A Novel Description of Medial Meniscus Vascularization: A Multicenter Study Introducing the "Medial Meniscal Artery".

Background: The microvasculature of the human meniscus has been previously described by Arnoczky and Warren. However, to date, the qualitative and quantitative extra-articular vascular anatomy of the medial meniscus has not been characterized.

Purposes: To perform a qualitative and quantitative anatomic study of the extra-articular medial meniscal vasculature and to introduce the novel "medial meniscal artery" (MMA), potentially providing future guidelines for the treatment of meniscal abnormalities.

ChatGPT performance on the American Shoulder and Elbow Surgeons maintenance of certification exam.

Background: While multiple studies have tested the ability of large language models (LLMs), such as ChatGPT, to pass standardized medical exams at different levels of training, LLMs have never been tested on surgical sub-specialty examinations, such as the American Shoulder and Elbow Surgeons (ASES) Maintenance of Certification (MOC). The purpose of this study was to compare results of ChatGPT 3.5, GPT-4, and fellowship-trained surgeons on the 2023 ASES MOC self-assessment exam.

Performance-Enhancing Drugs in Healthy Athletes: An Umbrella Review of Systematic Reviews and Meta-analyses.

Context: Many clinicians, trainers, and athletes do not have a true understanding of the effects of commonly used performance-enhancing drugs (PEDs) on performance and health.

Objective: To provide an evidence-based review of 7 commonly used pharmacological interventions for performance enhancement in athletes.

Data Sources: PubMed and Scopus databases were searched on April 8, 2022.

Spanish-Speaking Patients Have Limited Access Scheduling Outpatient Orthopaedic Appointments Compared With English-Speaking Patients Across the United States.

Purpose: To evaluate whether Spanish-speaking patients can obtain appointments to outpatient orthopaedic surgery clinics across the United States at a similar rate as English-speaking patients and to examine the language interpretation services available at those clinics.

Methods: Orthopaedic offices nationwide were called by a bilingual investigator to request an appointment with a pre-established script. The investigators called in English asking for an appointment for an English-speaking patient (English-English), called in English requesting an appointment for a Spanish-speaking patient (English-Spanish), and called in Spanish asking for an appointment for a Spanish-speaking patient (Spanish-Spanish) in a random order.

Meniscal Extrusion Measurements After Posterior Medial Meniscus Root Tears: A Systematic Review and Meta-analysis.

Background: Meniscal extrusion has become increasingly utilized when evaluating meniscus root abnormalities. However, no consensus definition or approach exists on how to measure extrusion.

Purpose/hypothesis: The purpose of this study was to evaluate the extent of heterogeneity in meniscal extrusion measurement techniques and reported extrusion values in knees with posterior medial meniscus root tears (PMMRTs).

Arthroscopic biceps tenodesis using the knotless lasso technique.

Long head biceps tendinopathy can be a significant pain generator, often presenting with pain localised to the anterior shoulder. Biceps tenodesis, both open and arthroscopic, is a well-established treatment for long head biceps pathology. In this presentation, we describe a novel arthroscopic onlay technique for long head biceps tenodesis using a lasso configuration with two knotless suture anchors that provide an efficient, low-profile construct to limit scarring and adhesions while providing circumferential fixation.

Inconsistencies in Controlling for Risk Factors for Recurrent Shoulder Instability After Primary Arthroscopic Bankart Repair: A Systematic Review.

Background: Failure rates after arthroscopic shoulder stabilization are highly variable in the current orthopaedic literature. Predictive factors for risk of failure have been studied to improve patient selection, refine surgical techniques, and define the role of bony procedures. However, significant heterogeneity in the analysis and controlling of risk factors makes evidence-based management decisions challenging.

Radiographic and Clinical Outcomes After Tibial Tubercle Osteotomy for the Treatment of Patella Alta: A Systematic Review and Meta-analysis.

Background: Patella alta is a known risk factor for patellar instability and, in the setting of recurrent patellar instability with significant patella alta, correction of patellar height with a tibial tubercle osteotomy (TTO) may help decrease the failure of soft tissue-based stabilization.

Purpose: To perform a systematic review and meta-analysis of radiographic and clinical outcomes after TTO for patella alta.

Study Design: Systematic review and meta-analysis; Level of evidence, 4.

Atraumatic Fracture of the Medial Femoral Condyle of a Total Knee Arthroplasty.

The fracture of the femoral component is a rare complication of a total knee arthroplasty (TKA). This article presents a case in which a 70-year-old man underwent a left press-fit Advance Medial-Pivot Knee System TKA (MicroPort Orthopedics, Arlington, TN) in 2000. Twenty years later, he experienced a nontraumatic onset of knee pain after standing up from a lunge position.

Hip Instability in the Athlete: Anatomy, Etiology, and Management.

In this review, the recent literature evaluating the anatomic considerations, etiology, and management options for athletes with hip instability are investigated. Studies on the osseous, chondrolabral capsuloligamentous, and dynamic muscular contributions to hip stability are highlighted. Microinstability, iatrogenic instability, and femoroacetabular impingement-induced instability are discussed with a focus on demographic and outcomes research in athletes.

Tularemia in a Prosthetic Joint Infection.

Periprosthetic infections occur in approximately 0.8% to 1.9% of all total knee arthroplasties (TKAs).

Step time asymmetry increases metabolic energy expenditure during running.

Unlabelled: To improve locomotor performance, coaches and clinicians encourage individuals with unilateral physical impairments to minimize biomechanical asymmetries. Yet, it is unknown if biomechanical asymmetries per se, affect metabolic energy expenditure in individuals with or without unilateral impairments during running. Thus, inter-leg biomechanical asymmetries may or may not influence distance-running performance.