From: Can low-intensity pulsed ultrasound (LIPUS) accelerate bone healing after intramedullary screw fixation for proximal fifth metatarsal stress fractures? A retrospective study
Non-LIPUS treatment group
LIPUS treatment group
P value
Type of Acutrak screw (4/5 / Plus)
19/25
24/33
1.00
Screw length (mm)
47.2 ± 4.3
47.7 ± 3.5
0.57
Ratio of the screw length to the fifth metatarsal length (%)
59.7 ± 4.3
60.8 ± 4.4
0.17