Radiographic Outcomes of Percutaneous Pinning for Displaced Extra-Articular Fractures of the Distal Radius: A Time Course Study

Table 2

Group comparison of radiographic parameters before/after fracture reduction.

Variables	Group 1	Group 2	𝑃 values^†
	(𝑛=25)	(𝑛=60)
Pre-op (mean, SD)
RH^a (mm)	9.63 (2.84)	8.76 (2.31)	0.143
RI^b (degree)	20.00 (5.37)	18.63 (4.43)	0.228
RT^c (degree)	−17.64 (12.81)	−19.01 (9.81)	0.757
UV^d (mm)	3.25 (3.04)	3.74 (2.24)	0.617
Post-op (mean, SD)
RH (mm)	11.82 (2.32)	12.13 (1.80)	0.510
RI (degree)	23.63 (4.05)	24.36 (2.60)	0.323
RT (degree)	2.06 (5.78)	3.78 (4.35)	0.136
UV (mm)	1.36 (2.70)	1.37 (1.65)	0.996
Δ^e Post-pre-op (mean, SD)
RH (mm)	2.20 (1.36)	3.38 (2.06)	0.010*
RI (degree)	3.64 (2.59)	5.73 (3.86)	0.015*
RT (degree)	19.70 (11.07)	22.80 (10.56)	0.229
UV (mm)	−2.07 (2.55)	−2.37 (1.75)	0.536

†Wilcoxon rank sum test, unless otherwise stated.
*The difference is significant (𝑃<0.05).
^aRH: radial height; ^bRI: radial inclination; ^cRT: radial tilt; ^dUV: ulnar variance; ^eΔ𝑌₂−𝑌₁: change of 𝑌.