Corrigendum to 'Outcomes of Revision Hip Arthroplasty Using the Supine Anterior- Based Muscle Sparing Approach' [Arthroplasty Today 14 (2022) 199-203].

[This corrects the article DOI: 10.1016/j.artd.

Outcomes of Revision Hip Arthroplasty Using the Supine Anterior-Based Muscle Sparing Approach.

Background: In the United States, the number of revision total hip arthroplasty (THA) cases is projected to grow from 50,000 in 2014 to 85,000 by 2030. The anterior-based muscle sparing approach (ABMS) has been described as a viable approach for primary THA, but little has been written in the revision setting. This study compares the supine ABMS approach to alternative approaches in revision THA.

Outcomes of the Supine Anterior-based Muscle-sparing Approach for Primary and Revision Hip Arthroplasty.

Introduction: Risks and outcomes of total hip arthroplasty (THA) are believed to vary relative to the surgical approach. This study compares the supine anterior-based muscle-sparing (ABMS) approach with its modern-day counterparts.

Methods: A retrospective review was done on 550 patients undergoing primary or revision THA from 2016 to 2018.

An Orthopaedic Virtual Clinical Clerkship for Visiting Medical Students: Early Successes and Future Implications.

Objective: The visiting orthopaedic clerkship is viewed by both students and program directors as an important part of the orthopaedic surgery residency application process, despite being criticized as costly and inefficient. Restrictions due to the COVID-19 pandemic prevented students from participating in in-person clerkships at institutions other than at their home programs, necessitating a virtual replacement for the in-person orthopaedics clerkship experience. It remains unclear how the virtual clerkships will affect the application process this year, and moving forward.

Outcomes of Total Knee Arthroplasty with a Prior Contralateral Above-Knee Amputation: A Report of 10 Cases.

Background: Total knee arthroplasty (TKA) in the setting of a prior contralateral above-knee amputation (AKA) represents a rare scenario with limited reported outcomes. As such, it is difficult for surgeons to effectively counsel these patients relative to risks and expected outcomes after TKA. We report outcomes for a series of 10 such patients.

Individual Patient-reported Activity Levels Before and After Joint Arthroplasty Are Neither Accurate nor Reproducible.

Background: Patients often are asked to report walking distances before joint arthroplasty and when discussing their results after surgery, but little evidence demonstrates whether patient responses accurately represent their activity.

Questions/purposes: Are patients accurate in reporting distance walked, when compared with distance measured by an accelerometer, within a 50% margin of error?

Methods: Patients undergoing THA or TKA were recruited over a 16-month period. One hundred twenty-one patients were screened and 66 patients (55%) were enrolled.

Comparative Effectiveness of Biomarkers to Target Cancer Treatment: Modeling Implications for Survival and Costs.

Background: Biomarkers used at the time of diagnosis to tailor treatment decisions may diffuse into clinical practice before data become available on whether biomarker testing reduces cancer mortality. In the interim, quantitative estimates of the mortality impact of testing are needed to assess the value of these diagnostic biomarkers. These estimates are typically generated by customized models that are resource intensive to build and apply.