Prevalence and Clinical Characteristics of Osteochondritis Dissecans of the Humeral Capitellum Among Adolescent Baseball Players

Kida, Yoshikazu; Morihara, Toru; Kotoura, Yoshihiro; Hojo, Tatsuya; Tachiiri, Hisakazu; Sukenari, Tsuyoshi; Iwata, Yoshio; Furukawa, Ryo; Oda, Ryo; Arai, Yuji; Fujiwara, Hiroyoshi; Kubo, Toshikazu

doi:10.1177/0363546514536843

Cited by 139 publications

(116 citation statements)

References 28 publications

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“…En cambio,fue ampliamente tratada por la literatura clínica del comportamiento corporal de los deportistas (e.g. Kida et al 2014;Matsuura et al 2014) debido a que las lesiones en esta articulación suelen estar asociadas con el movimiento de lanzamiento (Guerra y Timmerman 1996). En este caso se trata de un individuo masculino, con dieta predominantemente terrestre.…”

Section: Discussionunclassified

“…Estos últimos explicarían la alta prevalencia de este tipo de lesiones en atletas de alto rendimiento (Aichroth 1971;Cahill 1995;Takahara et al 1999). Por ejemplo, puede alcanzar entre un 2,1% (Matsuura et al 2014) y un 3,4% en la tróclea del húmero en jugadores de béisbol (Kida et al 2014). En cambio, en poblaciones no asociadas con la actividad física deportiva las frecuencias de OCD son menores, alcanzando por ejemplo entre un 0,01 y un 0,06% en el caso de la rodilla (Lindén 1976;Petersen et al 2006;Solomon et al 2010).…”

Section: Terminología Patogénesis Y Epidemiología General De La Ocdunclassified

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Osteocondritis disecante. Primeros resultados en restos humanos de cazadores-recolectores del Holoceno en Patagonia austral

et al. 2018

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RMA Osteocondritis disecante. Primeros resultados en restos humanos de cazadores-recolectores del Holoceno en Patagonia australLa osteocondritis disecante (OCD) es una condición caracterizada por la separación localizada de un fragmento del cartílago articular y el hueso subcondral, que afecta a las epífisis articulares de humanos y otros mamíferos (e.g. perros, gatos, cerdos, ratas, caballos, entre otros) (Edmonds y Heyworth 2014; Schenck y Goodnight 1996). Ha sido comúnmente estudiada en bioarqueología como un indicador asociado con la actividad física, aunque otros componentes etiológicos pueden estar involucrados (e.g. factores genéticos-hereditarios, variaciones anatómicas de las articulaciones, isquemia del cartílago durante el crecimiento o la vejez de un individuo; Bulgheroni et al. 2017;Bullough 2004;Ytrehus et al. 2007).En Argentina, son escasas las investigaciones paleopatológicas que han considerado el análisis de la OCD en restos humanos, las cuales en general consistieron en relevamientos descriptivos de lesiones en individuos

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Section: Discussionunclassified

Section: Terminología Patogénesis Y Epidemiología General De La Ocdunclassified

Osteocondritis disecante. Primeros resultados en restos humanos de cazadores-recolectores del Holoceno en Patagonia austral

et al. 2018

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“…We believe that our data coincide with a growing body of evidence that pain and injury in the young thrower is more closely related to the cumulative number of throws throughout the course of a year rather than the number of pitches in a given game or season. 5,6,9,10 In their position statement for youth baseball players, The American Sports Medicine Institute recommend that youth pitchers not participate in competitive pitching for at least 4 months per year, and that they should not perform overhead throwing of any kind for at least 2 to 3 months per year, with 4 being preferred. 1 In our cohort, nearly 70% of players were year-round players, violating this recommendation.…”

Section: Discussionmentioning

confidence: 99%

Are the Current Little League Pitching Guidelines Adequate? A Single-Season Prospective MRI Study

Pytiak

Stearns

Bastrom

et al. 2017

Orthopaedic Journal of Sports Medicine

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Background:Little League throwing guidelines have recently been implemented in an attempt to lessen the growing number of elbow injuries occurring in youth baseball players.Hypothesis/Purpose:The purpose of this study was to examine pre- and postseason changes seen on magnetic resonance imaging (MRI) in youth baseball players’ elbows in an attempt to identify risk factors for pain and MRI abnormalities, with a particular focus on the current Little League guidelines. We hypothesized that MRI abnormalities would be common in pitchers with high pitch counts and poor guideline compliance.Study Design:Cohort study; Level of evidence, 2.Methods:A prospective study of Little League players aged 10 to 13 years was performed. Players were recruited prior to the start of the season and underwent bilateral elbow MRI as well as a physical examination and completed a questionnaire addressing their playing history and arm pain. At the end of the season, a repeat MRI and physical examination were performed. MRIs were read by blinded radiologists. During the season, player statistics including innings played, pitch counts, and guideline compliance were recorded. Physical examination findings and player statistics were compared between subjects with and without MRI changes utilizing chi-square and analysis of variance techniques.Results:Twenty-six players were enrolled. Despite 100% compliance with pitching guidelines, 12 players (48%) had abnormal MRI findings, and 28% experienced pain during the season. There was a significant difference in distal humeral physeal width measured pre- to postseason (1.54 vs 2.31 mm, P < .001). There was a significant loss of shoulder internal rotation during the season, averaging 11°. While pitch counts, player position, and throwing curveballs/sliders were not significantly associated with changes seen on MRI, year-round play was associated with abnormalities (P < .05). Much lower compliance (<50%) was observed with nonenforced guidelines, including avoidance of single-sport specialization, year-round play, and throwing curveballs/sliders.Conclusion:Arm pain and MRI abnormalities of the medial elbow are common in Little League baseball players who comply with the Little League throwing guidelines, especially those playing year-round.

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“…US imaging has been used to diagnose early COCD without elbow pain and to provide an opportunity for conservative treatment 2, 12. Kida et al also used US imaging to investigate the prevalence of COCD among junior high‐school and high‐school baseball players who rarely visit medical institutions because of being minimally symptomatic 13. Takahara et al reported US criteria that distinguish between stable and unstable COCD lesions for patient management decisions.…”

Section: Introductionmentioning

confidence: 99%

Comparison of sonography and MRI in the evaluation of stability of capitellar osteochondritis dissecans

Yoshizuka

Sunagawa

Nakashima

et al. 2017

J of Clinical Ultrasound

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PurposeTo compare the diagnostic accuracies of ultrasonography (US) and magnetic resonance imaging (MRI) with intraoperative capitellar osteochondritis dissecans (COCD) fragment stability findings.MethodsPatients whose International Cartilage Repair Society (ICRS) osteochondritis dissecans (OCD) classifications were I/II (stable) or III (unstable) were included. Patients underwent preoperative US and MRI. On US, lesions were evaluated as unstable when irregular contours of the chondral surface were observed. On MRI, lesions were evaluated as unstable when articular bone irregularity, a T2 high signal intensity interface, or a high signal intensity line through the articular cartilage was observed. Using the surgical assessment as the gold standard, accuracies of fragment stability diagnoses were calculated for US and MRI.ResultsThirty‐four patients with OCD classifications of I/II (stable) or III (unstable) were included. Twenty‐four patients (stable: 12, unstable: 12) underwent preoperative US; 22 (stable: 11, unstable: 11) underwent preoperative MRI. Preoperative US and MRI stability assessments correctly matched intraoperative fragment findings in 23 of 24 patients and 16 of 22 patients, respectively. US criteria in this study achieved superior accuracy compared with MRI criteria (96% vs. 73%; P < .05).ConclusionUS was a useful tool for evaluating fragment instability in COCD.

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Prevalence and Clinical Characteristics of Osteochondritis Dissecans of the Humeral Capitellum Among Adolescent Baseball Players

Cited by 139 publications

References 28 publications

Osteocondritis disecante. Primeros resultados en restos humanos de cazadores-recolectores del Holoceno en Patagonia austral

Osteocondritis disecante. Primeros resultados en restos humanos de cazadores-recolectores del Holoceno en Patagonia austral

Are the Current Little League Pitching Guidelines Adequate? A Single-Season Prospective MRI Study

Comparison of sonography and MRI in the evaluation of stability of capitellar osteochondritis dissecans

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