Ultrasound and fragility fracture: is there a role?

Injury
Wing-Hoi CheungSimon Kwoon-Ho Chow

Abstract

Osteoporotic fracture is known to have impaired healing capacity and therefore takes longer time to heal, as compared with younger one. The mechanism of impaired osteoporotic fracture healing is multifactorial, where lower responsiveness to mechanical loading is generally believed to be one factor, yet not absolutely confirmed. In recent years, low intensity pulsed ultrasound (LIPUS) is demonstrated to have good efficacy in treating normal fracture healing, as proven by many randomized controlled trials, as well as in vitro and animal evidences. The effects of LIPUS on osteoporotic fracture healing was also validated in an animal study, which revealed that osteoporotic fractured bone of SD rats showed radiologically and biomechanically comparable responses to LIPUS as age-matched normal fracture healing, in terms of callus width, bridging rate, bone volume fraction, and stiffness etc. Gene expression profiling also confirmed that osteoporotic fractured bone responded to LIPUS very well by upregulating Col1 and BMP2 (osteogenesis) at early phase, VEGF (angiogenesis) at middle phase and RANKL (remodeling) at late phase. These confirm that osteoporotic bones respond well to LIPUS as good as normal bone. These findings may be assoc...Continue Reading

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Oct 17, 2017·Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine·Masahiro TsukadaKota Watanabe
Jun 27, 2019·Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine·Masahiro TsukadaKota Watanabe

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