Relationship between bone mineral density of the distal radius and ulna and fracture characteristics 1 ☆,
Section snippets
Subjects
For the control group, we used 1024 women (age range, 50–94 years; average, 70.4 years) who visited our hospitals during a period of 3 years and 4 months for a periodic medical checkup or for treatment of degenerative musculoskeletal diseases (mainly of the knee and spine). During this same period, a total of 88 women were treated for distal radius fracture in our hospitals. Two out of 88 cases were excluded from the study because they stopped attending our hospitals during the follow-up
Changing of BMD with age
BMD changed in the radius and ulna in the distal tenth and third parts with aging and showed a similar decreasing pattern in all age groups (Fig. 2). BMD decreased in this patient population from the early fifties onward, rapidly decreased until the mid sixties, and continued to decrease gradually into the age of 90.
Comparison of BMD in the nonfracture and fracture groups
The number of cases in the nonfracture and the fracture groups is shown in Table 1. The BMD in the distal third was higher in the ulna than in the radius, although the BMD in the
Discussion
We observed in this study that BMD in women decreases rapidly from the early fifties until mid sixties, and continues to decrease gradually into the age of 90 in both the distal tenth and third parts of the radius and ulna. This decrease pattern of BMD fits well with that of postmenopausal women; it is a rapid early bone loss that attenuates within 6 years after the onset of menopause and is followed by a further bone loss possibly related to the age-related increase of parathyroid hormone
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This work has been partially supported by CREST of the Japan Science and Technology (JST).
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No benefits in any form have been received or will be received by a commercial party related directly or indirectly to the subject of this article.