RT Journal A1 Øyen, Jannike A1 Brudvik, Christina A1 Gjesdal, Clara Gram A1 Tell, Grethe S. A1 Lie, Stein Atle A1 Hove, Leiv M. T1 Osteoporosis as a Risk Factor for Distal Radial FracturesA Case-Control Study JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2011 FD February 16 VO 93 IS 4 SP 348 OP 356 DO 10.2106/JBJS.J.00303 UL http://dx.doi.org/10.2106/JBJS.J.00303 AB Background:  Distal radial fractures occur earlier in life than hip and spinal fractures and may be the first sign of osteoporosis. The aims of this case-control study were to compare the prevalence of osteopenia and osteoporosis between female and male patients with low-energy distal radial fractures and matched controls and to investigate whether observed differences in bone mineral density between patients and controls could be explained by potential confounders.Methods:  Six hundred and sixty-four female and eighty-five male patients who sustained a distal radial fracture, and 554 female and fifty-four male controls, were included in the study. All distal radial fractures were radiographically confirmed. Bone mineral density was assessed with use of dual x-ray absorptiometry at the femoral neck, total hip (femoral neck, trochanter, and intertrochanteric area), and lumbar spine (L2-L4). A self-administered questionnaire provided information on health and lifestyle factors.Results:  The prevalence of osteoporosis was 34% in female patients and 10% in female controls. The corresponding values were 17% in male patients and 13% in male controls. In the age group of fifty to fifty-nine years, 18% of female patients and 5% of female controls had osteoporosis. In the age group of sixty to sixty-nine years, the corresponding values were 25% and 7%, respectively. In adjusted conditional logistic regression analyses, osteopenia and osteoporosis were significantly associated with distal radial fractures in women. Osteoporosis was significantly associated with distal radial fractures in men.Conclusions:  The prevalence of osteoporosis in patients with distal radial fractures is high compared with that in control subjects, and osteoporosis is a risk factor for distal radial fractures in both women and men. Thus, patients of both sexes with an age of fifty years or older who have a distal radial fracture should be evaluated with bone densitometry for the possible treatment of osteoporosis.Level of Evidence:  Prognostic Level III. See Instructions to Authors for a complete description of levels of evidence.