Introduction: Ultrasound-guided manipulation and
reduction (M&R) of the distal radius fractures (DRF) is
believed to improve radiographic indices due to real-time
feedback of fracture alignment. The objective of this trial
was to compare volar tilt, radial inclination, and radial height
on radiographs between Ultrasound guided and conventional
(landmark-guided) M&R.
Materials and methods: A total of 79 distal radius
extraarticular fractures in adults were randomised to
Ultrasound guided and conventional (landmark-guided)
M&R. The radiograph parameters described above were
compared before and after M&R in both groups.
Results: Except for volar tilt (P=0.05 difference in
difference), there was no difference in both the groups on
radiograph parameters i.e. radial inclination and radial
height. We estimated a reduction in the incidence of malreduction by 49% (Risk ratio 0.51) and an absolute risk
reduction of 22% through USG-guided reduction. We
evaluated a number needed to treat 4 through USG-directed
M&R of DRF to prevent one unacceptable reduction. There
were 9 (22%) and 18 (46%) (P=0.70) unacceptable
reductions in USG-guided and landmark-guided M&R.
Conclusion: Adding USG guidance to conventional
landmark-based closed reduction methods is not beneficial
for the accuracy of fracture reduction in Colle’s fracture.
However, improved volar tilt in sonographic-directed M&R
needs further studies to determine the clinical significance.