To reach the level of elite, most baseball pitchers need to consistently produce high ball velocity but avoid high joint loads at the shoulder and elbow that may lead to injury. This study examined the relationship between fastball velocity and variations in throwing mechanics within 19 baseball pitchers who were analyzed via 3-D high-speed motion analysis. Inclusion in the study required each ...

Simultaneous dislocation of shoulder and humeral shaft fracture is a rare injury, and there is no clear protocol for its treatment. Herein we present a case of a 15-year-old boy, who suffered from a job-related accident and sustained fracture of humeral shaft associated with ipsilateral anterior shoulder dislocation and fracture of greater tuberosity 15 years ago. He received closed reduction o...

BACKGROUND Recurrence of post-burn contractures, following inadequate management of post-burn contractures (PBC), is under reported. It is associated with multiple operations and an increased cost to patients and their families. The purpose of this study was to determine the frequency of recurrence of PBC of the shoulder and the elbow joint three months after surgical intervention and the assoc...

BackgroundShoulder injuries account for a large portion of all recorded in professional baseball. Much is known about other shoulder pathologies the overhead athlete, but incidence and impact acromioclavicular (AC) joint this population are unknown. We examined epidemiology AC Major League Baseball (MLB) Minor (MiLB) players determined on time missed.MethodsThe MLB Health Injury Tracking System...

BACKGROUND Extensive neuromotor development occurs early in human life, and the timing of brain injury may affect the resulting motor impairment. In Part I of this series, it was demonstrated that the distribution of weakness in the upper extremity depended on the timing of brain injury in individuals with childhood-onset hemiparesis. OBJECTIVE The goal of this study was to characterize how t...

CONTEXT The overhead throwing motion is complex, and restrictions in range of motion (ROM) at the hip may place additional demands on the shoulder that lead to injury. However, the relationship between hip and shoulder ROM in athletes with and without a history of shoulder injury is unknown. OBJECTIVE To (1) determine if differences exist in hip and shoulder ROM between professional baseball ...

background : glenoid bone damages consisting of anterior rim erosion and bony avulsion are very important in decision making for treatment of recurrent dislocation in shoulder joint. this study was aimed to determine the prevalence of these damages in patients with anterior recurrent shoulder dislocation. methods : the study was a cross-sectional study evaluating patients with unstable shoulder...

CONTEXT Joint-position sense (JPS) plays a critical role in the stability of shoulder joint. Restoration of JPS is essential to improve rehabilitation outcomes in individuals with shoulder injury. However, the number of affordable and reliable shoulder-JPS measurement methods for everyday clinical practice is limited. OBJECTIVE To estimate reliability and validity of 3 simple shoulder-JPS mea...

Background: The shoulder joint internal rotation deficit is inter alia the most important risk factors for throwing athletes. Thus, the present study aims at investigating the effect of eight weeks of rotator cuff muscles’ specific exercises on the range of motion, proprioception and the activation time of the selective shoulder muscles in male volleyball players with shoulder joint inter...

Dislocation of the sternoclavicular joint is an uncommon injury. The anterior displacement is well recognized but posterior displacement is much more unusual, one per 1600 cases of shoulder trauma (Rowe & Marble, 1958). Early diagnosis is important as this affects ease of reduction and awareness ofpossible damage to the great vessels in the mediastinum. We report two cases where the diagnosis w...