Use of Direct Oral Anticoagulants Among Patients With Hip Fracture Is Not an Indication to Delay Surgical Intervention.

OBJECTIVES: To compare outcomes in patients on direct oral anticoagulants (DOACs) treated within 48 hours of last preoperative dose with those with surgical delays >48 hours. DESIGN: Retrospective cohort study. SETTING: Three academic Level 1 trauma centers. PATIENT SELECTION CRITERIA: Patients 65 years of age or older on DOACs before hip fracture treated between 2010 and 2018. Patients were excluded if last DOAC dose was >24 hours before admission, patient suffered from polytrauma, and/or delay to surgery was not attributed to DOAC. OUTCOME MEASURES AND COMPARISONS: Primary outcome measures were the postoperative complication rate as determined by diagnosis of deep venous thrombosis or pulmonary embolus, wound breakdown, drainage, or infection. Secondary outcomes included transfusion requirement, perioperative bleeding, length of stay, reoperation rates, readmission rates, and mortality. RESULTS: Two hundred five patients were included in this study, with a mean cohort age of 81.9 years (65-100 years), 64% were (132/205) female, and a mean Charlson Comorbidity Index of 6.4 (2-20). No significant difference was observed among age, sex, Charlson Comorbidity Index, or fracture pattern between cohorts (P > 0.05 for all comparisons). Seventy-one patients had surgery <48 hours after final preoperative DOAC dose; 134 patients had surgery >48 hours after. No significant difference in complication rate between the 2 cohorts was observed (P = 0.30). Patients with delayed surgical management were more likely to require transfusion (OR 2.39, 95% CI, 1.05-5.44; P = 0.04). Patients with early surgical management had significantly shorter lengths of stay (5.9 vs. 7.6 days, P < 0.005). There was no difference in estimated blood loss, anemia, reoperations, readmissions, 90-day mortality, or 1-year mortality (P > 0.05 for all comparisons). CONCLUSIONS: Geriatric patients with hip fracture who underwent surgical management within 48 hours of their last preoperative DOAC dose required less transfusions and had decreased length of stay, with comparable mortality and complication rates with patients with surgery delayed beyond 48 hours. Providers should consider early intervention in this population rather than adherence to elective procedure guidelines. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Increasing Value in Subspecialty Training: A Comparison of Variation in Surgical Complications for Pediatric Versus Other Fellowship-trained American Board of Orthopaedic Surgery Candidates in the Treatment of Supracondylar Fractures.

INTRODUCTION: The effect of orthopaedic fellowship subspecialization on surgical complications for patients with supracondylar fracture is unknown. This study seeks to compare the effect of subspecialty training on supracondylar fracture complications. METHODS: The American Board of Orthopaedic Surgery Part II Examination Case List database was reviewed for all supracondylar fractures from 1999 to 2016. Procedures were divided by fellowship subspecialty (trauma, pediatric, or other) and case volume and assessed by surgeon-reported surgical complications. Predictive factors of complications were analyzed using a binary multivariate logistic regression. RESULTS: Of 10,961 supracondylar fractures identified, 53.47% were done by pediatric fellowship-trained surgeons. Pediatric-trained surgeons had fewer surgical complications compared with their trauma or other trained peers (4.54%, 5.67%, and 6.24%; P = 0.001). Treatment by pediatric-trained surgeons reduced surgical complications (OR = 0.79, 95% CI: 0.66 to 0.94; P = 0.010), whereas increased case volume (31+ cases) showed no significant effect (OR = 0.79, 95% CI: 0.62 to 1.02; P = 0.068). Patient sex, age, and year of procedure did not affect complication rates, while those treated in the Southeast region of the United States and those with a complex fracture type were at increased odds. DISCUSSION: Treatment of supracondylar fractures by pediatric-trained surgeons demonstrates reduced surgeon-reported complications compared with their other fellowship-trained counterparts, whereas case volume does not. This suggests the value of fellowship training beyond pertinent surgical caseload among pediatric-trained surgeons and may lie in targeted education efforts.

Mental Robustness May Be Associated With Improved Physical Function in Bilateral Total Knee Arthroplasty Patients.

BACKGROUND: In accordance with the high incidence of bilateral knee osteoarthritis, many patients have undergone bilateral total knee arthroplasty (BTKA). Whether patients undergo bilateral procedures in a staged or simultaneous fashion, the physical and mental burden of undergoing 2 major orthopedic procedures is considerable. The aims of this study were to (1) investigate differences between minimal clinically important difference (MCID) achievement between staged versus simultaneous BTKA, and (2) identify the patient variables, specifically mental scores, that were associated with MCID achievement in patients undergoing BTKA. METHODS: Simultaneous and staged BTKA patients within a single health care network from 2016 to 2021 were retrospectively reviewed. Patient demographics, surgery details, and Patient-Reported Outcome Measurement Information System Physical Function Short Forms 10a (PROMIS PF10a), PROMIS Mental scores, and Knee Disability Osteoarthritis Outcome Scores (KOOS) were reviewed. Preoperative and postoperative patient-reported outcome measures were collected before the first total knee arthroplasty (TKA) and after the second TKA, respectively, in staged BTKA patients. The final cohort consisted of 249 patients, with an average age of 66 years (range, 21 to 87), 63% women, and an average body mass index of 32 (range, 20 to 52), at a mean follow-up of 1.1 years (range, 0.5 to 2.4). Multivariate regressions were performed on MCID PF10a and KOOS achievement, as well as whether the BTKA was performed simultaneously versus staged. RESULTS: A preoperative PROMIS Mental score in the upper 2 quartiles was associated with MCID PF10a achievement in BTKA. Men and surgeries performed at an Academic Medical Center were negatively associated with the achievement of MCID KOOS. Interestingly, those who underwent simultaneous BTKA were less likely to achieve MCID KOOS than those who underwent a staged BTKA. CONCLUSIONS: Preoperative mental robustness may be positively associated with improved physical function outcome in BTKA patients.

Comparison of Differences in Surgical Complications Between Fellowship-Trained Orthopedic Foot and Ankle Surgeons and All Other Orthopedic Surgeons Using the ABOS Database.

During the past decade, US orthopedic residency graduates have become increasingly subspecialized presumably for decreased patient complications; however, no study has examined this clinical utility for foot and ankle (F&A) surgeries among different fellowship subspecialties. Data from American Board of Orthopaedic Surgery 1999 to 2016 Part II Board Certification Examinations were used to assess patients treated by F&A fellowship-trained, trauma fellowship-trained, and all other fellowship-trained orthopedic surgeons performing ankle fracture repair. Adverse events were compared by surgical complexity and fellowship status. Factors independently associated with surgical complications were identified using a binary multivariate logistic regression. A total of 45,031 F&A cases met inclusion criteria. From 1999 to 2016, the percentage of F&A procedures performed by F&A fellowship surgeons steadily increased. Surgical complications were significantly different between fellowship trainings (F&A, 7.23%; trauma, 6.65%; and other, 7.84%). This difference became more pronounced with more complicated fracture pattern. On multivariate regression, F&A fellowship training was associated with significantly decreased likelihood of surgeon-reported complications (odds ratio, 0.83; 95% CI, 0.76-0.92; P<.001), as was trauma fellowship training (odds ratio, 0.90; 95% CI, 0.81-0.99; P=.035). Despite presumed increased complexity of cases treated by F&A fellowship-trained surgeons, these patients had significantly decreased risk of surgeon-reported surgical complications, thus highlighting the value of F&A fellowship training. In the absence of vital patient comorbidity data in the American Board of Orthopaedic Surgery database, further research must examine specific patient comorbidities and case acuity and their influence on treatments and surgical complications between fellowship-trained and other orthopedic surgeons to further illuminate the value of subspecialty training. [Orthopedics. 2023;46(4):e237-e243.].

A comparison of in-hospital outcomes after elective anterior cervical discectomy and fusion in cases with and without Parkinson's Disease.

Background: Following orthopedic surgery, patients with Parkinson's disease (PD) have been shown to have high rates of surgical complications, and some studies suggest that PD may be associated with greater risk for postoperative medical complications. As complication rates are critical to consider for elective surgery planning, the current study aimed to describe the association of PD with medical complications following anterior cervical discectomy and fusion (ACDF), the most commonly performed procedure to treat cervical degenerative pathology. Methods: The 2008-2018 National Inpatient Sample database was queried for cases involving elective ACDF. Demographics and comorbidities were extracted using ICD codes. Cases were propensity matched based on demographic and comorbidity burden, and logistic regression was used to compare in-hospital complications between patients with and without PD. Results: After weighting, a total of 1,273,437 elective ACDF cases were identified, of which 3948 (0.31%) involved cases with PD. After 1:1 propensity score matching by demographic and comorbidity variables, there were no differences between the PD and non-PD cohorts. Logistic regression models constructed for the matched and unmatched populations showed that PD cases have greater odds of in-hospital minor adverse events with no differences in odds of serious adverse events or mortality. Conclusions: After matching for demographics and comorbidity burden, PD cases undergoing elective ACDF had slightly longer length of stay and greater risk for minor adverse events but had similar rates of serious adverse events and mortality. These findings are important for surgeons and patients to consider when making decisions about surgical intervention.

Blind sports' blind spot: The global epidemiology of visual impairment against participation trends in elite blind para sport.

Background: It remains unknown whether access to elite blind sports opportunities is globally balanced or matches the prevalence of blindness/visual impairment (VI). The primary objective of this study was to determine the rate of elite blind sports participation in each world region registered in the International Blind Sports Federation's (IBSA) and to assess its association with the global and regional prevalence of blindness/VI. The secondary objective was to determine the association between other covariates, such as age, vision class, and sex, with the number of IBSA-registered athletes from each region. Methods: A baseline estimate of blindness/VI data was established and used when comparing participation rates to blindness/VI rates. Descriptive statistics were used to describe sports participation and associated co-variates. Results: Among 123 member countries registered in IBSA, 31 did not have any completed registrations in blind sports, of which 22 had a prevalence of blindness/VI higher than the global average. During the summer season 2019, 738 (29.52%) IBSA athletes were female and 1762 (70.48%) were male. Conclusions: These results suggest elite blind/VI sport participation is limited independently from blindness/VI prevalence. Increasing blind-friendly sport resources, especially in low-and-middle-income countries (LMICs), would improve the rate of elite sport participation among athletes with blindness/VI.

Effects of anode position on pedicle screw testing during lumbosacral spinal fusion surgery.

OF BACKGROUND DATA: Pedicle screws are commonly placed with lumbar/lumbosacral fusions. Triggered electromyography (tEMG), which employs the application of electrical current between the screw and a complementary anode to determine thresholds of conduction, may be utilized to confirm the safe placement of such implants. While previous research has established clinical thresholds associated with safe screw placement, there is variability in clinical practice of anode placement which could lead to unreliable measurements. PURPOSE: To determine the variance in pedicle screw stimulation thresholds when using four unique anode locations (ipsilateral/contralateral and paraspinal/gluteal relative to tested pedicle screws). STUDY DESIGN: Prospective cohort study. Tertiary medical center. PATIENT SAMPLE: Twenty patients undergoing lumbar/lumbosacral fusion with pedicle screws using tEMG OUTCOME MEASURES: tEMG stimulation return values are used to assess varied anode locations and reproducibility based on anode placement. METHODS: Measurements were assessed across node placement in ipsilateral/contralateral and paraspinal/gluteal locations relative to the screw being assessed. R2 coefficients of correlation were determined, and variances were compared with F-tests. RESULTS: A total of 94 lumbosacral pedicle screws from 20 patients were assessed. Repeatability was verified using two stimulations at each location for a subset of the screws with an R2 of 0.96. Comparisons between the four anode locations demonstrated R2 values ranging from 0.76 to 0.87. F-tests comparing thresholds between each anode site demonstrated all groups not to be statistically different. CONCLUSION: The current study, a first-of-its-kind formal evaluation of anode location for pedicle screw tEMG testing, demonstrated very strong repeatability and strong correlation with different locations of anode placement. These results suggest that there is no need to change the side of the anode for testing of left versus right screws, further supporting that placing an anode electrode into gluteal muscle is sufficient and will avoid a sharp ground needle in the surgical field.

Chondrosarcoma patient characteristics, management, and outcomes based on over 5,000 cases from the National Cancer Database (NCDB).

INTRODUCTION: Chondrosarcoma, although relatively uncommon, represents a significant percentage of primary osseous tumors. Nonetheless, there are few large-cohort, longitudinal studies of long-term survival and treatment outcomes of chondrosarcoma patients and none using the National Cancer Database (NCDB). METHODS: Chondrosarcoma patients were identified from the 2004-2015 NCDB datasets and divided on three primary tumor sites: appendicular, axial, and other. Demographic, treatment, and long-term survival data were determined for each group. Multivariate Cox analysis and Kaplan-Meier survival curves were generated to assess long-term survival over time for each. RESULTS: In total, 5,329 chondrosarcoma patients were identified, of which 2,686 were appendicular and 1,616 were axial. Survival was higher among the appendicular cohort than axial at 1-year, 5-year, and 10-year (89.52%, 75.76%, and 65.24%, respectively). Multivariate Cox analysis identified patients in the appendicular cohort to have significantly greater likelihood of death with increasing age category, distant metastases at presentation, and male sex (p<0.001 for each). Best outcomes for seen for those undergoing surgical treatment (p<0.001). Patients in the axial cohort were with increased likelihood of death with increasing age category and distant metastases (p<0.001), while surgical treatment with or without radiation were associated with a significant decrease (p<0.001). Kaplan-Meier survival analysis showed worst survival for the axial cohort (p<0.001) and patients with distant metastases at presentation (p<0.001). Survival was not significantly different between older (2004-2007) and more recent years (2012-2016) (p = 0.742). CONCLUSIONS: For both appendicular and axial chondrosarcomas, surgical treatment remains the mainstay of treatment due to its continued superiority for the long-term survival of patients, although advancements in survival over the last decade have been insignificant. Presence of distant metastases and axial involvement are significant, poor prognostic factors perhaps because of difficulty in surgical excision or extent of disease.

Underweight patients are the highest risk body mass index group for perioperative adverse events following stand-alone anterior lumbar interbody fusion.

BACKGROUND CONTEXT: Prior studies investigating the association between Body Mass Index (BMI) and patient outcomes following spine surgery have had inconsistent conclusions, likely owing to insufficient power, confounding variables, and varying definitions and cutoffs for BMI categories (eg, underweight, overweight, obese, etc.). Further, few studies have considered outcomes among low BMI cohorts. PURPOSE: The current study analyzes how anterior lumbar interbody fusion (ALIF) perioperative outcomes vary along the BMI spectrum, using World Health Organization (WHO) categories of BMI. STUDY DESIGN/SETTING: A retrospective cohort study. PATIENT SAMPLE: Patients undergoing stand-alone one or two-level anterior lumbar interbody fusion (ALIF) found in the 2005-2018 American College of Surgeons National Surgical Quality Improvement Program (NSQIP) databases. OUTCOME MEASURES: Thirty-day adverse events, hospital readmissions, post-operative infections, and mortality. METHODS: Stand-alone one or two-level ALIF surgical cases were identified and extracted from the 2005-2018 National Surgical Quality Improvement Program (NSQIP) database. Posterior cases and those primary diagnoses of trauma, tumor, infection, or emergency presentation were excluded. Patients were then binned into WHO guidelines of BMI. The incidence of adverse outcomes within 30-day post-operation was defined. Odds ratios of adverse outcomes, normalized to the average risk of normal-weight subjects (BMI 18.5-24.9 kg/m3), were calculated. Multivariate analysis was then performed controlling for patient factors. RESULTS: In total, 13,710 ALIF patients were included in the study. Incidence of adverse events was elevated in both the underweight (BMI<18.5 kg/m3) and super morbidly obese (>50 kg/m3), however, multivariate risks for adverse events and postoperative infection were elevated for underweight patients beyond those found in any other BMI category. No effect was noted in these identical variables between normal, overweight, obese class 1, or even obese class 2 patients. Multivariate analysis also found overweight patients to show a slightly protective trend against mortality while the super morbidly obese had elevated odds. CONCLUSIONS: Underweight patients are at greater odds of experiencing postoperative adverse events than normal, overweight, obese class 1, or even obese class 2 patients. The present study identifies underweight patients as an at-risk population that should be given additional consideration by health systems and physicians, as is already done for those on the other side of the BMI spectrum.

The case for decreased surgeon-reported complications due to surgical volume and fellowship status in the treatment of geriatric hip fracture: An analysis of the ABOS database.

INTRODUCTION: American orthopaedists are increasingly seeking fellowship sub-specialization. One proposed benefit of fellowship training is decrease in complications, however, few studies have investigated the rates of medical and surgical complications for hip fracture patients between orthopedists from different fellowship backgrounds. This study aims to investigate the effect of fellowship training and case volume on medical and surgical outcomes of patient following hip fracture surgical intervention. METHODS: 1999-2016 American Board of Orthopedic Surgery (ABOS) Part II Examination Case List data were used to assess patients treated by trauma or adult reconstruction fellowship-trained orthopedists versus all-other orthopaedists. Rates of surgeon-reported medical and surgical adverse events were compared between the three surgeon cohorts. Using binary multivariate logistic regression to control of demographic factors, independent factors were evaluated for their effect on surgical complications. RESULTS: Data from 73,427 patients were assessed. An increasing number of hip fractures are being treated by trauma fellowship trained surgeons (9.43% in 1999-2004 to 60.92% in 2011-2016). In multivariate analysis, there was no significant difference in type of fellowship, however, surgeons with increased case volume saw significantly decreased odds of complications (16-30 cases: OR = 0.91; 95% CI: 0.85-0.97; p = 0.003; 31+ cases: OR = 0.68; 95% CI: 0.61-0.76; p<0.001). Femoral neck hip fractures were associated with increased odds of surgical complications. DISCUSSION: Despite minor differences in incidence of surgical complications between different fellowship trained orthopaedists, there is no major difference in overall risk of surgical complications for hip fracture patients based on fellowship status of early orthopaedic surgeons. However, case volume does significantly decrease the risk of surgical complications among these patients and may stand as a proxy for fellowship training. Fellows required to take hip fracture call as part of their training regardless of fellowship status exhibited decreased complication risk for hip fracture patients, thus highlighting the importance of additional training.

The Unmet Need for Orthopaedic Services Among American Indian and Alaska Native Communities in the United States.

ABSTRACT: Historic and present-day marginalization has resulted in a high burden of disease and worse health outcomes for American Indian and Alaska Native (AI/AN) communities in the United States. Musculoskeletal disease is the leading cause of disability for the general population in the U.S. today. However, few have examined musculoskeletal disease burden and access to orthopaedic surgical care in the AI/AN communities. A high prevalence of hip dysplasia, arthritis, back pain, and diabetes, and a high incidence of trauma and road traffic-related mortality, suggest a disproportionately high burden of musculoskeletal pathology among the AI/AN communities and a substantial need for orthopaedic surgical services. Unfortunately, AI/AN patients face many barriers to receiving specialty care, including long travel distances and limited transportation to health facilities, inadequate staff and resources at Indian Health Service (IHS)-funded facilities, insufficient funding for referral to specialists outside of the IHS network, and sociocultural barriers that complicate health-system navigation and erode trust between patients and providers. For those who manage to access orthopaedic surgery, AI/AN patients face worse outcomes and more complications than White patients. There is an urgent need for orthopaedic surgeons to participate in improving the availability of quality orthopaedic services for AI/AN patients through training and support of local providers, volunteerism, advocating for a greater investment in the IHS Purchased/Referred Care program, expanding telemedicine capabilities, and supporting community-based participatory research activities.

Characteristics, Management, and Outcomes of Patients With Osteosarcoma: An Analysis of Outcomes From the National Cancer Database.

INTRODUCTION: Previous studies about osteosarcoma patient characteristics, management, and outcomes have limited patient numbers, combine varied tumor types, and/or are older studies. METHODS: Patients with osteosarcoma from the 2004 to 2015 National Cancer Database data sets were separated into axial, appendicular, and other. Demographic and treatment data as well as 1-, 5-, and 10-year survival were determined for each group. A multivariate Cox analysis of patient variables with the likelihood of death was performed, and the Kaplan Meier survival curves were generated. RESULTS: Four thousand four hundred thirty patients with osteosarcoma (3,435 appendicular, 810 axial, and 185 other) showed survival at 1-year, 5-year, and 10-year and was highest among the appendicular cohort (91.17%, 64.43%, and 58.58%, respectively). No change in survival was seen over the periods studied. The likelihood of death was greater with increasing age category, distant metastases, and treatment with radiation alone but less with appendicular primary site, treatment with surgery alone, or surgery plus chemotherapy. DISCUSSION: Despite advances in tumor management, surgical excision remains the best predictor of survival for osteosarcomas. No difference was observed in patient survival from 2004 to 2015 and, as would be expected, distant metastases were a poor prognostic sign, as was increasing age, male sex, and axial location.

A novel portable and cost-efficient wheelchair training roller for persons with disabilities in economically disadvantaged settings: the EasyRoller.

PURPOSE: Stationary training rollers enable wheelchair users to maintain physical health and train as athletes, which serves to treat and prevent immobility-associated chronic disease and improve cardiorespiratory fitness required for sports performance. However, conventional exercise equipment is largely inaccessible for persons with disabilities in low-resource areas, primarily due to cost. The aim of this study was to prototype, develop, and test a portable, cost-efficient stationary training device for wheelchair users in low-resource settings - The EasyRoller. MATERIALS AND METHODS: Stakeholder input from wheelchair athletes, trainers, and potential commercial manufacturers was solicited and utilized to conceptualize The EasyRoller design. The device was constructed from easily sourced, low cost components, following which it was user-tested with Para athletes. Feedback was analysed and incorporated into newer versions of the prototype.Results and conclusions: The EasyRoller creatively combines easily-sourced components to significantly cut down cost and ease both manufacture and repair for use in low-resource settings. The device is portable with a total weight of 34 pounds and total size of 42 linear inches while also affordable with a total cost of USD$199. Hereby, The EasyRoller has the potential to increase physical activity participation in populations with impairment who live in socioeconomically deprived world regions.Implications for rehabilitationExercise and physical activity are key aspects of health and quality of life for persons with disabilitiesStationary training rollers, devices that enable wheelchair users to train, are often bulky and expensive and therefore inaccessible for populations in socio-economically disadvantaged settingsThe EasyRoller is a portable and affordable training device that increases access to exercise and physical activity for these populations.

Arthroplasty implants and materials: Cost awareness and value perception.

Arthroplasty procedures are commonly performed and contribute to healthcare expenditures seen in the United States. Surgical team members may make selections among implants and materials without always knowing their relative cost. The current study reports on a survey aimed to investigate the perceptions of an academic group about the relative cost and value of commonly used operating room implants and materials related to joint arthroplasty cases using 10 matched pairs of items. Of the 124 persons eligible to take the survey, 102 responded (response rate of 82.3%) including attendings, fellows, residents, physician assistants (PAs), advanced practice registered nurses (APRNs) and registered nurses (RNs). On average for the ten pairs of items, the more expensive items were correctly selected by 90.2+/-13.9% (mean+/- standard deviation) of respondents with a range from 54.9% to 100%. Of note, the cost differences were significantly overestimated for 8/10 item pairs. The majority of respondents perceived the more expensive item as the item with the higher clinical value for 9/10 item pairs. Most arthroplasty attendings (91.3%) indicated willingness to use the less expensive item of two similar items. Nonetheless, 17.9% of fellows, residents, PAs, APRNs and RNs indicated that they would not feel comfortable suggesting using the less expensive item. Although attending arthroplasty surgeons stated a desire to consider costs, a knowledge deficit with regards to identifying the extent of cost differences was identified, and a significant portion of the surgical support team reported being hesitant to suggest less expensive options.

Long-term Corticosteroid Use Independently Correlates With Complications After Posterior Lumbar Spine Surgery.

With the increasing medical complexity of patients undergoing posterior lumbar surgery, more patients are pharmacologically immunosuppressed to manage chronic conditions. The effects of immunosuppression have become of greater interest across multiple surgical specialties. The goal of the current study was to investigate whether long-term corticosteroid use is independently associated with perioperative adverse outcomes among patients undergoing posterior lumbar surgery. Patients who underwent elective posterior lumbar spine surgery (decompression and/or fusion) were identified in the 2005-2016 National Surgical Quality Improvement Program (NSQIP) database. Patient factors, surgical factors, and 30-day perioperative outcomes for patients taking long-term corticosteroids were compared with those for patients who were not taking these drugs. Propensity matching and multivariate analysis were used to evaluate comparable patients while controlling for potentially confounding variables. In total, 140,519 patients undergoing posterior lumbar spine surgery were identified. Of these, 5243 (3.73%) were taking corticosteroids. After propensity matching and controlling for age, sex, body mass index, functional status, American Society of Anesthesiologists class, and surgical procedure, those taking corticosteroids were at greater risk for any adverse event (odds ratio, 1.45), a serious adverse event (odds ratio, 1.57), a minor adverse event (odds ratio, 1.47), infection (odds ratio, 1.48), reoperation (odds ratio, 1.48), and readmission (odds ratio, 1.47) (P≤.001 for each). The findings confirmed that long-term corticosteroid use is associated with significant increases in perioperative adverse outcomes for patients undergoing elective posterior lumbar surgery, even with matching and controlling for potentially confounding variables. These findings can guide patient counseling and preemptive interventions before surgery for this patient population. [Orthopedics. 2021;44(3):172-179.].

Advantages of a New Low-Cost Negative Pressure Wound Therapy Using the "Turtle VAC": A Case Series.

CASE: We present a clinical case and technique guide demonstrating the use and effectiveness of a novel, low-cost negative pressure wound therapy (NPWT) device to achieve soft-tissue coverage in a 34-year-old patient with failed rotational flap and Masquelet technique on infected tibial nonunion. Local debridement was executed, NPWT initiated, and treatment culminated with complete wound healing. CONCLUSION: The "Turtle VAC" offers an effective low-cost alternative to commercially vacuum-assisted closure systems for post-traumatic wounds in low-resource setting of Haiti. Its use of available equipment makes NPWT accessible and can function as a bridge to definitive closure when primary wound closure is not possible and/or between debridement procedures.

Implementation and Impact Evaluation of a Virtual Orthopaedic Continuing Medical Education Conference in a Low-Resource Country.

OBJECTIVE: The Haitian Annual Assembly of Orthopaedic Trauma (HAAOT) is an annual continuing medical education (CME) conference for Haitian orthopedists and trainees converted to a pilot virtual format in 2020 due to the COVID-19 pandemic. We evaluated this virtual format's effectiveness at teaching, facilitating bilingual discussion, and encouraging cross-cultural exchange of experiences - all aimed at improving orthopedic knowledge in a low-resource country like Haiti. DESIGN: Planned collaboratively between North American and Haitian colleagues, the conference involved 4 bilingual weekly Zoom meetings comprised of 4 to 6 prerecorded presentations and live-translated discussion. Pre- and postmeeting knowledge assessments in French (Haitian language of medical instruction) were administered weekly with results compared via 2-sample t-tests. An online postconference survey evaluated attendee satisfaction with the virtual format. SETTING: Virtual. PARTICIPANTS: Weekly attendance involved approximately 50 Haitian orthopedists and trainees, with 20 to 25 completing pre- and postmeeting assessments. RESULTS: Statistically significant increases between pre/post scores were seen during 3 of 4 sessions. Session-wide significant score increases occurred for residents and attending surgeons with <10 years of experience. 85.7% of attendees reported the virtual platform exceeded expectations and 100% indicated likely or extremely likely participation in further virtual events. CONCLUSIONS: The pilot virtual HAAOT was extremely well received with high desire for future sessions. Beyond short-term knowledge retention among attendees, nonmeasurable benefits included collaboration between orthopedists and trainees in the United States, Canada, United Kingdom, Haiti, and Burkina Faso. As COVID-19 spurs online learning in high-income nations, the successful low-resource context adjustments and local partnership underlying this model attest that travel restrictions need not impede delivery of virtual CME conferences in lower-income nations. Attendee learning and the decreased cost and travel requirements allude to this platform's sustainability and reproducibility in facilitating future international education and capacity building. Further studies will assess long-term retention of presented material.

Diabetes Status Affects Odds of Body Mass Index-dependent Adverse Outcomes After Total Hip Arthroplasty.

INTRODUCTION: Obesity and diabetes have independently been shown to predispose to adverse outcomes after total hip arthroplasty (THA). These may have a coupled effect on perioperative risks. The purpose of this study was to evaluate the effect of body mass index (BMI) on adverse outcomes in nondiabetic (ND), non-insulin-dependent diabetes mellitus (NIDDM), and insulin-dependent diabetes mellitus (IDDM) patients. METHODS: Patients undergoing primary THA were selected from the National Surgical Quality Improvement Program Database from 2012 to 2016 and categorized as ND, NIDDM, and IDDM. BMI, demographics, and 30-day perioperative outcomes were assessed for each group. Multivariate logistic regressions controlling for demographics, functional status, and American Society of Anesthesiologists were used to determine the odds ratio of serious adverse event (SAE) in each diabetes group for patients with BMI ≥ 40 kg/m compared with a control group of ND patients with a normal BMI (18.5 to 24.9 kg/m). RESULTS: A total of 108,177 patients were included. The results demonstrate that ND (odds ratio 1.65; P < 0.001) and NIDDM (odds ratio 1.75; P = 0.007) patients have similar risks of SAE, whereas IDDM (odds ratio 2.79; P < 0.001) patients have a greater risk of adverse events, particularly at BMIs greater than 40 kg/m. DISCUSSION: Consistent with previous reports, ND (odds ratio 1.65; P < 0.001) and NIDDM (odds ratio 1.75; P = 0.007) morbidly obese patients (BMI > 40 kg/m) had an increased odds of SAEs after THA, but for IDDM (odds ratio 2.79; P < 0.001) patients this increased odds was notably higher. Although patients with IDDM have increased rates of adverse events compared with ND and NIDDM patients, these findings should not be used to establish strict BMI cutoffs in patients with IDDM. Nonetheless, the results suggest additional factors, such as patient medical history and diabetes control, should be considered when evaluating patients with IDDM for THA. LEVEL OF SIGNIFICANCE: Level III.

Design and development of mobility equipment for persons with disabilities in low-resource and tropical settings: bamboo wheelchairs.

PURPOSE: For persons with disabilities in low-resource and tropical settings, barriers to mobility and physical activity are steep. The aim of this study was to develop and test two low-cost, durable, sustainable, purpose-built wheelchair prototypes to support wheelchair users in low-resource and tropical settings. These bamboo wheelchairs, nicknamed African Chairs by Ghanaian daily manual wheelchair users who tested the devices, adopt two designs: an urban-targeted and a rural-targeted design. MATERIALS AND METHODS: The rural-targeted design incorporated stability as its key design property for the purpose of navigating variable terrain. The urban-targeted design adopted a sleeker, more portable profile for environments that require wheelchair transport in vehicles and the navigation of elevators and ramps. Both designs integrated bamboo-rod skeletons, bonded by hot-glue gun, jointed and wrapped with epoxy-soaked fibers, then upholstered by a local tailor, with basic standard wheel components. An iterative design process incorporated expert consultation as well as user feedback. RESULTS AND CONCLUSIONS: The final prototypes received positive testing reviews from daily manual wheelchair users in Ghana. These locally-built, safe, economical bamboo wheelchairs have the potential to improve accessibility, provide more independence and reduce immobility-related health risks for many.Implications for rehabilitationPersons with disabilities have a right to mobility, maximum independence, and the psychological, emotional, and physical health benefits of physical activity those rights confer.For persons with disabilities in low-resource settings, barriers to mobility and physical activity are steep, due to social stigmatization and the cost and adaptability of equipment.Bamboo wheelchairs have the potential to increase access to mobility and physical activity by allowing wheelchairs to be efficiently produced at cost, according to the user's needs.The aesthetics of bamboo wheelchairs can help reduce social stigma by avoiding the "medicalization" of wheelchairs and other traditional mobility devices.