Pulling together and pulling apart: influences of convergence and divergence on distributed healthcare teams.

Effective healthcare requires both competent individuals and competent teams. With this recognition, health professions education is grappling with how to factor team competence into training and assessment strategies. These efforts are impeded, however, by the absence of a sophisticated understanding of the the relationship between competent individuals and competent teams . Using data from a constructivist grounded theory study of team-based healthcare for patients with advanced heart failure, this paper explores the relationship between individual team members' perceived goals, understandings, values and routines and the collective competence of the team. Individual interviews with index patients and their healthcare team members formed Team Sampling Units (TSUs). Thirty-seven TSUs consisting of 183 interviews were iteratively analysed for patterns of convergence and divergence in an inductive process informed by complex adaptive systems theory. Convergence and divergence were identifiable on all teams, regularly co-occurred on the same team, and involved recurring themes. Convergence and divergence had nonlinear relationships to the team's collective functioning. Convergence could foster either shared action or collective paralysis; divergence could foster problematic incoherence or productive disruption. These findings advance our understanding of the complex relationship between the individual and the collective on a healthcare team, and they challenge conventional narratives of healthcare teamwork which derive largely from acute care settings and emphasize the importance of common goals and shared mental models. Complex adaptive systems theory helps us to understand the implications of these insights for healthcare teams' delivery of care for the complex, chronically ill.

Five year review of the Rotaglide total knee arthroplasty.

In this study we present the outcome for patients with the Rotaglide mobile meniscal knee prosthesis implanted for osteoarthritis. All patients reviewed had this prosthesis implanted as a primary total knee Arthroplasty in Crosshouse Hospital. The minimum follow-up period was 5 years (range 5-8.2). Patients were assessed clinically by the junior author (C.W.) and results were standardised using the Hospital for Specialist Surgery (HSS) knee score. Standard radiographs were taken in antero-posterior and lateral planes to assess for loosening using the Knee Society roentgenographic system. Case notes were then examined for evidence of peri and post-operative problems. Sixty-seven patients (71 knees) were reviewed. Ninety-four percent of patients had an excellent clinical outcome with HSS scores of 85 or more. Two knees were revised, one for meniscal fracture and one for meniscal dislocation. Both of these failures were early in our series and in a total of 312 knees to date there have been no other meniscal failures. No knees were revised for aseptic loosening and there have been no deep infections. We feel this prosthesis offers a safe and effective treatment for osteoarthritis with a good clinical outcome at 5 years with a low level of complications.

Utilisation of bone allograft by orthopaedic surgeons in Scotland.

The use of bone allograft in orthopaedic surgery has been predicted to increase, particularly in joint revision surgery. This has led to a potential problem with supply. Questionnaires were distributed to all 146 Consultant Orthopaedic surgeons working in Scotland in 2000. They were asked to indicate their current usage of bone and tissue allograft, any problems encountered with supply and if alternatives to allograft, such as processed bone, might be used. The questions asked were very similar to those asked in a previous study in 1995 to enable comparisons to be made. Replies were received from 125 Consultants (87%) of whom 93 reported using bone allograft. Forty-one consultants (46%) predicted an increase in their requirement for bone allograft, and 23 (26%) felt they could currently use more bone if this was available. Sixty percent of surgeons would consider using processed bone as an alternative. In comparison with figures from 1995, an increasing number of surgeons are prepared to use processed bone as an alternative to fresh frozen allograft.

Effect of ethinyl estradiol on the panic response to the panicogenic agent pentagastrin.

BACKGROUND: Panic disorder (PD) symptomatology has been reported to be altered by hormonal events or treatments which affect estrogen levels. Coryell et al. [Arch. Gen. Psychiatry, 39 (1982) 701-703; Am. J. Psychiatry, 143 (1986) 508-510] have suggested that the increased cardiovascular risk associated with PD is significantly greater in males, alluding to a potential cardioprotective effect of female hormones in the context of panic attacks. In the present study, we were, therefore, interested in elucidating the role of estrogen in modulating the behavioural and cardiovascular responses induced by the panicogenic agent pentagastrin, a cholecystokinin-B (CCK(B)) receptor agonist. METHODS: A double-blind cross-over placebo-controlled design with randomization of the order of a 3-day pretreatment of ethinyl estradiol (EE) (50 microg/day) or placebo was used to assess the effect of a 30-microg i.v. bolus injection of pentagastrin on panic symptom intensity and on increases in heart rate (DeltaHR), systolic (DeltaSBP) and diastolic (DeltaDBP) blood pressure following each pretreatment. Subjects were 9 male healthy controls and 11 male PD patients. RESULTS: EE pretreatment did not significantly reduce the pentagastrin-induced panic symptom scale (PSS) scores and had no effect on DeltaDBP or DeltaSBP. EE did, however, attenuate the pentagastrin-induced increase in HR in both PD patients and healthy controls. LIMITATIONS: Only male subjects were included in the present study; however, we are currently investigating the influence of female gonadal hormones on the panic response to pentagastrin in female PD patients and healthy controls. CONCLUSION: Our results suggest that estrogens may display cardioprotective effects in the context of panic attacks.

Effect of medroxyprogesterone pretreatment on pentagastrin-induced panic symptoms in females with panic disorder.

Clinical observation, as well as epidemiological and research data, suggest that female gonadal hormones influence the course of panic disorder (PD). Panicogenic agents such as pentagastrin are useful tools with which to study the pathophysiology of panic attacks. Nine women with PD were randomly assigned to receive, in a crossover design, a 3-day pretreatment with medroxyprogesterone acetate (MP) prior to an injection of pentagastrin, and a 3-day pretreatment with a placebo prior to another injection of pentagastrin. The panic response and the anxiety response to pentagastrin were decreased after MP pretreatment. These preliminary results support the use of laboratory models for investigations of the interactions between progestins and anxiety.

Caveat surgeon: do orthopaedic surgeons take adequate precautions against blood-borne viral infections, in particular the human immunodeficiency virus (HIV)?

One year ago the British Orthopaedic Association issued guidelines for the prevention of cross-infection with special reference to HIV and the hepatitis viruses. We were interested to establish whether the guidelines were being widely applied and whether they had changed general orthopaedic practice. We distributed a questionnaire to Scottish Orthopaedic Fellows, Associates of the BOA, and orthopaedic trainees. With a 70 per cent return rate, it would appear that the recommendations are not adhered to in full. Of respondents, 84 per cent were immunized or undergoing immunization against hepatitis B. In all, 30 per cent were operating on high-risk patients on a monthly basis, 60 per cent thought that their current practice was low risk, and only 15 per cent thought that their future practice would be high risk; 81 per cent were concerned and yet only 60 per cent had altered their practice. It is of some concern that orthopaedic surgeons may not take the threat of HIV cross-infection seriously enough and do not consider precautions mandatory. Further pressure and support from the BOA may be necessary to encourage a change in orthopaedic practice as the threat of HIV is increasing.

Unnecessary arthroscopies.

A review of the results of arthroscopies on patients taken from an 'open access' service waiting list has been carried out. One-third of all arthroscopies proved to be negative. Accuracy of clinical diagnosis was not related to the clinical grade of the examining doctor. The excess annual cost to the Northern Ireland Orthopaedic Service of unnecessary arthroscopies may have been of the order of 89,000 pounds.

Delayed diagnosis of injuries from the M1 aircraft accident. The Nottingham, Leicester, Derby, Belfast Study Group.

The incidence of a delay in the diagnosis of injuries from the 83 survivors of the M1 aircraft accident is described. A total of 32 injuries in 25 patients were not initially diagnosed, nine each in the upper and lower limbs and 14 in the spine. This was equivalent to 9.6 per cent of all the major injuries suffered by the survivors. Five patients required surgery for a late diagnosed injury. The incidence of a delayed diagnosis injury (DDI) was not related to the overall severity of injury. Delay in diagnosis of injuries after such a major accident was attributable to failure of clinical examination, failure to radiograph symptomatic areas and failure of radiographic interpretation.

Survivors of the M1 aircrash. Outcome of injuries after 1 year. The Nottingham, Leicester, Derby and Belfast Study Group.

The 79 survivors of the M1 aircrash have been assessed at an average of great britain 1 year after the accident. Return to work, continued hospital care and recovery from injuries has been found to be related to the severity of injury. The 188 pelvic and limb fractures have been reviewed and the incidence of complications from these injuries has been low. Spinal and lower limb injuries account for the majority of the residual disability.

Initial management of open fractures sustained in the M1 aircraft disaster. Nottingham, Leicester, Derby and Belfast (NLDB) Study Group.

There were 83 survivors of the M1 aircrash admitted to hospital; of these, 28 patients sustained a total of 40 open fractures. These open fractures were classified as 19 grade 3, 16 grade 2 and five grade 1. There were six upper limb fractures and 34 lower limb fractures. A high proportion of grade 3 open fractures were identified in this series (47 per cent) and one-half of these occurred at or below the ankle. This reflected the high energy and direction of the forces involved in the aircrash. The early results in terms of the incidence of wound infection (15 per cent), delayed wound healing (7.5 per cent) and skin flap necrosis (7.5 per cent) were similar to other series. The controversy over whether to leave grade 3 wounds open or closed was not clarified by this study, but the closure of grade 3 wounds after internal fixation is to be avoided. This study emphasizes the need for provision of adequate specialist manpower, equipment and resources to manage the unexpected major disaster successfully.

Simultaneous bilateral fractures of the femoral neck.

An 80-year-old woman suffered bilateral simultaneous fractures of her hips. This is the first reported case in the elderly. Both hips were replaced by Thompson hemi-arthroplasties at the same operation, and the patient was discharged home.

Isolated dislocation of the radial head: a report of two cases.

Two cases of isolated dislocation of the radial head in children are presented. The clinical presentation, radiographic appearances, management and prognosis are discussed, and a brief literature review is presented.