Sterling J C, Calvo R D, Holden S C
Fort Bend Orthopaedics and Sports Medicine Associates, Sugar Land, TX 77478.
Med Sci Sports Exerc. 1991 Mar;23(3):298-303.
Most overuse injuries are a direct result of repetitive stresses which may create a condition of maltraining. Young athletes are no exception to this rule. Swimming and baseball both create stresses to the humerus which may result in injuries to the shoulder and upper extremity. Stress fractures (fatigue fractures) are usually limited to the lower extremity (i.e., tibia or metatarsal). Upper extremity stress fractures, especially of the humerus, are very uncommon. Precipitating factors include repetitive stresses, low grade external forces, rapid application of muscular force to the bone, or an underlying disease or pathologic weakness of the bone. The majority of these fractures are primarily due to abnormal and repetitive stresses to bones. This case study examines the mechanism of injury, clinical presentation, and treatment of a clinically apparent stress fracture which ultimately converted to an overt humerus fracture in a 14-yr-old cross-trained athlete.
大多数过度使用性损伤是反复应力的直接结果，反复应力可能会导致训练不当的情况。年轻运动员也不例外。游泳和棒球都会对肱骨造成应力，这可能导致肩部和上肢受伤。应力性骨折（疲劳性骨折）通常局限于下肢（即胫骨或跖骨）。上肢应力性骨折，尤其是肱骨的应力性骨折，非常罕见。诱发因素包括反复应力、低度外力、肌肉力量快速作用于骨骼，或潜在疾病或骨骼病理弱点。这些骨折大多数主要是由于骨骼受到异常和反复的应力。本病例研究探讨了一名14岁交叉训练运动员临床上明显的应力性骨折最终转变为明显肱骨骨折的损伤机制、临床表现和治疗方法。
