A retrospective analysis of the InterTan nail and proximal femoral nail anti-rotation in the treatment of intertrochanteric fractures in elderly patients with osteoporosis: a minimum follow-up of 3 years

Table 4 Long-term follow-up outcomes

Variable	IT^a (n = 144)	PFNA^b (n = 139)	P value
Screw cut-out	3	11	0.024*^c
Femoral shaft fracture^#	3	12	0.014*^c
Delayed union	4	5	0.709^c
Malunion	2	0	0.498^d
Non-union	2	0	0.498^d
Varus collapse of the femoral head	1	8	0.020*^c
Lower limb shortening(> 1.5 cm)	2	2	0.972^c
Heterotopic ossification	3	1	0.326^c
Avascular necrosis of the femoral head	1	1	1.000^d
Postoperative thigh pain	5	13	0.043^*c
Lower extremity venous thrombosis	7	6	0.797^c
HHS at the last follow-up	72.2 ± 7.27	72.4 ± 7.20	0.842^e
Mortality	19	22	0.529^c

IT InterTAN nail, PFNA proximal femoral nail anti-rotation, HHS Harris Hip Score
*Statistically significant values
^#Displaced shaft fractures distal or around the tip of the main nail
^aSmith & Nephew, Memphis, Tennessee
^bSynthes, Solothurn, Switzerland
^cAnalyzed using the Pearson chi-squared test
^dAnalyzed using Fisher’s exact test
^eAnalyzed using independent samples t-test

ISSN: 1749-799X