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Acta ortopédica mexicana
Print version ISSN 2306-4102
Abstract
AGUILAR-ALCALA, LD; ATRI-LEVY, J; TORRES-GOMEZ, A and OCHOA-OLVERA, L. Factor associated in the failure of the ostheosyntesis of transtrocantheric fractures. Acta ortop. mex [online]. 2017, vol.31, n.4, pp.189-195. ISSN 2306-4102.
Pertrochanteric fractures account approximately a half of the proximal femoral fractures. Incidence of these fractures is highest in women, age > 65 years and presents a mortality rate of 14 to 50%. Treatment goals include stable fixation, immediate mobilization and restore activities. Complications after treatment present in 17% and include: nonunion, cut out and varus displacement.
Objective:
Correlation between complications after surgical treatment and presence of instability, inadequate reduction, Tip Apex Index (TAI) > 25 mm, Tip Apex Index to calcar (TAIcal) > 20 mm and parker index.
Material and methods:
A case control study was conducted in patients with pertrochanteric fractures treated between January 2009 and December 2014, 91 patients were included and complications were measured up to 6 months after surgery.
Results:
27 patients were included in group 1, which were the ones who presented complications. Values of TAI measured in this group were 13.7 to 45 mm, and were significantly higher than group 2. Position of the blade/screw central in the lateral view and inferior in the AP view didn´t present complications.
Conclusions:
We found 27 patients with complications in the follow up (29%). Initial reduction and stability is determinant to success. We recommend the use of proximal femoral nail in all unstable fractures. It is confirmed that TAI > 25 mm as a predictor of failure.
Keywords : Pertrochanteric fractures; proximal femoral nail; DHS; tip apex index; cut out.
