title: Lack of efficacy of low-intensity pulsed ultrasound on prevention of postmenopausal bone loss evaluated at the distal radius in older Chinese women.
abstract: A within-subject, randomized, and prospective intervention trial was done to evaluate the potential effect of low-intensity pulsed ultrasound on prevention of postmenopausal bone loss. Twenty healthy postmenopausal women between the ages of 51-81 years met the inclusion criteria. The treatment hand was randomly selected, and the contralateral site served as a control. Integral and trabecular bone mineral density were measured using highly precise multilayer peripheral quantitative computed tomography at the bilateral distal radius at baseline, 3 months after daily low-intensity pulsed ultrasound treatment, and 3 months after discontinuing treatment. Results showed that the rate of bone change (trabecular bone mineral density and integral bone mineral density) did not significantly differ between the site treated with low-intensity pulsed ultrasound and the contralateral control at either followup. Also, during the followup, bone mineral density did not change significantly in the contralateral control site. This was the first prospective and randomized study to show that low-intensity pulsed ultrasound at the current regime did not have significant effects on intact bone for prevention of postmenopausal bone loss in the distal radii of older Chinese women.
authors.affiliation: Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China. ksleung@cuhk.edu.hk
authors.forename: Kwok-Sui
authors.initials: KS
authors.lastname: Leung
authors.forename: Wing-Sze
authors.initials: WS
authors.lastname: Lee
authors.forename: Wing-Hoi
authors.initials: WH
authors.lastname: Cheung
authors.forename: Ling
authors.initials: L
authors.lastname: Qin
mesh_terms: D000368:Aged; D015519:Bone Density; D005260:Female; D006801:Humans; D015663:Osteoporosis, Postmenopausal / Q000000981:diagnostic imaging / Q000517:prevention & control*; D011446:Prospective Studies; D011859:Radiography; D011884:Radius / Q000000981:diagnostic imaging; D014464:Ultrasonic Therapy / Q000379:methods*