Mustafa ÖZBEK, Muhammed KIZILGÜL, Mustafa ÇALIŞKAN, Erman ÇAKAL, Selvihan BEYSEL

The effect of parathyroidectomy on bone mineral density in primary hyperparathyroidism

Background/aim: This study aimed to investigate the change in bone mineral density (BMD) before and 1 year after parathyroidectomyin patients with primary hyperparathyroidism (PHPT).Materials and methods: The clinical and biochemical parameters and DEXA screening of patients with symptomatic PHPT (n = 28)and asymptomatic PHPT (n = 63) were investigated before and 1 year after parathyroidectomy.Results: Patients with symptomatic PHPT had a higher prevalence of nephrolithiasis (18.2% vs. 4.6%, P = 0.032) when compared to theprevalence in patients with asymptomatic PHPT. The prevalence of osteoporosis in the lumbar spine (63.0% vs. 37.5%, P = 0.026) andfemoral neck (40.7% vs. 20.6%, P = 0.048) was higher in symptomatic PHPT when compared to the prevalence in asymptomatic PHPT.After parathyroidectomy, the decreases in the prevalence of osteoporosis in the lumbar spine (25.8% vs. 9.4%, P = 0.014), femoral neck(22.1% vs. 8.2%, P =0.009), and total hip (22.4% vs. 5.3%, P = 0.007) were higher in symptomatic PHPT compared to the asymptomaticPHPT group. A higher BMD gain (g/cm2) was seen in the lumbar spine (10.83% vs. 4.65%, P=0.016) and femoral neck (12.61% vs.4.37%, P=0.005) in symptomatic PHPT compared to the asymptomatic PHPT group.Conclusion: Parathyroidectomy provided more BMD gain in the lumbar spine and femoral neck in patients with symptomatic PHPTwhen compared to patients with asymptomatic PHPT 1 year after parathyroidectomy.

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