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1.
N Engl J Med ; 388(3): 203-213, 2023 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-36652352

RESUMO

BACKGROUND: Clinical guidelines recommend low-molecular-weight heparin for thromboprophylaxis in patients with fractures, but trials of its effectiveness as compared with aspirin are lacking. METHODS: In this pragmatic, multicenter, randomized, noninferiority trial, we enrolled patients 18 years of age or older who had a fracture of an extremity (anywhere from hip to midfoot or shoulder to wrist) that had been treated operatively or who had any pelvic or acetabular fracture. Patients were randomly assigned to receive low-molecular-weight heparin (enoxaparin) at a dose of 30 mg twice daily or aspirin at a dose of 81 mg twice daily while they were in the hospital. After hospital discharge, the patients continued to receive thromboprophylaxis according to the clinical protocols of each hospital. The primary outcome was death from any cause at 90 days. Secondary outcomes were nonfatal pulmonary embolism, deep-vein thrombosis, and bleeding complications. RESULTS: A total of 12,211 patients were randomly assigned to receive aspirin (6101 patients) or low-molecular-weight heparin (6110 patients). Patients had a mean (±SD) age of 44.6±17.8 years, 0.7% had a history of venous thromboembolism, and 2.5% had a history of cancer. Patients received a mean of 8.8±10.6 in-hospital thromboprophylaxis doses and were prescribed a median 21-day supply of thromboprophylaxis at discharge. Death occurred in 47 patients (0.78%) in the aspirin group and in 45 patients (0.73%) in the low-molecular-weight-heparin group (difference, 0.05 percentage points; 96.2% confidence interval, -0.27 to 0.38; P<0.001 for a noninferiority margin of 0.75 percentage points). Deep-vein thrombosis occurred in 2.51% of patients in the aspirin group and 1.71% in the low-molecular-weight-heparin group (difference, 0.80 percentage points; 95% CI, 0.28 to 1.31). The incidence of pulmonary embolism (1.49% in each group), bleeding complications, and other serious adverse events were similar in the two groups. CONCLUSIONS: In patients with extremity fractures that had been treated operatively or with any pelvic or acetabular fracture, thromboprophylaxis with aspirin was noninferior to low-molecular-weight heparin in preventing death and was associated with low incidences of deep-vein thrombosis and pulmonary embolism and low 90-day mortality. (Funded by the Patient-Centered Outcomes Research Institute; PREVENT CLOT ClinicalTrials.gov number, NCT02984384.).


Assuntos
Anticoagulantes , Aspirina , Quimioprevenção , Fraturas Ósseas , Heparina de Baixo Peso Molecular , Adulto , Humanos , Pessoa de Meia-Idade , Anticoagulantes/efeitos adversos , Anticoagulantes/uso terapêutico , Aspirina/efeitos adversos , Aspirina/uso terapêutico , Quimioprevenção/métodos , Extremidades/lesões , Fraturas Ósseas/complicações , Fraturas Ósseas/mortalidade , Hemorragia/etiologia , Heparina de Baixo Peso Molecular/efeitos adversos , Heparina de Baixo Peso Molecular/uso terapêutico , Fraturas do Quadril/complicações , Fraturas do Quadril/mortalidade , Ossos Pélvicos/lesões , Ensaios Clínicos Pragmáticos como Assunto , Embolia Pulmonar/etiologia , Embolia Pulmonar/prevenção & controle , Fraturas da Coluna Vertebral/complicações , Fraturas da Coluna Vertebral/mortalidade , Tromboembolia Venosa/etiologia , Tromboembolia Venosa/prevenção & controle , Tromboembolia Venosa/tratamento farmacológico , Trombose Venosa/etiologia , Trombose Venosa/prevenção & controle
2.
Eur J Orthop Surg Traumatol ; 34(3): 1701-1705, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38055057

RESUMO

Postoperative surgical site infections remain a significant and prevalent complication after open reduction and internal fixation of acetabular fractures. Local antibiotics have been shown to decrease risk of postoperative infection, although recent evidence is conflicting. We provide a consistent and replicable technique for delivering intraoperative broad-spectrum antibiotics in the form of a putty applied directly to surgical implants. With this technique, systemic levels of those antibiotics remain safe and stable.


Assuntos
Antibacterianos , Fraturas do Quadril , Humanos , Antibacterianos/uso terapêutico , Estudos Retrospectivos , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/métodos , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/prevenção & controle , Fraturas do Quadril/cirurgia , Acetábulo/cirurgia , Resultado do Tratamento
3.
Eur J Orthop Surg Traumatol ; 34(4): 1845-1850, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38431894

RESUMO

OBJECTIVES: Malnutrition has been shown to increase complications and leads to poor outcomes in surgical patients, but it has not been studied extensively in orthopedic trauma. This study's purpose is to determine the perspective and assessment of nutrition by orthopedic traumatologists. METHODS: A survey was created and distributed via REDCap to orthopedic traumatologists at 60 U.S. trauma centers. Out of 183 distributed surveys, 130 surgeons completed the survey (71%). The survey focused on the importance of nutrition and practice patterns in orthopedic trauma. RESULTS: Seventy-five percent of surgeons thought that nutritional status was "very important" to the final outcome of patients with orthopedic trauma injuries, 24% responded "somewhat important" and 1% responded "not important." Furthermore, 88% perform nutritional assessments; most surgeons (77%) utilize nutritional laboratory markers, with the most common markers being albumin, pre-albumin, transferrin and CRP. Additionally, 42% think trending the laboratory markers is important, and 50% are not sure if nutrition markers should be tested at multiple time points. Despite 75% of surgeons believing that nutrition is very important, only 8% discuss it with patients routinely. When asked what is more important for outcomes, nutrition or Vitamin D, almost three times as many surgeons thought nutrition was more important (29% vs 11%, respectively). CONCLUSIONS: While orthopedic traumatologists believe nutrition is an important determinant of patient outcomes, this study shows a clear lack of consensus and variability in practice regarding nutrition among surgeons. Orthopedic trauma surgeons need specific guidelines on how to assess and treat malnutrition in trauma patients.


Assuntos
Desnutrição , Avaliação Nutricional , Estado Nutricional , Humanos , Desnutrição/diagnóstico , Desnutrição/etiologia , Padrões de Prática Médica/estatística & dados numéricos , Inquéritos e Questionários , Atitude do Pessoal de Saúde , Biomarcadores/sangue , Estados Unidos , Procedimentos Ortopédicos , Albumina Sérica/análise , Ferimentos e Lesões/cirurgia , Ferimentos e Lesões/complicações , Proteína C-Reativa/análise
4.
Instr Course Lect ; 72: 517-541, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36534877

RESUMO

Talar fractures and pantalar dislocations are usually the results of high-energy trauma. Dislocations and open injuries are managed urgently. Temporary stabilization with splinting, Kirschner wires, or external fixation may be performed until the soft tissues are ready for definitive fixation. A CT scan is critical to identify all injuries and is helpful in planning treatment including reduction of dislocations and definitive fixation. Lateral and posterior process fractures are often missed initially and require a high index of suspicion.


Assuntos
Fraturas Ósseas , Luxações Articulares , Tálus , Humanos , Tálus/lesões , Fraturas Ósseas/cirurgia , Fixação Interna de Fraturas/métodos , Tomografia Computadorizada por Raios X , Fios Ortopédicos , Luxações Articulares/cirurgia
5.
J Surg Orthop Adv ; 32(3): 156-159, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38252600

RESUMO

Tibial plateau fractures are a common injury treated by orthopaedic trauma surgeons. Depression of the articular surface of the tibial plateau is often an associated injury pattern. The methods used to address depressed tibial plateau fractures can vary, as it has yet to be determined if the type of bone void filler utilized affects the long-term functional outcomes of patients with tibial plateau fractures. A 28-question survey was created to better elucidate the current practices used by orthopaedic surgeons and the factors influencing the selection of bone void fillers for treatment of these injuries. The survey was distributed online to Orthopaedic Trauma Association (OTA) members. There were 106 orthopaedic surgeons that completed the survey with a wide range of responses. The survey determined the current practice of orthopaedic surgeons varies widely when selecting bone void fillers in the treatment of depressed tibial plateau fractures. (Journal of Surgical Orthopaedic Advances 32(3):156-159, 2023).


Assuntos
Cirurgiões Ortopédicos , Ortopedia , Fraturas da Tíbia , Fraturas do Planalto Tibial , Humanos , Fraturas da Tíbia/cirurgia , Tíbia
6.
Eur J Orthop Surg Traumatol ; 33(4): 1209-1216, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-35536488

RESUMO

PURPOSE: To estimate survival of acetabular fracture repair by tracking patients across healthcare encounters. We hypothesized that hip survival estimated this way would be lower than reported by single-surgeon or single-center series not capturing censored reoperations. METHODS: Retrospective health insurance administrative database cohort study. All claimed healthcare encounters for employer-sponsored health insurance beneficiaries aged 18-65 years without pre-existing hip pathology with a newly diagnosed acetabular fracture were identified between October 1, 2015, through December 31, 2018. The intervention was open reduction internal fixation of acetabular fracture during index admission. The primary outcome was survival of the acetabular fracture repair to subsequent reoperation by arthroscopy, arthrotomy for drainage of infection, implant removal, revision acetabular fixation, hip arthroplasty, hip resection, or arthrodesis. RESULTS: 38 reoperation procedures on the fractured acetabulum in 852 patients occurred within 2 years (incidence 4.5%). Total hip arthroplasty (2.5%) and revision internal fixation (1.5%) accounted for most early reoperations. Multivariable Cox regression identified an association between reoperation and increasing patient age (hazard ratio = 1.4 per decade, p < 0.01). The prevalence of any mental health condition was 29%. CONCLUSIONS: Non-elderly adults with employer-sponsored insurance who sustain acetabular fractures have a greater burden of mental health disease than similarly insured patients without these injuries. Survival of the native acetabulum after fracture fixation exceeded 95% at 2 years and decreased with increasing patient age. LEVEL OF EVIDENCE: Level III, Prognostic Study.


Assuntos
Artroplastia de Quadril , Fraturas Ósseas , Fraturas do Quadril , Fraturas da Coluna Vertebral , Adulto , Humanos , Pessoa de Meia-Idade , Fraturas Ósseas/cirurgia , Estudos de Coortes , Estudos Retrospectivos , Fraturas do Quadril/cirurgia , Redução Aberta/métodos , Fixação Interna de Fraturas/métodos , Acetábulo/cirurgia , Fraturas da Coluna Vertebral/cirurgia , Artroplastia de Quadril/métodos , Reoperação/métodos , Resultado do Tratamento
7.
Artigo em Inglês | MEDLINE | ID: mdl-37410159

RESUMO

INTRODUCTION: Obesity remains a global epidemic. The effect of obesity on the risk of complications after acetabular fracture is unknown. Here, we evaluate the effect of BMI on early complications and mortality after acetabular fracture. We hypothesize that the risk of inpatient complications and mortality will be greater in patients with high BMI when compared to those with normal BMI. METHODS: Adult patients with acetabular fracture were identified via the Trauma Quality Improvement Program data from 2015 to 2019. The primary outcome was overall complication rate with reference to normal-weight patients (BMI = 25-30 kg/m2). The secondary outcome was rates of death. The association of obesity class on the primary and secondary outcomes was assessed using Bonferroni-corrected multiple logistic regression models considering patient, injury, and treatment covariates. RESULTS: A total of 99,721 patients with acetabular fracture were identified. Class I obesity (BMI = 30-35 kg/m2) was associated with 1.2 greater adjusted relative risk (aRR; 95% confidence interval (CI) 1.1-1.3) of any adverse event, without significant increases in adjusted risk of death. Class II obesity (BMI = 35-40 kg/m2) was associated with aRR = 1.2 (95% CI 1.1-1.3) of any adverse event and aRR = 1.5 (95% CI 1.2-2.0) of death. Class III obesity (BMI ≥ 40 kg/m2) was associated with aRR = 1.3 (95% CI 1.2-1.4) of any adverse event and aRR = 2.3 (95% CI 1.8-2.9) of death. CONCLUSION: Obesity is associated greater risk of adverse events and death following acetabular fracture. Obesity severity classification scales with these risks.

8.
Artigo em Inglês | MEDLINE | ID: mdl-37773420

RESUMO

PURPOSE: Underweight patients experience poor outcomes after elective orthopaedic procedures. The effect of underweight body mass index (BMI) on complications after acetabular fracture is not well-described. We evaluate if underweight status is associated with inpatient complications after acetabular fractures. METHODS: Adult patients (≥ 18 years) presenting with acetabular fracture between 2015 and 2019 were identified from Trauma Quality Program data. Adjusted odds (aOR) of any inpatient complication or mortality were compared between patients with underweight BMI (< 18.5 kg/m2) and normal BMI (18.5-25 kg/m2) using multivariable logistic regression and stratifying by age ≥ 65 years. RESULTS: The 1299 underweight patients aged ≥ 65 years compared to 11,629 normal weight patients experienced a 1.2-times and 2.7-times greater aOR of any complication (38.6% vs. 36.6%, p = 0.010) and inpatient mortality (7.9% vs. 4.2%, p < 0.001), respectively. The 1688 underweight patients aged 18-64 years compared to 24,762 normal weight patients experienced a 1.2-times and 1.5-times greater aOR of any inpatient complication (38.9% vs. 34.8%, aOR p = 0.006) and inpatient mortality (4.1% vs. 2.5%, p < 0.001), respectively. CONCLUSION: Underweight adult patients with acetabular fracture are at increased risk for inpatient complications and mortality, particularly those ≥ 65 years old. LEVEL OF EVIDENCE: Prognostic Level III.

9.
Artigo em Inglês | MEDLINE | ID: mdl-37289243

RESUMO

PURPOSE: To describe and evaluate the serendipitous pelvic binder stress radiographs of lateral compression type (LC) pelvic ring injuries. METHODS: This was a retrospective case series performed at a single, level I academic trauma center from 2016 to 2018. All patients presenting with a minimally displaced LC pelvic ring injury were reviewed (< 10 cm displacement on static pelvic radiographs). Patients with X-rays (XR) in a pelvic binder (EMS stress) and with the pelvic binder removed were included. Pelvic ring stability was determined by attending surgeon evaluation of EMS stress radiographs versus static XR of the pelvis. Patients were treated non-operatively and allowed to weight bear or taken to the operating room for exam under anesthesia (EUA) and potential operative fixation. Clinical success of treatment was determined by evaluation of further displacement at the completion of their most recent follow-up. RESULTS: Thirty-seven patients of the initial 398 reviewed met inclusion criteria. Fourteen of 37 patients (38%) were categorized as stable with no significant pelvis displacement seen on EMS stress and were treated non-operatively without further sequelae (4.6 months mean follow-up). The remaining 23/37 (62%) were treated operatively. Occult instability was identified on EMS stress in 14 (61%) of those 23 patients and the remainder were determined to be unstable based upon fracture pattern or EUA. All patients went on to successful treatment without significant pelvic deformity (7.8 months mean follow-up). CONCLUSION: The EMS stress XR is a valuable, opportunistic evaluation in LC pelvic ring injuries. This evaluation is a useful diagnostic adjunct to alert the provider that additional stress imaging may be indicated to evaluate for occult pelvic ring instability.

10.
Eur J Orthop Surg Traumatol ; 33(7): 2805-2811, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36418579

RESUMO

PURPOSE: Open reduction internal fixation of tibial plateau and pilon fractures may be complicated by deep surgical site infection requiring operative debridement and antibiotic therapy. The management of superficial surgical site infection is controversial. We sought to determine whether superficial infection is associated with an increased risk of deep infection requiring surgical debridement after fixation of tibial plateau and pilon fractures. METHODS: This is a secondary analysis of data from the VANCO trial, which included 980 adult patients with a tibial plateau or pilon fracture at elevated risk of infection who underwent open reduction internal fixation with plates and screws with or without intrawound vancomycin powder. An association of superficial surgical site infection with deep surgical site infection requiring debridement surgery and antibiotics was explored after matching on risk factors for deep surgical site infection. RESULTS: Of the 980 patients, we observed 30 superficial infections (3.1%) and 76 deep infections (7.8%). Among patients who developed a superficial infection, the unadjusted incidence of developing a deep infection within 90 days was 12.8% (95% confidence interval [CI] 1.3-24.2%). However, after a 3:1 match on infection risk factors, the 90-day marginal probability of a deep surgical site infection after sustaining a superficial infection was 6.0% (95% CI - 6.5-18.5%, p = 0.35). CONCLUSION: Deep infection after superficial infection is uncommon following operative fixation of tibial plateau and pilon fractures. Increased risk of subsequent deep infection attributable to superficial infection was inconclusive in these data. LEVEL OF EVIDENCE: Prognostic Level II.


Assuntos
Infecção da Ferida Cirúrgica , Fraturas da Tíbia , Adulto , Humanos , Antibacterianos/uso terapêutico , Fixação Interna de Fraturas/efeitos adversos , Redução Aberta/efeitos adversos , Fatores de Risco , Infecção da Ferida Cirúrgica/epidemiologia , Fraturas da Tíbia/complicações , Resultado do Tratamento , Vancomicina
11.
Arch Orthop Trauma Surg ; 142(6): 955-959, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33417025

RESUMO

INTRODUCTION: Septic arthritis following surgical treatment of a tibial plateau fracture is a rare complication, but it does occur, and the impact on long-term function is relatively unknown. The purpose of this study was to determine the long-term sequelae of septic arthritis among patients treated with internal fixation for a tibial plateau fracture and to determine the effect of timing (early or late infection) on the rate of such sequela. MATERIALS AND METHODS: A retrospective comparative study was designed using the trauma database of a single level I academic trauma center. Patients who developed culture-positive septic knee arthritis after internal fixation of a tibial plateau fracture, with 1-year follow-up, were included in the study. The number of debridement procedures required was recorded. Rates of long-term complications and implant removal were identified. Complications rates were compared between patients who developed early (within 30 days of definitive fixation) and late (more than 30 days) septic arthritis. RESULTS: The mean number of debridement procedures per patient was six. Fourteen patients (88%) required implant removal, and thirteen (81%) developed knee arthritis. There was a significantly lower rate of complications in the early septic arthritis group compared to the late group (3 of 6 patients or 50%, vs 10 of 10 patients or 100%; p = 0.036). CONCLUSIONS: Patients who developed septic arthritis following internal fixation of a tibial plateau fracture were likely to endure long-term sequelae. Early infection and detection led to fewer complications. Surgeons treating infectious complications in tibial plateau fracture patients should specifically seek to rule out septic arthritis, anticipate that implant removal may be necessary, and counsel these patients appropriately regarding the anticipated natural history of their condition. LEVEL OF EVIDENCE: III.


Assuntos
Artrite Infecciosa , Fraturas da Tíbia , Artrite Infecciosa/etiologia , Artrite Infecciosa/cirurgia , Fixação de Fratura/métodos , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/métodos , Humanos , Reoperação , Estudos Retrospectivos , Fraturas da Tíbia/complicações , Fraturas da Tíbia/cirurgia
13.
Eur J Orthop Surg Traumatol ; 32(5): 821-826, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34142252

RESUMO

PURPOSE: Proximal tibiofibular joint (PTFJ) dislocations are under-investigated injuries. There is scant basic science or clinical evidence to direct management. The purpose of this study was twofold; first to investigate the pathomechanics of PTFJ dislocation on knee mechanics. The second purpose was to evaluate knee mechanics following reduction and fixation. METHODS: Six cadaveric legs were tested on a mechanical platform. A 5 Nm external rotation force was applied to each knee and the external rotation and fibular translation was measured for several study conditions at 0°, 30°, and 90° of flexion. Conditions included: the native state, transection of the posterior PTFJ ligament, transection of the anterior and posterior ligaments, screw fixation, and suspensory fixation. Screw fixation was performed using a single quadricortical 3.5 mm screw. Suspensory fixation was performed using an Arthrex TightRope device RESULTS: Transection of the anterior and posterior ligaments increased external rotation by 4.3°, 5.9°, and 5.6°, at 0°, 30°, and 90° (p ≤ 0.001), respectively. Screw and suspensory fixation returned external rotation to a near native state with mild overconstraint. Complete transection of anterior and posterior ligaments resulted in pathologic anterior fibular translation of 1.51 mm (p = 0.001), 1 mm, (p = 0.02) and 0.44 mm (p = 0.69) for 0°, 30°, 90° of knee flexion. Screw and suspensory fixation restored native translation at all points with a small degree of overconstraint. CONCLUSION: Disruption of the PTFJ causes pathologic external rotation and anterior fibular translation. Fixation restores near native motion with minor overconstraint. Surgeons should consider reduction and fixation of PTFJ injuries to restore native knee mechanics.


Assuntos
Luxações Articulares , Instabilidade Articular , Articulação do Tornozelo , Fenômenos Biomecânicos , Cadáver , Humanos , Instabilidade Articular/cirurgia , Joelho , Articulação do Joelho/cirurgia , Ligamentos Articulares/cirurgia
14.
Emerg Radiol ; 28(6): 1119-1126, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34278515

RESUMO

PURPOSE: We investigated the sensitivity of a screening test for pelvic ring disruption, the AP pelvis radiograph, for clinically serious U-type sacral fractures which merit consultation with an orthopedic trauma specialist and may require transfer to a higher level of care. METHODS: Retrospective clinical cohort of 63 consecutive patients presenting with U-type sacral fractures at one level 1 trauma referral center from January 2006 through December 2019. The sensitivity of the first AP pelvis radiograph obtained on admission, interpreted without reference to antecedent or concomitant pelvis computed tomography (CT) by a radiologist and a panel of three blinded orthopedic traumatologists, was determined against a reference diagnosis made from review of all pelvis radiographs, CT images, operative reports, and clinical documentation. RESULTS: Sensitivity of AP pelvis radiograph for U-type sacral fractures was 2% as interpreted by a radiologist and mean 12% (range 5-27%) as interpreted by orthopedic traumatologists with poor inter-rater agreement (Fleiss' κ = 0.11). 94% of sacra were at obscured by radiographic artifact. CONCLUSION: The sensitivity of an AP pelvis radiograph is poor for U-type sacral fractures, whether interpreted by radiologists or orthopedic traumatologists. Pelvis CT should be considered as a screening test to rule out sacral fracture when the patient reports posterior pelvic pain, even if plain radiography demonstrates no injury or a minimally displaced pelvic ring disruption. LEVEL OF EVIDENCE: Diagnostic level III.


Assuntos
Sacro , Fraturas da Coluna Vertebral , Humanos , Pelve , Radiografia , Estudos Retrospectivos , Sacro/diagnóstico por imagem , Sacro/lesões , Fraturas da Coluna Vertebral/diagnóstico por imagem
15.
J Pediatr Orthop ; 38(3): 133-137, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27261962

RESUMO

BACKGROUND: Pediatric and adolescent pelvic ring injuries are frequently treated without surgery. In patients with unstable injuries to the pelvic ring, surgical stabilization aids in resuscitation, provides pain relief, and allows for mobilization. Percutaneous pelvic screw fixation is commonly performed in adult patients for unstable pelvic ring injuries, but a paucity of literature exists regarding their use in pediatric patients. The purpose of this study is to review the use, outcome, and management of percutaneous posterior pelvic screws in pediatric patients with unstable pelvic ring injuries. METHODS: A retrospective review of a prospectively collected orthopaedic trauma database was performed over a 7-year period at a regional level-1 trauma center. All patients between the ages of 7 and 17 who sustained an injury to the pelvic ring and were treated with percutaneous fixation of the posterior pelvic ring were identified. We evaluated the frequency of this technique in the described patient population, incidence of nerve injury, infection, loss of fixation, and need for hardware removal. RESULTS: A total of 238 pediatric patients who sustained a pelvic ring injury were initially identified; following application of study criteria, 67 (28.1%) patients were included in the study. Additional anterior ring fixation was performed in 33 (49.2%) patients. There were no iatrogenic nerve injuries, no infections, and surgical blood loss was <50 mL in all cases. Clinical and radiographic follow-up averaged 33 weeks. No loss of reduction was observed. Eight patients (13%) reported persistent low back pain at last follow-up. Elective hardware removal was performed in 3 patients. CONCLUSIONS: The majority of pediatric pelvic ring injuries can be treated without surgery. In the setting of instability, percutaneous pelvic screw fixation can be performed safely. A computed tomography scan is used to evaluate the available osseous pathways for screws and intraoperative fluoroscopy is used to safely perform this technique. Screw removal should be discussed in select patients. LEVEL OF EVIDENCE: Level IV.


Assuntos
Parafusos Ósseos , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/cirurgia , Ossos Pélvicos/lesões , Ossos Pélvicos/cirurgia , Adolescente , Perda Sanguínea Cirúrgica , Criança , Feminino , Fluoroscopia/métodos , Fraturas Ósseas/diagnóstico por imagem , Humanos , Masculino , Ossos Pélvicos/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X , Centros de Traumatologia
16.
J Electrocardiol ; 50(6): 841-846, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28918214

RESUMO

BACKGROUND: The feasibility of using photoplethysmography (PPG) for estimating heart rate variability (HRV) has been the subject of many recent studies with contradicting results. Accurate measurement of cardiac cycles is more challenging in PPG than ECG due to its inherent characteristics. METHODS: We developed a PPG-only algorithm by computing a robust set of medians of the interbeat intervals between adjacent peaks, upslopes, and troughs. Abnormal intervals are detected and excluded by applying our criteria. RESULTS: We tested our algorithm on a large database from high-risk ICU patients containing arrhythmias and significant amounts of artifact. The average difference between PPG-based and ECG-based parameters is <1% for pNN50, <1bpm for meanHR, <1ms for SDNN, <3ms for meanNN, and <4ms for SDSD and RMSSD. CONCLUSIONS: Our performance testing shows that the pulse rate variability (PRV) parameters are comparable to the HRV parameters from simultaneous ECG recordings.


Assuntos
Algoritmos , Arritmias Cardíacas/fisiopatologia , Determinação da Frequência Cardíaca/métodos , Frequência Cardíaca/fisiologia , Fotopletismografia/métodos , Artefatos , Eletrocardiografia/métodos , Humanos , Unidades de Terapia Intensiva , Sensibilidade e Especificidade , Processamento de Sinais Assistido por Computador
17.
J Electrocardiol ; 50(5): 615-619, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28476433

RESUMO

A large number of ST-elevation notifications are generated by cardiac monitoring systems, but only a fraction of them is related to the critical condition known as ST-segment elevation myocardial infarction (STEMI) in which the blockage of coronary artery causes ST-segment elevation. Confounders such as acute pericarditis and benign early repolarization create electrocardiographic patterns mimicking STEMI but usually do not benefit from a real-time notification. A STEMI screening algorithm able to recognize those confounders utilizing capabilities of diagnostic ECG algorithms in variation analysis of ST segments helps to avoid triggering a non-actionable ST-elevation notification. However, diagnostic algorithms are generally designed to analyze short ECG snapshots collected in low-noise resting position and hence are susceptible to high levels of noise common in a monitoring environment. We developed a STEMI screening algorithm which performs a real-time signal quality evaluation on the ECG waveform to select the segments with quality high enough for subsequent analysis by a diagnostic ECG algorithm. The STEMI notifications generated by this multi-stage STEMI screening algorithm are significantly fewer than ST-elevation notifications generated by a continuous ST monitoring strategy.


Assuntos
Síndrome Coronariana Aguda/diagnóstico , Algoritmos , Eletrocardiografia Ambulatorial , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Masculino
18.
Instr Course Lect ; 66: 39-49, 2017 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-28594487

RESUMO

Talar fractures are some of the most challenging injuries that orthopaedic traumatologists manage. The current knowledge of functional alterations with regard to malreduction of talar fractures is well established. Decision making with regard to timing, approach, and implant selection as well as strategies to help achieve accurate restoration of talar anatomy substantially affect outcomes and must be carefully considered. Perfect anatomic talar reconstruction should always be attempted, and orthopaedic surgeons should have a strong working knowledge of the vascular, three-dimensional, and radiographic anatomy of the talus before performing talar surgery. Almost the entire talus is surgically accessible via several approaches, all of which surgeons should be clinically familiar with to optimize reduction and fixation and safely preserve the soft-tissue envelope. Furthermore, surgeons must appreciate the plantarmedial vascular area of the talus, which must be avoided during dissection. The complication rates in patients who have talar fractures are high, particularly in those who have talar neck and talar body fractures; therefore, patients should be counseled on their expected outcome, with a specific discussion on the risk of osteonecrosis and subtalar arthritis.


Assuntos
Fixação Interna de Fraturas , Fraturas Ósseas , Tálus , Artrite/etiologia , Fraturas Ósseas/complicações , Fraturas Ósseas/cirurgia , Humanos , Osteonecrose/etiologia , Tálus/lesões
19.
Int Orthop ; 41(2): 385-395, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27150488

RESUMO

PURPOSE: There has been little direct comparison between non-operative and operative management of humeral shaft fractures. The present study aimed to compare union rates and complication rates between these two modalities of treatment. METHODS: A retrospective cohort study was performed at a regional level 1 trauma centre. A total of 296 patients with humeral shaft fractures met inclusion criteria; 69 patients were treated with a functional brace and 227 with surgical intervention. The primary end point was radiographic union. Nonunion was defined as failure of radiological union at six months, requiring surgical intervention. Time to union, nerve palsy rate, and rate of infection were also examined. RESULTS: The nonunion rate was significantly higher in the non-operative group (23.2 % vs 10.2 %) despite higher rates of open fractures and high energy mechanisms of injury in the operative group. No significant difference in time to union was found. Nerve palsy was more common in the operative group (20 % vs 39 %); however, only two cases (1 %) of radial nerve palsy in the operative group were iatrogenic and both were transient. Infection rates were higher for the operative group (3.5 % vs 0 %). CONCLUSIONS: Conservative treatment of humeral shaft fractures has a higher rate of nonunion, while operative treatment is associated with a low incidence of iatrogenic nerve palsy but higher rates of infection.


Assuntos
Tratamento Conservador/métodos , Fixação Interna de Fraturas/métodos , Consolidação da Fratura , Fraturas do Úmero/terapia , Úmero/cirurgia , Adulto , Idoso , Braquetes , Estudos de Coortes , Tratamento Conservador/efeitos adversos , Feminino , Fixação Interna de Fraturas/efeitos adversos , Humanos , Fraturas do Úmero/complicações , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
20.
J Foot Ankle Surg ; 56(2): 242-246, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28231959

RESUMO

Ankle arthrodesis remains an important treatment option for patients with ankle arthritis. Many methods have been described; however, no consensus has been reached regarding the best technique to achieve both successful fusion and a good position for optimal foot mechanics. Furthermore, as arthroplasty has become more popular, preservation of the fibula to allow for future arthroplasty has become critical. The present report describes an innovative technique in which temporary external fixation at operative fixation is used, along with internal fixation, to achieve both an optimal foot position and high fusion rates, while maintaining the integrity of the fibula. Seventeen patients were identified who met the criteria for inclusion. Their medical records, including pre- and postoperative radiographs, were reviewed retrospectively. Preoperative and postoperative coronal and sagittal alignment was determined. All patients achieved successful fusion, although 1 (5.9%) patient experienced delayed union. The average tibial/talar ratio preoperatively was 21% (range 8% to 33%), demonstrating anterior subluxation. Postoperatively, this ratio improved to 33% (range 26% to 40%), approximating the normal anatomic ratio. Of the 17 patients, 5 (29.4%) had preoperative varus or valgus alignment of the talas >5°. All 5 cases were successfully corrected to within 2° of normal anatomic alignment. This technique allows the surgeon to achieve good visualization of the joint for preparation and to obtain the optimal position of the foot at arthrodesis without compromising the lateral column significance of the fibula. All patients obtained fusion, and minimal complications were associated with the use of this technique.


Assuntos
Articulação do Tornozelo/cirurgia , Artrodese/métodos , Fixadores Externos , Cuidados Intraoperatórios , Osteoartrite/cirurgia , Adulto , Idoso , Parafusos Ósseos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osseointegração , Estudos Retrospectivos , Tálus/transplante , Tíbia/transplante
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