Unfallchirurgie
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In this paper late results of 65 proximal humeral fractures, operated upon between 1970 and 1980 are reported. Fractures were classified according to Neer in two-part-(28), three-part-(15), four-part-fractures (21) and fractures of the articular surface (1). In 34 cases internal fixation was performed by a T-plate. ⋯ Avascular necrosis of the humeral head was encountered in 4 cases of four-part-fractures and fracture dislocations, 3 of them fixed by T-plate and 1 by minimal internal fixation. No case of avascular necrosis of the humeral head was encountered in two- or three-part-fractures, fixed by T-plate. We can conclude, that cases, having a high risk for developing avascular necrosis of the humeral head, i.e. four-part-fractures and fracture dislocations, are better treated with minimal internal fixation avoiding the use of T-plate, for it was found to increase the already present damage.