Incidence of Injury for Professional Soccer Players in the United States: A 6-Year Prospective Study of Major League Soccer.

Background: Despite an abundance of injury research focusing on European professional soccer athletes, there are limited injury data on professional soccer players in the United States.

Purpose: To describe the epidemiology of injury across multiple years in Major League Soccer (MLS) players.

Study Design: Descriptive epidemiology study.

Increased Bite Distance From the Edge Lowers Risk of Pullout of Simple Sutures from Acellular Dermal Allograft.

Purpose: To investigate whether pullout strength in the acellular dermal allograft matrix (ADM) used for superior capsule reconstruction depends on the distance from the edge of the graft.

Methods: ADM used for superior capsule reconstruction was obtained and cut into 30 squares. Two sutures were placed through the center of each graft by using a loaded Keith needle and forming a simple stitch.

Injury Surveillance in Major League Soccer: A 4-Year Comparison of Injury on Natural Grass Versus Artificial Turf Field.

Background: Artificial playing surfaces are becoming more common due to decreased cost of maintenance and increased field usability across different environmental conditions. The Fédération Internationale de Football Association (FIFA) has approved newer generation artificial turf for soccer competition at the elite level, but many elite-level athletes prefer to play on natural grass surfaces due to a perceived increase in injury rate, discomfort, and fatigability on artificial turf.

Hypothesis: Injury rates and rates of individually categorized types of injury experienced on artificial turf are noninferior to rates of injury on the standard comparator, natural grass, in elite-level Major League Soccer athletes.

Head Injury in Soccer: From Science to the Field; summary of the head injury summit held in April 2017 in New York City, New York.

There has been an increased focus and awareness of head injury and sport-related concussion (SRC) across all sports from the medical and scientific communities, sports organisations, legislators, the media and the general population. Soccer, in particular, has been a focus of attention due to the popularity of the game, the frequency of SRC and the hypothesised effects of repetitive heading of the ball. Major League Soccer, US Soccer and the National Women's Soccer League jointly hosted a conference entitled, 'Head Injury in Soccer: From Science to the Field', on 21-22 April 2017 in New York City, New York.

The Effect of Playing Position on Injury Risk in Male Soccer Players: Systematic Review of the Literature and Risk Considerations for Each Playing Position.

Soccer (football) is a complex contact sport with a substantial risk of injury. As injury surveillance is the first step of the injury prevention paradigm, soccer epidemiology is well reported in the existing literature, but less is known about the actual role of player position on the general injury risk. The goal of this study is to present the existing evidence regarding the influence of player's position on general injury risk in male soccer.

Variables Associated with Chondral and Meniscal Injuries in Anterior Cruciate Ligament Surgery.

This article aims to evaluate factors associated with chondral and meniscal lesions in primary and revision anterior cruciate ligament (ACL) reconstructions. ACL reconstructions from 2001 to 2008 at a single institution were retrospectively analyzed. Logistic regression was used to estimate the association between chondral and meniscal injuries and age, gender, tear chronicity, additional ligamentous injuries, sport type, and participation level.

Return-to-Play Recommendations After Cervical, Thoracic, and Lumbar Spine Injuries: A Comprehensive Review.

Context: Currently, there is a national focus on establishing and disseminating standardized guidelines for return to play for athletes at all levels of competition. As more data become available, protocols and guidelines are being refined and implemented to assist physicians, coaches, trainers, players, and parents in making decisions about return to play. To date, no standardized criteria for returning to play exist for injuries to the spine.

Return to play after anterior cruciate ligament reconstruction in National Football League athletes.

Background: Rupture of the anterior cruciate ligament (ACL) is a common and potentially career-threatening injury in the National Football League (NFL). The return to play (RTP) percentage and the factors affecting RTP after ACL reconstruction in NFL players are not well defined.

Purpose: To determine the actual rate of return to professional football play in the NFL after ACL reconstruction surgery and to determine what factors can predict ability to RTP.

Thermal capsulorrhaphy in the treatment of multidirectional instability of the shoulder.

The treatment of symptomatic multidirectional instability (MDI) of the shoulder has proven a challenge to orthopaedic surgeons. Patients who refuse activity modification often fail nonsurgical management, and traditional surgical approaches may trade the dysfunction of instability for that of decreased motion and possible future arthrosis. Recently, several methods of arthroscopic thermal capsulorrhaphy have gained popularity.

Revision anterior cruciate ligament reconstruction surgery.

In 1995, it was reported that 60,000 to 75,000 anterior cruciate ligament (ACL) reconstructions were being performed annually in the United States. Successful long-term results are achieved in 75% to 95% of these patients, but 8% have unsatisfactory results due to recurrent instability and graft failure. With the increasing popularity of this procedure, ACL revision surgery has also become increasingly common.

Incomplete bicruciate knee injuries: Results of treatment with isolated anterior cruciate ligament reconstruction.

Purpose: To determine how the presence of a partial injury to the posterior cruciate ligament (PCL) in conjunction with an anterior cruciate ligament (ACL) tear affects the outcome of ACL reconstruction.

Type Of Study: Case series.

Methods: Between 1990 and 1998, 18 patients with surgically documented complete ACL ruptures and partial PCL tears, referred to as "incomplete bicruciate knee injuries," were treated with arthroscopic ACL reconstruction and PCL observation.

Analysis of arthroscopically assisted ankle arthrodesis.

Purpose: Evaluation of an arthroscopically assisted ankle arthrodesis technique for clinical and radiographic union, function, and patient satisfaction.

Type Of Study: Retrospective analysis and review of the literature.

Methods: Twenty-one patients with a mean age of 52.