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Background: A recent study has reported that the radiographic measurement of posterior tibial slope (PTS) is larger in male pediatric patients with tibial spine fractures (TSF) than in controls. However, they found no difference in PTS between female patients and controls. Purpose: (1) To identify whether PTS is larger in female pediatric patients with TSF than in female controls and (2) to validate the relationship between PTS and pediatric TSF in male patients. Study Design: Cross-sectional study; Level of evidence, 3. Methods: After an a priori power analysis, 84 pediatric patients with TSF (50 female patients and 34 male patients) and 84 age- and sex-matched controls were enrolled in this study. Demographic information, including sex, age, and race, was recorded. Skeletal maturity was determined based on the stage of epiphyseal union on knee radiographs. PTS was defined as the angle between a line perpendicular to the longitudinal axis of the tibia and the posterior inclination of the medial tibial plateau on standard knee lateral radiographs. Results: The mean age when the TSF occurred was 11.2 ± 2.7 years for female patients and 12.9 ± 2.5 years for male patients. There was no significant difference in skeletal maturity between female patients and female controls or between male patients and male controls. The mean PTS was not significantly different between female patients (8.8°± 2.8°) and female controls (8.3°± 3.1°) (P =.366) or between male patients (9.0°± 2.8°) and male controls (9.3°± 2.6°) (P =.675). Those with a PTS >1 SD (2.9°) above the mean (8.8°) had no greater odds (1.0 [95% CI, 0.4-2.5]; P ≥.999) of having a TSF than others. Conclusion: PTS was not found to be a risk factor for pediatric TSF in female or male patients in this study. [ABSTRACT FROM AUTHOR]

Background: Ankle arthroplasty has emerged as a viable alternative to ankle arthrodesis due in large part to recent advancements in both surgical technique and implant design. This study seeks to document trends of arthroplasty and arthrodesis for ankle osteoarthritis in New York State from 2009-2018 in order to determine if patient demographics play a role in procedure selection and to ascertain the utilization of each procedure and rates of complications. Methods: Patients 40 years and older from 2009-2018 were identified using International Classification of Diseases, Ninth and Tenth Revisions (ICD-9 and ICD-10), Clinical Modification (CM) diagnosis and procedure codes for ankle osteoarthritis, ankle arthrodesis, and ankle arthroplasty in the New York statewide planning and research cooperative system database. A trend analysis for both inpatient and outpatient procedures was performed to evaluate the changing trends in utilization of ankle arthrodesis and ankle arthroplasty over time. A multivariable logistic regression was used to assess the odds of receiving ankle arthrodesis relative to ankle arthroplasty. Complications were compared between inpatient ankle arthrodesis and arthroplasty using multivariable Cox proportional hazards regression. Results: A total of 3735 cases were included. Ankle arthrodesis increased by 25%, whereas arthroplasty increased by 757%. African American race, federal insurance, workers compensation, presence of comorbidities, and higher social deprivation were associated with increased odds of having an ankle arthrodesis vs an ankle arthroplasty. Compared with ankle arthroplasty, ankle arthrodesis was associated with increased rates of readmission, surgical site infection, acute renal failure, cellulitis, urinary tract infection, and deep vein thrombosis. Conclusion: Ankle arthroplasty volume has grown substantially without a decrease in ankle arthrodesis volume, suggesting that ankle arthroplasty may be selectively used for a different population of patients than ankle arthrodesis patients. Despite the increased growth of ankle arthroplasty, certain patient demographics including patients from minority populations, federal insurance, and from areas of high social deprivation have higher odds of receiving arthrodesis. Level of Evidence: Level III, retrospective cohort. [ABSTRACT FROM AUTHOR]

Background: The uncommon nature of tibial spine fractures (TSFs) may result in delayed diagnosis and treatment. The outcomes of delayed surgery are unknown. Purpose: To evaluate risk factors for, and outcomes of, delayed surgical treatment of pediatric TSFs. Study Design: Cohort study; Level of evidence, 3. Methods: The authors performed a retrospective cohort study of TSFs treated surgically at 10 institutions between 2000 and 2019. Patient characteristics and preoperative data were collected, as were intraoperative information and postoperative complications. Surgery ≥21 days after injury was considered delayed based on visualized trends in the data. Univariate analysis was followed by purposeful entry multivariate regression to adjust for confounders. Results: A total of 368 patients (mean age, 11.7 ± 2.9 years) were included, 21.2% of whom underwent surgery ≥21 days after injury. Patients who experienced delayed surgery had 3.8 times higher odds of being diagnosed with a TSF at ≥1 weeks after injury (95% CI, 1.1-14.3; P =.04), 2.1 times higher odds of having seen multiple clinicians before the treating surgeon (95% CI, 1.1-4.1; P =.03), 5.8 times higher odds of having magnetic resonance imaging (MRI) ≥1 weeks after injury (95% CI, 1.6-20.8; P <.007), and were 2.2 times more likely to have public insurance (95% CI, 1.3-3.9; P =.005). Meniscal injuries were encountered intraoperatively in 42.3% of patients with delayed surgery versus 21.0% of patients treated without delay (P <.001), resulting in 2.8 times higher odds in multivariate analysis (95% CI, 1.6-5.0; P <.001). Delayed surgery was also a risk factor for procedure duration >2.5 hours (odds ratio, 3.3; 95% CI, 1.4-7.9; P =.006). Patients who experienced delayed surgery and also had an operation >2.5 hours had 3.7 times higher odds of developing arthrofibrosis (95% CI, 1.1-12.5; P =.03). Conclusion: Patients who underwent delayed surgery for TSFs were found to have a higher rate of concomitant meniscal injury, longer procedure duration, and more postoperative arthrofibrosis when the surgery length was >2.5 hours. Those who experienced delays in diagnosis or MRI, saw multiple clinicians, and had public insurance were more likely to have a delay to surgery. [ABSTRACT FROM AUTHOR]

Background: Previous studies have reported disparities in orthopaedic care resulting from demographic factors, including insurance status. However, the effect of insurance on pediatric tibial spine fractures (TSFs), an uncommon but significant injury, is unknown. Purpose: To assess the effect of insurance status on the evaluation and treatment of TSFs in children and adolescents. Study Design: Cross-sectional study; Level of evidence, 3. Methods: We performed a retrospective cohort study of TSFs treated at 10 institutions between 2000 and 2019. Demographic data were collected, as was information regarding pre-, intra-, and postoperative treatment, with attention to delays in management and differences in care. Surgical and nonsurgical fractures were included, but a separate analysis of surgical patients was performed. Univariate analysis was followed by purposeful entry multivariate regression to adjust for confounding factors. Results: Data were collected on 434 patients (mean ± SD age, 11.7 ± 3.0 years) of which 61.1% had private (commercial) insurance. Magnetic resonance imaging (MRI) was obtained at similar rates for children with public and private insurance (41.4% vs 41.9%, respectively; P ≥.999). However, multivariate analysis revealed that those with MRI performed ≥21 days after injury were 5.3 times more likely to have public insurance (95% CI, 1.3-21.7; P =.02). Of the 434 patients included, 365 required surgery. Similar to the overall cohort, those in the surgical subgroup with MRI ≥21 days from injury were 4.8 times more likely to have public insurance (95% CI, 1.2-19.6; P =.03). Children who underwent surgery ≥21 days after injury were 2.5 times more likely to have public insurance (95% CI, 1.1-6.1; P =.04). However, there were no differences in the nature of the surgery or findings at surgery. Those who were publicly insured were 4.1 times more likely to be immobilized in a cast rather than a brace postoperatively (95% CI, 2.3-7.4; P <.001). Conclusion: Children with public insurance and a TSF were more likely to experience delays with MRI and surgical treatment than those with private insurance. However, there were no differences in the nature of the surgery or findings at surgery. Additionally, patients with public insurance were more likely to undergo postoperative casting rather than bracing. [ABSTRACT FROM AUTHOR]

Background: There is a high rate of concomitant injuries reported in pediatric patients with tibial spine fractures, ranging from 40% to 68.8%. Many tibial spine fractures are treated without initial magnetic resonance imaging (MRI). Purpose: To understand rates of concomitant injury and if the reported rates of these injuries differed among patients with and without pretreatment MRI. Study Design: Cross-sectional study; level of evidence, 3. Methods: We performed an institutional review board–approved multicenter retrospective cohort study of patients treated for tibial spine fractures between January 1, 2000, and January 31, 2019, at 10 institutions. Patients younger than 25 years of age with tibial spine fractures were included. Data were collected on patient characteristics, injury, orthopaedic history, pretreatment physical examination and imaging, and operative findings. We excluded patients with multiple trauma and individuals with additional lower extremity fractures. Patients were categorized into 2 groups: those with and those without pretreatment MRI. The incidence of reported concomitant injuries was then compared between groups. Results: There were 395 patients with a tibial spine fracture who met inclusion criteria, 139 (35%) of whom were reported to have a clinically significant concomitant injury. Characteristics and fracture patterns were similar between groups. Of patients with pretreatment MRI, 79 of 176 (45%) had an identified concomitant injury, whereas only 60 of 219 patients (27%) without pretreatment MRI had a reported concomitant injury (P <.001). There was a higher rate of lateral meniscal tears (P <.001) in patients with pretreatment MRI than in those without. However, there was a higher rate of soft tissue entrapment at the fracture bed (P =.030) in patients without pretreatment MRI. Overall, 121 patients (87%) with a concomitant injury required at least 1 treatment. Conclusion: Patients with pretreatment MRI had a statistically significantly higher rate of concomitant injury identified. Pretreatment MRI should be considered in the evaluation of tibial spine fractures to improve the identification of concomitant injuries, especially in patients who may otherwise be treated nonoperatively or with closed reduction. Further studies are necessary to refine the indications for MRI in patients with tibial spine fractures, determine the characteristics of patients at highest risk of having a concomitant injury, define the sensitivity and specificity of MRI in tibial spine fractures, and investigate patient outcomes based on pretreatment MRI status. [ABSTRACT FROM AUTHOR]

Objective: Considering the high rates of opioid usage following orthopedic surgeries, it is important to explore this in the setting of the current opioid epidemic. This study examined acute opioid poisonings in postoperative spine surgery patients in New York and the rates of poisonings among these patients in the context of New York's 2016 State legislation limiting opioid prescriptions.Methods: Claims for adult patients who received specific orthopedic spine procedures in the outpatient setting were identified from 2009 to 2018 in the New York Statewide Planning and Research Cooperative System (SPARCS) database. Patients were followed to determine if they presented to the emergency department for acute opioid poisoning postoperatively. Multivariable logistic regression was performed to evaluate the effect of patient demographic factors on the likelihood of poisoning. The impact of the 2016 New York State Public Health Law Section 3331, 5. (b), (c) limiting opioid analgesic prescriptions was also evaluated by comparing rates of poisoning prelegislation and postlegislation enactment.Results: A total of 107,456 spine patients were identified and 321 (0.3%) presented postoperatively to the emergency department with acute opioid poisoning. Increased age [odds ratio (OR)=0.954, P <0.0001] had a decreased likelihood of poisoning. Other race (OR=1.322, P =0.0167), Medicaid (OR=2.079, P <0.0001), Medicare (OR=2.9, P <0.0001), comorbidities (OR=3.271, P <0.0001), and undergoing multiple spine procedures during a single operative setting (OR=1.993, P <0.0001) had an increased likelihood of poisoning. There was also a significant reduction in rates of postoperative acute opioid poisoning in patients receiving procedures postlegislation with reduced overall likelihood (OR=0.28, P <0.0001).Conclusion: There is a higher than national average rate of acute opioid poisonings following spine procedures and increased risk among those with certain socioeconomic factors. Rates of poisonings decreased following a 2016 legislation limiting opioid prescriptions. It is important to define factors that may increase the risk of postoperative opioid poisoning to promote appropriate management of postsurgical pain. [ABSTRACT FROM AUTHOR]