

DOS Kongressen 2016 ·
225
Re-operation Rates after Femoral Neck Fractures
Treated with Cannulated Screws.
Mostafa Almadareb, Martin Lindberg-Larsen, Thomas Giver Jensen, Susanne
van der Mark
Orthopaedic department, Bispebjerg Hospital, BBH; Orthopaedic department,
BBH; Orthopaedic department, BBH; Orthopaedic department, BBH
Background:
The conventional treatment for femoral neck fractures is screw
fixation in patients ¡Ü 70 years regardless of fracture classification and in pa-
tients > 70 years with fractures classified as Garden 1-2.
Purpose / Aim of Study:
To determine the re-operation rate of patients with
femoral neck fractures treated with 3 cannulated screws. Furthermore, to in-
vestigate whether national guidelines were followed.
Materials and Methods:
A descriptive retrospective single center study on
patients with femoral neck fractures treated with cannulated screws from
Jan 1, 2014 to Dec 31, 2015. Fractures are classified according to Gardens
Classification (1-4). Information about re-operations are found from The Danish
National Patient Register.
Findings / Results:
148 patients were included. The re- operation rate of the
total cohort was 27.7 % (n=41). Causes of re- operations were caput necro-
sis (16), non-healing (7), pain (3), osteosynthesis failure (6), fall-related (4)
and removal of the screws (5). 76 patients were ¡Ü 70 years and 27 (35.5%)
were later re-operated compared to 14 (19.4%) re-operations in patients > 70
years (n=72). 10 patients (6.7%) were not treated according to national guide-
lines (>70 years and Garden 3-4) and were treated with cannulated screws due
to co-morbidities. 4 (40.0%) of these were later re-operated. The remaining
138 patients (93.3%) were treated according to the national guidelines and
37 (26.8%) were later re-operated. Final poster will present data on patient
characteristics.
Conclusions:
The re-operation rate after femoral neck fracture treated with
cannulated screws was 27.7 %. Higher re- operation rates were found in pa-
tients ¡Ü 70 years and in the few patients (6.7%) not treated according to na-
tional guidelines.
No conflicts of interest reported
176.