Faculty Bibliography

The dataset presented was collected via retrospective review from an orthopedic trauma database approved by the institutional review board at the author's institution from patients treated at any of the four hospitals serviced by the academic orthopedic surgery department. Femoral neck and intertrochanteric hip fracture patients from low energy mechanisms admitted between October 2014 and February 2020, were selected if they were age 55 or older and had recorded sex, body mass index (BMI), Charlson Comorbidity Index (CCI), American Society of Anaesthesiologists (ASA) physical status classification, Glasgow Coma Score, Abbreviated Injury Severity score for the chest, head and neck, and extremities, and ambulation status prior to injury. The resultant 1,590 subject dataset may be analysed via the supplied R statistical code to determine the frequency of equipoise in baseline and outcome variables from propensity matching via three matching schemes. The code implements three matching schemes including matching by (1) The Score for Trauma Triage in Geriatric and Middle-Aged (STTGMA) (2) CCI alone, or (3) a combination of sex, age, CCI and BMI. The code selects a subset of ten percent of hip fracture patients by a pseudorandom number generator (PRNG). The code matches the remaining patients 1:1 to the selected patients by propensity score generated by logistic regression of STTGMA, CCI, or a combination of sex, age, CCI and BMI using greedy nearest neighbor matching without replacement by the MatchIt package for R software. The code then compares matched cohorts by Chi-square, Fisher, or Mann-Whitney U test with significance level of 0.05 representing a 5% chance of significant differences due to random sampling of subjects. The supplied code repeats the random selection, matching and testing process 100,000 times for each matching method. The resultant code output is the frequency of significantly different demographic or outcome parameters among matched cohorts by matching method. This data and statistical code have reuse potential to explore alternative matching schemes. The supplied baseline variables should be robust enough to derive alternative risk scores for each patient which may be included as a matching variable for comparison. The authors also look forward to unexpected ways that this data may be used by readers.

Obese patients with hip fractures are at increased risk of perioperative complications due to both their size and associated medical conditions. The purpose of this report is to describe a technique for intraoperative positioning of obese patients who sustain a hip fracture. A 62-year-old female with a history of morbid obesity (BMI 48.06kg/m²), type II diabetes mellitus, and hypertension presented with a right intertrochanteric fracture and was admitted for operative fixation on a fracture table. A standardized approach for systematic patient positioning and abdominal panniculus taping is described, which facilitates operative repair of the hip fracture using a cephalomedullary nail. This report describes the intraoperative positioning technique of a morbidly obese patient with an intertrochanteric hip fracture in order to highlight specific techniques used to deal with the physical aspects of obesity that can improve the surgical efficiency of the procedure. By positioning obese patients in a standardized way, intraoperative time and complications will be decreased, potentially mitigating some of the risks associated with this patient population.

In this study, we evaluated risk factors for gram-negative fracture-related infection in a mixed cohort of gram-positive and gram-negative fracture-related infections to guide perioperative antibiotic prophylaxis for surgical fixation of fractures. We performed a retrospective review of all patients with fracture who were treated at an urban academic level I trauma center between February 1, 2012, and June 30, 2017. Inclusion criteria were as follows: (1) open or closed fracture with internal fixation; (2) deep, acute to subacute (<6 weeks), culture-positive fracture-related infection; and (3) age 18 years or older. Infections were classified as gram positive, gram negative, or polymicrobial. Demographic, surgical, and postoperative characteristics were compared among groups. Of 3360 patients, 43 (1.3%) had a fracture-related infection (15 gram negative, 14 gram positive, and 14 polymicrobial). Risk factors for gram-negative infection included initial external fixation (P=.038), the need for soft tissue coverage of an open fracture site (P=.039), lower albumin level at the time of infection (P=.005), and hospitalization for longer than 10 days (P=.018). Perioperative gram-negative antibiotic prophylaxis for fracture fixation surgery should be considered for those who have been staged with external fixation, require soft tissue coverage, are at risk for malnutrition in the postoperative period, and have prolonged inpatient hospitalization. [Orthopedics. 20XX;XX(X):xx-xx.].

Introduction: The purpose of this study is to assess the effect of radial head/ neck injury in association with proximal ulna fractures. Methods: Between 2006 and 2020, 107 patients presented to our academic medical center for treatment of a proximal ulna fracture and were enrolled into an IRB-approved database. Radiographs, injury details, and surgical interventions were retrospectively reviewed. Patients were classified as having an isolated proximal ulna fracture (PU), a PU fracture with an associated radial head dislocation (M"“D), or a Monteggia fracture with an associated radial head fracture (M"“V). Clinical and functional outcomes were assessed at follow-up to determine what differences exist between fracture patterns. Statistics were generated using Chi-squared tests for categorical variables and one-way ANOVA tests for numerical variables. Results: While all patients ultimately healed, time to radiographic healing in the PU cohort was shorter at 3.57 ± 1.7 months when compared to the M"“V cohort (5.67 ± 3.8 months) (p < 0.05). At follow-up, patients in the M"“V cohort had poorer elbow pronation and supination when compared to the PU and M"“D cohorts (p < 0.05). Patients within the PU cohort had fewer complications than those in the M"“D and M"“V cohorts (p < 0.05). No differences were found between the three cohorts in regard to rates of reoperation, non-union, wound infection, and nerve compression (p > 0.05). Conclusion: The Monteggia fracture with a concomitant radial head/neck fracture is a more disabling injury pattern when compared to an isolated proximal ulna fracture and Monteggia fracture without an associated radial head/neck fracture.

BACKGROUND:The purpose of this study is to determine if treated psychological depression is associated with poorer functional outcomes in patients who sustain tibial plateau fractures. METHODS:Patients with a tibia plateau fracture were prospectively followed. Functional status was assessed using the Short Musculoskeletal Function Assessment (SMFA) at baseline (pre-injury), 3 months, 6 months, and 1 year post injury. Clinical outcomes were recorded at each follow up visit and radiographic outcomes were obtained from follow up radiographs. Records were reviewed to identify patients who were being treated for major depressive disorder (MDD). SMFA scores and clinical outcomes were compared between the depression and no depression cohorts. RESULTS:420 patients were treated for a tibial plateau fracture and the mean age was 50.83 ± 15.60 years. Forty-two (10%) patients with 42 fractures were being treated for MDD at the time of their fracture. Patients with MDD were older (p = 0.05) and were more likely female (p < 0.01). At baseline, the clinical depression cohort had worse Total SMFA scores compared to the non-depressed cohort (5.90 ± 14.41 vs. 2.69 ± 8.35, p < 0.01). There were no differences in total SMFA score or any SMFA subscores at 3, 6, and 12 months. The incidence of wound complications, reoperations, and radiographic outcomes also did not differ between the cohorts. CONCLUSION/CONCLUSIONS:Despite patients with MDD reporting higher SMFA (poorer) scores at baseline, MDD was not associated with worse injuries, diminished clinical or poorer functional outcomes following tibial plateau fractures.

OBJECTIVES/OBJECTIVE:To assess the outcomes of patients who underwent closed reduction and percutaneous pinning (CRPP) with cannulated screws for treatment of a displaced femoral neck fracture (DFNF) as they were deemed too high risk to undergo hemiarthroplasty (HA). DESIGN/METHODS:Prospective cohort study. SETTING/METHODS:One urban academic medical center. PATIENTS/PARTICIPANTS/METHODS:Sixteen patients treated with CRPP and 32 risk-level-matched patients treated with HA. INTERVENTION/METHODS:CRPP for patients with DFNFs who were deemed too ill to undergo HA. The concept being that CRPP would aid in pain control and facilitate mobilization and if failed, the patient could return electively after medical optimization for conversion to arthroplasty. MAIN OUTCOME MEASUREMENTS/METHODS:Complications, readmissions, mortality, inpatient cost, and functional status. RESULTS:The CRPP cohort had a greater incidence of exacerbations of chronic medical conditions or new onset of acute illness and an elevated mean American Society of Anesthesiologist score. There were no differences in discharge location, length of stay, major complication rate, ambulation before discharge, or 90-day readmission rate. Patients undergoing CRPP were less likely to experience minor complications including a significantly decreased incidence of acute blood loss anemia. Three patients (18.7%) in the CRPP cohort underwent conversion to HA or THA. There was no difference in inpatient, 30-day, or 1-year mortality. CONCLUSION/CONCLUSIONS:In the acutely ill patients with DFNFs, "damage control" fixation with CRPP can be safely performed in lieu of HA to stabilize the fracture in those unable to tolerate anesthesia or the sequelae of major surgery. Patients should be followed closely to evaluate the need for secondary surgery. LEVEL OF EVIDENCE/METHODS:Therapeutic Level III. See Instructions for Authors for a complete description of Levels of Evidence.

Hip fractures are increasingly common and often occur in patients with complex medical comorbidities. There remains a need for a safer anesthetic option for these patients for the operative repair of their injury other than general or neuraxial anesthesia. At our institution, for medically complex and physiologically tenuous patients, we perform Monitored Anesthesia Care and Soft-Tissue Infiltration of Local Anesthetic (MAC-STILA) when performing percutaneous fixation techniques for hip fractures. We describe our technique here.

OBJECTIVES/OBJECTIVE:To examine the feasibility of a novel anesthetic option for hip fracture fixation with short cephalomedullary nails. DESIGN/METHODS:Retrospective cohort study. SETTING/METHODS:An urban, academic level 1 trauma center, a tertiary care academic medical center, and an orthopedic specialty hospitalPatients/Participants: 20 recent and 40 risk-matched (1:1:1 by anesthesia type) historical hip fracture patients. INTERVENTION/METHODS:All patients with an OTA 31.A1-3 IT hip fracture presenting from October 1st 2019 - March 31st, 2020 treated with a short cephalomedullary nail (CMN) underwent a new intraoperative anesthesia protocol using monitored anesthesia care (MAC) and soft-tissue infiltration with local anesthesia (STILA). MAIN OUTCOME MEASUREMENTS/METHODS:Intraoperative measures, postoperative pain scores, narcotic and acetaminophen use, hospital quality measures, and inpatient cost. RESULTS:A total of 60 patients (20 each: MAC, general, spinal) were identified. There were differences among the groups regarding mean minimum and maximum intraoperative heart rate with MAC-STILA protocol demonstrating the best maintenance of normal heart rate parameters (60-100 bpm). For the first 3 hours post-operatively, MAC-STILA patients reported consistently lower pain scores (VAS <1) than spinal or general patients (VAS>1). Through 48 hours postoperatively, MAC-STILA narcotic usage was similar to that of the spinal cohort and approximately five times less than the general cohort. There were no differences in procedural time, length of stay, minor or major complications, inpatient and 30-day mortality, or 30-day readmissions, or post-operative ambulatory distance. There was no difference in inpatient cost among cohorts. CONCLUSIONS:This feasibility study demonstrates safety for the MAC-STILA protocol with comparison to spinal and general anesthesia. The MAC-STILA protocol is a viable option for treatment of OTA 13.A1-3 IT fractures with a short CMN, and may be the preferred method for patients with severe medical co-morbidities or relative contraindications to general and/or spinal anesthesia. LEVEL OF EVIDENCE/METHODS:Therapeutic Level III. See Instructions for Authors for a complete description of Levels of Evidence.

Purpose/UNASSIGNED:To assess risk factors and associated outcomes of acute kidney injury (AKI) in hip fracture patients. Methods/UNASSIGNED:Risk factors for AKI were identified by multivariate logistic regression. AKI patients were matched to patients who did not experience AKI using a validated trauma triage score. Comparative analyses between matched groups were performed. Results/UNASSIGNED:Risk factors of AKI included increasing Charlson Comorbidity Index and use of anticoagulation medications. AKI was associated with increased likelihood of medical complications and longer, more costly hospital stays. Discussion/UNASSIGNED:

Introduction/UNASSIGNED:Despite the recommendation for postoperative orthopedic follow-up after a hip fracture in elderly patients, many patients do not return for these visits. In this study, we attempt to determine if early follow-up (<4 weeks post-discharge) changes orthopedic post-operative management. Materials and Methods/UNASSIGNED:1232 patients aged > 55 years old who underwent operative fixation for hip fractures were enrolled into an orthopedic trauma registry and followed from hospitalization through one year. Demographics, comorbidities, injury severity, and hospital course data were collected. Need for readmission and orthopedic follow-up were ascertained through chart review. Results/UNASSIGNED:417 patients (33.8%) patients did not return for any follow-up and 30 (2.4%) patients died <30 days from discharge. 370 (45.5%) patients had early orthopedic follow-up ≤28 days after discharge. 317 (38.9%) patients were seen ≥29 days after discharge (late follow-up). 127 (15.6%) patients returned for isolated non-orthopedic care. There were 23 (6.2%) readmissions in the early group, 17 (5.4%) in the late group, and 24 (18.9%) in the no follow-up group (p < 0.001). Patients discharged home were more likely to present for early follow-up compared to those with late and non-orthopedic follow-up (p = 0.002), however there was no difference in readmission rates between those discharged home vs. SNFs/SARs. Discussion/UNASSIGNED:Patients who received isolated non-orthopedic follow-up within 4 weeks of surgery experienced more hospital readmissions than those with follow-up in that time period; however, these readmissions were primarily due to medical issues. There was no difference in orthopedic-related readmissions and changes in orthopedic management between groups. Patients discharged to SNFs/SARs did not present for early orthopedic as often as those discharged home. Conclusion/UNASSIGNED:Early orthopedic follow up after hip fracture care does not change post-operative management in these patients and has implications for value-based care. Level of Evidence/UNASSIGNED:Prognostic Level III.