High Survivorship of Hybrid Fixation Technique in Aseptic Condylar Revision Total Knee Arthroplasty with Minimal Metaphyseal Bone Loss: 5-10 Year Clinical Outcomes.

The aim of this study was to evaluate the outcomes of hybrid fixation technique in aseptic condylar revision total knee arthroplasty (rTKA). A retrospective consecutive study of patients with minimal metaphyseal bone loss who underwent aseptic rTKA with press-fit cementless femoral stems and short cemented tibial stems. Primary outcome measure was mechanical failure.

Extensive Proximal Extensor Mechanism Realignment for Chronic Patella Dislocations in Revision Knee Arthroplasty: Surgical Technique.

Patella dislocation after primary or revision total knee arthroplasty (TKA) is a major challenge in revision surgery. In practice, the main reason for patella maltracking and instability following TKA is malrotation of the femoral and/or tibial components. A number of soft tissue procedures, once component malrotation is corrected, have been described including proximal realignment, quadricepsplasty and distal realignment of patellar tendon with tibial tubercle osteotomy.

Catastrophic Polyethylene Failure and Fractured Femoral Component in Modern Knee Arthroplasty Design: A Case Report.

Case: We report a 67-year-old gentleman who presented with a painful unstable knee. He had undergone a successful total knee arthroplasty 12 years earlier and was highly functional. He presented with a 10-month history of mild pain, instability, and gait alteration.

Overview of Randomized Controlled Trials in Total Knee Arthroplasty (47,675 Patients): What Have We Learnt?

Background: The aim of this study is to provide an overview of randomized controlled trials (RCTs) in primary total knee arthroplasty summarizing the available high-quality evidence.

Methods: Following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we searched the Cochrane Central Register of Controlled Trials (CENTRAL, 2019, Issue 3), Ovid MEDLINE, and Embase. We excluded nonrandomized trials, trials on unicompartmental knee arthroplasty or revision surgery, systematic reviews, and meta-analyses.

Extensor mechanism reconstruction "Tubeplasty" in total knee arthroplasty with previous patellectomy: Surgical technique and clinical outcomes.

Purpose: to evaluate our consecutive series of tubeplasty and extensor mechanism reconstruction during knee arthroplasty in patients with previous patellectomy.

Methods: we describe our surgical technique and present a retrospective consecutive series of 4 patients with a minimum 6 months follow-up. Knee society score (KSS), clinical and radiographic outcomes were collected at final follow up.

myHip&Knee: Improving Patient Engagement and Self-Management Through Mobile Technology.

Given the increasing volume of hip and knee replacement surgery with reduced hospital stays and resources, we explored technology to address gaps in patient care and enhance self-management. The team at the Holland Orthopaedic and Arthritic Centre of Sunnybrook Health Sciences Centre, which performs a high volume of joint replacement surgery, partnered with patients and a health technology company to create a mobile app: myHip&Knee. The results to date demonstrate that the app improves patient experience and reduces follow-up calls to surgeons' offices, ultimately reducing demand on healthcare resources.

A Phase IV Study of Thromboembolic and Bleeding Events Following Hip and Knee Arthroplasty Using Oral Factor Xa Inhibitor.

Background: Multiple randomized controlled trials have documented the effectiveness of rivaroxaban in the prevention of venous thromboembolism up to 1-month following total joint arthroplasty. However, the effectiveness and safety of rivaroxaban in the real-world setting, outside of the strict protocols used by randomized clinical trials, are unknown.

Methods: This was a prospective, observational, noninterventional, phase IV study of 3914 consecutive patients who underwent total joint arthroplasty from June 2010 to December 2012.

Patient-reported compliance with thromboprophylaxis using an oral factor Xa inhibitor (rivaroxaban) following total hip and total knee arthroplasty.

This prospective study examines patient non-compliance (NC) for an oral factor Xa inhibitor (Rivaroxaban) when used as venous thromboembolic (VTE) prophylaxis following lower limb arthroplasty. A total of 3145 patients underwent surgery from May 2010 to December 2011. At 6 weeks patients completed an anonymous self-administered questionnaire.

Using outcome measure results to facilitate clinical decisions the first year after total hip arthroplasty.

Study Design: Variable-occasion, repeated-measures design.

Objectives: To model change in lower extremity functional status of patients 1 year after total hip arthroplasty (THA), using the Lower Extremity Functional Scale (LEFS) and the 6-minute walk test (6MWT), and, secondarily, to provide clinicians with useful data to guide practice.

Background: Given the prevalence of THA and current resource pressures, standardized outcome measures play an important role in providing physical therapists with objective knowledge about postoperative recovery and prognosis.

Assessing recovery and establishing prognosis following total knee arthroplasty.

Background And Purpose: Information about expected rate of change after arthroplasty is critical for making prognostic decisions related to rehabilitation. The goals of this study were: (1) to describe the pattern of change in lower-extremity functional status of patients over a 1-year period after total knee arthroplasty (TKA) and (2) to describe the effect of preoperative functional status on change over time.

Subjects: Eighty-four patients (44 female, 40 male) with osteoarthritis, mean age of 66 years (SD=9), participated.

Modeling early recovery of physical function following hip and knee arthroplasty.

Background: Information on early recovery after arthroplasty is needed to help benchmark progress and make appropriate decisions concerning patient rehabilitation needs. The purpose of this study was to model early recovery of physical function in patients undergoing total hip (THA) and knee (TKA) arthroplasty, using physical performance and self-report measures.

Methods: A sample of convenience of 152 subjects completed testing, of which 69 (mean age: 66.

Preoperative function and gender predict pattern of functional recovery after hip and knee arthroplasty.

Gender, preoperative function, and other variables were explored as predictors of recovery after total hip and knee arthroplasty. One hundred fifty-two subjects (63.8 +/- 10.

Assessing stability and change of four performance measures: a longitudinal study evaluating outcome following total hip and knee arthroplasty.

Background: Physical performance measures play an important role in the measurement of outcome in patients undergoing hip and knee arthroplasty. However, many of the commonly used measures lack information on their psychometric properties in this population. The purposes of this study were to examine the reliability and sensitivity to change of the six minute walk test (6MWT), timed up and go test (TUG), stair measure (ST), and a fast self-paced walk test (SPWT) in patients with hip or knee osteoarthritis (OA) who subsequently underwent total joint arthroplasty.

Classifying failed hip arthroplasty: generalizability of reliability and validity.

Interrater reliability and validity of a radiographic severity classification was evaluated in 81 patients having revision hip arthroplasty. Severity was rated separately on the femoral and acetabular sides using a five-level scale ranging from no significant loss of bone stock to uncontained loss of bone stock and discontinuity. Three academic orthopaedic surgeons rated preoperative anteroposterior radiographs taken within 6 weeks of surgery.

The relationship between self-report and performance-related measures: questioning the content validity of timed tests.

Objective: To examine the determinants of the modest correlation between self-report and performance-related measures in patients with osteoarthritis of the hip or knee.

Methods: Measures included the Lower Extremity Functional Scale (LEFS), the self paced walk, timed up-and-go, and stair test. Each performance measure consisted of 3 domains: time, pain (visual analog scale), and exertion (Borg scale).