Fractura de húmero por estrés en lanzador de beisbol. Presentación de un caso / Humerus fracture by stress in baseball pitcher. Case presentation

RESUMEN Se presentó el caso de un adolescente que sufrió fractura por estrés del húmero izquierdo, mientras lanzaba en un partido de béisbol. Las fracturas de húmero por estrés son infrecuentes. Generalmente ocurre en los atletas que practican deportes de lanzamiento, es más frecuente en los lanzadores de béisbol amateurs de poca experiencia. Esta lesión es debida a la tracción muscular incoordinada y fuerza de torsión cuando la pelota es lanzada, asociada a la fatiga física. Puede ocurrir a nivel de los tercios medio y superior del húmero, entre las inserciones del deltoides y el pectoral mayor, así como en el tercio distal. Es común la presencia de dolor poco antes de producirse la fractura. Se enfatizó en la importancia de tener presente la posibilidad de presentación de este tipo de fractura en los atletas que practican deportes de lanzamientos, así como tener presente además las complicaciones que puedan presentarse a partir de este tipo de lesión. Se analizaron los datos recogidos en la historia clínica del paciente. Es importante pensar en este tipo de lesión, pues en ocasiones el cuadro clínico no es evidente. Se señaló además la necesidad de realizar un estricto seguimiento del paciente ante la posibilidad de lesión del nervio radial (AU).

ABSTRACT The authors present the case of a teenager who suffered left humerus fracture due to stress while he was pitching a baseball game. Humerus fractures caused by stress are infrequent. They commonly occur in athletes practicing throwing sports, being more frequent in amateur baseball pitchers with little experience. This lesion is due to uncoordinated muscular traction and torsion strength when the ball is thrown, all associated to physical fatigue. It can happen at the level of the medial and upper third of the humerus, between the insertions of deltoids and pectoral major muscles, and also in the distal third. The presence of pain is common a little before the fracture happens. The authors emphasize in the importance of taking into account the possibility of this kind of fracture occurring in athletes practicing throwing sports, and also the complications appearing after this kind of lesion. Data collected from the patient?s clinical record were analyzed. It is important to think in this kind of lesion because sometimes clinical characteristics are not evident. It was also pointed out the necessity of performing a strict follow-up of the patient given the possibility of radial nerve lesion (AU).

Pathological fracture in gaucher's disease

A three years and eight months old child of Gaucher's disease, with positive family history of the disease, who had sustained pathological fracture of the upper end of the left humerus 5 months after a splenectomy, is reported here

Hydatid Disease of bones and joints

Hydatid disease commonly affects the liver and lungs. The bones and joints are involved in 1-2% of total hydatid disease cases. Two cases of osseous hydatid disease seen recently are being reported. One male patient who had hydatid disease of the humerus, presented as pathological fracture and another female patient presented with tumour like mass in the sacral area. At operation extensive currettage and lavage was done in both the cases. The humerus was then fixed with K-nail. This patient developed recurrence which was subsequently operated with currettage, lavage, K-nail refixation and bone cement filling. On 5 to 15 months follow-up both patients are doing well without signs of recurrence and the fracture has united well