Change in Calcaneal Bone Strength in Long-Term Care Residents Treated With Low-Intensity Pulsed Ultrasound

Area of Science:

• Gerontology
• Biomedical Engineering
• Orthopedics

Background:

• Osteoporosis is a significant health concern in elderly populations, increasing fracture risk.
• Low-intensity pulsed ultrasound (LIPUS) is a non-invasive therapeutic modality explored for bone healing and density improvement.
• Effective non-pharmacological interventions are needed to manage osteoporosis in long-term care facilities.

Purpose of the Study:

• To evaluate the efficacy of low-intensity pulsed ultrasound (LIPUS) in enhancing bone strength and density in elderly individuals with osteoporosis.
• To assess the impact of daily LIPUS treatment on heel bone mineral density in a geriatric population.

Main Methods:

• A randomized controlled trial was conducted involving elderly residents with osteoporosis in a long-term care facility.
• Participants received daily 2-minute LIPUS treatment (100 KHz) applied to one randomly selected heel.
• Calcaneal quantitative ultrasound was used to measure bone mineral density (Speed of Sound - SOS) before and after the intervention period.

Main Results:

• Nineteen elderly residents (average age 86.9 years) completed the 8-month study.
• Both treated and non-treated heels showed minor increases in Speed of Sound (SOS) over time, with no significant differences between them.
• The average SOS increased from baseline values around 1438 m/s to approximately 1452 m/s after 8 months in both groups.

Conclusions:

• Daily 2-minute LIPUS treatment of the heel bone demonstrated no significant effect on increasing bone density in osteoporotic elderly residents.
• The findings suggest that current LIPUS protocols may not be sufficient for improving bone density in this demographic.
• Future research should investigate optimized LIPUS parameters (duration, frequency, intensity) for elderly osteoporosis management, potentially reducing reliance on oral medications.