[Femoral neck fracture treated by head arthroplasty: factors of life prognosis. 477 cases (author's transl)].

477 cases of femoral head arthroplasty for fresh femoral neck fractures were reviewed to study the various factors modifying life prognosis during the first six months (age, associated disorders, type of prothesis, postoperative complications). Certain of these factors were found to affect prognosis unfavorably: bad general health, alcoholism, psychiatric or neoplasic disease, diabetes, and also, to a less degree, senility, neurologic and sensorial disturbances, cardiac deficiency. A rate table makes it possible to make a prognosis on the basis of these different factors.