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DESCRIPTIVE STUDY OF OSTEOPOROTIC FRACTURES AND HIP FRACTURE RISK EVALUATION OF SUBJECTS WITH PAST MINOR FRACTURES.



Abstract

A descriptive study of osteoporotic fractures and the evaluation of the relative risk of hip fracture following a minor fracture were done on 2.5 million individuals from 1980 to 1997. People aged forty-five years old and older have a risk for hip fracture after a minor fracture of 2.3–17.3 time the risk of people without previous fracture. Given the availability of pharmaceuticals that decrease the fracture risk dramatically within the first 18 months of therapy, the average four to six years time between minor and hip fracture represents a perfect window of opportunity for preventive treatment.

Osteoporotic fractures, especially hip fractures, represent a major health problem in terms of morbidity, mortality and cost. Since the availability of new treatments for osteoporosis, a better understanding of the disease is needed to define the indications for treatment.

A descriptive study of osteoporotic fractures and the evaluation of the relative risk of hip fracture following a minor fracture were done on a population aged fortyfive years old and older from 1980 to 1997 (2.5 million individuals).

During the follow-up period, 220,120 fractures (hip, wrist, proximal humerus and ankle) were recorded. Wrist fractures were the most frequent (42.2%) followed by hip fractures (32.5%). Although the proportions of fracture sites were similar for both sexes, 75% of the fractures occurred in females. The mortality rate 1 year after a hip fracture is increased by 14–27% for men and 9–13% for women. Men and women aged fortyfive years old and older have a risk for hip fracture after a humerus or a wrist fracture of 2.3–17.3 time the risk of people without previous fracture. The average time between a wrist or humerus fracture and a hip fracture was four to six years.

Wrist and humerus fractures represent a major risk for future hip fracture. Given the availability of pharmaceuticals that decrease the risk of hip fracture dramatically within the first eighteen months of therapy, the interval between minor and hip fracture represents a perfect window of opportunity for preventive treatment to decrease the risk of future hip fracture.

Correspondence should be addressed to Cynthia Vezina, Communications Manager, COA, 4150-360 Ste. Catherine St. West, Westmount, QC H3Z 2Y5, Canada