Background
In the United States intertrochanteric and pertrochanteric fractures
occur at a rate of more than 150,000 cases annually. Current standard of
care for these fractures includes fixation with either a cephalomedullary
nail (CMN) or a sliding hip screw (SHS). The purpose of this study was to
compare failure and medical complications of intertrochanteric femoral
fractures repaired by CMN or SHS.
Methods
This study is a retrospective cohort study that included 249 patients
with AO/OTA 31 A1.1–3, 31 A2.1–3 nonpathological fractures
of the femur, of which 137 received CMN and 112 received SHS. Analysis was
stratified by fracture type as stable (AO 31A1.1–2.1) or unstable
(AO 31A2.2–3).
Results
The tip-apex distance in stable fractures fixed with CMN was 17.3
± 5.9 compared to 26.2 ± 7.9 in the stable SHS group
(p<0.001) while it was 19.0 ± 5.3 in the unstable CMN group
compared to 24.0 ± 6.7 in the unstable SHS patients
(P = 0.004). Among patients with stable fracture
patterns there was no difference in collapse, complications, failure, or
mortality (all P > 0.05). Among patients with
unstable fractures CMN had significantly less collapse (P
< 0.001) and failure (P = 0.046) but no difference
in complications (P = 0.126) or mortality
(P = 0.586).
Conclusions
There were no significant differences in failure or complication
rates when comparing the CMN to the SHS in stable intertrochanteric
fractures. CMN demonstrated significantly reduced failure and collapse rates
in unstable intertrochanteric fractures when compared to SHS; however, this
study had a relatively small sample size of unstable fractures and all
results must be interpreted within this context.
The purpose of this study was to compare failure and complication rates associated with short cephalomedullary nail vs long cephalomedullary nail fixation for stable vs unstable intertrochanteric femur fractures. This study included 201 adult patients with nonpathologic intertrochanteric femur fractures without subtrochanteric extension (OTA 31-A1.1-3, 31-A2.1-3, 31-A3.1-3) who were treated with a short cephalomedullary nail (n=70) or a long cephalomedullary nail (n=131) and had at least 6 months of follow-up. Treatment groups were similar in terms of age, sex, and comorbidities. In the stable fracture group (N=81), there was no difference in total complications (adjusted
P
=.73), failure (adjusted
P
=.78), or mortality (adjusted
P
=.62) between short cephalomedullary nails and long cephalomedullary nails. Unstable fracture patterns were more likely to be treated with a long cephalomedullary nail than a short cephalomedullary nail (
P
=.01). In the unstable fracture group (N=120), there was no difference in total complications (adjusted
P
=.32) or failure (adjusted
P
=.31) between short cephalomedullary nails and long cephalomedullary nails. A cumulative mortality curve showed a trend toward increasing mortality in unstable fractures treated with short cephalomedullary nails. Traumatologists did not display a statistically significant preference between short cephalomedullary nails and long cephalomedullary nails when compared with nontraumatologists. [
Orthopedics
. 2019; 42(2):e202–e209.]
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