We study the results obtained after acute treatment of a group of 32 patients diagnosed of four-fragment fracture of the proximal humerus in whom a Neer I™ hemiarthroplasty was used. The patients were assessed with clinic and radiological parameters,  and for the evaluation of the results Neer criteria were used. The global results obtained were 69% of good and fair and 31% of bab results. The tuberosities attachment
concentrate the great complication Índex, that together with other complications acconist for 18% of the cases. The success of the attachment had a positive correlation with functional results (p = 0.0019). A meticulous technique joined with a good rehabilitation program are pointed as essential for being successful.

We study the results obtained after acute treatment of a group of 32 patients diagnosed of four-fragment fracture of the proximal humerus in whom a Neer I™ hemiarthroplasty was used. The patients were assessed with clinic and radiological parameters,  and for the evaluation of the results Neer criteria were used. The global results obtained were 69% of good and fair and 31% of bab results. The tuberosities attachment
concentrate the great complication Índex, that together with other complications acconist for 18% of the cases. The success of the attachment had a positive correlation with functional results (p = 0.0019). A meticulous technique joined with a good rehabilitation program are pointed as essential for being successful.