We are currently facing an epidemic of periprosthetic
fractures around the hip. They may occur either during surgery or
post-operatively. Although the acetabulum may be involved, the femur
is most commonly affected. We are being presented with new, difficult
fracture patterns around cemented and cementless implants, and we
face the challenge of an elderly population who may have grossly
deficient bone and may struggle to rehabilitate after such injuries.
The correct surgical management of these fractures is challenging.
This article will review the current choices of implants and techniques
available to deal with periprosthetic fractures of the femur. Cite this article:
In 1994 a cerebral palsy (CP) register and healthcare
programme was established in southern Sweden with the primary aim
of preventing dislocation of the hip in these children. The results from the first ten years were published in 2005 and
showed a decrease in the incidence of dislocation of the hip, from
8% in a historical control group of 103 children born between 1990
and 1991 to 0.5% in a group of 258 children born between 1992 and
1997. These two cohorts have now been re-evaluated and an additional
group of 431 children born between 1998 and 2007 has been added. By 1 January 2014, nine children in the control group, two in
the first study group and none in the second study group had developed
a dislocated hip (p <
0.001). The two children in the first study
group who developed a dislocated hip were too unwell to undergo
preventive surgery. Every child with a dislocated hip reported severe pain,
at least periodically, and four underwent salvage surgery. Of the
689 children in the study groups, 91 (13%) underwent preventive
surgery. A population-based hip surveillance programme enables the early
identification and preventive treatment, which can result in a significantly
lower incidence of dislocation of the hip in children with CP. Cite this article:
The aim of this study was to determine whether
an osteoplasty of the femoral neck performed at the same time as an
intertrochanteric Imhäuser osteotomy led to an improved functional
outcome or increased morbidity. A total of 20 hips in 19 patients
(12 left, 8 right, 13 male, 6 female), who underwent an Imhäuser
intertrochanteric osteotomy following a slipped capital femoral
epiphysis were assessed over an eight-year period. A total of 13
hips in 13 patients had an osteoplasty of the femoral neck at the
same time. The remaining six patients (seven hips) had intertrochanteric
osteotomy alone. The mean age was 15.3 years (13 to 20) with a mean
follow-up of 57.8 months (15 to 117); 19 of the slips were severe
(Southwick grade III) and one was moderate (grade II), with a mean
slip angle of 65.3° (50° to 80°); 17 of the slips were stable and
three unstable at initial presentation. The mean Non-Arthritic Hip Scores
(NAHS) in patients who underwent osteoplasty was 91.7 (76.3 to 100)
and the mean NAHS in patients who did not undergo osteoplasty was
76.6 (41.3 to 100) (p = 0.056). Two patients required a subsequent
arthroplasty and neither of these patients had an osteoplasty. No
hips developed osteonecrosis or chondrolysis, and there was no increase
in complications related to the osteoplasty. We recommend that for
patients with a slipped upper femoral epiphysis undergoing an intertrochanteric
osteotomy, the addition of an osteoplasty of the femoral neck should
be considered. Cite this article:
Periprosthetic fractures are an increasingly
common complication following joint replacement. The principles
which underpin their evaluation and treatment are common across
the musculoskeletal system. The Unified Classification System proposes
a rational approach to treatment, regardless of the bone that is
broken or the joint involved. Cite this article:
In this study, we aimed to determine whether designation as a
major trauma centre (MTC) affects the quality of care for patients
with a fracture of the hip. All patients in the United Kingdom National Hip Fracture Database,
between April 2010 and December 2013, were included. The indicators
of quality that were recorded included the time to arrival on an
orthopaedic ward, to review by a geriatrician, and to operation.
The clinical outcomes were the development of a pressure sore, discharge
home, length of stay, in-hospital mortality, and re-operation within
30 days. Aims
Patients and Methods
The optimal management of intracapsular fractures of the femoral
neck in independently mobile patients remains open to debate. Successful
fixation obviates the limitations of arthroplasty for this group
of patients. However, with fixation failure rates as high as 30%,
the outcome of revision surgery to salvage total hip arthroplasty
(THA) must be considered. We carried out a systematic review to
compare the outcomes of salvage THA and primary THA for intracapsular
fractures of the femoral neck. We performed a Preferred Reporting Items for Systematic Reviews
and Meta-Analysis (PRISMA) compliant systematic review, using the
PubMed, EMBASE and Cochrane libraries databases. A meta-analysis
was performed where possible, and a narrative synthesis when a meta-analysis
was not possible.Aims
Patients and Methods
We conducted a case-control study to examine
the merit of silver-coated tumour prostheses. We reviewed 85 patients
with Agluna-treated (silver-coated) tumour implants treated between
2006 and 2011 and matched them with 85 control patients treated
between 2001 and 2011 with identical, but uncoated, tumour prostheses. In all, 106 men and 64 women with a mean age of 42.2 years (18.4
to 90.4) were included in the study. There were 50 primary reconstructions
(29.4%); 79 one-stage revisions (46.5%) and 41 two-stage revisions
for infection (24.1%). The overall post-operative infection rate of the silver-coated
group was 11.8% compared with 22.4% for the control group (p = 0.033,
chi-square test). A total of seven of the ten infected prostheses
in the silver-coated group were treated successfully with debridement,
antibiotics, and implant retention compared with only six of the
19 patients (31.6%) in the control group (p = 0.048, chi-square
test). Three patients in the silver-coated group (3.5%) and 13 controls
(15.3%) had chronic periprosthetic infection (p = 0.009, chi-square
test). The overall success rates in controlling infection by two-stage
revision in the silver-coated group was 85% (17/20) compared with
57.1% (12/21) in the control group (p = 0.05, chi-square test).
The Agluna-treated endoprostheses were associated with a lower rate
of early periprosthetic infection. These silver-treated implants
were particularly useful in two-stage revisions for infection and
in those patients with incidental positive cultures at the time
of implantation of the prosthesis. Debridement with antibiotic treatment and retention of the implant
appeared to be more successful with silver-coated implants. Cite this article:
Given the increasing number of total hip arthroplasty
procedures being performed annually, it is imperative that orthopaedic
surgeons understand factors responsible for instability. In order
to treat this potentially complex problem, we recommend correctly
classifying the type of instability present based on component position, abductor
function, impingement, and polyethylene wear. Correct classification
allows the treating surgeon to choose the appropriate revision option
that ultimately will allow for the best potential outcome. Cite this article:
Pathological fractures in children can occur
as a result of a variety of conditions, ranging from metabolic diseases and
infection to tumours. Fractures through benign and malignant bone
tumours should be recognised and managed appropriately by the treating
orthopaedic surgeon. The most common benign bone tumours that cause pathological
fractures in children are unicameral bone cysts, aneurysmal bone
cysts, non-ossifying fibromas and fibrous dysplasia. Although pathological
fractures through a primary bone malignancy are rare, these should
be recognised quickly in order to achieve better outcomes. A thorough
history, physical examination and review of plain radiographs are
crucial to determine the cause and guide treatment. In most benign
cases the fracture will heal and the lesion can be addressed at
the time of the fracture, or after the fracture is healed. A step-wise
and multidisciplinary approach is necessary in caring for paediatric
patients with malignancies. Pathological fractures do not have to
be treated by amputation; these fractures can heal and limb salvage
can be performed when indicated.
The aims of this study were to report functional
outcomes of salvage procedures for patients with cerebral palsy (CP)
who have chronic dislocation of the hip using validated scoring
systems, and to compare the results of three surgical techniques. We reviewed 37 patients retrospectively. The mean age at the
time of surgery was 12.2 years (8 to 22) and the mean follow-up
was 56 months (24 to 114). Patients were divided into three groups:
14 who underwent proximal femoral resection arthroplasty (PFRA group
1), ten who underwent subtrochanteric valgus osteotomy (SVO group 2),
and 13 who underwent subtrochanteric valgus osteotomy with resection
of the femoral head (SVO with FHR group 3). All patients were evaluated
using the Caregiver Priorities and Child Health Index of Life with
Disabilities (CPCHILD) and the Pediatric Quality of Life Inventory
(PedsQL). Significant improvements occurred in most CPCHILD and PedsQL
subsection scores following surgery in all patients, without significant
differences between the groups. There were 12 post-operative complications.
Less severe complications were seen in group 1 than in groups 2
and 3. Salvage surgery appears to provide pain relief in patients with
CP who have painful chronic dislocation of the hip. The three salvage
procedures produced similar results, however, we recommend the use
of PFRA as the complications are less severe. Take home message: Salvage surgery can be of benefit to patients
with CP with chronic painful hip dislocation, but should be limited
to selected patients considering complications. Cite this article:
The aim of this study was to evaluate the prognostic
and therapeutic factors which influence the oncological outcome
of parosteal osteosarcoma. A total of 80 patients with a primary parosteal osteosarcoma
were included in this retrospective study. There were 51 females
and 29 males with a mean age of 29.9 years (11 to 78). The mean follow-up was 11.2 years (1 to 40). Overall survival
was 91.8% at five years and 87.8% at ten years. Local recurrence
occurred in 14 (17.5%) patients and was associated with intralesional
surgery and a large volume of tumour. On histological examination,
80% of the local recurrences were dedifferentiated high-grade tumours.
A total of 12 (14.8%) patients developed pulmonary metastases, of
whom half had either a dedifferentiated tumour or a local recurrence.
Female gender and young age were good prognostic factors. Local
recurrence was a poor prognostic factor for survival. Medullary
involvement or the use of chemotherapy had no impact on survival. The main goal in treating a parosteal osteosarcoma must be to
achieve a wide surgical margin, as inadequate margins are associated
with local recurrence. Local recurrence has a significant negative
effect on survival, as 80% of the local recurrences are high-grade
dedifferentiated tumours, and half of these patients develop metastases. The role of chemotherapy in the treatment of parosteal osteosarcoma
is not as obvious as it is in the treatment of conventional osteosarcoma.
The mainstay of treatment is wide local excision. Cite this article:
The purpose of this paper is to discuss the risk
factors, prevention strategies, classification, and treatment of
intra-operative femur fractures sustained during primary and revision
total hip arthroplasty.
The primary purpose of this study of metal-on-metal
(MoM) hip resurfacing was to compare the effect of using a cementless
or cemented femoral component on the subsequent bone mineral density
(BMD) of the femoral neck. This was a single-centre, prospective, double-blinded control
trial which randomised 120 patients (105 men and 15 women) with
a mean age of 49.4 years (21 to 68) to receive either a cemented
or cementless femoral component. Follow-up was to two years. Outcome
measures included total and six-point region-of-interest BMD of
the femoral neck, radiological measurements of acetabular inclination,
neck-shaft and stem-shaft angles, and functional outcome scores
including the Harris hip score, the Western Ontario and McMaster
Universities Osteoarthritis Index and the University of California
at Los Angeles activity scale. In total, 17 patients were lost to follow-up leaving 103 patients
at two years. There were no revisions in the cementless group and
three revisions (5%) in the cemented group (two because of hip pain
and one for pseudotumour). The total BMD was significantly higher in the cementless group
at six months (p <
0.001) and one year (p = 0.01) than in the
cemented group, although there was a loss of statistical significance
in the difference at two years (p = 0.155). All patient outcomes improved significantly: there were no significant
differences between the two groups. The results show better preservation of femoral neck BMD with
a cementless femoral component after two years of follow-up. Further
investigation is needed to establish whether this translates into
improved survivorship. Cite this article:
Hip displacement, defined in this study as a
migration percentage (MP) of more than 40%, is a common, debilitating complication
of cerebral palsy (CP). In this prospective study we analysed the
risk of developing hip displacement within five years of the first
pelvic radiograph. All children with CP in southern and western Sweden are invited
to register in the hip surveillance programme CPUP. Inclusion criteria
for the two groups in this study were children from the CPUP database
born between 1994 and 2009 with Gross Motor Function Classification
System (GMFCS) III to V. Group 1 included children who developed
hip displacement, group 2 included children who did not develop
hip displacement over a minimum follow-up of five years. A total
of 145 children were included with a mean age at their initial pelvic
radiograph of 3.5 years (0.6 to 9.7). The odds ratio for hip displacement was calculated for GMFCS-level,
age and initial MP and head-shaft angle. A risk score was constructed
with these variables using multiple logistic regression analysis.
The predictive ability of the risk score was evaluated using the
area under the receiver operating characteristics curve (AUC). All variables had a significant effect on the risk of a MP >
40%. The discriminatory accuracy of the CPUP hip score is high (AUC
= 0.87), indicating a high ability to differentiate between high-
and low-risk individuals for hip displacement. The CPUP hip score
may be useful in deciding on further follow-up and treatment in
children with CP. Cite this article:
The aims of this study were to compare the diagnostic test characteristics
of ultrasound alone, metal artefact reduction sequence MRI (MARS-MRI)
alone, and ultrasound combined with MARS-MRI for identifying intra-operative
pseudotumours in metal-on-metal hip resurfacing (MoMHR) patients
undergoing revision surgery. This retrospective diagnostic accuracy study involved 39 patients
(40 MoMHRs). The time between imaging modalities was a mean of 14.6
days (0 to 90), with imaging performed at a mean of 5.3 months (0.06
to 12) before revision. The prevalence of intra-operative pseudotumours
was 82.5% (n = 33).Aims
Methods
The accurate reconstruction of hip anatomy and
biomechanics is thought to be important in achieveing good clinical
outcomes following total hip arthroplasty (THA). To this end some
newer hip designs have introduced further modularity into the design
of the femoral component such that neckshaft angle and anteversion,
which can be adjusted intra-operatively. The clinical effect of
this increased modularity is unknown. We have investigated the changes
in these anatomical parameters following conventional THA with a
prosthesis of predetermined neck–shaft angle and assessed the effect
of changes in the hip anatomy on clinical outcomes. In total, 44 patients (mean age 65.3 years (standard deviation
( The mean pre-operative neck–shaft angle was significantly increased
by 2.8° from 128° ( Cite this article:
The use of robotics in arthroplasty surgery is expanding rapidly as improvements in the technology evolve. This article examines current evidence to justify the usage of robotics, as well as the future potential in this emerging field.
The August 2014 Trauma Roundup360 looks at: On-table CT for calcaneal fractures; timing of femoral fracture surgery and outcomes; salvage arthroplasty for failed internal fixation of the femoral neck; screw insertion in osteoporotic bone; fibular intramedullary nailing on the ascendant; posterior wall acetabular fractures not all that innocent; bugs, plating and resistance and improving outcomes in olecranon tension band wiring.
Pelvic obliquity is a common finding in adolescents
with cerebral palsy, however, there is little agreement on its measurement
or relationship with hip development at different gross motor function
classification system (GMFCS) levels. The purpose of this investigation was to study these issues in
a large, population-based cohort of adolescents with cerebral palsy
at transition into adult services. The cohort were a subset of a three year birth cohort (n = 98,
65M: 33F, with a mean age of 18.8 years (14.8 to 23.63) at their
last radiological review) with the common features of a migration
percentage greater than 30% and a history of adductor release surgery. Different radiological methods of measuring pelvic obliquity
were investigated in 40 patients and the angle between the acetabular
tear drops (ITDL) and the horizontal reference frame of the radiograph
was found to be reliable, with good face validity. This was selected
for further study in all 98 patients. The median pelvic obliquity was 4° (interquartile range 2° to
8°). There was a strong correlation between hip morphology and the
presence of pelvic obliquity (effect of ITDL on Sharpe’s angle in
the higher hip; rho 7.20 (5% confidence interval 5.59 to 8.81, p
<
0.001). This was particularly true in non-ambulant adolescents
(GMFCS IV and V) with severe pelvic obliquity, but was also easily
detectable and clinically relevant in ambulant adolescents with mild
pelvic obliquity. The identification of pelvic obliquity and its management deserves
closer scrutiny in children and adolescents with cerebral palsy. Cite this article: