Study of Low-Magnitude, High-Frequency Vibration Treatment on Osteoporotic Hip Fracture Healing
Osteoporotic hip fracture is common in elderly. As a result of aging population in Hong Kong, the total number of hip fracture cases is anticipated to increase substantially in the future, and therefore draw more resources in hospitals and healthcare cost. Osteoporotic hip fracture usually causes severe pain and takes long time (4-8months) to recover due to impaired healing capability in osteoporotic bones and limited mobility. Consequently, the patients will recover very slowly as a result of low physical activities to provide inadequate mechanical stimulation. It is also known that mechanical, vascular and biological factors are the keys for fracture healing.
Low-magnitude, high-frequency vibration (LMHFV) treatment is a biophysical intervention to provide whole-body vibration signals for mechanical stimulation, which has been proven to be good in enhancing bone and muscle performance, as well as blood circulation. Our previous study of LMHFV on femoral fracture in rats showed acceleration of fracture healing, resulted from enhanced callus formation and maturation. Application of LMHFV on osteoporotic fractures could shorten the period of complete callus bridging by 30%. Our clinical trial on normal elderly also demonstrated improved muscle performance with good compliance, which is also a critical factor for fracture healing.
In this study, the investigators therefore hypothesize that LMHFV can enhance hip fracture healing by enhancing fracture impaction, maintaining bone mineral density, enhancing muscle recovery, thus improving implant mechanical stability and rehabilitation in elderly patients. The hip fracture elderly patient will be recruited and randomized into control or treatment group. They will be assessed on the fracture healing at fixed time point. The findings of this study will provide very useful scientific data to support the application of LMHFV for hip fracture patients.The ultimate goal is to enhance the fracture healing and rehabilitation in elderly patients.
|Hip Fracture||Device: Low-magnitude high - frequency vibration treatment||Phase 2 Phase 3|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||Prospective Randomized Controlled Trial of the Efficacy of Low-Magnitude, High-Frequency Vibration Treatment on Osteoporotic Hip Fracture Healing|
- Fracture healing rate [ Time Frame: up to 6 months ]
- Balancing ability [ Time Frame: second month and sixth month post treatment ]
|Study Start Date:||November 2011|
|Study Completion Date:||May 2012|
|Primary Completion Date:||May 2012 (Final data collection date for primary outcome measure)|
|No Intervention: control|
Receive vibration therapy
Device: Low-magnitude high - frequency vibration treatment
stand on a vibration platform at 35Hz, 0.3g, 20mins/day and 7 days/week
Please refer to this study by its ClinicalTrials.gov identifier: NCT01293721
|Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong|
|Hong Kong, China|
|Principal Investigator:||Kwok Sui Leung, MD||Department of Orthopaedics and Traumatology, The Chineses University of Hong Kong|