Financial Implications for the Treatment of Medicare Patients With Isolated Intertrochanteric Femur Fractures: Disproportionate Losses Among Healthier Patients

Risk factors for cut-throughs in intertrochanteric hip fracture fixation Tip-Apex Distance (TAD) <10 mm and Apex-to-Center <4 mm

OBJECTIVES

TAD > 25 mm is a risk factor for cut-out in intramedullary nailing. Less attention has been given to the risk factors for central cut-through and the possible outcomes of TAD <10 mm. Furthermore, the risk of cut-through depending on minimum depth on either anterior-posterior (AP) or lateral views has not been explored. The goal of this study is to outline the parameters that increase risk of cut-through in intertrochanteric hip fractures.

METHODS

A retrospective review of 2128 intertrochanteric hip fractures admitted to a single level 1 academic trauma center from 2014 - 2023 was conducted. Variables included patient and operative characteristics, fracture fixation device, fracture type based on OTA/AO 2018 classification, TAD, neck-shaft angle and radiographic and clinical outcomes.

RESULTS

TAD <10 millimeters carried a significantly higher risk for lag screw and blade cut-through. Cut-through risk increased significantly when either AP or lateral apex-to-center distance was <4 millimeters, including when comparing fracture reduction quality for a cohort including sliding hip screws, lag screws and blades. Cut-out complications in this cohort only occurred with a TAD >10 mm and was significantly more likely to occur with TAD >25 mm, similar to prior studies.

CONCLUSION

TAD optimization between 10 and 25 mm reduces risk of both cut-out and cut-through and maintenance of 4 mm of distance between apex-to-center distance may help decrease the risk of cut-through complications.

Trends in Medicare Utilization and Reimbursement for Intertrochanteric Femur Fractures: A 21-Year Review

PURPOSE

Sliding hip screw (SHS) and intramedullary (IMN) constructs are commonly utilized treatments for intertrochanteric (IT) femur fractures. The aim of this study was to assess the economic and utilization trends in the management of IT fractures among the Medicare population over the last 21 years.

METHODS

A review of the publicly available Medicare Part B National Summary Data File for years 2000-2021 was performed. Collected data included true physician reimbursement and utilization numbers for all CPT codes pertaining to fixation of IT fractures with either SHS or IMN.

RESULTS

A total of 1,361,112 IMN implants and 739,032 SHS implants were billed to Medicare for intertrochanteric femur fractures during the studied timeline. In this 21-year span, utilization of IMN increased 695% (9648-76,667), while utilization of SHS decreased by 96% (94,223-4224). After adjusting for inflation, the average physician reimbursement for SHS decreased by 34%, while IMN decreased by 41%. Absolute physician reimbursement was found to be $943.36 for SHS and $999.88 for IMN constructs.

CONCLUSION

Intramedullary implants are being increasingly utilized while sliding hip screw, and intramedullary construct reimbursement continues to decrease for intertrochanteric femur fracture fixation. These trends suggest that opting for a sliding hip screw may be more cost-effective when the fracture pattern allows for either construct.

Utilization Trends, Patient-Demographics, and Comparison of Medical Complications of Sliding Hip Screw or Intramedullary Nail for Intertrochanteric Fractures: A Nationwide Analysis from 2005 to 2014 of the Medicare Population

Background

Studies demonstrate an increase incidence of intertrochanteric fractures within the United States. Matched studies evaluating intertrochanteric fractures managed with either sliding hip screw (SHS) or intramedullary nail (IMN) within the Medicare population are limited. The purpose of this study was to investigate: 1) annual utilization trends; 2) patient demographics; and 3) complications including mortality.

Methods

A retrospective query using a nationwide database was performed. Patients undergoing SHS or IMN for intertrochanteric fractures were identified. The query yielded a total of 37,929 patients utilizing SHS (n = 11,665) or IMN (n = 26,264). Patients were matched 1:1 based on comorbidities. Primary outcomes included: utilization trends, patient demographics, 90-day complications, and 90-day readmission rates. Linear regression analyses were used to compare utilization trends. Pearson's c2 analyses were used to compare patient-demographics, medical complications, and 90-day readmission rates. A p-value less than 0.05 was considered statistically significant.

Results

Linear regression analysis demonstrated a statistically significant decrease in utilization of SHS for IT fractures (p<0.0001); whereas utilization for IMN stayed consistent (p=0.36). IMN had significantly higher prevalence of comorbidities compared to SHS, notably, hyperlipidemia (70.6 vs. 62.6%; p<0.0001). Based on 1:1 match, IMN patients had significantly higher rates of 90-day medical complications, such as respiratory failure (11.0 vs. 8.1%; p<0.0001) and VTE (4.2 vs. 3.2%; p<0.001; however, there was not a statistical difference in postoperative infection (1.4 vs. 1.5%, p=0.06). There was no statistical difference in 90-day mortality between IMN and SHS cohorts (0.19 vs .13%, p = 0.249).

Conclusion

This analysis demonstrates a difference in utilization of SHS and IMN for patients with IT fractures. Patients with IMN had significantly higher prevalence of comorbid conditions and incidence of 90-day postoperative complications compared to SHS patients. The study can be utilized by orthopaedic surgeons to potentially anticipate healthcare utilization depending on implant selection. Level of Evidence: III.

Variations in Cost and Readmissions of Patients in the Bundled Payment for Care Improvement Bundle for Hip and Femur Fractures

Introduction

The Bundled Payment for Care Improvement (BPCI) for hip and femur fractures is an effort to increase care quality and coordination at a lower cost. The bundle includes all patients undergoing an operative fixation of a hip or femur fracture (diagnosis-related group codes 480-482). This study aims to investigate variance in the hospital cost and readmission rates for patients within the bundle.

Materials and Methods

The study is a retrospective analysis of patients ≥65 years old billed for a diagnosis-related groups 480-482 in 2016 in the National Readmission Database. Cost of admission and length of stay were compared between patients who were or were not readmitted. Regression analysis was used to determine the effects of the primary procedure code and anatomical location of the femur fracture on costs, length of stay, and readmission rates.

Results

Patients that were readmitted within 90 days of surgery had an increased cost on initial admission ($18,427 vs $16,844, P < .0001), and an increased length of stay (6.24 vs 5.42, P < .0001). When stratified by procedure, patients varied in readmission rates (20.7% vs 19.6% vs 21.8%), initial cost, and length of stay (LOS). Stratification by anatomical location also led to variation in readmission rates (20.7% vs 18.3% vs 20.6%), initial cost, and LOS.

Conclusion

The hip and femur fractures bundle includes a great number of procedures with variance in cost, readmission, and length of stay. This amount of variation may make standardization difficult and may put the hospital at potential financial risk.

Trend and Economic Implications of Implant Selection in the Treatment of Intertrochanteric Hip Fractures: A Review of the American Board of Orthopaedic Surgery Database From 2007 to 2017

INTRODUCTION

Intertrochanteric (IT) fractures are estimated to burden the healthcare system six billion dollars annually. Previous studies have documented a trend of early-career orthopaedic surgeons favoring intramedullary nails (IMNs) for these fractures, despite multiple randomized controlled trials demonstrating no evidence for improved patient outcomes when compared with sliding hip screws (SHSs). The purpose of this study was to report the trend of implant utilization for IT fracture fixation from 2007 to 2017.

METHODS

The American Board of Orthopaedic Surgery (ABOS) Part II (oral) database was used to identify IT fractures (International Classification of Diseases, 9th revision, code 820.21 or 820.31, and 10th revision, code S72.14) over a 10-year period (2007 to 2017). The cases were categorized by IMN or SHS fixation by surgeon-reported Current Procedural Terminology codes. Utilization of the devices was analyzed according to year, and the implants were compared for outcomes, complications, and cost.

RESULTS

As of 2017, 92.4% of IT fractures were being fixed through IMN, representing a 49.1% increase in the number of IMN devices used during the course of this study. SHS had significantly lower medical complication rate (21.3%) and readmittance rate (4.0%) compared with the IMN (medical complication: 26.9%; P < 0.01) (readmittance rate: 5.4%; P = 0.02). SHS also had significantly lower rates of anemia (5.2%) and patient expiration (4.8%) compared with IMN (anemia: 10.2%; P < 0.01) (patient expiration: 6.1%; P = 0.01). Overall surgical complication rates, reoperative rates, and anesthetic complications did not differ between constructs. A cost differential of $671,812 was found from the 2007-projected distribution, which rose to $3,911,211.00 across the entire 11-year duration of the study for the population.

DISCUSSION

Early-career orthopaedic surgeons continue to use a more expensive implant for IT fractures despite limited evidence for improved outcomes.

LEVEL OF EVIDENCE

Level III; Retrospective Cohort Study.

Diagnosis-Related Group (DRG)-Based Prospective Hospital Payment System can be well adopted for Acute Care Surgery: Taiwanese Experience with Acute Cholecystitis

BACKGROUND

Laparoscopic cholecystectomy (LC) is a common procedure for cholelithiasis paid by diagnostic-related groups (DRGs) systems. However, acute cholecystitis (AC) patients usually have heterogeneous conditions that compromise the successful implementation of DRGs. We evaluated the quality/efficiency of treating AC patients under the DRG system in Taiwan.

METHODS

All AC patients who underwent LC between October 2015 and December 2016 were included. Patient demographics, treatment outcomes, and financial results were analyzed. Patients were reimbursed by one of the two DRG schemes based on their comorbidities/complications (CC): DRG-1, LC without CC; and DRG-2, LC with CC. Hospitals were reimbursed the costs incurred if they were below the lower threshold (balanced sector); with the outlier threshold if costs were between the lower and outlier thresholds (profitable sector); and with the outlier threshold plus 80% of the exceeding cost if costs were higher than the outlier threshold (profit-losing sector).

RESULTS

Among 246 patients, 114 were paid by DRG-1, and 132 were by DRG-2. In total, 195 of 246 patients underwent LC within 1 day after admission, and patients with mild AC had shorter hospital stays than those with moderate or severe AC. The complication rate was 7.3% with only one mortality. In total, 92.1% of patients in DRG-1 and 90.9% of patients in DRG-2 were profitable. The average margin per patient was 11,032 TWD for DRG-1 and 24,993 TWD for DRG-2.

CONCLUSIONS

DRGs can be well adopted for acute care surgery, and hospitals can still provide satisfactory services without losing profit.