Session 14: Trauma II
Fredag d. 26. oktober
09:00-10:30
Lokale: Helsinki/Oslo
Chairmen: Bjarke Viberg og Jeppe Barckmann
106. Hvad er effekten af operativ behandling overfor ikke-operativ behandling af isolerede forskudte olecranonfrakturer hos ældre patienter med lavt funktionsniveau?
Liv Vesterby, Michael Brix, Anne Kathrine Belling Sørensen
Ortopædkirurgisk afdeling, Slagelse Sygehus; Ortopædkirurgisk afdeling, Odense Universitetshospital; Ortopædkirurgisk afdeling, Herlev Hospital
Background: Olecranonfraktur er hyppig og udgør op mod 20% af
alle frakturer i den proksimale underarm.
Olecranonfrakturerne kan inddeles efter Mayos
klassifikation. Mayo type I behandles sædvanligvis
konservativt, mens Mayo type II og III, som
udgangspunkt behandles operativt.
De hyppigste anvendte operationsmetoder er
tensionband og skinneosteosyntese. Til trods for at
de nævnte operationsmetoder er anerkendte, også
til behandling af ældre patienter, er der i flere
opgørelser beskrevet høje komplikationsrater. Der
er tale om høj risiko for reoperation som følge af
gener fra osteosyntesematerialet, postoperative
infektioner og frakturskred.
Et nyligt publiceret RCT-stuide har søgt at vurdere
om konservativ behandling af Mayo type II, kan
være favorabel for udvalgte patienter.
Purpose / Aim of Study: Målet med denne KKR er at foretage en systematisk
gennemgang af foreliggende litteratur, med henblik
på at give en samlet anbefaling til behandling af
olecranonfrakturer, Mayo type II, for ældre med lavt
funktionsniveau.
Materials and Methods: Pubmed, Embase
Findings / Results: Der foreligger til dato kun et enkelt randomiseret
studie omhandlende emnet. Studiet blev stoppet før
tid på grund af en uacceptabel høj komplikationsrate
i den operativt behandlede gruppe. Der findes case
series og studier omhandlende resultater og
komplikationer ved behandling af olecranonfrakturer
for ældre, hvorfor det vurderes at der er
tilstrækkelig evidens til at komme med en anbefaling
vedrørende behandlingen.
Conclusions: Anvend kun operativ behandling af olecranonfraktur,
Mayo type II, hos ældre med lavt funktionsniveau
efter nøje overvejelse, da den gavnlige effekt er
usikker, og da der er dokumenterede
skadevirkninger, såsom høj risiko for svigt af
operationen med frakturskred, dyb infektion og
efterfølgende stort behov for fjernelse af
osteosyntesemateriale.
107. Dynamic hip screws vs. cannulated screws for femoral neck fractures. A study from the Danish Fractures Database collaborators
Siar Barat, Per Hviid Gundtoft, Lars Rotwitt, Bjarke Viberg
Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt
Background: Femoral neck fractures (FNF) are often treated
using cannulated screws (CS) or sliding hip screws
(SHS). A RCT have recently shown no difference
between these two types of internal fixation but there
are no large studies investigating the external
validity.
Purpose / Aim of Study: To estimate the risk of complications in patients
receiving SHS compared to CS in patients with FNF
Materials and Methods: This is a population based register study from
the Danish Fracture Database (DFDB). From
01012015 – 31122016 data was extracted on
FNF patients using the AO-classification and
treated with SHS or CS. Primary outcome was
major complication (re-osteosynthesis,
conversion to arthroplasty or girdlestone, and
deep infection) within 1 year of primary surgery.
Secondary outcome was minor complication in
terms of simple implant removal. In order to
ensure an acceptable completeness of
complications, data from the Danish National
Patient Registry (DNPR) will be extracted. Cox
proportional hazards were used to estimate and
compare relative risk (RR) for complications
between SHS and CS (includes 95% confidence
interval) and adjusted for age, sex, and ASA
score.
Findings / Results: A total of 10,418 FNF were identified in DFDB of
which 2,212 were CS and 1,276 SHS. The average
age was 73.5 years (72.9;74.1) and 95% were
ASA≤3 with no difference between the two groups.
There were 66% females in the CS group and 57%
in the SHS group (p<0.001).
CS had 4.2% major complications and SHS had
3.3% yielding an adjusted RR of 0.80 (0.55;1.15).
Concerning minor complications, 1.5% had CS
removed and 0.2% had SHS removed yielding a RR
of 0.11 (0.03;0.45).
Conclusions: There seems not be any difference in major
complications for SHS compared to CS in FNF
patients. However, the results will be updated with
the DNPR data before the congress and may
therefore show a different result
108. Increased risk of mortality after postoperative infection in hip fracture patients
Kaja E. Kjørholt, Daniel Prieto-Alhambra, Nickolaj R. Kristensen, Søren P. Johnsen , Alma B. Pedersen
Department of Clinical Epidemiology , Aarhus University Hospital; Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences (NDORMS), University of Oxford, United Kingdom; Department of Clinical Epidemiology , Aarhus University Hospital ; Center for Clinical Health Services Research, Department of Clinical Medicine, Aalborg University ; Department of Clinical Epidemiology , Aarhus University Hospital
Background: Postoperative infection is a common complication in
hip fracture patients and the risk appears to have
increased during the last decade. However, the
association between postoperative infection and
high mortality after hip fracture surgery remains
unclear.
Purpose / Aim of Study: To examine the association of any infection, as well
as specific common infections, with all-cause
mortality following hip fracture surgery.
Materials and Methods: Using Danish medical databases, we conducted a
population-based cohort study. We included 74,771
hip fracture patients >65 years old operated from
2005 to 2016. We included hospital-treated infection
as a time-dependent exposure, and calculated 30-
days mortality rate per 1000 person-years (PY). We
used time-dependent Cox Proportional Hazard
Regression to compute 30-days adjusted hazards
ratios (aHRs) with 95 % confidence interval (CI)
comparing the mortality of hip fracture patients with
and without infections.
Findings / Results: Within 30 days of surgery, 9592 (12.8%) patients
developed any hospital-treated infection. Among
these, 30-day mortality rate was 8.43 per 1000 PY
compared with 3.34 among patients without
infection (aHR=2.74, CI: 2.58-2.91). For patients
who developed pneumonia, aHR was 4.22 (CI: 3.94-
4.52), whereas the aHR was 8.75 (7.78-9.83) for
patients who developed sepsis. For patients who
sustained reoperation due to infection, aHR was
2.95 (CI: 1.88-4.64). The mortality increased
irrespective of patients’ age, sex, comorbidity and
year of surgery.
Conclusions: Infection within 30 days of hip fracture surgery is
associated with a substantially increased mortality
risk.
109. Trauma Team Training - a prospective evaluation of time to milestone events
Ann-Louise H. Kristiansen, Debra Freund, Jan Duedal Rölfing, Rikke Thorninger
Dept. of Orthopaedics, Regionshospitalet Randers; Dept. of Anaesthesiology, Regionshospitalet Randers; Corporate HR, MidtSim and Dept. of Clinical Medicine, Central Denmark Region and Aarhus University; Dept. of Orthopaedics, Regionshospitalet Randers
Background: In-situ trauma team training can help to identify
obstacles within the organization and to improve the
performance of teams and individuals through
training of non-technical and technical skills.
However, the development and implementation of
trauma team training can be a cumbersome and
overwhelming task.
Purpose / Aim of Study: Prospective evaluation of a ready-to-implement, off-
the-shelf trauma team training package with
predefined scenarios at a secondary hospital in
Denmark in terms of time to milestone events in
trauma management
Materials and Methods: We developed a trauma team training package with
predefined scenarios, action cards and guidelines
on how to plan and execute in-situ simulation in
order to improve trauma management at regional
hospitals. The trauma team training was
implemented at one regional hospital in Denmark on
six occasions of two hours duration dispersed from
January till September 2017. The mean trauma
processing times were recorded 3 months before
(n=24) and 3 months after the introduction period
(n=20). Processing times from arrival of the patient
until chest x-ray, trauma CT, and total time in the
trauma unit were prospectively evaluated.
Findings / Results: Mean total time in the trauma unit was reduced from
78 ±10 to 67 ±10 min (p>0.05).
Mean time from arrival until chest x-ray was reduced
from 9 ±1 to 6 ±1 min (p>0.05).
Mean time from arrival until trauma CT was 28 ±3
before and 29 ±3 min after training (p>0.05).
Furthermore, trauma team training helped to identify
missing and illogical placement of equipment at an
organizational level.
Conclusions: A trend towards faster processing times of trauma
was observed, which potentially can help to save
resources. Furthermore, the ready-to-implement, off-
the-shelf trauma team training proved to be valuable
to streamline the trauma management at an
organizational level.
110. The severity of pre-fracture basis mobility loss at the time of acute hospital discharge for hip fracture is associated with 30-day mortality - A one-year nationwide cohort study of 5,147 Danish patients
Morten Tange Kristensen, Buket Öztürk, Niels Dieter Rock, Annette Ingeman, Henrik Palm, Alma B Pedersen
Physical Medicine and Rehabilitation Research – Copenhagen (PMR-C), Departments of Physical Therapy and Orthopedic Surgery, Hvidovre University Hospital; Department of Clinical Epidemiology, Aarhus University Hospital; Department of Orthopedic Surgery O, Odense University Hospital; Department of Clinical Epidemiology, Aarhus University Hospital; Department of Orthopedic Surgery, Bispebjerg University Hospital; Department of Clinical Epidemiology, Aarhus University Hospital
Background: Early recovery of the pre-fracture basic
mobility status is considered an
important first step of rehabilitation
from hip fracture (HF). However, critics
say that achievement during
hospitalization is just a matter of
length of stay (LOS).
Purpose / Aim of Study: To examine if the severity of
pre-fracture basic mobility loss at
hospital discharge was associated with
30-day post-discharge mortality after a
first time HF.
Materials and Methods: Using the nationwide Danish
Multidisciplinary Hip Fracture Database
(DMHFD) from Jan. 2015 through Dec.
2015, we included 5,147 patients. The
Cumulated Ambulation Score (CAS) was
recorded at pre-fracture (questionnaire)
and objectively at discharge. The
severity of pre-fracture CAS-points lost
(from 1-6 points) at discharge was
entered into Cox regression analyses,
adjusted by sex, age, BMI, Charlson
Comorbidity Index, type of fracture,
residential status, and LOS.
Findings / Results: The mean LOS for the 60% (n=3,097) of
patients who had not regained their
pre-fracture CAS level at discharge was
9.5 days compared to 8.5 days for the
2,050 who did. In adjusted analyses, the
risk of 30-days mortality increased with
increasing loss of CAS points. Thus, the
risk of death (hazard ratio, 95%CI) was
1.3 (0.7; 2.2), 1.7 (0.99; 2.9), 2.6
(1.7; 3.8), 4.2 (2.6; 7.0), 5.1 (2.7;
9.7) and 12.3 (7.0; 21.5) times higher
for patients who respectively lost 1, 2,
3, 4, 5 and 6 CAS points, compared to no
loss.
Conclusions: In this large national HF registry
study, we found that the severity of
pre-fracture basic mobility loss upon
acute hospital discharge was strongly
associated with 30-day post-discharge
mortality in the adjusted analysis
including LOS. Further, the analysis
indicates that it's not only a matter of
the complete regain of the pre-fracture
CAS level since less CAS points lost the
more patients seem to survive.
111. Prospective cohort study for activity measurement in patients with proximal femur fractures - accelerometer signals correlate with functional independence and quality of life and can predict course of recovery.
Laureen Marsault, Hagen Schmal
Department of Orthopedics and Traumatology , Odense Universitetshospital; Department of Orthopedics and Traumatology , Odense Universitetshospital
Background: Physical activity in elderly patients suffering from
proximal femoral fractures is crucial for recovery.
However, the importance of objective activity
measurement is not yet clarified.
Purpose / Aim of Study: To evaluate the use of accelerometers in the
postoperative treatment course.
Materials and Methods: 54 patients undergoing operative treatment of
proximal femur fractures (81.3±7.5 years) were
included. 12 patients with fall but without fracture of
the lower extremities (80.8±9.5 years) served as a
control. An Axivity AX3 tracker continuously
measured activity during the hospital stay by
recording signal vector magnitudes. 2±1 and 8±3
days (time point [TP] 1 and 2) after the operation
functional independence and quality of life were
evaluated using Barthel-20 and EuroQol-5D,
respectively
Findings / Results: Physical activity (PA) increased in all patients with
time independent of the group. A multiple regression
analysis revealed that high Barthel-20 before
fracture, low age, high BMI and low C-reactive
protein levels were independent predictors for a high
PA (p<0.05). Accelerometer signals correlated
significantly with EuroQol-5D at TP1 and 2 (p<0.02)
and Barthel-20 at TP1 and 2 (p≤0.002).
Furthermore, PA at TP1 predicted PA, EuroQol-5D,
and Barthel-20 at TP2 (p<0.01). A multiple
regression, correcting for confounders,
demonstrated that PA in patients without a fracture
was not different from patients with an operatively
treated proximal femur fracture at any examined TP
Conclusions: Accelerometer signals reliably reflect postoperative
physical activity in elderlies. A high functional
independence and good nutrition status positively
influence recovery following a fall. A timely and
sufficient operation provided, there is no difference
between activity-characterizing parameters in the
recovery process between patients with and without
a fracture.
112. Incidence and influence of comorbidities on excess mortality in younger hip fracture patients in Denmark
Adam Omari, Jes Bruun Lauritzen, Christian Medom Madsen, Henrik Løvendahl Jørgensen, Fie Juhl Vojdeman
Department of Orthopedic Surgery, Bispebjerg Hospital; Department of Orthopedic Surgery, Bispebjerg Hospital; Department of Clinical Biochemistry, Herlev and Gentofte Hospital; Department of Clinical Biochemistry, Hvidovre Hospital; Department of Clinical Biochemistry, Bispebjerg Hospital
Background: Patients who experience a hip fracture present a
worldwide challenge to the healthcare system due to
their excess morbidity and mortality. The younger
patients have been largely overlooked as few and
relatively small studies exist.
Purpose / Aim of Study: This study assessed the incidence, mortality and the
effect of comorbidities among patients aged 18-65 in
a nation-wide population-based study.
Materials and Methods: Subjects were extracted from the National Patient
Registry from 1996 to 2012 with a 1-year follow-up
period. A total of 19,682 patients with primary
unilateral hip-fracture diagnosis at first admission
were included in this study. T-tests, Chi2 tests, and
cox proportional hazards models were used to
assess differences between groups and for survival
analysis.
Findings / Results: Among 19,682 patients, 17,722 (90.0%) were
grouped as middle-aged (40-65 years old) and
1,960 (10.0%) were grouped as young (18-40 years
old). The 1-year mortality rate was 13 % (n=2,259)
and 4 % (n=77) for the middle-aged and young
group, respectively. Diabetes, heart-, liver- or renal
disease were associated with increased 30-day and
1-year mortality in both age groups. Pulmonary
disease and cancer were linked to increased 30-
mortality in the middle-aged group only (p<0.0001).
Multivariate analysis showed age, sex, cancer,
diabetes, liver-, renal-, and pulmonary disease to be
linked with increased 30-day mortality in the middle-
aged group, as opposed to heart disease and
diabetes for the young group.
Conclusions: Young hip fracture patients experience, as older, an
increased post-fracture mortality rate. Comorbidities
such as heart-, chronic pulmonary-, renal-, and
peptic ulcer disease increases the mortality rate
more than 2 fold in these patients. This calls for
changes in the surveillance in the clinic to prevent
deaths in hip patients with comorbidity.
113. Minimal effect of implant position in osteosynthesis of a femoral neck fracture with parallel implants
Anne Marie Nyholm , Henrik Palm, Håkon Sandholdt, Anders Troelsen, Kirill Gromov
CORH - Ortopædkirurgisk afdeling, Hvidovre Hospital; Ortopædkirurgisk afdeling, Bispebjerg Hospital; CORH - Ortopædkirurgisk afdeling, Hvidovre Hospital; CORH - Ortopædkirurgisk afdeling, Hvidovre Hospital; CORH - Ortopædkirurgisk afdeling, Hvidovre Hospital
Background: Revision rate following osteosynthesis of a femoral
neck fracture (FNF) is high. Optimal position of the
implants is debated and may affect the revision rate.
Purpose / Aim of Study: To estimate the effect of the position of parallel
implants (PI) on risk of revision within 12 months
following osteosynthesis of a FNF.
Materials and Methods: 1206 consecutive surgeries for a primary FNF with
PI from December 2011 to November 2015 were
identified from the Danish Fracture Database. Data
included age, gender, surgical delay and ASA score.
Fracture displacement, posterior tilt, number of
implants, angulation of implants and posterior-,
calcar- and tip-cartilage-distance were measured on
pre- and postoperative x-rays. Data on vital status
and revisions was collected from the Civil
Registrational System. Data was evaluated by cox
regression analysis.
Findings / Results: Median age was 73.3 and 69% were female. 2
implants were used in 83% (997) of patients and 3 in
17 % (209). 13% (157) of patients underwent a
relevant revision within 1 year and 19% (228) died.
Increasing age, female gender, high ASA score and
displaced fracture were associated with increased
risk of reoperation. Surgical delay was associated
with increased risk of reoperation in displaced
fractures only. Insufficient reduction of the fracture
(HR 1.88), placing the implants with an angle to the
shaft below 126° (HR1.91) and perforating cartilage
with an implant (HR 3.07) significantly increased risk
of reoperation. We found no effect of posterior
distance, calcar distance, tip-cartilage distance or if
the implants were parallel.
Conclusions: Insufficient reduction, varus position of the implants
and perforating femoral head cartilage were the only
surgical factors influencing risk of revision. Sufficient
fracture reduction is perhaps more important than
focusing on an optimal osteosynthesis.
114. Tourniquet use in ankle fracture surgery. A study from the Danish Fractures Database collaborators
Bjarke Viberg, Per Hviid Gundtoft, Mette Rosenstand, Michael Brix
Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Kolding Hospital - part of Hospital Lillebaelt; Department of Orthopaedic Surgery and Traumatology, Odense University Hospital
Background: Tourniquet (TQ) is widely used in orthopaedic
surgery but there is known complications directly
related to its use. However, evidence concerning the
frequency of complications during fracture surgery
due TQ is sparse.
Purpose / Aim of Study: To assess the risk of TQ use in patients with surgical
treated ankle fractures.
Materials and Methods: This is a population based register study from
the Danish Fracture Database (DFDB). From
01012015 – 31122016 data was extracted on
patients with an ankle fracture using the AO-
classification. Patients with primary internal
fixation and +/- the use of TQ was compared.
Primary outcome was major complications
defined as re-osteosynthesis, amputation, deep
infection, wound healing problems, arthroplasty,
arthrodesis, thrombosis, and complex regional
pain syndrom. In order to ensure an acceptable
completeness of complications, data from the
Danish National Patient Registry (DNPR) will be
extracted. Multivariate regression analysis was
performed for relative risk (RR) adjusted for age
and sex. All results are reported with 95%
confidence interval.
Findings / Results: There were 4,215 eligible patients and final cohort
included 679 (16.5%) with TQ and 3,444 (83.5%)
without TQ. The average age was 53.4 years
(52.8;54.0), 61% were female and 99.5% had an
ASA score of 3 or less with no statistical difference
between the 2 groups. A total of 37 patients were re-
operated due to major complications, 4 (0.6%) in the
TQ group and 33 (1%) in the non-TQ group. This
yields an adjusted RR of 1.44 (0.51;4.07) of major
complications for non-TQ compared to TQ.
Conclusions: There seems not be any difference in major
complications for ankle fracture patients with or
without tourniquet during surgery. However,
complications are low and the results will be updated
with DNPR data before the congress and may show
a different result.
115. Decision-making, therapy and outcome in lateral compression fractures of the pelvis – analysis of a single center treatment
Hagen Schmal, Helge Eberbach, Peter C Strohm, Norbert P Südkamp, Jens Lauritsen, Jörn Zwingmann
Department of Orthopaedic Surgery, Odense University Hospital; Department of Orthopaedic Surgery, Freiburg University Hospital; Department of Orthopaedic Surgery, Bamberg Hospital; Department of Orthopaedic Surgery, Freiburg University Hospital; Department of Orthopaedic Surgery, Odense University Hospital; Department of Orthopaedic Surgery, Freiburg University Hospital
Background: Pelvic lateral compression fractures are
the most stable of the unstable fractures.
Purpose / Aim of Study: Therefore, decision making regarding
operative or non-operative therapy is
still a matter of debate.
Materials and Methods: Factors, influencing decision making for
therapy, were explored based on
prospectively collected register data of
a single trauma center. The analysis
included epidemiological records, and
injury characterizing parameters.
In-hospital mortality and complications
served as short-term outcome variables.
After matching for relevant confounders,
long-term results were compared between
operatively and non-operatively treated
patients, evaluating the Merle d’Aubigne
and the EQ5D-3L scores.
Findings / Results: Over an 11-year period (2004-14), 134
patients suffered from lateral
compression fractures out of 567 pelvic
fractures. After excluding complex
pelvic fractures, pubic symphysis
ruptures and pediatric fractures, 114
patients could be included in the
analysis. 61 patients were treated
conservatively (54%), 53 with an
operation (46%). The operated patients
were younger, had higher Injury Severity
Scores (ISS) and fracture dislocations
(p<0.001). The length of hospital stay
was shorter in the conservatively
treated group (p<0.02). Although the
types of complications were different,
the incidence was not. The mortality was
less in the operated group (1.9% vs.
6.6%), however, a logistic regression
analysis showed that only the ISS was an
independent risk factor, but not the
type of therapy. Merle d’Aubigne and
EQ5D-3L scores were not different in the
matched cohorts.
Conclusions: Decision-making for operative therapy
was favored in severely injured young
patients with high dislocation. However,
short- and long-term outcomes showed no
difference between operatively and
non-operatively treated patients.