In our department we use an enhanced recovery
protocol for joint replacement of the lower limb. This incorporates the
use of intravenous tranexamic acid (IVTA; 15 mg/kg) at the induction
of anaesthesia. Recently there was a national shortage of IVTA for
18 weeks; during this period all patients received an oral preparation
of tranexamic acid (OTA; 25 mg/kg). This retrospective study compares
the safety (surgical and medical complications) and efficacy (reduction
of transfusion requirements) of OTA and IVTA. During the study period
a total of 2698 patients received IVTA and 302 received OTA. After
adjusting for a range of patient and surgical factors, the odds
ratio (OR) of receiving a blood transfusion was significantly higher
with IVTA than with OTA (OR 0.48 (95% confidence interval 0.26 to
0.89), p = 0.019), whereas the safety profile was similar, based
on length of stay, rate of readmission, return to theatre, deep
infection, stroke, gastrointestinal bleeding, myocardial infarction,
pneumonia, deep-vein thrombosis and pulmonary embolism. The financial
benefit of OTA is £2.04 for a 70 kg patient; this is amplified when
the cost saving associated with significantly fewer blood transfusions
is considered. Although the number of patients in the study is modest, this
work supports the use of OTA, and we recommend that a randomised
trial be undertaken to compare the different methods of administering
tranexamic acid. Cite this article:
The contemporary practice of orthopaedic surgery
requires an evidence-based approach to support all medical and surgical
interventions. In this essay, the author expresses a forthright,
personal and somewhat prejudiced appeal to retain the legitimacy
of clinical decision making in conditions that are rare, contain
multiple variables, have a solution that generally works or has
an unpredictable course. Cite this article:
To quantify and compare peri-acetabular bone mineral density
(BMD) between a monoblock acetabular component using a metal-on-metal
(MoM) bearing and a modular titanium shell with a polyethylene (PE)
insert. The secondary outcome was to measure patient-reported clinical
function. A total of 50 patients (25 per group) were randomised to MoM
or metal-on-polyethlene (MoP). There were 27 women (11 MoM) and
23 men (14 MoM) with a mean age of 61.6 years (47.7 to 73.2). Measurements
of peri-prosthetic acetabular and contralateral hip (covariate)
BMD were performed at baseline and at one and two years’ follow-up.
The Western Ontario and McMaster Universities osteoarthritis index
(WOMAC), University of California, Los Angeles (UCLA) activity score,
Harris hip score, and RAND-36 were also completed at these intervals.Objectives
Methods
The April 2013 Trauma Roundup360 looks at: ankle sprains; paediatric knee haemarthroses; evidence to support a belief; ‘Moonboot’ saves the day; pamphlets and outcomes; poor gait in pilons; lactate and surgical timing; and marginal results with marginal impaction.
The August 2014 Research Roundup360 looks at: Antibiotic loaded ceramic of use in osteomyelitis; fibronectin implicated in cartilage degeneration; Zinc Chloride accelerates fracture healing in rats; advertisements and false claims; Net Promoter Score: substance or rhetoric?; aspirin for venous thromboembolism prophylaxis and dissection, stress and the soul.
The February 2013 Shoulder &
Elbow Roundup360 looks at: whether we should replace fractured shoulders; the limited evidence for shoulder fractures; cuffs and early physio; matrix proteins and cuff tears; long-term SLAP tear outcomes; suture anchors; recurrent Bankart repairs; and acromial morphology and calcific tendonitis.
Trauma and orthopaedics is the largest of the
surgical specialties and yet attracts a disproportionately small
fraction of available national and international funding for health
research. With the burden of musculoskeletal disease increasing,
high-quality research is required to improve the evidence base for
orthopaedic practice. Using the current research landscape in the
United Kingdom as an example, but also addressing the international
perspective, we highlight the issues surrounding poor levels of
research funding in trauma and orthopaedics and indicate avenues
for improving the impact and success of surgical musculoskeletal
research. Cite this article:
Our aim was to assess the use of intra-operative fluoroscopy
in the assessment of the position of the tibial tunnel during reconstruction
of the anterior cruciate ligament (ACL). Between January and June 2009 a total of 31 arthroscopic hamstring
ACL reconstructions were performed. Intra-operative fluoroscopy
was introduced (when available) to verify the position of the guidewire
before tunnel reaming. It was only available for use in 20 cases,
due to other demands on the radiology department. The tourniquet
times were compared between the two groups and all cases where radiological
images lead to re-positioning of the guide wire were recorded. The
secondary outcome involved assessing the tibial interference screw
position measured on post-operative radiographs and comparing with
the known tunnel position as shown on intra-operative fluoroscopic
images.Objectives
Methods
The December 2012 Trauma Roundup360 looks at: whether tranexamic acid stops bleeding in trauma across the board; antibiotic beads and VAC; whether anaesthetic determines the outcome in surgery for distal radial fractures; high complications in surgery on bisphosphonate-hardened bone; better outcomes but more dislocations in femoral neck fractures; the mythical hip fracture; plate augmentation in nonunion surgery; and SIGN intramedullary nailing and infections.
The October 2012 Shoulder &
Elbow Roundup360 looks at: fast-absorbing suture anchors for use in shoulder labral tears; double-row rotator cuff repair; degenerate massive rotator cuff tears addressed with partial repair; open and arthroscopic stabilisation of Bankart lesions; predicting the risk of revision humeral head replacement; arthroscopic treatment for frozen shoulder; and long-term follow-up of the Bristow-Latarjet procedure.
Plasma levels of cobalt and chromium ions and
Metal Artefact Reduction Sequence (MARS)-MRI scans were performed
on patients with 209 consecutive, unilateral, symptomatic metal-on-metal
(MoM) hip arthroplasties. There was wide variation in plasma cobalt
and chromium levels, and MARS-MRI scans were positive for adverse reaction
to metal debris (ARMD) in 84 hips (40%). There was a significant
difference in the median plasma cobalt and chromium levels between
those with positive and negative MARS-MRI scans (p <
0.001).
Compared with MARS-MRI as the potential reference standard for the
diagnosis of ARMD, the sensitivity of metal ion analysis for cobalt
or chromium with a cut-off of >
7 µg/l was 57%. The specificity was
65%, positive predictive value was 52% and the negative predictive
value was 69% in symptomatic patients. A lowered threshold of >
3.5 µg/l for cobalt and chromium ion levels improved the sensitivity
and negative predictive value to 86% and 74% but at the expense
of specificity (27%) and positive predictive value (44%). Metal ion analysis is not recommended as a sole indirect screening
test in the surveillance of symptomatic patients with a MoM arthroplasty.
The investigating clinicians should have a low threshold for obtaining
cross-sectional imaging in these patients, even in the presence
of low plasma metal ion levels.
The surgical community is plagued with a reputation
for both failing to engage and to deliver on clinical research.
This is in part due to the absence of a strong research culture, however
it is also due to a multitude of barriers encountered in clinical
research; particularly those involving surgical interventions. ‘Trauma’
amplifies these barriers, owing to the unplanned nature of care,
unpredictable work patterns, the emergent nature of treatment and
complexities in the consent process. This review discusses the barriers
to clinical research in surgery, with a particular emphasis on trauma.
It considers how barriers may be overcome, with the aim to facilitate
future successful clinical research. Cite this article:
We examined the risk of thrombotic and major
bleeding events in patients undergoing total hip and knee replacement
(THR and TKR) treated with thromboprophylaxis, using nationwide
population-based databases. We identified 83 756 primary procedures
performed between 1997 and 2011. The outcomes were symptomatic venous thromboembolism
(VTE), myocardial infarction (MI), stroke, death and major bleeding
requiring hospitalisation within 90 days of surgery. A total of 1114 (1.3%) and 483 (0.6%) patients experienced VTE
and bleeding, respectively. The annual risk of VTE varied between
0.9% and 1.6%, and of bleeding between 0.4% and 0.8%. The risk of
VTE and bleeding was unchanged over a 15-year period. A total of
0.7% of patients died within 90 days, with a decrease from 1% in
1997 to 0.6% in 2011 (p <
0.001). A high level of comorbidity
and general anaesthesia were strong risk factors for both VTE and
bleeding, with no difference between THR and TKR patients. The risk
of both MI and stroke was 0.5%, which remained unchanged during
the study period. In this cohort study of patients undergoing THR and TKR patients
in routine clinical practice, approximately 3% experienced VTE,
MI, stroke or bleeding. These risks did not decline during the 15-year
study period, but the risk of dying fell substantially. Cite this article:
The peer review process for the evaluation of
manuscripts for publication needs to be better understood by the
orthopaedic community. Improving the degree of transparency surrounding
the review process and educating orthopaedic surgeons on how to
improve their manuscripts for submission will help improve both
the review procedure and resultant feedback, with an increase in
the quality of the subsequent publications. This article seeks to clarify
the peer review process and suggest simple ways in which the quality
of submissions can be improved to maximise publication success. Cite this article:
There have been many advances in the resuscitation
and early management of patients with severe injuries during the
last decade. These have come about as a result of the reorganisation
of civilian trauma services in countries such as Germany, Australia
and the United States, where the development of trauma systems has
allowed a concentration of expertise and research. The continuing
conflicts in the Middle East have also generated a significant increase
in expertise in the management of severe injuries, and soldiers
now survive injuries that would have been fatal in previous wars.
This military experience is being translated into civilian practice. The aim of this paper is to give orthopaedic surgeons a practical,
evidence-based guide to the current management of patients with
severe, multiple injuries. It must be emphasised that this depends
upon the expertise, experience and facilities available within the
local health-care system, and that the proposed guidelines will
inevitably have to be adapted to suit the local resources.