Two-year follow-up study of subchondral surface irregularities of the capitellum on ultrasonography in baseball players under the age of 10 years
Two-year follow-up study of subchondral surface irregularities of the capitellum on ultrasonography in baseball players under the age of 10 years
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DOI：
10.1007/s00256-017-2724-4
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发表时间：
2017-11-01
影响因子：
2.1
通讯作者：
Sairyo, Koichi
中科院分区：
文献类型：
--
作者：
Iwame, Toshiyuki;Matsuura, Tetsuya;Sairyo, Koichi
目的探讨10岁以下少年棒球运动员肱骨小头软骨下骨的超声表现是否为早期肱骨小头剥脱性骨软骨炎（osteochondritisdissocians，OCD）的标志。2或3。被归类为1a级或1b级的受试者显示出软骨下骨表面的不规则性，并通过放射学检查对强迫症进行了研究。结果在第一次检查时，11/321（3.4%）有不规则的肱骨小头的软骨下表面[1a级7/321（2.2%），1b级4/321（1.2%）]。7名等级为1a的球员在X光片上没有显示出强迫症或Panner病的证据，并在2年随访时被重新分类为0级。所有4名球员与1B级被重新分类为0级在后续的1和2 years later.Conclusion subchondrophic骨表面的不规则性的肱骨小头超声检查在10岁以下的儿童可能不是疾病的指标，而是代表正常发育过程中的骨化的变化。
Objective To determine whether subchondral surface irregularities of the capitellum on ultrasonography in baseball players under the age of 10 years are indicative of early osteochondritis dissecans (OCD) of the capitellum.Materials and methods A total of 321 players aged 6-9 years underwent ultrasonographic examination, and the findings for the subchondral bone of the capitellum on the throwing side were graded as 0, 1a, 1b, 2, or 3. Subjects classified as grade 1a or 1b showed irregularities of the subchondral bone surface and were investigated radiographically for OCD. All players continued to throw and were re-examined by ultrasonography after 1 and 2 years.Results At the first examination, 11/321 (3.4%) had irregularities at the subchondral surface of the capitellum [grade 1a in 7/321 (2.2%); grade 1b in 4/321 (1.2%)]. The seven players with grade 1a showed no evidence of OCD or Panner's disease on radiography and were reclassified as grade 0 at the 2-year follow-up. All four players with grade 1b were reclassified as grade 0 at follow-up 1 and 2 years later.Conclusion Subchondral bone surface irregularities of the capitellum on ultrasonography in children under the age of 10 years may not be indicative of disease, but rather represent variation of ossification during normal development.