Abstract
The ageing population is expected to increase the burden of osteoporosis on the health care system. Secondary causes of osteoporosis are found in a proportion of patients. There is much controversy regarding the best work-up for patients who have been diagnosed as having osteoporosis based on bone mineral density. It is difficult to decide where interventions should be targeted both from a patient’s perspective and for cost effectiveness. We evaluated the utility of a standard panel (full blood count, plasma viscosity, plasma protein, electrophoresis, urine Bence Jones protein, thyroid function test, bone profile, fasting lipids and liver function test) of biochemical investigations in 327 consecutive patients (287 females, 40 males) referred to the new patient osteoporosis clinic from April 1999 to March 2000. Patients were characterised after measurement of spinal/femoral neck bone mineral density after a dual energy X-ray absorptiometry (DEXA) scan. There were 88 patients with osteoporosis, 91 with osteopenia, 130 had normal bone mineral density and 20 who did not have a bone scan. No case of multiple myeloma was found in this cohort of patients. There was no difference in the mean plasma viscosity of patients with and without osteoporosis (P=0.182). There was no significant difference in the abnormal urine calcium/creatinine (Ca/Cr ratio) in patients with osteoporosis and those without osteoporosis (P=0.316). There was no significant difference in the prevalence of hypothyroidism (P=0.213) or thyrotoxicosis (P=0.138) in patients with and without osteoporosis. There was no strong correlation between cholesterol concentrations and osteoporosis (r=0.069). We found no utility in performing a myeloma screen. A small proportion of patients had abnormalities of calcium homeostasis or thyroid disease. We recommend that a screening biochemical evaluation should be restricted to calcium/bone profile and thyroid function tests in patients with a presumptive diagnosis of osteoporosis.
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Rajeswaran, C., Spencer, J., Barth, J.H. et al. Utility of biochemical screening in the context of evaluating patients with a presumptive diagnosis of osteoporosis. Clin Rheumatol 26, 362–365 (2007). https://doi.org/10.1007/s10067-006-0320-4
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DOI: https://doi.org/10.1007/s10067-006-0320-4