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Additive effects of nutritional supplementation, together with bisphosphonates, on bone mineral density after hip fracture: a 12-month randomized controlled study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism.
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2014 (English)In: Clinical Interventions in Aging, ISSN 1178-1998, E-ISSN 1178-1998, Vol. 9, 1043-1050 p.Article in journal (Refereed) Published
Abstract [en]

Background: After a hip fracture, a catabolic state develops, with increased bone loss during the first year. The aim of this study was to evaluate the effects of postoperative treatment with calcium, vitamin D, and bisphosphonates (alone or together) with nutritional supplementation on total hip and total body bone mineral density (BMD). Methods: Seventy-nine patients (56 women), with a mean age of 79 years (range, 61-96 years) and with a recent hip fracture, who were ambulatory before fracture and without severe cognitive impairment, were included. Patients were randomized to treatment with bisphosphonates (risedronate 35 mg weekly) for 12 months (B; n=28), treatment with bisphosphonates along with nutritional supplementation (40 g protein, 600 kcal daily) for the first 6 months (BN; n=26), or to controls (C; n=25). All participants received calcium (1,000 mg) and vitamin D3 (800 IU) daily. Total hip and total body BMD were assessed with dual-energy X-ray absorptiometry at baseline, 6, and 12 months. Marker of bone resorption C-terminal telopeptide of collagen I and 25-hydroxy vitamin D were analyzed in serum. Results: Analysis of complete cases (70/79 at 6 months and 67/79 at 12 months) showed an increase in total hip BMD of 0.7% in the BN group, whereas the B and C groups lost 1.1% and 2.4% of BMD, respectively, between baseline and 6 months (P=0.071, between groups). There was no change in total body BMD between baseline and 12 months in the BN group, whereas the B group and C group both lost BMD, with C losing more than B (P=0.009). Intention-to-treat analysis was in concordance with the complete cases analyses. Conclusion: Protein-and energy-rich supplementation in addition to calcium, vitamin D, and bisphosphonate therapy had additive effects on total body BMD and total hip BMD among elderly hip fracture patients.

Place, publisher, year, edition, pages
2014. Vol. 9, 1043-1050 p.
Keyword [en]
hip fracture, nutritional supplementation, bisphosphonates, bone mineral density
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URN: urn:nbn:se:uu:diva-229536DOI: 10.2147/CIA.S63987ISI: 000338419300001OAI: diva2:737100
Available from: 2014-08-11 Created: 2014-08-11 Last updated: 2014-08-11Bibliographically approved

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