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Ultrasound-guided Reduction of Colle's fracture does not assist in Achieving Better Radiographic Indices - Results of
M P Bhatt1, S K Nema2, M Ayyan3
1Department of Orthopaedics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India.
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.
