The effect of regioisomerism on the photophysical properties of alkylated-naphthalene liquids

Novel alkylated naphthalene liquids with a correlation among the 1- and 2-regioisomeric chemical structures and their photophysical, calorimetric and rheological properties are presented.

Change the habit to change the practice: Do audits really ever change anything?

INTRODUCTION

Methicillin resistant staphylococcus aureus (MRSA) eradication by nurses and pre-op induction antibiotics are mandated for emergency surgery, where true status is unknown. We assessed adherence to local MRSA guidelines for patients undergoing emergency hip fracture surgery and employed point of decision prompts to influence clinicians' behaviour.

METHODS

We undertook a retrospective record review for all patients undergoing emergency hip fracture surgery at a UK major trauma centre over 3-months. Demographics, MRSA eradication therapy and antibiotics were recorded. Admission-to-MRSA swab result time was compared to the admit-to-operation time. Posters on induction antibiotics were placed in anaesthetic rooms, stickers on MRSA eradication therapy on nursing care bundles and standards re-audited after 6 months.

RESULTS

The case-mix was similar in both audit cycles: initial audit (n=69, mean age 76.9, range 33-94), re-audit (n=77, mean age 73.8, range 18-95). There was a small rise in adherence to eradication therapy prescription (1% vs 8%) after sticker distribution, although compliance was poor pre and post intervention. Correct antibiotic choice for MRSA unknown patients (18% vs 94%) improved significantly after poster intervention. Operations occurred at a median of 24.05h (Q1 17.6, Q3 32.3) from admission but MRSA swab results returned at a median of 48h (Q1 41.5, Q3 59.5) p=<0.0001.

CONCLUSION

Providing reminders at the points where decisions are to be made are effective. Audit interventions should be easily undertaken and will become habitual if connected in sequence to old behaviours.

Negligence claims following non-union and malunion of long bone fractures: An analysis of 15 years of data

INTRODUCTION

Non-unions and malunions are recognised to be complications of the treatment of long bone fractures. No previous work has looked at the implications of these complications from a medicolegal perspective.

METHODS

A complete database of litigation claims in Trauma and Orthopaedic Surgery was obtained from the NHS Litigation Authority. Two separate modalities of the treatment of long bone fractures were examined i) non-union and ii) acquired deformity. The type of complaint, whether defended or not, and costs were analysed.

RESULTS

There were claims of which 97 related to non-union and 32 related to postoperative limb deformity. The total cost was £8.2 million over a 15-year period in England and Wales. Femoral and tibial non-unions were more expensive particularly if they resulted in amputation. Rotational deformity cost nearly twice as much as angulation deformities.

CONCLUSIONS

The cosmetic appearances of rotational malalignment and amputation results in higher compensation; this reinforces an outward perception of outcome as being more important than harmful effects. Notwithstanding the limitations of this database, there are clinical lessons to be gained from these litigation claims.

Litigation costs of wrong-site surgery and other non-technical errors in orthopaedic operating theatres

INTRODUCTION

This study reviews the litigation costs of avoidable errors in orthopaedic operating theatres (OOTs) in England and Wales from 1995 to 2010 using the National Health Service Litigation Authority Database.

MATERIALS AND METHODS

Litigation specifically against non-technical errors (NTEs) in OOTs and issues regarding obtaining adequate consent was identified and analysed for the year of incident, compensation fee, cost of legal defence, and likelihood of compensation.

RESULTS

There were 550 claims relating to consent and NTEs in OOTs. Negligence was related to consent (n=126), wrong-site surgery (104), injuries in the OOT (54), foreign body left in situ (54), diathermy and skin-preparation burns (54), operator error (40), incorrect equipment (25), medication errors (15) and tourniquet injuries (10). Mean cost per claim was £40,322. Cumulative cost for all cases was £20 million. Wrong-site surgery was error that elicited the most successful litigation (89% of cases). Litigation relating to implantation of an incorrect prosthesis (eg right-sided prosthesis in a left knee) cost £2.9 million. Prevalence of litigation against NTEs has declined since 2007.

CONCLUSIONS

Improved patient-safety strategies such as the World Health Organization Surgical Checklist may be responsible for the recent reduction in prevalence of litigation for NTEs. However, addition of a specific feature in orthopaedic surgery, an 'implant time-out' could translate into a cost benefit for National Health Service hospital trusts and improve patient safety.

Segmental fractures of the tibia treated by circular external fixation

We have carried out a retrospective review of 20 patients with segmental fractures of the tibia who had been treated by circular external fixation. We describe the heterogeneity of these fractures, their association with multiple injuries and the need for multilevel stability with the least compromise of the biology of the fracture segments. The assessment of outcome included union, complications, the measurement of the functional IOWA knee and ankle scores and the general health status (Short-form 36).

The mean time to union was 21.7 weeks (12.8 to 31), with no difference being observed between proximal and distal levels of fracture. Complications were encountered in four patients. Two had nonunion at the distal level, one a wire-related infection which required further surgery and another shortening of 15 mm with 8° of valgus which was clinically insignificant. The functional scores for the knee and ankle were good to excellent, but the physical component score of the short-form 36 was lower than the population norm. This may be explained by the presence of multiple injuries affecting the overall score.

Surgical site infections following open reduction and internal fixation of ankle fractures

Background:

Ankle fracture fixation is one of the most commonly performed orthopaedic procedures. Although the results are generally favourable, complications are not uncommon, particularly in the case of surgical site infections. These have considerable impact on both postoperative morbidity and healthcare costs. Paradoxically, there is a paucity of literature studying patients who sustain them and therefore little is known about ways such occurrences can be minimised. The purpose of this study was to determine the infection rate following ankle fracture fixation and elucidate variables in their causation.

Methods:

We retrospectively reviewed 50 consecutive patients who underwent open reduction and internal fixation of an ankle fracture. The study group consisted of 26 females and 24 males with an average age of 43 (Range 16-82) years.

Results:

Problems with superficial infections were noted in seven patients and deep infections in five. Of the latter, four patients underwent further surgery including two that had their metal work removed. With use of the Fisher’s exact test we determined that only smoking and a bimalleolar fracture pattern were significant variables, having p-values of 0.02 and 0.04 respectively.

Conclusion:

We recommend that patients with ankle fractures who either have a history of smoking and/or bimalleolar injury be counselled about the potential risk of infection and its implications on their functional recovery. The ability to identify patients at risk of such problems highlights the need for caution during the perioperative period so that care strategies may be altered to facilitate recovery.

Treatment of high-energy tibial plateau fractures

Treatment of high-energy fractures of the tibial plateau requires an inordinate degree of surgical effort in order to avoid complications. Fracture reduction can be a challenge to experienced hands and the soft tissue conditions are intolerant of careless dissection. In general, it is an oversimplification to use one technique of stabilisation for such a heterogenous group (even within one classification tier). This article describes the specific attributes of Schatzker type 6 injuries (AO 41C) that enable decisionmaking algorithms to be generated and balances the merits for plate stabilisation and external fixation against injury characteristics. A detailed description is given for circular fixation in these injuries to assist those unfamiliar with the technique.

Reduced perception of pain in schizophrenia: its relevance to the clinical diagnosis of compartment syndrome

An atypical presentation of compartment syndrome is reported in a chronic schizophrenic patient with a closed upper tibial fracture. The features of this case and a review of the literature pertaining to pain perception in this group of patients are presented to raise clinical awareness of this combination of disorders, which may lead to delayed treatment of a surgical emergency, consequent on lack of development of classic symptoms in these patients. We suggest continuous intracompartmental pressure monitoring, even in awake schizophrenic patients with injuries at risk of compartment syndrome.