Treating AO/OTA 44B lateral malleolar fracture in patients over 50 years of age: periarticular locking plate versus non-locking plate

Table 3 Radiographic parameters comparison immediately and 1 year after surgery

	PLP (n = 34)			TP (n = 38)			p
	T0	T1	T1-T0 (ΔT)	T0	T1	T1-T0 (ΔT)
Distal fibula length (mm) [mean (SD)]	27.0 (3.4)	26.4 (3.0)	1.1 (1.1)	26.8 (3.1)	25.4 (3.0)	1.9 (1.3)	0.002^a,c**
Talus tilt angle ≥ 2° [n (%)]	2 (5.9%)	4 (11.8%)	2 (5.9%)	3 (7.9%)	13 (34.2%)	10 (26.3%)	0.027^b,c*
Fibula shortening (> 2 mm) [n (%)]	0	5 (14.7%)	5 (14.7%)	0	16 (42.1%)	16 (42.1%)	0.018^b,c*
Proximal screw loosening [n (%)]		0			2 (5.3%)		0.495^b,d
Distal screw loosening [n (%)]		0			14 (36.8%)		< 0.001^b,d***

T0 immediately after surgery, T1 1 year after surgery
^aMann-Whitney U test, ^bFisher’s exact test, ^cPLP_(ΔT) vs. TP_(ΔT), ^dPLP_(T1) vs. TP_(T1),^*p < 0.05, ^**p < 0.01, ^***p < 0.001

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