcomes of Total Hip Arthroplasty for Healed Intertrochanteric Hip Fractures. A Matched Retrospective Cohort Study.

Background: Many studies have analyzed the outcomes of total hip arthroplasty (THA) after failed intertrochanteric fracture fixation, but not after healed fracture. The objective is to investigate the influence of a prior healed intertrochanteric fracture fixation on the outcomes of a subsequent THA for osteoarthritis.

Methods: This is a matched retrospective cohort study of THA between 43 patients who suffered a prior intertrochanteric fracture successfully managed with internal fixation and 43 patients without prior hip fracture.

Volar plate for intra-articular distal radius fracture. A prospective comparative study between elderly and young patients.

Introduction: Treatment of the distal radius fracture in elderly remains controversial. The objective was to assess the outcomes of volar locking plate for displaced complete intra-articular distal radius fractures in elderly as compared to younger patients.

Hypothesis: The outcomes in elderly patients would be comparable with those in younger patients with a low rate of complications.

Minimal clinically important differences and substantial clinical benefits for Knee Society Scores.

Purpose: There is a paucity of literature defining the minimal clinically important difference (MCID) for the Knee Society Scores (KSS) after total knee arthroplasty (TKA), and no data on the substantial clinical benefit (SCB) for KSS have been reported. The purpose of this study was to determine MCID and SCB for the KSS in patients with primary TKA.

Methods: The median age of patients was 71.

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.

Prospective study of comminuted articular distal radius fractures stabilized by volar plating in the elderly.

Purpose: The objective was to assess the ability of the volar locking plate to maintain the radiographic parameters over the time in elderly patients with complex intra-articular distal radius fractures.

Methods: Prospective cohort of 66 consecutive patients with mean age of 68 (range 60-81) years and AO type C fractures treated with volar locking plate. Radiographic measurements were performed pre and post-operatively at each follow-up.

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.

Intra-articular distal radius fractures in elderly patients: a randomized prospective study of casting versus volar plating.

Unlabelled: We compared outcomes in elderly patients with intra-articular distal radius fractures treated by closed reduction and plaster immobilization or open reduction and internal fixation with a volar plate. Ninety-seven patients older than 60 years were randomly allocated to conservative (47 patients) or surgical (50 patients) treatment. Over a 2-year period, we assessed patient-rated wrist evaluation score, DASH (disability arm, shoulder and hand) questionnaire, pain, wrist range of motion, grip strength, and radiological parameters.

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.

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.