For fractures, pulsed ultrasound with low intensity for 20 minutes is claimed to increase healing of which types?

For fractures, pulsed ultrasound with low intensity for 20 minutes is claimed to increase healing of which types?

• A. Acute or nonunion fractures
• B. Simple hairline fractures only
• C. Fractures in children only
• D. Stress fractures only

Answer: (A)

Low-intensity pulsed ultrasound stimulates fracture healing by delivering mechanical energy to the fracture site, which enhances cellular signaling, promotes osteoblast activity, increases callus formation, and improves blood flow. This makes it useful not only for acute fractures but especially for fractures that are slow to heal or have already become nonunions. Because acute fractures can heal more quickly with standard care, the ultrasound is most impactful in those at risk for delayed healing or in established nonunions, aiding the healing process over time. Hairline fractures typically heal with conventional care alone, and this modality isn’t limited to children or solely used for stress fractures. Therefore, the best fit is that this approach increases healing in acute or nonunion fractures.

Low-intensity pulsed ultrasound stimulates fracture healing by delivering mechanical energy to the fracture site, which enhances cellular signaling, promotes osteoblast activity, increases callus formation, and improves blood flow. This makes it useful not only for acute fractures but especially for fractures that are slow to heal or have already become nonunions. Because acute fractures can heal more quickly with standard care, the ultrasound is most impactful in those at risk for delayed healing or in established nonunions, aiding the healing process over time. Hairline fractures typically heal with conventional care alone, and this modality isn’t limited to children or solely used for stress fractures. Therefore, the best fit is that this approach increases healing in acute or nonunion fractures.