What the surgeon of tomorrow needs to know about evidence-based surgery

Daily versus weekly evidence reports for orthopaedic surgeons in India: A mixed-methods study

BACKGROUND

There is a dearth of research regarding the impact of evidence-based medicine (EBM) tools, such as evidence summaries, in developing countries. The goals of this study were to: investigate accessibility, use, and impact of an online EBM knowledge dissemination portal in orthopaedic surgery in India; explore whether receiving daily targeted evidence summaries results in more frequent use of an EBM tool compared with receiving general weekly reports; and identify and explain the barriers and benefits of an online EBM resource in the Indian context.

METHODS

Forty-four orthopaedic surgeons in Pune, India, were provided free access to OrthoEvidence (OE), a for-profit, online EBM knowledge dissemination portal. Participants were subsequently randomized into 2 groups-1 group received daily targeted evidence summaries while the other received general weekly summaries. This study employed an explanatory sequential mixed methods design that incorporated 2 questionnaires, OE usage data, and semi-structured interviews to gain insight into the surgeons' usage, perceptions, and impact of OE.

RESULTS

There were no observable differences in OE usage between groups. OE was deemed to be comprehensive, practical, useful, and applicable to clinical practice by the majority of surgeons. The exit survey data revealed no differences between groups' perceptions of the OE tool. semi-structured interviews revealed barriers to keeping up with evidence that included limited access to relevant medical literature and limited incentive to keep up with current evidence.

CONCLUSIONS

Neither frequency of delivery (daily versus weekly) nor targeted versus general content affected the use of evidence summaries. Facilitating uptake of current evidence into clinical practice among Indian orthopedic surgeons may require additional components beyond dissemination of evidence summaries.

The Dedicated Orthopaedic Trauma Room Model: Adopting a New Standard of Care

The dedicated orthopaedic trauma room (DOTR) has emerged over the last decade as an effective approach to improving workflow while reducing the complications and costs that are associated with musculoskeletal trauma care. We surveyed the top 20 hospitals in the United States and found that 14 (70%) utilize a DOTR. Coupled with recent data on improved outcomes and patient flow, we see evidence that the availability of a DOTR has become a best practice for orthopaedic trauma care.

Is Bone Grafting Necessary in Opening Wedge High Tibial Osteotomy? A Meta-Analysis of Radiological Outcomes

Purpose

Bone grafting in opening wedge high tibial osteotomy (OWHTO) is still controversial. The purpose of this study is to compare the radiological outcomes of OWHTO with bone graft (autogenous, allogenous, and synthetic bone graft) and those without bone graft.

Materials and Methods

PubMed, MEDLINE, EMBASE and Cochrane Register of Studies databases were searched using specific inclusion and exclusion criteria for radiological studies involving OWHTO with bone graft and without bone graft groups. All reported delayed union, nonunion and correction loss were analyzed. Data were searched from the time period of January 2000 through July 2014. In addition, a modified Coleman methodology score (CMS) system was used to assess the methodological quality of the included studies.

Results

Twenty-five studies with a mean CMS value of 77 (range, 61 to 85 score) were included. In total, 1,841 patients underwent OWHTO using 4 different procedures for bone graft: autobone graft (n=352), allobone graft (n=547), synthetic bone graft (n=541) and no bone graft (n=401). There was a similar tendency for delayed union, nonunion and correction loss rate among the osteotomy space filling methods.

Conclusions

The meta-analysis showed there was a similar tendency for radiological union and correction maintenance among patients undergoing OWHTO regardless of the type of bone in all of the studies. However, the currently available evidence is not sufficient to strongly support the superiority of OWHTO with bone graft to OWHTO without bone graft.

Evidence-based medicine in plastic surgery: where did it come from and where is it going?

OBJECTIVES

Evidence-based medicine, particularly randomized controlled trials, influence many of the daily decisions within plastic surgery as well as nearly every other medical specialty, and will continue to play a larger role in medicine in the future. Even though it is certainly not a new idea, evidence-based medicine continues to remain a hot topic among members of the healthcare community. As evidence-based medicine continues to grow and evolve, it is becoming more important for all physicians to understand the fundamentals of evidence-based medicine: how evidence-based medicine has changed, and how to successfully incorporate it into the daily practice of medicine.

RESULTS

Admittedly, the wide acceptance and implementation of evidence-based medicine has been slower in surgical fields such as plastic surgery given the difficulty in performing large scale blinded randomized controlled trials due to the inherent nature of a surgical intervention as a treatment modality. Despite these challenges, the plastic surgery literature has recently begun to respond to the demand for more evidence-based medicine.

CONCLUSIONS

Today's plastic surgeons are making a concerted embrace evidence-based medicine by increasing the amount of out of high-level clinical evidence and should be encouraged to continue to further their endeavors in the field of evidence-based medicine in the future.

Duplex ultrasound screening for deep vein thrombosis in asymptomatic trauma patients: a survey of individual trauma surgeon opinions and current trauma center practices

BACKGROUND

Many national agencies have suggested that deep vein thrombosis (DVT) rates measure quality of hospital care. However, none provide recommendations for standardized screening. If screening practices vary among clinicians or hospitals, DVT rates could be biased-centers which perform more duplex ultrasounds report more DVTs. We hypothesized that trauma surgeons have varying opinions regarding duplex ultrasound screening for DVT in asymptomatic trauma patients, which result in varying practice patterns.

METHODS

We conducted two web-based surveys regarding the use of duplex ultrasound screening for DVT in asymptomatic trauma patients. The first (individual provider level) surveyed members of two national trauma surgery organizations (American Association for the Surgery of Trauma and Eastern Association for the Surgery of Trauma). The second (trauma center level) surveyed practice patterns of National Trauma Data Bank hospitals.

RESULTS

Three hundred seventeen individual surgeons completed surveys. There was wide variation in individual opinions regarding DVT screening in asymptomatic trauma patients (53% agree, 36% disagree, and 11% neither agree nor disagree). Two hundred thirteen National Trauma Data Bank hospitals completed surveys of which 28% (n=60) have a written guideline regarding DVT screening in asymptomatic trauma patients. The proportion of centers with a written protocol varied significantly by trauma center level (p<0.001) but not by teaching status. Opinions and practice patterns suggest that screening should start early and be performed weekly. The main risk factors used to suggest DVT screening are spinal cord injury and pelvic fracture.

CONCLUSIONS

There are wide variations in trauma surgeons' opinions and trauma centers' practices regarding duplex ultrasound screening for DVT in asymptomatic trauma patients. This variability combined with the fact that performing more duplex ultrasounds finds more DVTs may influence reported DVT rates. DVT rates alone are biased and not reflective of true quality of trauma care.

Clinical research in hand surgery

Clinical research designed to enhance the quality of health care has always received a great deal of national attention. Outcomes studies, clinical trials, and evidence-based research are key components of clinical research that have advanced the field of hand surgery. The purpose of the Weiland Award is to encourage innovations and progress in clinical research in hand surgery for the betterment of patients and to promote hand surgery's visibility in American medicine. This article will highlight my efforts in clinical research through 3 specific research themes: (1) outcomes research, (2) economic analysis, and (3) evidence-based research and quality assessment in health care.

Archie Cochrane and his vision for evidence-based medicine

Archibald (Archie) Cochrane's most influential mark on health care was his 1971 publication, Effectiveness and Efficiency. This book strongly criticized the lack of reliable evidence behind many of the commonly accepted health care interventions at the time. His criticisms spurred rigorous evaluations of health care interventions and highlighted the need for evidence in medicine. His call for a collection of systematic reviews led to the creation of The Cochrane Collaboration. Archie Cochrane was a visionary person who helped lay down much of the foundation for evidence-based medicine. This article introduces evidence-based medicine to plastic surgery by tracing its history to the seminal efforts by Archie Cochrane.

Total knee arthroplasty after high tibial osteotomy. A systematic review

Background

Previous osteotomy may compromise subsequent knee replacement, but no guidelines considering knee arthroplasty after prior osteotomy have been developed. We describe a systematic review of non-randomized studies to analyze the effect of high tibial osteotomy on total knee arthroplasty.

Methods

A computerized search for relevant studies published up to September 2007 was performed in Medline and Embase using a search strategy that is highly sensitive to find nonrandomized studies. Included were observational studies in which patients had total knee arthroplasty performed after prior high tibial osteotomy. Studies that fulfilled these criteria, were assessed for methodologic quality by two independent reviewers using the critical appraisal of observational studies developed by Deeks and the MINORS instrument. The study characteristics and data on the intervention, follow-up, and outcome measures, were extracted using a pre-tested standardized form. Primary outcomes were: knee range of motion, knee clinical score, and revision surgery. The grade of evidence was determined using the guidelines of the GRADE working group.

Results

Of the 458 articles identified using our search strategy, 17 met the inclusion criteria. Fifteen studies were cohort study with a concurrent control group, one was a historical cohort study and one a case-control study. Nine studies scored 50% or more on both methodological quality assessments. Pooling of the results was not possible due to the heterogeneity of the studies, and our analysis could not raise the overall low quality of evidence. No significant differences between primary total knee arthroplasty and total knee arthroplasty after osteotomy were found for knee range of motion in four out of six studies, knee clinical scores in eight out of nine studies, and revision surgery in eight out of eight studies after a median follow-up of 5 years.

Conclusion

Our analysis suggests that osteotomy does not compromise subsequent knee replacement. However, the low quality of evidence precludes solid clinical conclusions.

Medical errors and consequent adverse events in critically ill surgical patients in a tertiary care teaching hospital in Delhi

BACKGROUND

Medical errors and adverse events (AE), though common worldwide, have never been studied in India. We believe that though common these are under reported.

AIM

The aim of this study was to study medical errors and consequent AE in patients presenting with trauma and bowel perforation peritonitis.

METHODS

Five hundred and eighty-six consecutive patients with trauma or peritonitis, presenting to surgery emergency of UCMS-GTBH, were prospectively studied using review form (RF) 1 and 2. AE was defined as an outcome not expected to be part of the illness. RF 1 was filled for all and indicated if AE was present or not. RF2 was filled when RF 1 indicated presence of AE; it further confirmed the occurrence of AE and pointed to the type of medical error and resultant disability. All results were expressed as percentage.

RESULTS

There were 500 (85%) males. Mean age of the patients was 31 years. There were 332 patients with peritonitis and 254 with trauma. AE and its consequences were present in 185 (31.5%) and 183 (31.2%) patients, respectively. Consequences were as follows: disability - 157 (85%), increased hospital stay and/or increased visits in the OPD - 28 (15.3%) and both-101 (55.2%) patients. Disabilities were: death - 62 (40%), temporary disability - 90 (58%) and permanent disability - 05 (3.1%) patients. AE in 133 (71.8%) patients was definitely (level of confidence 6) due to error in healthcare management. All AE were considered preventable. Error of omission accounted for AE in 122 (65.9%) patients. System and operative errors were the commonest, 84.3% and 82.7%, respectively. One hundred and sixty-seven (90%) patients had multiple errors.

CONCLUSIONS

The study proves that medical errors and AE are a serious problem in our set-up and calls for immediate system improvement.

Evidence-based medicine: the fourth revolution in American medicine?

SUMMARY

The use of evidence has become a force in American medicine to improve the quality of health care. Funding decisions from payers will demand studies with high-level evidence to support many of the costly interventions in medicine. Plastic surgery is certainly not immune to this national tidal wave to revamp the health care system by embracing evidence-based medicine in our practices. In scientific contributions of plastic surgery research, application of evidence-based principles should enhance the care of all patients by relying on science rather than opinions. In this article, the genesis of evidence-based medicine is discussed to guide plastic surgery in this new revolution in American medicine.

Self-directed learning needs, patterns, and outcomes among general surgeons

INTRODUCTION

To explore the relationship between self-directed learning (SDL) needs, patterns, barriers, and outcomes among nonacademic general surgeons.

METHODS

Participants dictated details of SDL episodes associated with cancer patient management from October 2007 to March 2008. Transcripts were coded thematically. Frequencies were calculated for elements of each SDL stage. Statistical significance among subgroups was established with the use of the Pearson chi-square test, adjusted for clustering by surgeon. Participants were interviewed by telephone, and transcripts were analyzed by qualitative methods.

RESULTS

Of 21 consenting surgeons, 15 submitted 115 cases, and 108 were analyzed. Most involved breast (40.7%), colon (18.5%), or rectal cancer (13.0%); 2 or more clinical tasks (41.7%); and 2 or more questions (89.8%). Information was sought from the Internet (48.1%), colleagues (24.2%), or both (6.8%). Information was partially, or not relevant for 21.3% of cases. Evidence was new for 66.7%, and confirmed knowledge for 10.7% of cases. Learning helped surgeons formulate new (34.2%), or confirm original (16.5%) management plans, or determine that referral was appropriate (39.2%). Use of codified sources was associated with information retrieval (P < .05), and identifying new evidence leading to a change in management from that initially proposed (P < or = .001).

DISCUSSION

Numerous individual and systemic barriers may prevent practicing physicians from undertaking SDL, but provision of structured guidance prompted SDL and resulted in several beneficial outcomes. Further research is needed to validate these findings, and investigate who should support SDL, and how.

Challenges in multidisciplinary cancer care among general surgeons in Canada

Background

While many factors can influence the way that cancer care is delivered, including the way that evidence is packaged and disseminated, little research has evaluated how health care professionals who manage cancer patients seek and use this information to identify whether and how this could be supported. Through interviews we identified that general surgeons experience challenges in coordinating care for complex cancer patients whose management is not easily addressed by guidelines, and conducted a population-based survey of general surgeon information needs and information seeking practices to extend these findings.

Methods

General surgeons with privileges at acute care hospitals in Ontario, Canada were mailed a questionnaire to solicit information needs (task, importance), information seeking (source, frequency of and reasons for use), key challenges and suggested solutions. Non-responders received up to three reminder packages. Significant differences among sub-groups (age, setting) were examined statistically (Kruskal Wallis, Mann Whitney, Chi Square). Standard qualitative methods were used to thematically analyze open-ended responses.

Results

The response rate was 44.2% (170/385) representing all 14 health regions. System resource constraints (60.4%), comorbidities (56.4%) and physiologic factors (51.8%) were top-ranked issues creating information needs. Local surgical colleagues (84.6%), other local colleagues (82.2%) and the Internet (81.1%) were top-ranked sources of information, primarily due to familiarity and speed of access. No resources were considered to be highly applicable to patient care. Challenges were related to limitations in diagnostics and staging, operative resources, and systems to support multidisciplinary care, together accounting for 76.0% of all reported issues. Findings did not differ significantly by surgeon age or setting of care.

Conclusion

General surgeons appear to use a wide range of information resources but they may not address the complex needs of many cancer patients. Decision-making is challenged by informational and logistical issues related to the coordination of multidisciplinary care. This suggests that limitations in system capacity may, in part, contribute to variable guideline compliance. Further research is required to evaluate the appropriateness of information seeking, and both concurrent and consecutive mechanisms by which to achieve multidisciplinary care.

Knowledge and attitudes of trainee physicians regarding evidence-based medicine: a questionnaire survey in Tehran, Iran

RATIONALE, AIMS AND OBJECTIVES

Knowledge in evidence-based medicine (EBM) is increasingly becoming a core competence in medical education. We evaluated the trainee doctors' attitudes and knowledge of EBM to obtain the basis required for developing appropriate teaching and learning opportunities.

METHODS

Trainee physicians at a Tehran University hospital were surveyed. The questionnaire included six questions evaluating knowledge of EBM, the number of correct answers yielding the knowledge score, and eight questions evaluating attitudes towards EBM. Participants were also asked to mark on a 10-cm Visual Analogue Scale their use of various information sources and tendency to participate in EBM training courses.

RESULTS

The response rate was 80% (104/130). The mean knowledge score was 3 +/- 1.3 (SD) on a range of 0-6 for all respondents and was not significantly different between interns (2.9 +/- 1.4) and postgraduates (3.3 +/- 1.0). Forty one per cent of interns and 66% of postgraduates had a positive attitude towards EBM; the remaining respondents were neutral. Textbooks and consulting experts were the most, and Cochrane Library was the least, used sources of information among both interns and postgraduates. The knowledge score was not associated with attitude, but was higher in those with previous research experience, prior EBM training, or the postgraduates that read more articles. The postgraduates and those with prior EBM training showed a significantly more positive attitude towards EBM.

CONCLUSION

The present study demonstrates that the majority of trainee physicians at a Tehran University hospital lack adequate knowledge about basic concepts of EBM. Furthermore, most of them continue to use traditional sources of knowledge rather than evidence-based sources. On the positive side, there was an overall positive attitude towards EBM and the majority had a positive tendency to take part in EBM training courses.

The rules of evidence-based medicine: can they be generalized to improve GI surgical practice?

Evidence-based surgical practice (EBSP) must be integrated into the educational curriculum for all surgeons. Independent of the compelling need for best practice, there are at least three compelling drivers: the exploding cost of health care demands evidence-based practice, patient safety is best supported by best evidence, and the medico-legal environment uses EBSP to pursue its goals.

Computerized clinical decision support: a technology to implement and validate evidence based guidelines

Faced with a documented crisis of patients not receiving appropriate care, there is a need to implement and refine evidence-based guidelines (EBGs) to ensure that patients receive the best care available. Although valuable in content, among their deficiencies, EBGs do not provide explicit methods to bring proven therapies to the bedside. Computerized information technology, now an integral part of the US healthcare system at all levels, presents clinicians with information from laboratory, imaging, physiologic monitoring systems, and many other sources. It is imperative that we clinicians use this information technology to improve medical care and efficacy of its delivery. If we do not do this, nonclinicians will use this technology to tell us how to practice medicine. Computerized clinical decision support (CCDS) offers a powerful method to use this information and implement a broad range of EBGs. CCDS is a technology that can be used to develop, implement, and refine computerized protocols for specific processes of care derived from EBGs, including complex care provided in intensive care units. We describe this technology as a desirable option for the trauma community to use information technology and maintain the trauma surgeon/intensivist's essential role in specifying and implementing best care for patients. We describe a process of logical protocol development based on standardized clinical decision making to enable EBGs. The resulting logical process is readily computerized, and, when properly implemented, provides a stable platform for systematic review and study of the process and interventions.

CONCLUSION

: CCDS to implement and refine EBG derived computerized protocols offers a method to decrease variability, test interventions, and validate improved quality of care.

Adapting to the changing paradigm of management of colon injuries

BACKGROUND

Based on the evolution that the management of colonic trauma has undergone since the early 1990s, we hypothesized that the use of diversion has decreased at our institution over the last decade.

METHODS

A retrospective review was performed of all patients who presented to our trauma center with colon injuries between 1995 and 2006.

RESULTS

A total of 81 patients were analyzed. Twenty-five patients (31%) were treated with diversion and 56 patients (69%) underwent primary repair or resection with anastomosis. The rate of diversion in the first half of the study period as well as the second half of the study period was 31%. There was no difference in the complication rates.

CONCLUSIONS

The usage of diversion remains higher than current literature would indicate. As a result, we are implementing a program that will actively encourage our trauma surgeons to improve the quality of patient care by incorporating evidence-based medicine into clinical practice.

The effect of high tibial osteotomy on the results of total knee arthroplasty: a matched case control study

Background

We performed a matched case control study to assess the effect of prior high tibia valgus producing osteotomy on results and complications of total knee arthroplasty (TKA).

Methods

From 1996 until 2003 356 patients underwent all cemented primary total knee replacement in our institution. Twelve patients with a history of 14 HTO were identified and matched to a control group of 12 patients with 14 primary TKA without previous HTO. The match was made for gender, age, date of surgery, body mass index, aetiology and type of prosthesis. Clinical and radiographic outcome were evaluated after a median duration of follow-up of 3.7 years (minimum, 2.3 years). The SPSS program was used for statistical analyses.

Results

The index group had more perioperative blood loss and exposure difficulties with one tibial tuberosity osteotomy and three patients with lateral retinacular releases. No such procedures were needed in the control group. Mid-term HSS, KSS and WOMAC scores were less favourable for the index group, but these differences were not significant. The tibial slope of patients with prior HTO was significantly decreased after this procedure. The tibial posterior inclination angle was corrected during knee replacement but posterior inclination was significantly less compared to the control group. No deep infection or knee component loosening were seen in the group with prior HTO.

Conclusion

We conclude that TKA after HTO seems to be technically more demanding than a primary knee arthroplasty, but clinical outcome was almost identical to a matched group that had no HTO previously.

Patient Safety and Quality in Surgery

Patient safety and quality of care are inextricably linked. Surgery encompasses such a wide spectrum of diagnosis, treatment, postoperative care, and outpatient follow-up of so many illnesses that quality improvement and patient safety opportunities are numerous and potentially overwhelming. The study of error can be applied across all components of the care process, and offers many points of study to improve patient safety. A fundamental premise is that appropriate and safely delivered health care is less expensive. In our current climate, this emphasis on quality and safety will remain a high priority. Surgeon leadership at all levels is key to our professional viability.

Evidence and experience: what is the balance in surgeons' training?

Surgeons' training requires professionalism, continuing medical education, and appropriate environment to ensure the desirable success. However, generally, this goal is pursued in an inefficient way, based upon intensive training skills founded in the age-old philosophy of "the way I have learned it". There is, usually, a lack of patient outcome evaluation, especially of long-term follow-up of surgical procedures, which in turns provide little evidence of senior surgeons for adequate training junior surgeons. On the other hand, questioning the established knowledge is not stimulated, or even not tolerated by the seniors. It seems like the "truth" is absolute and allows no change for the new knowledge, which would mean no additional progress. There is a need to significantly alter the implementation of new knowledge, if possible based on evidence, to ensure the best medical care for the surgical patient. Experimental surgery, and nowadays bench model surgery, may be useful in minimizing the predictable complications of patients under the surgeon training responsibility, while on learning curve. Surgery based on evidence should be one of the tools for improving patient surgical care, since this important branch of medical activity must rest on two pillars "art and science"; and surgeon in good training needs to be close to both.

The role of collegial interaction in continuing professional development

INTRODUCTION

Many physicians seek information from colleagues over other sources, highlighting the important role of interaction in continuing professional development (CPD). To guide the development of CPD opportunities, this study explored the nature of cancer-related questions faced by general surgeons, and how interaction with colleagues addressed those questions.

METHODS

This study involved thematic analysis of field notes collected through observation and transcripts of telephone interviews with 20 surgeons, two pathologists, one medical oncologist, and one radiation oncologist affiliated with six community hospitals participating in multidisciplinary cancer conferences by videoconference in one region of Ontario, Canada.

RESULTS

Six multidisciplinary cancer conferences (MCCs) were observed between April and September 2006, and 11 interviews were conducted between December 2006 and January 2007. Sharing of clinical experience made possible collective decision making for complex cancer cases. Physicians thought that collegial interaction improved awareness of current evidence, patient satisfaction with treatment plans, appropriate care delivery, and continuity. By comparing proposed treatment with that of the group and gaining exposure to decision making for more cases than they would see in their own practices, physicians developed clinical expertise that could be applied to future cases. Little collegial interaction occurred outside these organized sessions.

DISCUSSION

These findings highlight the role of formally coordinated collegial interaction as an important means of CPD for general surgeons. Investment may be required for infrastructure to support such efforts and for release of health professional time for participation. Further research is required to examine direct and indirect outcomes of collegial interaction.