HEMIARTHROPLASTY IN FOUR-PART DISPLACED FRACTURES

The hemiarthroplasty is the choice of election in the four-part humeral fracture when the glenoid surface is good. It is a relative easy procedure with a short operating time and can be revised to a total shoulder arthroplasty later if necessary. For hemiarthroplasty there are used unconstrained prostheses which are designed to closely replicate the normal anatomy. The general idea is to replace the avascular humeral head with a metal ball in condition of normal glenoid surface.