scholarly journals Experience Rate of Elbow Pain and Morphological Abnormality of Humeral Medial Epicondyle among Youth Baseball Players

2016 ◽  
Vol 4 (7_suppl4) ◽  
pp. 2325967116S0012
Author(s):  
Yoshihiro Kotoura ◽  
Toru Morihara ◽  
Yoshikazu Kida ◽  
Tsuyoshi Sukenari ◽  
Ryuhei Furukawa ◽  
...  
Keyword(s):  
Medial Epicondyle ◽  
Morphological Abnormality ◽  
Baseball Players ◽  
Elbow Pain ◽  
Youth Baseball

The Influence of Pitch Velocity on Medial Elbow Pain and Medial Epicondyle Abnormality Among Youth Baseball Players

2020 ◽  
Vol 48 (7) ◽  
pp. 1601-1607 ◽  
Author(s):  
Daisuke Kurokawa ◽  
Takayuki Muraki ◽  
Hiroaki Ishikawa ◽  
Kiyotsugu Shinagawa ◽  
Hideaki Nagamoto ◽  
...  
Keyword(s):  
Medial Epicondyle ◽  
Level Of Evidence ◽  
Baseball Players ◽  
Elbow Pain ◽  
The Past ◽  
Youth Baseball ◽  
Elbow Injuries ◽  
Internal Rotation Angle ◽  
Straight Leg Raise ◽  
The Relationship

Background: Pitch velocity is associated with elbow injuries among skillful baseball players. However, the relationship between pitch velocity and throwing elbow injuries among youth players has not yet been clarified. Purpose: To investigate the influence of pitch velocity on medial elbow pain and medial epicondyle abnormality among youth baseball players. Study Design: Cohort study; Level of evidence, 3. Methods: The participants consisted of 256 elementary school players (mean age, 11 ± 1 years; range, 9-12 years). The medial aspect of the elbow was evaluated using ultrasound imaging. A questionnaire was used to investigate past or present pain in the elbow, background of the players (age, height, body mass index, and years of baseball experience), and playing environment (number of days of practice in a week, experience as a pitcher, and cryotherapy of the shoulder and elbow after practice). Positioning of the scapula, range of motion in shoulder internal/external rotations and hip internal rotation, angle of the straight-leg raise, and heel-to-buttock distance were measured. The pitch velocity was recorded using a pitch velocity radar gun. The relationship between these variables and the presence of medial epicondyle abnormality, as well as past or present elbow pain, were statistically analyzed. Results: A medial epicondyle abnormality was observed in 130 players (51%), elbow pain in the past in 65 players (25%), and elbow pain during the examination in 14 players (5%). Sixty-nine players (27%) experienced elbow pain either in the past or during examination. Abnormality of the medial epicondyle had a relationship with the pitch velocity (odds ratio [OR], 1.1 for increase of 1 km/h; 95% CI, 1.1-1.2; P < .0001) and the number of practice days in a week (OR, 1.8 for increase of the practice days; 95% CI, 1.4-2.5; P < .0001). Pitch velocity was also significantly related with past pain, present pain, and past and/or present pain of the elbow (OR [km/h], 1.1, 1.1, 1.1; 95% CI, 1.0-1.1, 1.0-1.2, 1.1-1.2; P < .0001, P = .002, P < .0001, respectively). Conclusion: Pitch velocity was significantly associated with abnormality of the medial epicondyle and elbow pain. A 10-km/h increase in pitch velocity would increase the risk of medial epicondyle abnormality and medial elbow pain by 3 times.

scholarly journals Asymptomatic Medial Elbow Ultrasound Abnormality in Youth Baseball Players Is an Independent Risk Factor for Elbow Injury: A Prospective Cohort Study

2021 ◽  
Vol 9 (4) ◽  
pp. 232596712098679
Author(s):  
Hitoshi Shitara ◽  
Tsuyoshi Tajika ◽  
Takuro Kuboi ◽  
Tsuyoshi Ichinose ◽  
Tsuyoshi Sasaki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Cohort Study ◽  
External Rotation ◽  
Medial Epicondyle ◽  
Baseball Players ◽  
Elbow Pain ◽  
Elbow Injury ◽  
Youth Baseball ◽  
Elbow Injuries

Background: Youth baseball players who experience elbow pain during the season frequently exhibit radiographic elbow abnormalities. However, it is unknown whether asymptomatic elbow abnormalities are risk factors for in-season elbow injuries. Purpose: To determine whether the preseason presence of asymptomatic medial epicondyle apophysitis is a risk factor for in-season elbow injuries in youth baseball players. Study Design: Cohort study; Level of evidence, 2. Methods: Youth baseball players (N = 210; age range, 7-12 years) with no pain or history of injury in their throwing arms underwent preseason evaluations that included shoulder and elbow range of motion measurements, shoulder muscle strength testing, and ultrasound elbow scans with a multifrequency 13-MHz linear array transducer. Over 1 year of play, the players and their parents maintained daily elbow pain diaries. Elbow injuries were defined as medial elbow symptoms that prevented ball throwing for ≥8 days. Results: The preseason ultrasound evaluation revealed medial epicondyle apophysitis in 59 players. In the year following, elbow injuries occurred in 17 (28.8%) players with preseason medial epicondyle apophysitis and 18 (11.9%) players without apophysitis. Independent predictors of elbow injuries were preseason medial epicondyle apophysitis (odds ratio [OR], 2.488; 95% confidence interval [CI], 1.152-5.376; P = .02) and deficits of abduction (ABD) and external rotation of the dominant shoulder (OR, 0.963; 95% CI, 0.936-0.992; P = .012). Conclusion: Asymptomatic medial epicondyle apophysitis and ABD and external rotation deficits in the dominant shoulder were risk factors for elbow injuries in 7- to 12-year-old youth baseball players. These findings may aid in the design of programs to prevent elbow injuries in this population.

scholarly journals Age-Specific Prevalence and Clinical Characteristics of Humeral Medial Epicondyle Apophysitis and Osteochondritis Dissecans: Ultrasonographic Assessment of 4249 Players

2017 ◽  
Vol 5 (5) ◽  
pp. 232596711770770 ◽  
Author(s):  
Kenichi Otoshi ◽  
Shinichi Kikuchi ◽  
Kinshi Kato ◽  
Ryohei Sato ◽  
Takahiro Igari ◽  
...  
Keyword(s):  
Osteochondritis Dissecans ◽  
Morphological Changes ◽  
Medial Epicondyle ◽  
Baseball Players ◽  
Elbow Pain ◽  
Elbow Injuries ◽  
Bony Healing ◽  
History Of ◽  
Study Participants ◽  
Ultrasonographic Assessment

Background: Traction apophysitis of medial epicondyle (MEC) lesions and osteochondritis dissecans (OCD) of the capitellum are common elbow injuries in adolescent baseball players. However, the age-specific prevalence of these pathologies and their influence on elbow pain remain unknown. Purpose: To investigate the age-specific prevalence of each MEC lesion and capitellar OCD and to identify the incidence of elbow pain in each condition. Study Design: Descriptive epidemiology study. Methods: Study participants consisted of 4249 baseball players aged 6 to 17 years. A questionnaire was used to assess history of elbow pain, and morphological changes of the elbow joint were assessed using ultrasonography. Results: Regarding MEC lesions, fragmented (FG) and irregular (IR) lesions both reached their greatest respective prevalence at 11 to 12 years of age. After 14 years of age, IR decreased sharply, whereas FG was maintained at approximately 10%. Hypertrophic (HT) lesions increased sharply, reaching over 50% at 16 years of age, while there was a decrease in IR and FG lesions in the same age group. The prevalence of capitellar OCD remained the same (approximately 2%) throughout all ages except for in players aged 7 to 8 years (>7%). Players with MEC lesions had significantly greater prevalence of a history of elbow pain compared with those without (68.0% vs 39.1%) and were at a significantly greater risk for FG lesions (odds ratio [OR], 4.04; 95% CI, 3.16-5.22) compared with IR (OR, 3.22; 95% CI, 2.44-4.27) and HT lesions (OR, 2.03; 95% CI, 1.75-2.36). Players with capitellar OCD also had a significantly greater risk of a history of elbow pain (OR, 2.34; 95% CI, 1.40-4.11). Conclusion: Controlling the amount of practice and its intensity according to the condition of each player in the preadolescent and adolescent periods may be important in accelerating bony healing and decreasing preventable elbow pain in adulthood.

scholarly journals Elbow Injuries in Youth Baseball Players Without Prior Elbow Pain

2013 ◽  
Vol 1 (5) ◽  
pp. 232596711350994 ◽  
Author(s):  
Tetsuya Matsuura ◽  
Naoto Suzue ◽  
Shinji Kashiwaguchi ◽  
Kokichi Arisawa ◽  
Natsuo Yasui
Keyword(s):  
Baseball Players ◽  
Elbow Pain ◽  
Youth Baseball ◽  
Elbow Injuries

Risk factors for shoulder and elbow pain in youth baseball players

2017 ◽  
pp. 1-5 ◽  
Author(s):  
Tetsuya Matsuura ◽  
Toshiyuki Iwame ◽  
Naoto Suzue ◽  
Kokichi Arisawa ◽  
Koichi Sairyo
Keyword(s):  
Risk Factors ◽  
Baseball Players ◽  
Elbow Pain ◽  
Youth Baseball

Acute, avulsion fractures of the medial epicondyle while throwing in youth baseball players: A variant of Little League elbow

2010 ◽  
Vol 19 (7) ◽  
pp. 951-957 ◽  
Author(s):  
Daryl C. Osbahr ◽  
Peter N. Chalmers ◽  
Jeremy S. Frank ◽  
Riley J. Williams ◽  
Roger F. Widmann ◽  
...  
Keyword(s):  
Medial Epicondyle ◽  
Baseball Players ◽  
Avulsion Fractures ◽  
Little League ◽  
Youth Baseball

Epidemiology of shoulder and elbow pain in youth baseball players

2016 ◽  
Vol 44 (2) ◽  
pp. 97-100 ◽  
Author(s):  
Tetsuya Matsuura ◽  
Naoto Suzue ◽  
Toshiyuki Iwame ◽  
Kokichi Arisawa ◽  
Shoji Fukuta ◽  
...  
Keyword(s):  
Baseball Players ◽  
Elbow Pain ◽  
Youth Baseball

scholarly journals Prevention of Elbow Injuries in Young Baseball Players: A 6-year Longitudinal Study

2018 ◽  
Vol 6 (7_suppl4) ◽  
pp. 2325967118S0012
Author(s):  
Yoshihiro Kotoura ◽  
Toru Morihara ◽  
Yoshikazu Kida ◽  
Tsuyoshi Sukenari ◽  
Ryuhei Furukawa ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Large Scale ◽  
Medial Epicondyle ◽  
Annual Incidence ◽  
Medical Screening ◽  
Baseball Players ◽  
Elbow Pain ◽  
Elbow Injury ◽  
Elbow Injuries ◽  
Prevention Project

Objectives: Injuries in young baseball players are on the rise. However, there are few large-scale related to injury prevention activities. We have continued an injury prevention project in Kyoto, Japan since 2010. The aim of this study was to verify the preventive effect of our project. Methods: We offered medical screening of elbow for elementary and junior high school players. We examined their elbow manually, performed ultrasonography and guided the players how to check their elbow themselves. Additionally, we instructed baseball coaches and parents regarding injury prevention annually. In this study, a cumulative total of 2624 baseball players (mean age 11.0±0.6) who participated in our injury prevention project (2010-2016) were enrolled. We asked them to answer the questionnaire to investigate the experience of elbow pain and evaluated the tenderness of humeral medial epicondyle and range of motion. Ultrasonography of humeral capitellum and medial epicondyle was examined. Subjects with abnormalities on ultrasonography were further examined through radiographic study and osteochondritis dissecans of the humeral capitellum (OCD) was diagnosed. Humeral medial epicondyle apophysitis was diagnosed with abnormalities of ultrasonography, and physical findings. The annual incidence were investigated and analyzed statistically. P < 0.05 was considered significant for all statistical analysis. Results: The mean prevalence rate of OCD was 1.1% and flexion restriction was 12.3%. There were no significant differences in annual incidence. However, the experience rate of elbow pain was 14.4% in 2010 and 4.4% in 2016, tenderness of humeral epicondyle was 32.2% and 5.8%, extension restriction was 12.5% and 6.9%, and humeral medial epicondyle apophysitis was 22.1% and 5.3%, respectively, that significantly reduced year by year (Table 1). Conclusion: There has been increasing recognition for the importance of preventing the overuse injuries among young baseball players. However, large-scale and longitudinal evaluation studies for preventing elbow injuries have not been reported. The prevalence rates of elbow injuries have generally reduced year by year, which indicates that annual medical screening and educational project for young baseball players, coaches and parents would be an effective approach for preventing elbow injury. [Table: see text]

Hip internal and external rotation range of motion reliability in youth baseball players

2020 ◽  
Vol 61 (1) ◽  
Author(s):  
Garrett S. Bullock ◽  
Edward C. Beck ◽  
Gary S. Collins ◽  
Stephanie R. Filbay ◽  
Kristen F. Nicholson
Keyword(s):  
Range Of Motion ◽  
External Rotation ◽  
Baseball Players ◽  
Youth Baseball
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