Cemented Thompson's hemiarthroplasty in patients with intracapsular neck of femur fractures: survival analysis of 1,670 procedures.

Cemented Thompson's prostheses have been used to treat elderly patients with displaced intracapsular hip fractures at our two units for the last 15 years, amid growing support for the use of newer implant designs for hip hemiarthroplasty. This provided us with an opportunity to investigate survival of the Thompson's stem in our patients. A retrospective cohort study was set up to review previously collected data on patients who underwent Thompson's hemiarthroplasty over a 7-year period. These were linked to surgical notes, clinical letters and radiographs to record post-operative course and subsequent admissions and procedures. The identifiers were then linked to mortality data from the Office of 'National Statistics. Kaplan-Meier survival analyses were done for implants and patients. A total of 1,632 patients (mean age 82.7 years) underwent 1,670 procedures. Five-year implant survival was 95.4 %. A total of 36 stems were revised, including 14 revisions to total hip arthroplasty and 22 excision arthroplasties. Reasons for revision included infection (2.1 %), dislocation (1.1 %) and aseptic loosening (0.5 %). Symptomatic aseptic loosening and acetabular erosion occurred late (mean time 3.2 and 5.7 years, respectively following surgery). Aseptic loosening and erosion following hemiarthroplasty are relatively late complications.

Changing antibiotic prophylaxis for primary joint arthroplasty affects postoperative complication rates and bacterial spectrum.

BACKGROUND: The reduction of Clostridium difficile associated diarrhoea (CDAD) is a national priority. As part of the C. difficile improvement plan in our Trust, antibiotic prophylaxis for primary arthroplasty was changed from cefuroxime to gentamicin. Gentamicin was chosen following a review of the sensitivity profiles of all the organisms isolated from infected primary arthoplasties. METHODS: From January 2002 to September 2007, 6094 patients (Group 1) undergoing primary hip and knee arthroplasty received three doses of Cefuroxime as prophylaxis; while from October 2007 to February 2009, 2101 patients (Group 2) received single dose Gentamicin (4.5 mg/kg). We studied the rate of CDAD as well as several other postoperative complications, including rate of return to theatre (RTT), before and after the change. FINDINGS: There was an insignificant fall in CDAD from 0.18% to 0% (p=0.08) in Group 2, however there was a statistically significant increase in pneumonia (0.67-1.33%, p<0.01), acute renal failure (ARF) requiring HDU admission (0.07-0.33%, p<0.01) and RTT (1.08-1.95%, p<0.01) in this group. RTT for proven infection increased from 0.66% to 1.52% (p<0.01). CONCLUSIONS: We conclude that Gentamicin 4.5 mg/kg alone should not be used as prophylaxis for primary joint arthroplasty as it does not reduce CDAD significantly but increases the risk of other postoperative complications. We have changed our prophylaxis to low dose gentamicin (3 mg/kg) combined with Teicoplanin 400 mg given once.

The influence of surgical hoods and togas on airborne particle concentration at the surgical site: an experimental study.

BACKGROUND: Arthroplasty surgeons are increasingly using personal protection systems with helmets. It is theoretically possible for the fans in these helmets to blow squames, sweat droplets and orobronchial fomites onto the surgical site. A controlled experiment was set up to investigate the effect of different surgical gowns on counts of airborne particles measuring ≥0.3 µm, using a hand-held particle counter. METHODS: The clothing that was sequentially tested included the following: 1. Barrier(®) surgical gown (single use) made from nonwoven polypropylene (Mölnlycke Health Care Ltd, Dunstable, UK) 2. Stryker(®) T5 Helmet (reusable) covered with a disposable Stryker(®) T4/T5 urethane hood worn separate to and enclosed by the Barrier(®) surgical gown both at the front and back 3. Stryker(®) T5 Helmet (reusable) worn within a disposable Stryker(®) T4/T5 urethane zippered toga (Stryker Corporation, Kalamazoo, MI, USA) Six readings were taken for each of the following three setups in a randomised order: 1. Gown: surgeon with surgical gown and face mask 2. Hood: surgeon with surgical gown and hood, maximum fan speed 3. Toga: surgeon with toga, maximum fan speed Wilcoxon rank sum tests were applied to assess equality of means between the three occlusive measures (gown, hood, toga). P values were computed based upon one-sided tests and adjusted for multiple comparisons using the Bonferroni correction. RESULTS: The mean particle counts (over more than 5 L of air) for the three set-ups were: gown: 1178 (least protective), hood: 328, toga: 42 (most protective). There was a significant reduction in particle counts for the toga versus gown (p = 0.007) and toga versus hood (p = 0.037); differences in particle counts were not significant between the hood and gown (p = 0.140). CONCLUSIONS: The fans in the helmets do not increase contaminants by blowing particles from the head area. A significant reduction in surgeon-originated contaminants was seen with the toga compared to both the hood/gown separate ensemble and gowns alone.

Lumbar vertebral haemangioma causing pathological fracture, epidural haemorrhage, and cord compression: a case report and review of literature.

CONTEXT: Vertebral haemangiomas are recognized to be one of the commonest benign tumours of the vertebral column, occurring mostly in the thoracic spine. The vast majority of these are asymptomatic. Infrequently, these can turn symptomatic and cause neurological deficit (cord compression) through any of four reported mechanisms: (1) epidural extension; (2) expansion of the involved vertebra(e) causing spinal canal stenosis; (3) spontaneous epidural haemorrhage; (4) pathological burst fracture. Thoracic haemangiomas have been reported to be more likely to produce cord compression than lumbar haemangiomas. FINDINGS: A forty-nine year old male with acute onset spinal cord compression from a pathological fracture in a first lumbar vertebral haemangioma. An MRI delineated the haemangioma and extent of bleeding that caused the cord compression. These were confirmed during surgery and the haematoma was evacuated. The spine was instrumented from T12 to L2, and a cement vertebroplasty was performed intra-operatively. Written consent for publication was obtained from the patient. CLINICAL RELEVANCE: The junctional location of the first lumbar vertebra, and the structural weakness from normal bone being replaced by the haemangioma, probably caused it to fracture under axial loading. This pathological fracture caused bleeding from the vascularized bone, resulting in cord compression.

Thomas Eshelby (1769-1811), Nelson's Surgeon.

Horatio Nelson is an icon of British naval history. His above-elbow amputation by Thomas Eshelby remains one of the most famous surgical procedures ever performed. Yet the surgeon himself remains relatively obscure and uncelebrated. We present a vignette of this young Yorkshireman and reflect on his life and times. Eshelby was a competent and conscientious surgeon and was certainly held in high regard by Nelson. Quite a few documents pertaining to his tour of duty in the Mediterranean and to his later appointment at Plymouth have been archived. These shed valuable light on his professional life, betraying his clinical acumen, his conscientious and pragmatic nature and his demeanour toward both his peers and his superiors. Eshelby was also the patriarch of an enterprising family including three generations of surgeons and others with eponymous discoveries in the fields of geography and science.

Prognostic and Bioepidemiologic Implications of Papillary Fibroelastomas.

BACKGROUND: Papillary fibroelastomas (PFE) are benign neoplasms with little available outcome data. OBJECTIVES: This study sought to describe the frequency and clinical course of patients with surgically removed PFE and echocardiographically suspected, but unoperated, PFE. METHODS: Mayo Clinic pathology and echocardiography databases (January 1, 1995, to December 31, 2010) were queried, resulting in 511 patients: group 1 (n = 185), including patients with surgically removed, histopathologically confirmed PFE; group 1a (n = 94; 51%) with PFE removed at primary surgery; and group 1b (n = 91; 49%) with PFE removal at time of another cardiac surgery. Group 2 (n = 326) patients had echocardiographic evidence of PFE but no cardiac surgery to remove PFE. RESULTS: Group 1 had mean age of 63 ± 14 years (116 women [63%]). During the study period, we identified 112 cardiac myxomas in the pathology database and 142 in the echocardiographic database. Mean age in group 2 was 67 ± 14 years (162 women [50%]). PFE occurred most commonly on cardiac valves (n = 400 [78%]). In group 1, transient ischemic attack or stroke was the presenting symptom in 58 patients (32%). With surgical removal of valvular PFE, the valve was preserved in 92 (98%). Recurrence was documented in 3 patients (1.6%). Follow-up stroke risk in groups 1, 1a, and 1b at 1 year was 2%, 0%, and 4%; at 5 years, 8%, 5%, and 11%, respectively. Cerebrovascular accident risk in group 2 at 1 and 5 years was 6% and 13%. CONCLUSIONS: In patients with echocardiographically suspected PFE who do not undergo surgical removal, rates of cerebrovascular accident and mortality are increased.

The Best Practice Tariff helps improve management of neck of femur fractures: a completed audit loop.

BACKGROUND: The Best Practice Tariff incentivizes hospitals in the UK to improve the care they deliver, and includes a requirement to deliver multiprofessional care to patients with neck of femur fractures. The Best Practice Tariff for 2010-11 included six targets: (1) surgery within 36 hours, (2) admission under consultant-led joint orthopaedic-geriatric care, (3) admission using a multidisciplinary assessment protocol, (4) review by a geriatrician within 72 hours, (5) geriatrician-directed multi-professional rehabilitation, and (6) assessment for falls and bone protection. The authors chose to audit their Trust's compliance with these targets. METHODS: A retrospective audit was conducted in 2011 at the authors' university-affiliated tertiary care hospital, which is a regional major trauma centre. Only patients 65 years or older, with fragility-type neck of femur fractures who were treated surgically at the authors' unit and were eligible for geriatric review and multiprofessional rehabilitation, were included. The results of this audit (2010-11 Best Practice Tariff targets) were analysed and a series of procedural and logistical measures were introduced. A re-audit was performed in April 2012 for 2011-12, and the results for the 2 years were compared using appropriate statistics (Chi square tests and analysis of variance). Thirty-day mortality was compared using the summary hospital-level mortality indicator. RESULTS: A total of 410 patients were eligible for Best Practice Tariff in 2010-11, which increased to 463 in 2011-12. The changes from the first year's audit helped increase the rates for 36-hour surgery from 48.3% to 73.4% and for 72-hour geriatric review from 68.8% to 81.8% (P<0.05). The annual Best Practice Tariff achievement increased from 31.7% to 61.3% (P<0.05). The summary hospital-level mortality indicator declined from 96.5 to 61.3. CONCLUSIONS: Focusing on poorly satisfied Best Practice Tariff indicators can produce a significant improvement in the per capita Best Practice Tariff achievement. Further studies are needed to assess the health and financial gain in detail.

Oral versus intravenous tranexamic acid in enhanced-recovery primary total hip and knee replacement: results of 3000 procedures.

In our department we use an enhanced recovery protocol for joint replacement of the lower limb. This incorporates the use of intravenous tranexamic acid (IVTA; 15 mg/kg) at the induction of anaesthesia. Recently there was a national shortage of IVTA for 18 weeks; during this period all patients received an oral preparation of tranexamic acid (OTA; 25 mg/kg). This retrospective study compares the safety (surgical and medical complications) and efficacy (reduction of transfusion requirements) of OTA and IVTA. During the study period a total of 2698 patients received IVTA and 302 received OTA. After adjusting for a range of patient and surgical factors, the odds ratio (OR) of receiving a blood transfusion was significantly higher with IVTA than with OTA (OR 0.48 (95% confidence interval 0.26 to 0.89), p = 0.019), whereas the safety profile was similar, based on length of stay, rate of readmission, return to theatre, deep infection, stroke, gastrointestinal bleeding, myocardial infarction, pneumonia, deep-vein thrombosis and pulmonary embolism. The financial benefit of OTA is £2.04 for a 70 kg patient; this is amplified when the cost saving associated with significantly fewer blood transfusions is considered. Although the number of patients in the study is modest, this work supports the use of OTA, and we recommend that a randomised trial be undertaken to compare the different methods of administering tranexamic acid.

Union of an intra-articular distal radius fracture after successive failures of three locking plates: a case report.

We report a case of a 30-year old male, who presented with a right distal radius intra-articular fracture complicated by compartment syndrome. He was treated with fasciotomies and fracture fixation with a 3.5 mm LCP (Synthes(™)), followed 7 days later by skin graft. Repeat radiographs 8 weeks later showed a break across the plate at the level of an unfilled screw hole over the fracture. He underwent exchange plating with a 2.4 mm LCP Distal Radius Plate (Synthes(™)). This revision was complicated by an infected wound dehiscence 2 weeks later requiring multiple procedures. Radiographs at 20 weeks showed broken distal screws. A second revision was performed. At 12 months, the fracture had healed clinically and radiologically, but the three distal screws had broken. We discuss the multifactorial failures of the these three attempts at osteosynthesis, and which factors helped achieve osseous union. We also discuss the literature on volar locking plate breakage and conclude with the recommendations to avoid this rare complication.

The influence of process and patient factors on the recall of consent information in mentally competent patients undergoing surgery for neck of femur fractures.

INTRODUCTION: Informed consent is an ethical and legal prerequisite for major surgical procedures. Recent literature has identified 'poor consent' as a major cause of litigation in trauma cases. We aimed to investigate the patient and process factors that influence consent information recall in mentally competent patients (abbreviated mental test score [AMTS] ≥6) presenting with neck of femur (NOF) fractures. METHODS: A prospective study was conducted at a tertiary unit. Fifty NOF patients (cases) and fifty total hip replacement (THR) patients (controls) were assessed for process factors (adequacy and validity of consent) as well as patient factors (comprehension and retention) using consent forms and structured interview proformas. RESULTS: The two groups were matched for ASA (American Society of Anesthesiologists) grade and AMTS. The consent forms were adequate in both groups but scored poorly for validity in the NOF group. Only 26% of NOF patients remembered correctly what surgery they had while only 48% recalled the risks and benefits of the procedure. These results were significantly poorer than in THR patients (p = 0.0001). CONCLUSIONS: This study confirms that NOF patients are poor at remembering the information conveyed to them at the time of consent when compared with THR patients despite being intellectually and physiologically matched. We suggest using preprinted consent forms (process factors), information sheets and visual aids (patient factors) to improve retention and recall.

A national analysis of complications following hemiarthroplasty for hip fracture in older patients.

BACKGROUND: There is emerging evidence that patients with fractured neck of femur (FNOF) aged >85 years have different demands on a health-care system when compared to younger patients. AIM: We sought to better quantify this in terms of comorbidity and complication rates. DESIGN: Retrospective review of national database. METHODS: Data on all patients who underwent hip hemiarthroplasty for FNOF between January 2005 and December 2008 were extracted from the English hospital episode statistics database. RESULTS: There were 41 770 patients aged 65-84 years and 35 321 patients aged ≥85 years. The older cohort was less likely to have diabetes, chronic obstructive pulmonary disease and rheumatoid arthritis. However, they exhibited a significantly higher risk of lower respiratory tract infection [odds ratio (OR) = 1.58, 95% confidence interval (CI) 1.50-1.67)], myocardial infarction (OR = 1.67, 1.52-1.83) and acute renal failure (OR = 1.54, 1.40-1.70) within 30 days of surgery with an inpatient mortality risk at 90 days, double that of the younger age group. Length of stay (LoS) was significantly longer in patients >85 years compared to younger patients (median 18 days vs. 15, P < 0.001). CONCLUSION: Patients aged ≥85 years admitted for FNOF were found to have a lower incidence of major chronic disease but exhibited a greater incidence of acute events following hemiarthroplasty and their LoS was increased. Targeted medical interventions that focus upon this susceptible patient group may help reduce morbidity and improve survival.

Deterioration of water quality of Surma river.

Surma River is polluted day by day by human activities, poor structured sewerage and drainage system, discharging industrial and household wastes. The charas (natural channels) are responsible for surface runoff conveyance from its urban catchments to the receiving Surma River. Water samples have been collected from a part of Surma River along different points and analyzed for various water quality parameters during dry and monsoon periods. Effects of industrial wastes, municipal sewage, and agricultural runoff on river water quality have been investigated. The study was conducted within the Chattak to Sunamganj portion of Surma River, which is significant due to the presence of two major industries--a paper mill and a cement factory. The other significant feature is the conveyors that travel from India to Chattak. The river was found to be highly turbid in the monsoon season. But BOD and fecal coliform concentration was found higher in the dry season. The water was found slightly acidic. The mean values of parameters were Conductivity 84-805 micros; DO: dry-5.52 mg/l, monsoon-5.72 mg/l; BOD: dry-1mg/l, monsoon-0.878 mg/l; Total Solid: dry-149.4 mg/l, monsoon-145.7 mg/l. In this study, an effort has been taken to investigate the status of concentration of phosphate (PO(-4)) and ammonia-nitrogen (NH4-N) at four entrance points of Malnichara to the city, Guali chara, Gaviar khal and Bolramer khal. Data has been collected from March-April and September-October of 2004. Concentrations have been measured using UV Spectrophotometer. Although the phosphate concentration has been found within the limit set by DOE for fishing, irrigation and recreational purposes, however ammonia-nitrogen has been found to exceed the limit.