The impact of Bone Mineral Density (BMD) on the Recurrent Urolithiasis

Document Type: Original Article


1 Urology Research Center,Tehran University of Medical Sciences, Tehran, Iran

2 Gynecologist and Obstetrician, Mirza Koochak Khan Hospital, Tehran, Iran

3 Department of Biomadical Engineering, Amirkabir University of Technology, Tehran, Iran

4 Tehran University of Medical Sciences, Tehran, Iran



As it seems, patients with urinary stones have calcium metabolism deficiencies which lead to excessive calcium absorption from their bones. This phenomenon may expose these individuals to osteoporosis. This study was performed to evaluate the bone mineral density (BMD) in patients with urinary stones in Iran.
This study is an analytical case-control study performed in Sina hospital from March 2016 to January 2018. Twenty-four male patients between the ages of 30 and 50, who had recurrent urinary tract stones were enrolled in the study. The control group was selected from the same age and sex group with no history of urinary stone formation. The diet was similar in the two groups. The sampling method was non-random. Age and BMI were considered as confounding variables. After completing the questionnaire, BMD of the lumbar spine (L4 L2) and the femoral neck were measured. The data were analyzed using linear regression and t-test.
In both regions, BMD was significantly lower in patients compared to the control group (P