A Retrospective Analysis of Major League Baseball Hit-by-Pitch Rates before and after the Crackdown on Foreign Substance Use.

OBJECTIVE: Determine whether there was an increased incidence of hit-by-pitch events in Major League Baseball (MLB) following the decision to enforce the foreign substance ban for pitchers during the 2021 season. DESIGN: Descriptive Epidemiological Study. SETTING: Major League Baseball hit-by-pitch data from publicly available Web sites ( mlb.com and fangraphs.com ). PARTICIPANTS: Major League Baseball players during the 2017, 2018, 2019, 2021, and 2022 seasons. INDEPENDENT VARIABLES: Hit-by-pitch exposure data by season and individual pitch type. MAIN OUTCOME MEASURES: Hit-by-pitch incidence rates from the 2017 to 2019 seasons (preenforcement) and the 2021 to 2022 seasons (postenforcement). Rates were compared with incidence rate ratios (IRRs). RESULTS: Hit-by-pitch incidence rate increased from 2.66 to 3.06 per 1000 total pitches (IRR, 1.15 [95% CI, 1.08-1.23]; P < 0.0001) following the enforcement. Incidence rates for 2017, 2018, and 2019 did not differ from each other individually, but incidence rate of all 3 seasons individually were significantly lower than that for the 2021 season ( P < 0.005). Sliders were 29% more likely to hit batters following the enforcement ( P = 0.0015). CONCLUSIONS: Major League Baseball batters were hit by pitches at a significantly higher rate following the league's crackdown on foreign substance use for the 2021 seasons compared with the same time of year during the 2017 to 2019 seasons. This was followed by a slight regression toward preenforcement levels during the 2022 season.

Childhood and Adolescent Sports-Related Overuse Injuries.

Childhood and adolescent sports participation is encouraged because of health and wellness benefits. However, the increasing number of young athletes means there is the potential for more sports-related overuse injuries. Most youth sports injuries occur at the bone's relatively weaker growth centers: the epiphyses and apophyses. Little league shoulder and elbow are common overuse injuries in baseball and other single-arm dominant sports. Little league shoulder is a Salter-Harris fracture of the proximal humerus, and little league elbow is an apophysitis of the medial epicondyle. In both injuries, the athlete often reports decreased throwing velocity or accuracy. The physician should emphasize the Major League Baseball Pitch Smart guidelines when counseling on rehabilitation and prevention. Gymnast's wrist is a distal radial epiphysis injury in which the patient reports chronic wrist pain. Gymnast's wrist should be managed conservatively with immobilization. Spondylolysis is an important cause of overuse back pain in young athletes and can progress to spondylolisthesis. Patellofemoral pain syndrome presents with anterior knee pain, often made worse with running or descending stairs and improved with physical therapy. Osgood-Schlatter disease and Sinding-Larsen-Johansson disease are forms of knee apophysitis. Calcaneal apophysitis is a common cause of heel pain in young athletes and can be diagnosed clinically with the calcaneal squeeze test. Calcaneal apophysitis is treated conservatively, with good evidence for the use of heel cups and physical therapy.

Academic radiology department subspeciality organization & fellowship offerings: A hodgepodge.

INTRODUCTION: As opportunities for radiologists to subspecialize have increased, many avenues to organize Radiology department subspecialties exist. This study seeks to determine how academic U.S. Radiology departments structure themselves with respect to subspecialty divisions/sections, as there are no current standards for how Radiology departments are subdivided. Additionally, the extent of Radiology fellowships offered are assessed. The websites of academic U.S. Radiology departments, a highly influential source of information, were analyzed to perform this study. MATERIALS & METHODS: Radiology department websites of all allopathic U.S. medical schools (n = 148) were assessed for the following: presence/absence of Radiology department subdivisions, division/section labels, number of divisions/sections, division/section titles, presence/absence of Radiology fellowships, number of fellowships, and fellowships titles. RESULTS: 114/148 (77 %) medical schools had Radiology department websites. According to their respective websites, 66/114 (58 %) academic Radiology departments had subspecialty divisions/sections, whereas 48/114 (42 %) had no divisions/sections listed. Of the departments that had divisions/sections, the median number of divisions/sections per department was nine, and ranged from two to 14. Fellowships were offered at 82/114 (72 %) academic Radiology departments that had websites, and the median number was six, ranging from one to 13. CONCLUSION: There is marked heterogeneity of departmental organization across Radiology departments nationwide, likely due to the lack of current standards for how Radiology departments are subdivided into divisions/sections. Of the 77 % of medical schools that have Radiology department websites, only 58 % of departments listed divisions/sections, and 72 % posted fellowship offerings.