Fractures of the forearm (radius or ulna or both)
in children have traditionally been immobilised in plaster of Paris (POP)
but synthetic cast materials are becoming more popular. There have
been no randomised studies comparing the efficacy of these two materials.
The aim of this study was to investigate which cast material is
superior for the management of these fractures. We undertook a single-centre
prospective randomised trial involving 199 patients with acute fractures
of the forearm requiring general anaesthesia for reduction. Patients
were randomised by sealed envelope into either a POP or synthetic
group and then underwent routine closed reduction and immobilisation
in a cast. The patients were reviewed at one and six weeks. A satisfaction
questionnaire was completed following the removal of the cast. All
clinical complications were recorded and the cast indices were calculated.
There was an increase in complications in the POP group. These complications
included soft areas of POP requiring revision and loss of reduction
with some requiring re-manipulation. There was an increased mean
padding index in the fractures that lost reduction. Synthetic casts
were preferred by the patients. This study indicates that the clinical outcomes and patient satisfaction
are superior using synthetic casts with no reduction in safety. Cite this article:
Forearm fractures in children have a tendency
to displace in a cast leading to malunion with reduced functional
and cosmetic results. In order to identify risk factors for displacement,
a total of 247 conservatively treated fractures of the forearm in
246 children with a mean age of 7.3 years ( Fractures of both forearm bones in children have a strong tendency
to displace even in an above-elbow cast. Severe fractures of the
non-dominant arm are at highest risk for displacement. Radiographs
at set times during treatment might identify early displacement,
which should be treated before malunion occurs, especially in older children
with less potential for remodelling. Cite this article:
Redisplacement is the most common complication
of immobilisation in a cast for the treatment of diaphyseal fractures
of the forearm in children. We have previously shown that the three-point
index (TPI) can accurately predict redisplacement of fractures of
the distal radius. In this prospective study we applied this index
to assessment of diaphyseal fractures of the forearm in children
and compared it with other cast-related indices that might predict
redisplacement. A total of 76 children were included. Their ages,
initial displacement, quality of reduction, site and level of the
fractures and quality of the casting according to the TPI, Canterbury
index and padding index were analysed. Logistic regression analysis
was used to investigate risk factors for redisplacement. A total
of 18 fractures (24%) redisplaced in the cast. A TPI value of >
0.8 was the only significant risk factor for redisplacement (odds
ratio 238.5 (95% confidence interval 7.063 to 8054.86); p <
0.001). The TPI was far superior to other radiological indices, with
a sensitivity of 84% and a specificity of 97% in successfully predicting
redisplacement. We recommend it for routine use in the management
of these fractures in children. Cite this article:
The February 2013 Children’s orthopaedics Roundup. 360 . looks at: ABC treated with suction and curettage; peri-acetabular osteotomy;
The October 2012 Children’s orthopaedics Roundup360 looks at: magnetic growing rods and scoliosis correction; maintaining alignment after manipulation of a radial shaft fracture; Glaswegian children and swellings of obscure origin; long-term outcome of femoral derotation osteotomy in cerebral palsy; lower-leg fractures and compartment syndrome in children; fractures of the radial neck in children; management of the paediatric Monteggia fracture; and missing the dislocated hip in Western Australia.
