Concussion-Recovery Trajectories Among Tactical Athletes: Results From the CARE Consortium.

Context: Assessments of the duration of concussion recovery have primarily been limited to sport-related concussions and male contact sports. Furthermore, whereas durations of symptoms and return-to-activity (RTA) protocols encompass total recovery, the trajectory of each duration has not been examined separately.

Objective: To identify individual (eg, demographics, medical history), initial concussion injury (eg, symptoms), and external (eg, site) factors associated with symptom duration and RTA-protocol duration after concussion.

A cohort study to identify and evaluate concussion risk factors across multiple injury settings: findings from the CARE Consortium.

Background: Concussion, or mild traumatic brain injury, is a major public health concern affecting 42 million individuals globally each year. However, little is known regarding concussion risk factors across all concussion settings as most concussion research has focused on only sport-related or military-related concussive injuries.

Methods: The current study is part of the Concussion, Assessment, Research, and Education (CARE) Consortium, a multi-site investigation on the natural history of concussion.

Descriptive Analysis of a Baseline Concussion Battery Among U.S. Service Academy Members: Results from the Concussion Assessment, Research, and Education (CARE) Consortium.

Introduction: The prevalence and possible long-term consequences of concussion remain an increasing concern to the U.S. military, particularly as it pertains to maintaining a medically ready force.

Reconsidering Return-to-Play Times: A Broader Perspective on Concussion Recovery.

Background: Return-to-play protocols describe stepwise, graduated recoveries for safe return from concussion; however, studies that comprehensively track return-to-play time are expensive to administer and heavily sampled from elite male contact-sport athletes.

Purpose: To retrospectively assess probable recovery time for collegiate patients to return to play after concussion, especially for understudied populations, such as women and nonelite athletes.

Study Design: Cohort study; Level of evidence, 3.

Successful Return to Sport After Arthroscopic Shoulder Stabilization Versus Nonoperative Management in Contact Athletes With Anterior Shoulder Instability: A Prospective Multicenter Study.

Background: The debate continues regarding the optimal treatment of intercollegiate contact athletes with in-season anterior shoulder instability.

Purpose: To examine return to sport and recurrent instability in the season after the index in-season anterior instability event.

Study Design: Cohort study; Level of evidence, 2.

Return to play and recurrent instability after in-season anterior shoulder instability: a prospective multicenter study.

Background: There is no consensus on the optimal treatment of in-season athletes with anterior shoulder instability, and limited data are available to guide return to play.

Purpose: To examine the likelihood of return to sport and the recurrence of instability after an in-season anterior shoulder instability event based on the type of instability (subluxation vs dislocation). Additionally, injury factors and patient-reported outcome scores administered at the time of injury were evaluated to assess the predictability of eventual successful return to sport and time to return to sport during the competitive season.

Fractures of the thoracolumbar spine sustained by soldiers in vehicles attacked by improvised explosive devices.

Study Design: Retrospective analysis.

Objective: To analyze the types of orthopedic spine fractures sustained by North Atlantic Treaty Organization soldiers when vehicles are attacked by improvised explosive devices (IEDs), with specific focus on the flexion-distraction type thoracolumbar fracture (Chance fracture).

Summary Of Background Data: Operation Enduring Freedom is the North Atlantic Treaty Organization's effort in Afghanistan.

Effect of posterior cruciate ligament deficiency on in vivo translation and rotation of the knee during weightbearing flexion.

Background: The effect of posterior cruciate ligament (PCL) deficiency on 6 degrees of freedom in vivo knee-joint kinematics is unclear.

Hypothesis: In addition to constraining anterior-posterior translation, the PCL also functions to constrain the medial-lateral translation and rotation of the knee during weightbearing flexion of the knee.

Study Design: Controlled laboratory study.

Arthroscopic evaluation of radiofrequency chondroplasty of the knee.

Background: Considerable debate exists over the use of radiofrequency-based chondroplasty to treat partial-thickness chondral defects of the knee. This study used second-look arthroscopy to evaluate cartilage defects previously treated with bipolar radiofrequency-based chondroplasty.

Hypothesis: Partial-thickness articular cartilage lesions treated with bipolar radiofrequency-based chondroplasty will show no progressive deterioration.

The use of a side-opening injection cannula in vertebroplasty: a technical note.

Study Design: A human cadaveric investigation was conducted to determine the effect that a side-opening injection cannula in monopedicular percutaneous vertebroplasty had on the vertebrae filling pattern.

Objectives: To assess the filling pattern in vertebroplasty using a monopedicular technique, and to compare a standard front-opening filling cannula with a side-opening cannula.

Summary Of Background Data: Vertebroplasty is an effective treatment for osteoporotic vertebral fractures.