Background

One of the prime concerns when managing patients in plaster casts is loss of reduction. There have been studies showing that proper moulding of the plaster cast is critical in maintaining reduction. Recent studies have negated concerns that fibreglass (FG) casts do not allow swelling, when compared to plaster of Paris (POP) casts. However, their potential in maintenance of reduction has not been investigated.

BACKGROUND: One of the prime concerns when managing patients in plaster casts is loss of reduction. There have been studies showing that proper moulding of plaster cast is critical in maintaining reduction. Recent studies have negated concerns that fibreglass (FG) casts do not allow swelling, when compared to plaster of Paris (POP) casts. However, their potential in maintenance of reduction has not been investigated.

MATERIALS AND METHODS: We compared the three-point bending properties of FG casts with POP casts over the first 48 hours. The effect of splitting the casts, at one hour and 24 hours, was studied. Also, the tolerance to handling was assessed by moving the hinge joint while the casts were setting.

Three identical jigs with hinged metal rods were designed to simulate Colle’s fracture. The bending force was provided by 0.5 kg weight applied at one end of the jig. The resultant displacement was measured to nearest 0.01 mm over the next 48 hours. Each test was repeated 6 times (total 8 groups and 42 tests).

RESULTS: Most deformation occurred within 1 hour for FG casts and 24 hours for POP casts. The total deformation in FG cast (mean 3.4 mm) was significantly less than in POP casts (mean 6.2 mm) (p > 0.05).

Splitting at 1 hour increased the final deformation of the POP cast and not of the FG cast (p > 0.05). No significant difference was noticed if the casts were split at 24 hours.

CONCLUSION: Three-point moulding with FG casts can provide better constant loading at the fracture site than the POP casts. Early setting of FG cast allows earlier splitting. We recommend clinical trials to ascertain the safety and efficacy of split FG casts.

Abstract

The aim is to describe the safety and efficacy of TAL in out-patient clinics when managing diabetic forefoot ulcers.

Introduction: Previous reports have highlighted the impact of emergent crazes such as in-line skating and micro-scooters, with attention being drawn to potential accident prevention and emergent injury patterns.

A modern craze is the Harry Potter series of books. UK sales of the latest book, The Half-Blood Prince, are estimated to reach 4 million. Given the lack of horizontal velocity, height, wheels or sharp edges we were interested to investigate the impact the books had on children’s traumatic injuries.

Methods & Materials: A retrospective review was undertaken of Children aged 7 to 15 attending the Emergency Department of our Level 1 trauma unit over the summer months of a 3 year period.

The launch dates of the most recent two books (Order of the Phoenix and The Half-Blood prince) were identified and the admissions for these weekends were compared to surrounding summer weekends and those dates in previous years.

Data were obtained from MetOffice (www.metoffice.gov.uk) to establish weather conditions recorded for each of the identified weekends. This would enable us to adjust for this as a confounding variable if necessary.

Results: The mean attendance for children aged 7 to 15 years for this period was 65.1 (median 66, standard deviation 13.289, standard error 2.771). For the two intervention weekends the attendance rate was 36 and 37. This represents a significant decrease in emergency department attendances on those weekends (p < 0.05).

MetOffice data suggested no confounding effect of weather.

Discussion & Conclusion: Harry Potter books appear to protect children from traumatic injuries. The Royal Society for the Prevention of Accidents (rospa.org.uk) is dedicated to the identification and prevention of high risk childhood activities and produce guidelines on keeping children safe. To date no research has addressed the option of ‘distraction therapy’ to prevent injuries.

The National Institute of Clinical Excellence (NICE) published guidance for reducing the risk of venous thromboembolism (VTE) in January 2010. This guidance has had a significant impact on the management of all inpatients. It is now mandatory to risk assess every inpatient and commence appropriate treatment if indicated. The guidelines specifically exclude outpatients although NICE recognises' that lower limb cast immobilisation is a risk factor for VTE. The purpose of our study was to establish the current practice for the management of outpatients treated with lower limb casts in England.

The NHS Choices website lists 166 acute hospitals in England. A telephone audit was conducted in February 2011. A member of the on call orthopaedic team was asked: 1. Are you aware of the NICE guidelines for VTE prophylaxis? 2. In your department, outpatients treated with a lower limb cast, are they risk assessed for VTE? 3. If a patient undergoes Open Reduction Internal Fixation (ORIF) for an ankle fracture and is discharged wearing a cast, are they given VTE prophylaxis? 4. If yes - for how long are they treated?

Responses were obtained from 150 eligible hospitals (1 FY1, 28 FY2, 44 ST1-ST2, 76 ST3+, 1 Consultant). 62% of responders stated that they were aware of the NICE guidance. 40% of responders stated that outpatients were routinely risk assessed for VTE. 32% of responders stated that ankle fractures treated with an ORIF and discharged wearing a cast would receive VTE prophylaxis. The duration of treatment varied from 5 days, to 6 weeks, to removal of cast.

The management of patients treated with a lower limb cast is variable and inconsistent throughout England. Although there are no national guidelines for this patient group, the routine risk assessment of outpatients was higher than anticipated by the authors. We recommend that if VTE prophylaxis is commenced as an inpatient, then it should be continued until the cast is removed.

Background

To compare quality of life during treatment in children and adolescents with tibial fracture treated with either a definitive cast or Ilizarov frame.

Introduction and Aims: Union of femoral shaft fractures in a shortened position is a recognised complication of spica cast treatment. Such shortening can only be assessed radiographically until the spica has been removed. The constraints of a spica cast complicate the imaging of the femur and may lead to error in assessing shortening. This study aims to quantify the magnitude of such error for application to clinical practice.

Method: A model for a spiral femoral fracture in a spica cast was devised. Shortening of the femoral segment through telescoping and angulation was controlled with a Wagner lengthening device external to the spica. Shortening from angulation and telescoping were varied and radiographic measurements compared with real measurements. The correlation between true and radiographic shortening of > 2cm was measured with the kappa value.

Results: There was good agreement between radiological and real shortening of > 2cm. Where shortening was present without angulation, the radiological measurement over-estimated the degree of shortening. The error increased with the amount of shortening. Angulation of more than 30 degrees caused the radiological measurement to under-estimate the true amount of segmental shortening.

Conclusion: This study suggests that radiological measurement of femoral shortening in a spica should reliably predict clinically significant shortening when there is less than 30 degrees of fracture angulation.

Aim: This study was undertaken to assess the incidents of Deep Vein Thrombosis (DVT) and/or Pulmonary Embolus (PE) in orthopaedics outpatients who were immobilised in lower limb casts.

Materials and Methods: We retrospectively analysed the incidents of DVT/PE in a district general hospital over a one year period in orthopaedic outpatients who had their lower limb immobilised. Only patients who were no already on anti-coagulants were included and patients with co-morbidity associated with a higher risk of thrombosis were excluded. The diagnosis of DVT was made by ultrasound scan and PE confirmed with a CT pulmonary angiogram. The details of patients who were found to have a clot were cross checked with the outpatient plaster room register. The relevant case notes were then studied.

Results: There were three hundred and eighty patients who had lower limb casts, six of whom developed a blood clot during the period of immobilisation. All patients were male -and four patients presented with a DVT and two patients presented with a pulmonary embolism, all patients survived.

There were two smokers and one patient was very overweight.

Discussion: Incidents of DVT among patients with lower limb casts are low. At present there is no guideline on the use of DVT prophylaxis in orthopaedic outpatients. Our results show that even though the number of proven DVTs is low, the potential of developing a fatal pulmonary embolus in these patients is present.

Conclusion: DVT prophylaxis could be considered for orthopaedic outpatients who are treated with lower limb casts and who have additional risk factors. A larger prospective survey is required before guidelines regarding prophylaxis can be drawn up.

Introduction

Ankle fractures are one of the commonest orthopaedic injuries. A substantial proportion of these are treated non-operatively at outpatient clinics with cast immobilization. Recent literature and NICE guidelines suggest risk assessment and provision of appropriate thromboembolism in patients with lower limb casts. We conducted this survey to assess the current practice in UK regarding thromboembolism prophylaxis in these patients.

Introduction and aims

Cast immobilisation of paediatric forearm fractures has traditionally used plaster of Paris. Recently, synthetic casting materials have been used. There have been no studies comparing the efficacy of these two materials. The aim of this study is to investigate whether one material is superior for paediatric forearm fracture management.

Introduction

Two randomised trials concluded cast type (above or below elbow) makes no significant difference in the re-displacement rate of paediatric forearm fractures involving the distal third of the radius. This has not, however, led to the universal use of below elbow casts. In particular we noted one trial reported significant re-displacement in 40% or more of cases, which was much higher than we would expect.

To review the radiological outcomes and need for re-manipulation of paediatric distal forearm fractures treated with closed manipulation under anaesthesia in our institution, in part for subsequent comparison with published results.

All forearm fractures treated at a specialist children's hospital in one year were reviewed retrospectively. Based on the methodology of one trial, we included all fractures involving the distal third of the radius, with or without an ulna fracture, which underwent closed manipulation. Outcomes were radiological alignment using existing radiographs and need for re-manipulation. Cast type was at the discretion of the treating surgeon. The radiological criteria for re-displacement were based on published methodology.

79 children underwent manipulation, 71 receiving above elbow casts and 8 below elbow casts. Radiologically 21% of injuries treated in an above elbow cast re-displaced (15/71) compared to 38% of those in below elbow plasters (3/8). In 2 cases the re-displacement was treated with re-manipulation.

The preference in our institution was clearly for above elbow casts in this injury pattern. The small number of below elbow casts in our series limits any comparisons. Our rate of re-displacement using above elbow casts was half that of one of the published studies, so the existing literature is not consistent with our experience.

We undertook a prospective, single blinded, randomized, controlled trial of one hundred children treated with either an above or below elbow cast for treatment of closed, distal third forearm fractures requiring reduction. The re-manipulation rate in the below elbow group was 2% (95%CI: 0–11%) compared to 6% (95%CI: 2–15%) in the above elbow group, p=0.62. Above elbow casts do not appear to improve fracture immobilization nor reduce the requirement for re-manipulation in pediatric distal third forearm fractures.

Debate exists regarding the benefits of using below elbow casts instead of above elbow casts for maintaining reduction in pediatric distal third forearm fractures. The literature indicates a loss of reduction rate of 14.6% of children treated in an above elbow cast and 2.5% in those treated with a below elbow cast.

We undertook a prospective, single blinded, randomized, controlled trial of one hundred children treated with either an above or below elbow cast for treatment of closed, distal third forearm fractures requiring reduction. Outcome measures included re-manipulation rate, fracture displacement during cast wear, and cast complications. One hundred patients were suitably enrolled; fifty-four received an above elbow cast, forty-six received a below elbow cast. The two groups were similar in terms of age and gender. The above elbow group contained a higher proportion of both bone fractures (41/54) than the below elbow group (27/46).

There were no significant differences between the two cast groups in initial, post-reduction or cast-off fracture angulation; nor any difference in the amount of fracture displacement during cast wear. The number of cast complications was similar between the two groups. The re-manipulation rate in the below elbow group was 2% (95%CI: 0–11%) compared to 6% (95%CI: 2–15%) in the above elbow group, p=0.62.

Above elbow casts do not appear to improve fracture immobilization nor reduce the requirement for re-manipulation in pediatric distal third forearm fractures.

Funding Hip Hip Hooray, Saskatoon

The Ankle Injury Management (AIM) trial was a pragmatic equivalence randomized controlled trial conducted at 24 hospitals in the United Kingdom that recruited 620 patients aged more than 60 years with an unstable ankle fracture. The trial compared the usual care pathway of early management with open reduction and internal fixation with initially attempting non-surgical management using close contact casting (CCC). CCC is a minimally padded cast applied by an orthopaedic surgeon after closed reduction in the operating theatre. The intervention groups had equivalent functional outcomes at six months and longer-term follow-up. However, potential barriers to using CCC as an initial form of treatment for these patients have been identified. In this report, the results of the AIM trial are summarized and the key issues are discussed in order to further the debate about the role of CCC. Evidence from the AIM trial supports surgeons considering conservative management by CCC as a treatment option for these patients. The longer-term follow-up emphasized that patients treated with CCC need careful monitoring in the weeks after its application to monitor maintenance of reduction.

Cite this article: Bone Joint J 2019;101-B:1472–1475.

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: Bone Joint J 2013;95-B:1285–9.

Purpose: The main purpose of the study is to present our experience with the Ponseti casting followed by an Achilles tendon (AT) tenotomy in children with arthrogryposis multiplex congenita (AMC).

Methods: 7 children with 14 severe clubfeet were treated by us with a Ponseti manipulations and casting followed by AT tenotomy. 5 children (10 feet) were followed at least 24 months after the AT tenotomy and were selected for the final evaluation. Their mean age at follow up was 38,4 months and average follow up period was 35,8 months. The treatment was begun within first month of life, the AT tenotomy to correct rigid equinus was performed at 14,4 weeks of life on average, after 7–10 cast changes (mean 8,4). Niki H. et al. clinical criteria and standard standing AP and lateral radiographs were analyzed for final evaluation.

Results: There were 7 feet with clinically satisfactory results. Among 3 unsatisfactory feet there were two (1 child) with rocker-bottom pseudocorrections after repeated bilateral AT tenotomies and one recurrent clubfoot (1 child). Six feet required in soft tissue releases in 3, 12 and 21 months after the AT tenotomy due moderate equinus and adductus. 3 feet underwent repeated AT tenotomies in 6 and 15 months after the primary procedure. The mean interval between initial AT tenotomies and redo surgical procedures was 10,5 months (range 3–21 months). Two feet (20%) remain without significant deformity after AT tenotomies.

Conclusion: Clubfeet in AMC respond initially to the Ponseti method of casting and the deformity may be corrected or diminished. In some children wide surgical treatment can be avoided, in other delayed. Despite necessity for additional surgical intervention, the Ponseti method of casting and Achilles tenotomy does seem to be an alternative for initial treatment in children with AMC.

Salter-Harris II fractures of the distal tibia affect children frequently, and when they are displaced present a treatment dilemma. Treatment primarily aims to restore alignment and prevent premature physeal closure, as this can lead to angular deformity, limb length difference, or both. Current literature is of poor methodological quality and is contradictory as to whether conservative or surgical management is superior in avoiding complications and adverse outcomes. A state of clinical equipoise exists regarding whether displaced distal tibial Salter-Harris II fractures in children should be treated with surgery to achieve anatomical reduction, or whether cast treatment alone will lead to a satisfactory outcome. Systematic review and meta-analysis has concluded that high-quality prospective multicentre research is needed to answer this question. The Outcomes of Displaced Distal tibial fractures: Surgery Or Casts in KidS (ODD SOCKS) trial, funded by the National Institute for Health and Care Research, aims to provide this high-quality research in order to answer this question, which has been identified as a top-five research priority by the British Society for Children’s Orthopaedic Surgery. Cite this article: Bone Joint J 2023;105-B(5):471–473

Introduction: Traditionally Short arm plaster casts have been used to treat distal radius fractures. Judging adequacy of immobilisation has never been defined. A significant proportion of these fractures loose reduction due to inadequate immobilisation. A new non-invasive external fixator technology has been introduced to address the shortcomings of plaster casts. Aim: Is the new non invasive fixator better at reducing skin device interface movement, than conventional plasters. Materials and Methods: A prospective healthy volunteer study involving application of Short arm plaster of Paris cast, fibreglass cast and a new device Cambfix non-invasive wrist fixator with 15 forearms in each group, was undertaken. IRB approval and informed consent obtained from the volunteers. Colle’s type cast configuration was used. Displacement at the skin-cast and skin-new device interface was measured at proximal and distal ends. Maximal displacements noted immediately after application and after a specified intervals. Casts were windowed at the end of experiment and Cast index and Gap index were measured as ratios at the time of removal of casts. Statistical analysis was done using T-test and SPSS. Results: The non-invasive Cambfix fixator showed less mean displacement at both the proximal and distal parts compared to plaster and fibreglass casts (p< 0.01). The mean gap index for the Cambfix device was 0.09, which was statistically significantly less than 0.15 and 0.14 for Plaster of Paris and fibreglass casts respectively (p< 0.01). Casts with higher gap index showed increased displacement, however cast index was less predictive of skin-cast displacement. Conclusions: Skin-device interface movement was significantly better reduced with the Cambfix non-invasive fixator as compared with Short arm plaster of Paris and fibreglass casts. Lesser gap index is known to provide less interface movement. The Cambfix non-invasive fixator appears to achieve a better gap index more consistently. Limitations include healthy volunteer group, and relatively small numbers

We performed a prospective ultrasonographic study of tendon healing following Ponseti-type Achilles tenotomy in 27 tendons (20 patients) with idiopathic congenital talipes equinovarus. Serial ultrasound examinations (both static and dynamic) were performed at 3, 6 and 12 weeks post-operatively. Casts were removed routinely 3 weeks post-tenotomy apart from two patients over 24 months of age who remained immobilised for 6 weeks. We observed three differing phases of healing apparent at 3, 6 and 12 weeks post tenotomy. We defined the end point of healing as the observation of tendon homogeneity across the gap zone on ultrasonography. This transition to normal ultra-structure was frequently seen by ultrasonography only at 12 weeks, when the divided ends of the tendon were indistinct. Though there is evidence of continuity of the tendon at the time of cast removal, it remains in the mid-phase of healing. The time taken for complete healing should be considered prior to planning a revision tenotomy. In two children over the age of 2 years, who had repeat tenotomy, the completion of healing by our criteria took longer than 12 weeks. The tendon gap healing does not appear to occur as readily in children over two years and other Methods: may be preferable to percutaneous tenotomy

Charcot neuroarthropathy is a progressive, destructive process occurring in the presence of neuropathy. We report the outcome of neuropathic foot joints presenting to our clinic over a 12 year period. Methods. Cases were identified from the Diabetic Foot Clinic Register, 1989–2001. We studied patient demographics, clinical presentation, distribution, treatment and outcome. Results. Twenty-eight episodes of arthropathy occurred in 23 patients. Age at onset ranged from 40 to 79 years. Presentation was acute in 14 and subacute in the others. Sites affected included 23 mid foot, 4 ankle and 1 MTP. Nine feet were ulcerated at presentation, eight had a history of ulcer, nine have no ulcer history. Infection complicated the Charcot process in 15. Mean Hba1c at presentation was 9.3%. Treatments. Total contact casting 23, 4 “scotch cast” boots and 1 Air-cast walker. Pamidronate was given to 10 patients. Outcomes. Three patients died. Two had below knee amputations. Casts were required for up to 12 months. Three required orthopaedic foot reconstructions. All ulcers present initially healed. Conclusion. Charcot arthropathy remains uncommon. In our series treatment was successful in all but two patients in terms of preserved limbs, mobility and freedom from ulceration