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At least 19 recordsLinked to original sources
PubMed2006

Analysis of surgical errors in closed malpractice claims at 4 liability insurers.

BACKGROUND: The relative importance of the different factors that cause surgical error is unknown. Malpractice claim file analysis may help to identify leading causes of surgical error and identify opportunities for prevention. METHODS: We retrospectively reviewed 444 closed malpractice claims, from 4 malpractice liability insurers, in which patients alleged a surgical error. Surgeon-reviewers examined the litigation file and medical record to determine whether an injury attributable to surgical error had occurred and, if so, what factors contributed. Detailed descriptive information concerning etiology and outcome was recorded. RESULTS: Reviewers identified surgical errors that resulted in patient injury in 258 of the 444 (58%) claims. Sixty-five percent of these cases involved significant or major injury; 23% involved death. In most cases (75%), errors occurred in intraoperative care; 25% in preoperative care; 35% in postoperative care. Thirty-one percent of the cases had errors occurring during multiple phases of care; in 62%, more than 1 clinician played a contributory role. Systems factors contributed to error in 82% of cases. The leading system factors were inexperience/lack of technical competence (41%) and communication breakdown (24%). Cases with technical errors (54%) were more likely than those without technical errors to involve errors in multiple phases of care (36% vs 24%, P = .03), multiple personnel (83% vs 63%, P < .001), lack of technical competence/knowledge (51% vs 29%, P < .001) and patient-related factors (54% vs 33%, P = .001). CONCLUSIONS: Systems factors play a critical role in most surgical errors, including technical errors. Closed claims analysis can help to identify priority areas for intervening to reduce errors.

Adolescent↗
PubMed1996

In vitro femoral stiffness after femoral neck osteotomy and osteosynthesis with defined surgical errors.

In our search for an osteosynthesis device that would tolerate the surgical errors of the inexperienced surgeon, we tested in vitro femoral stiffness in 75 human osteoporotic femora after internal fixation of a cervical neck osteotomy using three commonly used devices: two von Bahr screws (A. Ericsson AB, Sweden), two cannulated screws (Uppsala type, Olmed AB, Sweden), and two hookpins (LiH, PSAB, Sweden). The first device has its main grip in the cancellous bone by threads; the second has grip in cancellous and subchondral bone by threads; and the third, which has no threads, has its grip in cancellous bone by a hook pin. The intact specimen was in all instances stiffer (22-63%) than the osteosynthesized specimen (p < 0.001). An osteosynthesized femur with perfectly reduced bone ends was 14-23% stiffer than when reduction of the bone ends was insufficient, irrespective of device malposition (p < 0.001). Insufficient reduction of the osteotomy leaving a 20 degrees dorsal angulation of the femoral head combined with too far ventrally placed screws resulted in the lowest femoral stiffness. If reduction of osteotomy was sufficient, screws placed too far ventrally or converging screws did not result in decreased stiffness compared with optimal screw placement. Irrespective of the quality of reduction, osteosynthesis with the Uppsala screw resulted in all instances in a higher stiffness than using the other devices (p < 0.01). With the Uppsala screw design, femoral stiffness after optimal osteosynthesis was reduced by 22% compared with the intact femur, and in the most unfavorable position with combined malreduction and malpositioning it was reduced by 42%. Corresponding values for the von Bahr screws were 29% and 46%, respectively, and for the LiH screws 47% and 63%, respectively. Use of a device with threads and grip in the subchondral bone is recommended for fixation of femoral neck fractures in osteoporotic bone. Furthermore, the importance of anatomical reduction for fracture fixation is emphasized.

Aged↗
PubMed2003

Using human reliability analysis to detect surgical error in endoscopic DCR surgery.

The aim of this study was to describe the nature of active skill-based errors occurring in endoscopic dacrocystorhinostomy (DCR) surgery. A human reliability analysis methodology was used to assess surgical error from observational capture data. Twelve endoscopic DCR operations performed by three different surgical trainees were video recorded. The steps (subtasks) of each operation were carefully analysed and common errors were documented. Specific errors that resulted in trauma to the nasal mucosa were noted. Execution errors were common, with errors of grasping being most frequent (67% of all execution errors). Most of these involved the Blakesley forceps. In total, there were 69 mucosal trauma hits. Inserting instruments into or withdrawing them from the nasal cavity with too much force or speed caused more than half of these. Incising with too much force resulting in 'overshoot' caused 34% of mucosal trauma. Trainee ENT surgeons should take particular care when inserting or withdrawing instruments from the nasal cavity and also when performing lacrimal sac or nasal mucosa incisions. Performance of these tasks with too much force was identified as a common and potentially avoidable cause of mucosal trauma. Further research is needed into the design and use of endoscopic sinus surgery instruments with the aim of avoiding the errors that were encountered.

Dacryocystorhinostomy↗
PubMed1999

Complications after carotid endarterectomy are related to surgical errors in less than one-fifth of cases. Swedvasc--The Swedish Vascular Registry and The Quality Committee for Carotid Artery Surgery.

OBJECTIVES: to study possible relations between indications, contraindications and surgical technique and stroke and/or death within 30 days of carotid endarterectomy (CEA). DESIGN: analysis of hospital records for patients identified in a national vascular registry. METHOD: during 1995-1996, 1518 patients were reported to the Swedish Vascular Registry - Swedvasc. Among these the sixty-five with a stroke and/or death within 30 days were selected for study. Complete surgical records were reviewed by three approved reviewers using predetermined criteria for indications and possible errors. RESULTS: an error of surgical technique or postoperative management was found in eleven patients (17%). In six cases (9%) the indication was inappropriate or there was an obvious contraindication. The indication was questionable in fourteen (21.5%). Half of the patients (52.5%) had surgery for an appropriate indication, and no contraindication or error in surgical technique or management was identified. CONCLUSION: more than half the complications of CEA represent the "method cost", i.e. the indication, risk and surgical technique were correct. However, the stroke and/or death rate might be reduced if all operations conformed to agreed criteria.

Aged↗
PubMed2003

The surgical error examination is a novel method for objective technical knowledge assessment.

BACKGROUND: Objective analysis of surgical skill is necessary. A novel method of assessment using simple error analysis in synthetic models is examined for construct validity. METHODS: Two examination protocols were devised using synthetic models. These contained either a purpose made error or were representative of good surgical practice. Protocol one contained models of skin closure and minor operations. Protocol two in addition more complex procedures. Face validity was established by the approval of senior surgeons. Junior surgeons were recruited to undertake the assessment. A p value of less than 0.05 was deemed to be significant. RESULTS: Eighty-nine surgeons were recruited. Both protocol one and two were able to discriminate between groups at statistically significant levels. CONCLUSIONS: Construct validity has been established by showing that error analysis is able to distinguish surgeons with varying levels of experience.

Clinical Competence↗
PubMed2005

The nature of surgical error: a cautionary tale and a call to reason.

Errors and "patient safety" have taken on monumental importance for surgery. Like all things new, there is an initial over-reaction before a return to a balanced perspective. The current response to the global interest in error has been to seize on the latest reports that are focusing on the "systemic nature" of errors, which is also being referred to as "the new look." There has been an unintentional ignoring of the actual error, referred to as the coface error, that the surgeon commits. It is time to put the approach to errors into perspective and redefine errors within the context of the surgical community, which can result in a balance of the surgeon's position in regard to systemic and personal responsibility.

Humans↗
PubMed2005

Correlating motor performance with surgical error in laparoscopic cholecystectomy.

BACKGROUND: Analysis of motor performance in minimally invasive surgery (MIS) is a new field with applications in surgical training, surgical simulators, and robotics. Force/torque and derivatives of tool tip position (velocity, acceleration, and jerk) are examples of measures of motor performance (MMPs). Few studies have measured MMPs or have correlated MMPs with surgical performance during MIS on humans. The objectives of this study were to determine the feasibility of a novel multimodal system to quantify MMPs in laparoscopic cholecystectomy and to attempt to correlate MMPs with the magnitude of error as a measure of surgical performance. METHODS: Novice and expert surgeons performed laparoscopic cholecystectomies in two groups of three patients each. MMPs were obtained using a combination of optical and electromagnetic tool tip tracking and a force/torque sensor on a modified Maryland dissector. Error scores for laparoscopic cholecystectomy were calculated using a previously validated system. Novice and expert measurements were compared, and correlations were made between error scores and MMPs. RESULTS: Error scores were similar between novices and experts. Novice surgeons had a significantly greater mean velocity (566 +/- 83 vs 85 +/- 32 mm/s, p = 0.006) and acceleration (2,600 +/- 760 vs 440 +/- 174 mm/s2, p = 0.050) compared to expert surgeons. Force (16.5 +/- 4.6 vs 18.3 +/- 6.0 N, p = 0.829), position (121 +/- 25 vs 135 +/- 72 mm, p = 0.863), and jerk (19,600 +/- 7,410 vs 2,430 +/- 367 mm/s3, p = 0.138) were similar between groups. A positive correlation was found in novice surgeons between error score and jerk (Pearson correlation, 0.999; p = 0.035). CONCLUSIONS: It is feasible to quantify MMPs in laparoscopic cholecystectomy. Novice and expert surgeons can be differentiated by MMPs; moreover, there may be a positive correlation between jerk and error score in novice surgeons.

Adult↗
PubMed2005

Identification and reduction of surgical error using simulation.

In recent years, the question of medical errors has received increasing attention. To minimize or avoid errors, it is important to understand both the error itself and the factors leading up to it, as well as the type of error that has been committed. Simulators, which have gained increasing importance in surgical training, can also be useful to "teach" errors, learn from them and develop strategies to avoid them - all of this in a safe environment free from any risk for patients. In this contribution, the nature of errors and their role in simulator training are discussed in detail.

Journal Article↗
PubMed1978

[Avoidable surgical errors in hallux valgus surgery according to Brandes (author's transl)].

In postoperative follow-ups in a large number of patients who underwent Hallus valgus surgery according to Brandes, residual pain was found due to insufficient resection of the proximal phalanx. It is pointed out that the results of this frequent and beneficial Hallux valgus surgery can be improved by using a more subtile surgical technique. Figs. 1-5 show that errors continue to be made. If these errors can be avoided in the future this report will have fulfilled its purpose.

Hallux Valgus↗
PubMed1988

[Surgery of varicose veins. Surgical errors and complications].

It is necessary to distinguish between complications that cannot be avoided and those that can through knowledge of the special risks of the surgical procedure. Special complications that cannot be avoided include bleeding in the saphenous channel, loss of sensitivity, damage of lymphatic vessels, pigmentation of the leg, and the very rare postoperative pulmonary embolization. A preoperative diagnosis based on a careful physical examination, phlebography and Doppler ultrasound will help avert unnecessary mistakes.

Humans↗