Charcot neuroarthropathy is a limb threatening condition and the optimal surgical strategy for limb salvage in gross foot deformity remains unclear. We present our experience of using fine wire frames to correct severe midfoot deformity, followed by internal beaming to maintain the correction. Nine patients underwent this treatment between 2020–2023. Initial deformity correction by Ilizarov or hexapod butt frame was followed by internal beaming with a mean follow up of 11 months. A retrospective analysis of radiographs and electronic records was performed. Meary's angle, calcaneal pitch, cuboid height, hindfoot midfoot angle and AP Meary's angle were compared throughout treatment. Complications, length of stay and the number of operations are also described.Introduction
Materials and Methods
Management of deformity involving limb length discrepancy (LLD) using intramedullary devices offers significant benefits to both patients and clinicians over traditional external fixation. Following the withdrawal of the PRECICE nail, the Fitbone became the primary implant available for intramedullary lengthening and deformity correction within our service. This consecutive series illustrates the advantages and complications associated with the use of this device, and describes a novel technique modification for antegrade intramedullary lengthening nails. A retrospective cohort review was performed of patient outcomes after treatment with the Fitbone nail at two tertiary referral limb reconstruction services (one adult, one paediatric) between January 2021 to December 2023. Aetiology, indications, initial and final LLD, use of concomitant rail assisted deformity correction (ORDER), removal time and healing index were assessed. Complications of treatment were evaluated and described in detail, alongside technique modifications to reduce the rate of these complications.Introduction
Materials & Methods
External fixation (EF) devices are commonly used in the management of complex skeletal trauma, as well as in elective limb reconstruction surgery for the management of congenital and acquired pathology. The subsequent removal of an EF is commonly performed under a general anaesthetic in an operating theatre. This practice is resource intensive and limits the amount of operating theatre time available for other surgical cases. We aimed to assess the use of regional anaesthesia as an alternative method of analgesia to facilitate EF removal in an outpatient setting. This prospective case series evaluated the first 20 consecutive cases of EF removal in the outpatient clinic between 10/06/22 to 16/09/22. Regional anaesthesia using ultrasound-guided blockade of peripheral nerves was administered using 1% lidocaine due to its rapid onset and short half-life. Patients were assessed for additional analgesia requirement, asked to evaluate their experience and perceived pain using the Visual Analogue Scale (VAS).Introduction
Materials & Methods
IM (Intra Medullary) nail fixation is the standard treatment for diaphyseal femur fractures and also for certain types of proximal and distal femur fractures. Despite the advances in the tribology for the same, cases of failed IM nail fixation continue to be encountered routinely in clinical practice. Common causes are poor alignment or reduction, insufficient fixation and eventual implant fatigue and failure. This study was devised to study such patients presenting to our practice and develop a predictive model for eventual failure. 57 patients who presented with failure of IM nail fixation (± infection) between Jan 2011 – Jun 2020 were included in the study and hospital records and imaging reviewed. Those fixed with any other kinds of metalwork were excluded. Classification for failure of IM nails – Type 1: Failure with loss of contact of lag screw threads in the head due to backing out and then rotational instability, Type 2A: Failure of the nail at the nail and lag screw junction, Type 2B: Failure of the screws at the nail lag screw junction, Type 3: Loosening at the distal locking sites with or without infection. X-rays reviewed and causes/site of failure noted.Introduction
Materials and Methods
Methoxyflurane can cause hepatotoxicity and nephrotoxicity at anaesthetic doses but has excellent analgesic properties and no nephrotoxic effects in patients without preexisting disease. Approved for use in the UK and Ireland in 2015, it is currently being used in emergency departments for analgesia during fracture reduction. During the Covid emergency, with theatre access severely restricted and many patients unwilling to use inhaled Nitrous oxide, Penthrox had the potential to provide adequate pain relief to aid frame removals and minor procedures in the clinic. Patients presenting to the Limb Reconstruction Unit Elective clinic and requiring frame removal or minor procedures were included in the study. Patients with renal, cardiac or hepatic disease, history of sensitivity to fluorinated anaesthetic agents and those on any nephrotoxic or enzyme inducing drugs were excluded. Verbal consent was obtained, the risks and benefits explained and the procedure was done in a side room in the clinic. Besides patient and procedure details, the Visual Analog Score and Richmond Agitation Scale was noted and patient's satisfaction documented. The results were presented as numbers, means and averages.Introduction
Materials and Methods
Calcium sulphate (CaSO4) is a recognised form of delivery of antibiotic for the treatment of bone infection. Complications inherent in the rapid reabsorption are well recognised (predominantly that of wound breakdown and leakage). There is little data on the frequency of these complications. The purpose of this study was to quantify the incidence of wound leakage from CaSO4 and the service impact in orthopaedic surgery. Infective limb reconstruction cases managed with gentamicin impregnated CaSO4 between 2004–2012 were identified. Co-morbidities and factors influencing wound leakage were recorded. Medical and wound care notes were analysed. Episodes of delayed discharge and unscheduled clinic attendance due to wound leakage were recorded. 80 patients (18 female, 62 male), with a mean age of 45 years (18–80 years, median 46 years) underwent 84 procedures utilising CaSO4. 47 were in the tibia, 14 in the femur, 10 in the humerus. A mean of 36 mL (4–150 mL, median 22 ml, unknown in 18 cases) was used. 31 cases (37%) had post-operative wound leakage, the majority from the tibia(55%) and femur(25%). 21 cases (25%) leaked within the first week. Each 10 ml rise in CaSO4 volume lead to a 50% rise in leakage incidence. Leak duration ranged from 4 days–10 months. The majority leaked between 1–4 months before ceasing spontaneously and without specific treatment. 14 cases (17%) required a cumulative 32 unscheduled clinic appointments for leakage. Further surgery was required for infection in 7 cases (8.3%). Delayed discharge was not clearly attributable to CaSO4. The mode of skin closure and cultured organism did not affect leakage. CaSO4 has unpredictable leakage, but is present in 1/3 of patients. Volume of CaSO4 impacts on leakage. Leakage usually self-resolves and does not clearly impact on final outcomes. The cost impact of ongoing wound care and additional clinic appointments may be substantial.
Definitions and perceptions of good and poor outcome vary between patients and surgeons, and perceived inadequate outcome can lead to litigation. We investigated outcomes of litigation claims relating to non-union and deformity following lower limb long bone fractures from 1995 to 2010. The database of all 10456 claims related to Trauma and Orthopaedic Surgery was obtained from the NHS Litigation Authority. Data was searched for “deformity, non-union and mal-union”, excluding spine, arthroplasty, foot and upper limb surgery. The type of complaint, whether defended or not, and costs was analysed. 241 claims met our criteria, 204 of which were closed, and 37 unsettled. Deformity/mal-union constituted 97, and non-union 143. Coronal/sagittal deformity cost £4.2 million, mean £45,487 (60% received compensation). Rotational mal-unions cost £1.6 million, mean £114,263 (87% received compensation). Non-union cost £5.3 million, mean £75,866 (60% received compensation). Mean legal fees for coronal/sagittal deformity was £18,772, rotational deformity £37,384, and non-union £24,680. The total cost of litigation was £12.2 million, with a mean of £59,597 per settled claim. The mean pay-out for all confirmed negligence/liability was £56,046 (£1,300–£500,000, median £21,500) per case. Non-union is an accepted complication following fracture surgery. However, this does not mitigate against non-union being seen as representing a poor standard of care. While it is unclear whether the payouts reflect a defensive culture or were due to avoidable errors, and notwithstanding the limitations of the database, we argue that failure of the index surgery should prompt a referral to a specialist centre. The cosmetic appearances of rotational malalignment results in higher compensation, reinforcing outward perception of outcome as being more important than harmful effects. We also note that the database sometimes contained conflicting and incomplete data, and make a case for standardisation of this component of the outcome process to allow for learning and reflection.
Claims for clinical negligence are increasing annually. Limb reconstructive surgery recognises ‘problems, obstacles, and complications’ as part of the treatment process, but this does not prevent a claim for an alleged poor result or a complication. We analysed claims for clinical negligence in the National Health Service in England and Wales for issues following limb reconstructive surgery. A database of all 10,456 claims related to Trauma and Orthopaedic Surgery from 1995–2010 was obtained from the NHS Litigation Authority. A Search Function for keywords “Ilizarov, limb reconstruction, external fixation, and pin-site” was used for subset analysis. Data was analysed for type of complaint, whether defended or not, and for costs. 52 claims fitted our filters - 48 were closed, and 4 ongoing. The claims included damage to local structures (n=3), missed compartment syndrome (n=2), premature frame removal (n=5), infection (n=13), wrong-site-surgery (n=1), poor outcome (n=16) and technical error (n=10). Seven patients underwent amputation. The total cost of litigation was £4,444,344, with a mean of £90,700 per settled claim. 40% were successfully defended, with defence cost of £15,322. The mean pay-out for confirmed negligence/liability was £90,056 (£1,500-£419,999, median £45,000) per case. We believe this is the first study looking at complications following limb reconstruction from this perspective. Analysis reveals a spectrum of claims for negligence. Perceived technical errors and poor outcome predominate. Whilst the limitations of the database preclude against identification of whether the procedures were carried out in specialist units, claims for technical errors are a cause for concern. These will be discussed in detail. Outcomes following limb reconstruction are difficult to quantify, and the settling of claims for a perceived poor outcome makes the case for pre-operative counselling and the need for robust outcome measures in our specialty.
The purpose of this study was to investigate the usefulness of PET-CT in the diagnosis and treatment of long bone infections following trauma. All patients referred to the limb reconstruction service for management of non-unions were treated by the same protocol. PET-CT with FDG was performed in all patients to assess if the non-union site was infected and if so, the extent of the infection. Those requiring operative management were treated in a 2-stage manner. Initially with debridement based on PET-CT; sampling for microbiology and histology; and then Teicoplanin and Ciprofloxacin. If samples were positive then the patients were treated for a total of 6 weeks with antibiotics based on microbiology advice before undergoing definitive fixation. The sensitivity, specificity, PPV, and NPV were then calculated for PET-CTs ability to predict presence of infection using extended cultures and histology as the gold standard. 38 consecutive patients underwent surgery, 24 male and 14 female. 24 were deemed infected on extended culture or histology. PET-CT was anecdotally found to be extremely useful at determining the extent of infection to plan debridement. PPV 0.83 NPV 0.89 Sensitivity 0.96 Specificity 0.61 As well as providing unique ability to demarcate areas of bony infection in the presence of metalwork, the ability to detect or exclude infection was exceptional. This is a test, however, which is operator dependent and requires a skilled Nuclear Radiology Consultant to accurately interpret images. In our relatively small pilot study the accuracy improved noticeably over one year. PET-CT has potential to be a powerful tool in the diagnosis and treatment of long bone infection following trauma and certainly warrants further investigation.
To determine the outcome of the use of Bone Morphogenetic Protein 7 (BMP7) as a replacement for bone graft in a limb reconstruction unit Retrospective case note and imaging review was performed on a cohort of 71 consecutive patients from October 2009 to October 2012 in whom BMP7 was used to achieve union. The patients were identified from a pharmacy database. Factors analysed included the perceived indication, location in the skeleton, age, comorbidities, type of procedure (non-union, fusion, docking site etc), complications and need for revision surgery.Statement of purpose
Methods
To describe the results and technique of ankle fusion following failed Total Ankle Replacement (TAR) in a limb reconstruction unit. Retrospective case note, microbiology and imaging review was performed on four consecutive patients referred to the limb reconstruction unit for salvage of infected total ankle replacement surgery since 2009. The patients were identified from operative list and tertiary referral records. A review of the current literature regarding TAR was performed.Statement of purpose
Methods
The treatment of chronic osteomyelitis involves a debridement of affected non-viable tissue and the use of antibiotics. Where surgery leaves a cavity, dead space management is practised with antibiotic impregnated cement. These depots of local antibiotics are variable in elution properties and need removal. We review the use of bioabsorbable synthetic calcium sulphate as a carrier of gentamicin and as an adjunct in treating intramedullary osteomyelitis. A retrospective review of cases treated consecutively from 2006 to 2010 was undertaken. Variables recorded included aetiology, previous interventions, diagnostic criteria, radiological features, serology and microbiology. The Cierney-Mader system was used to classify. Treatment involved removal of implants (if any), intramedullary debridement and local resection (if needed), lavage and instillation of the gentamicin carrier, supplemented with systemic antibiotics. Follow-up involved a survival analysis to time to recurrence, clinical and functional assessment (AOFAS-Ankle/IOWA knee/Oxford Hip) and general health outcome (SF36).Introduction
Methods
The treatment of chronic osteomyelitis involves a debridement of affected non-viable tissue and the use of antibiotics. Where surgery leaves a cavity, dead space management is practised with antibiotic impregnated cement. These depots of local antibiotics are variable in elution properties and need removal. We review the use of bioabsorbable synthetic calcium sulphate as a carrier of gentamicin and as an adjunct in treating intramedullary osteomyelitis. A retrospective review of cases treated consecutively from 2006 to 2010 in the Royal Liverpool University Hospital was undertaken. Variables recorded included aetiology, previous interventions, diagnostic criteria, radiological features, serology and microbiology. The Cierney-Mader system was used to classify. Treatment involved removal of implants (if any), intramedullary debridement and local resection (if needed), lavage and instillation of the gentamicin carrier, supplemented with systemic antibiotics. Follow-up involved a survival analysis to time to recurrence, clinical and functional assessment (AOFAS-Ankle/IOWA knee/Oxford Hip) and general health outcome (SF36). There were 31 patients (22 male, 9 female). The mean age was 47 years (20-67). Twenty-five cases were post-surgery (6 open fractures) and 6 were haematogenous in origin. The median duration of osteomyelitis was 1.6yrs. The bones affected were 42% femur, 45% tibia, 3% radius and 10% humerus. 11 cases had diffuse as well as intramedullary involvement. 9 cases underwent segment resection and bone transport. We identified Staphylococcus Aureus in 16 and Coagulase Negative Staphylococcus in 6 cases. The median follow-up was 1.7 years (0.5-5.6). The median scores attained were: AOFAS-78, DASH-32, IOWA-71, Oxford-32. There were two recurrences. Dead space management of intramedullary infections is difficult. We describe a method for delivery of local antibiotics and provide early evidence to its efficacy. The treatment success to date is 93%. Bioabsorbable carriers of antibiotics are efficacious adjuncts to surgical treatment of intramedullary osteomyelitis.
