EXAMINATION: BONE DENSITOMETRY OF THE SPINE AND HIP DATE OF STUDY: HISTORY: FINDINGS (SPINE): The bone mineral density of L1-L4 was assessed by dual-energy x-ray absorptiometry. The average bone mineral density within this region is ------ gm/sq-cm. This is --- standard deviations ---- the mean of the average bone mineral density for age-and gender-matched subjects (the Z-score). It is --- standard deviations ---- the mean peak bone mineral density in young adults (the T-score). FINDINGS (FEMORAL NECK): The bone mineral density of the left femoral neck was assessed by dual-energy x-ray absorptiometry. The average bone mineral density within the femoral neck region is ------ gm/sq-cm. This is --- standard deviations ---- the mean of the average bone mineral density for age-and gender-matched subjects (the Z-score). It is --- standard deviations ---- the mean peak bone mineral density in young adults (the T-score). FINDINGS (TOTAL HIP): The bone mineral density of the left hip was assessed by dual-energy x-ray absorptiometry. The average bone mineral density within the total hip region is is ------ gm/sq-cm. This is --- standard deviations ---- the mean of the average bone mineral density for age-and gender-matched subjects (the Z-score). It is --- standard deviations ---- the mean peak bone mineral density in young adults (the T-score). SUMMARY OF CURRENT RESULTS: ----------------------------------------------------------------- Region Exam Date BMD T-Score Z-Score ----------------------------------------------------------------- AP Spine(L1-L4) Femoral Neck(Left) Total Hip(Left) OPINION: 1. The bone mineral density of the lumbar spine is ---- 2. The bone mineral density of the left femoral neck is ---- 3. The bone mineral density of the left total hip is ---- 4. Overall, the above findings are indicative of ---- by WHO criteria. General comments regarding interpretation of bone mineral density measurements: a) In children, premenopausal women and males under age 50 not at increased risk for fractures only Z-scores, not T-scores are used to indicate risk. A Z-score above -2.0 is defined as "within the expected range for age" and Z-score at or less than -2.0 is "below the expected range for age". A Z-score below the expected range for age in a patient with recent fractures and/or chronic corticosteroid treatment is consistent with a diagnosis of osteoporosis. b) In post menopausal women and males over 50, comparison of the measured bone mineral density with the average value in young normal subjects (the "T-score") has been found to be useful in assessing fracture risk. Fracture risk approximately doubles for each 1.0 standard deviation (SD) in individual's hip or spine bone mineral density is below the average value of young normal subjects. The World Health Organization (WHO) has defined T-scores of -1.0 to -2.5 as indicative of low bone mass (OSTEOPENIA), and T-scores of -2.5 or lower to be indicative of OSTEOPOROSIS, based on the site of lowest bone density. Note that there will be a change in reporting format and reference databases as patients move from the younger population (group a) to the older population (group b). The National Osteoporosis Foundation (www.nof.org) recommends adequate intake of calcium and vitamin D and regular weight-bearing exercise in all patients. In Caucasian postmenopausal women, the NOF recommends treatment with pharmacologic therapy if the T score is below -2.0. Treatment might also be considered if the T-score is between -1.5 and -2.0 in patients who are at higher risk (e.g., personal history of fracture as an adult, history of fragility fracture in a first-degree relative, low body weight (< about 127 lbs), current smoking, or use of oral corticosteroid therapy for more than 3 months). Guidelines for treatment of osteopenia alone in other racial groups, men, and premenopausal women are not available, but treatment should definitely be considered if the bone density reaches the level of osteoporosis (T-score below -2.5).