This case study examines an adolescent athlete who had an avulsion fracture of the lesser tuberosity of the humerus. This is a relatively rare injury, although a collection of case studies have identified an increase in this type of injury in the past 15 years. Uniquely, the patient experienced a delay in appropriate diagnosis for approximately 3 years from the time of his initial injury. This is one of the most significant delays in diagnosis and treatment in the current body of literature regarding lesser tuberosity fractures. The authors include a detailed series of imaging studies, including preoperative plain radiographs, preoperative computed tomography, intraoperative arthroscopic images, and postoperative plain radiographs. In addition, a thorough description of the patient's surgery is presented. The degree of scarring to the axillary nerve present in this patient required conversion to a full open reduction. The authors' aim is that this case can be used as a reference for future surgical decision making, particularly in pediatric patients whose injuries are highly chronic or who are actively involved in athletic physical training programs. [Orthopedics. 20XX;XX(X):xx–xx.]

本案例研究检查了一名患有肱骨小结节撕脱性骨折的青少年运动员。这是一种相对罕见的伤害，尽管一系列案例研究表明在过去 15 年中此类伤害有所增加。独特的是，患者从最初受伤时起大约 3 年才得到适当的诊断。这是目前关于小结节骨折的文献中最严重的诊断和治疗延误之一。作者包括一系列详细的影像学研究，包括术前 X 线平片、术前计算机断层扫描、术中关节镜图像和术后 X 线平片。此外，还对患者的手术进行了详尽的描述。该患者腋神经瘢痕形成的程度需要转换为完全切开复位术。作者的目的是，该病例可作为未来手术决策的参考，特别是对于严重慢性损伤或积极参与体育锻炼计划的儿科患者。[骨科。20XX;XX(X):xx–xx.]