Costs Associated With Geriatric Ankle Fractures

Management of High-Risk Ankle Fractures

Successful outcomes in the surgical treatment of the fractured ankle require methods that respect the soft tissue envelope and establish a stable mortise for functional rehabilitation. Ankle fractures in patients with osteopenia and in diabetic patients with deranged bone remodeling constitute high-risk injuries that may result in catastrophic complications. These patients present unique care challenges and should not be approached in the same manner as their healthy counterparts. We present the principles of treatment in high-risk ankle fractures, operative treatment philosophy illustrating techniques frequently used at our institution, and a review of current literature.

Foot, ankle, and leg problems in Australian primary care: consultation patterns, management practices, and costs

OBJECTIVE

To explore consultation patterns, management practices, and costs of foot, ankle, and leg problems in Australian primary care.

STUDY DESIGN

We analyzed data from the Bettering the Evaluation and Care of Health program, April 2000 to March 2016. Foot, ankle, and leg problems were identified using the International Classification of Primary Care, Version 2 PLUS terminology. Data were summarized using descriptive statistics examining general practitioner (GP) and patient characteristics associated with a foot, ankle, or leg problem being managed. Cost to government was estimated by extracting fees for GP consultations, diagnostic imaging, and pathology services from the Medicare Benefits Schedule (MBS) database. Costs for prescription-only medicines were extracted from the Pharmaceutical Benefits Schedule and for nonprescribed medications, large banner discount pharmacy prices were used.

RESULTS

GPs recorded 1,568,100 patient encounters, at which 50,877 foot, ankle, or leg problems were managed at a rate of 3.24 (95% confidence intervals [CIs] 3.21-3.28) per 100 encounters. The management rate of foot, ankle, or leg problems was higher for certain patient characteristics (older, having a health care card, socioeconomically disadvantaged, non-Indigenous, and being English speaking) and GP characteristics (male sex, older age, and Australian graduate). The most frequently used management practice was the use of medications. The average cost (Australian dollars) per encounter was A$52, with the total annual cost estimated at A$256m.

CONCLUSIONS

Foot, ankle, and leg problems are frequently managed by GPs, and the costs associated with their management represent a substantial economic impact in Australian primary care.

Complications After Surgical Treatment of Geriatric Ankle Fractures

The incidence of geriatric ankle fractures is rising and the potential for complications is high in this population. Little is known about factors associated with increased postoperative complications after surgical fixation of ankle fractures in older-age patients. The purpose of this retrospective cohort study was to assess the epidemiology and risk factors for complications after surgically treated ankle fractures in geriatric patients. All patients who were 65 years or older and had a surgically treated ankle fracture were included. Pilon fractures, patients who were initially treated conservatively or who had less than 1 month of follow-up were excluded. Postoperative complications, demographic-, fracture- and surgical data of 282 patients were recorded from two level 2 trauma centers between 2012 and 2017. A total of 87 (30.9%) patients developed a complication, of which wound related complications were most frequently reported. Superficial and deep wound infections were observed in 27 (9.6%) and 18 (6.4%) patients, respectively. Multivariate regression analysis demonstrated increased age to be an independent predictive variable for the occurrence of postoperative complications (odds ratio 1.04; 95% confidence interval 1.00-1.09), while cast immobilization for more than 2 weeks was a protective factor for the development of wound related complications (odds ratio 0.34; 95% confidence interval 0.17-0.66). In conclusion, the incidence of postoperative complications among geriatric patients after surgical treatment of ankle fractures is high and patients should be informed accordingly.

[Ankle fractures in older patients : What should we do differently?]

As a result of the demographic developments ankle fractures in older patients are part of routine trauma surgery. Due to comorbidities, such as diabetes mellitus, reduced bone quality and limited compliance in follow-up treatment, these fractures are prone to complications. The primary goal in the treatment of older patients with ankle fractures is to maintain mobility. In contrast to young patients most fractures are unstable pronation-abduction injuries. In the diagnostics the recognition and optimization of factors influencing the outcome, such as the blood perfusion and the generous use of computed tomography (CT) are recommended. As in the case of younger patients, conservative treatment is reserved for stable fracture forms and, if there are contraindications, should also be initiated in the case of unstable injuries. The choice of approaches is different for surgical treatment, which is adapted to the soft tissues, if necessary minimally invasive and increasingly carried out by a posterolateral approach. The initial transfixation can reduce soft tissue problems. Special surgical techniques and implants that provide a high level of stability, such as dorsal plate positioning, hook plates, angular stable plate systems and intramedullary systems as well as additional options, such as tibia pro fibula constructs are used. Primary retrograde nail arthrodesis is reserved as a salvage procedure only for exceptional cases. As part of the follow-up treatment, an interdisciplinary approach with respect for and optimization of concomitant diseases seems to make sense.

Predicting Length of Stay and Readmissions After an Ankle Fracture Using a Risk Stratification Tool (STTGMA)

OBJECTIVES

To determine the usefulness of a validated trauma triage score to stratify short-term outcomes including hospital length of stay (LOS), in-hospital complications, discharge location, and rate of readmission after an ankle fracture.

DESIGN

Retrospective cohort.

SETTING

Level 1 trauma center.

PATIENTS

Four hundred fifteen patients, age ≥55 with 431 ankle fractures.

INTERVENTION

Closed or open reduction.

MAIN OUTCOME MEASUREMENTS

Score for Trauma Triage in the Geriatric and Middle-Aged (STTGMA).

RESULTS

Of the 415 patients, 38% were male, 72% were white, and the mean age was 66 years. The mean LOS was 4.4 days, and this increased from 2.6 days in the minimal-risk group to 11.8 days in the high-risk group (P < 0.001). Similarly, 74% of minimal-risk patients were discharged home versus 13% of high-risk patients (P < 0.001). There were 19 readmissions (4.6%) within 30 days, ranging from 1.5% to 10% depending on the risk cohort (P = 0.006). Seventy-three patients (18%) experienced an in-hospital complication. On multiple linear regression, moderate- and high-risk STTGMA stratification was predictive of a longer hospital LOS, and moderate-risk STTGMA stratification was predictive of subsequent readmission after injury.

CONCLUSIONS

Calculation of the STTGMA score is helpful for stratifying patients according to hospital LOS and readmission rates, which have substantial bearing on resource utilization and cost of care. The STTGMA tool may allow for effective identification of patients to potentially ameliorate these common issues and to inform payers and policymakers regarding patients at risk for greater costs of care.

LEVEL OF EVIDENCE

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Ability of a Risk Prediction Tool to Stratify Quality and Cost for Older Patients With Operative Ankle Fractures

OBJECTIVES

To investigate the ability of a validated geriatric trauma risk prediction tool to stratify hospital quality metrics and inpatient cost for middle-aged and geriatric patients admitted from the emergency department for operative treatment of an ankle fracture.

DESIGN

Prospective cohort study.

SETTING

Single Academic Medical Center.

PATIENTS

Patients 55 years of age and older who sustained a rotational ankle fracture and who were treated operatively during their index hospitalization.

INTERVENTION

Calculation of validated trauma triage score, Score for Trauma Triage in Geriatric and Middle Aged (STTGMA), using patient demographics, injury severity, and functional status. Patients were stratified into groups based on scores to create a minimal-, low-, moderate-, and high-risk cohort.

MAIN OUTCOME MEASUREMENTS

Length of stay, complications, need for intensive care unit-/step-down unit-level care, discharge location, and index admission costs.

RESULTS

Fifty ankle fracture patients met inclusion criteria. The mean length of stay was 7.8 ± 5.2 days with a significant difference among the 4 risk groups (4.6-day difference between low and high risk). 73.1% of minimal-risk patients were discharged home compared with 0% of high-risk patients. There was no difference in complication rate or in need for intensive care unit-level care between groups. However, high-risk patients had a mean total inpatient cost 2 times greater than that of minimal-risk patients.

CONCLUSION

The Score for Trauma Triage in Geriatric and Middle-Aged tool is able to meaningfully stratify older patients with ankle fracture who require operative fixation regarding hospital quality metrics and cost. This information may allow for efficient targeted reductions in costs while optimizing outcomes.

LEVEL OF EVIDENCE

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Economic Burden of Inpatient Admission of Ankle Fractures

BACKGROUND

Ankle fractures are among the most prevalent traumatic orthopaedic injuries. A large proportion of patients sustaining operative ankle fractures are admitted directly from the emergency department prior to operative management. In the authors' experience, however, many closed ankle injuries may be safely and effectively managed on an outpatient basis. The aim of this study was to characterize the economic impact of routine inpatient admission of ankle fractures.

METHODS

A retrospective review of all outpatient ankle fracture surgery performed by a single foot and ankle fellowship-trained surgeon at a tertiary level academic center in 2012 was conducted to identify any patients requiring postoperative inpatient admission. The National Inpatient Sample was queried for operative management of lateral malleolus, bimalleolar, and trimalleolar ankle fractures in 2012 with regard to national estimates of total volume and length of stay by age. The maximum allowable Medicare inpatient facility reimbursements for diagnosis related group 494 and Medicare outpatient facility reimbursements for Current Procedural Terminology codes 27792, 27814, and 27822 were obtained from the Medicare Acute Inpatient Prospective Pricer and the Medicare Outpatient Pricer Code, respectively. Private facility reimbursement rates were estimated at 139% of inpatient Medicare reimbursement and 280% of outpatient reimbursement, as described in the literature. Surgeon and anesthesiologist fees were considered similar between both inpatient and outpatient groups. A unique stochastic decision-tree model was derived from probabilities and associated costs and evaluated using modified Monte Carlo simulation.

RESULTS

Of 76 lateral malleolar, bimalleolar, and trimalleolar ankle fracture open reduction internal fixation cases performed in 2012 by the senior author, 9 patients required admission for polytrauma, medical comorbidities, or age. All 67 outpatients were discharged home the day of surgery. In the 2012 national cohort analyzed, 48,044 estimated inpatient admissions occurred postoperatively for closed ankle fractures. The median length of stay was 3 days for each admission and was associated with an estimated facility reimbursement ranging from $12,920 for Medicare reimbursement of lateral malleolus fractures to $18,613 for private reimbursement of trimalleolar fractures. Outpatient facility reimbursements per case were estimated at $4,125 for Medicare patients and $11,459 for private insurance patients. Nationally, annual inpatient admissions accounted for $796,033,050 in reimbursements, while outpatient surgery would have been associated with $419,327,612 for treatment of these same ankle fractures.

CONCLUSION

In the authors' experience, closed lateral malleolus, bimalleolar, and trimalleolar fractures were safely and effectively treated on an outpatient basis. Routine perioperative admission of patients sustaining ankle fractures likely results in more than $367 million of excess facility reimbursements annually in the United States. Even if a 25% necessary admission rate were assumed, routine inpatient admission of ankle fractures would result in a $282 million excess economic burden annually in the United States. Although in certain cases, inpatient admission may be necessary, with value-based decision making becoming increasingly the responsibility of the orthopaedic surgeon, understanding the implications of inpatient stays for ankle fracture surgery can ultimately result in cost savings to the US health care system and patients individually.

LEVEL OF EVIDENCE

Level III, comparative series.

Ankle fractures in the elderly: risks and management challenges

Ankle fractures are the third most common osseous injury in the elderly, behind hip and distal radius fractures. While there is a rich history of clinical advancement in the timing, technique, perioperative management, and associated risks of hip fractures, similar evaluations are only more recently being undertaken for ankle fractures. Traditionally, elderly patients were treated more conservatively; however, nonoperative management has been found to be associated with increased mortality. As such, older and less healthy patients have become operative candidates. The benefits of geriatric/orthopedic inpatient comanagement that have been well elucidated in the hip fracture literature also seem to improve outcomes in elderly patients with ankle fractures. One of the orthopedist’s roles is to recognize the complexities of osteoporotic bone fixation and optimize wound healing potential. Though the immediate cost of this surgical approach is inevitably higher, the ultimate cost of long-term care has been found to be substantially reduced. It is important to consider the mortality and morbidity benefits and cost reductions of operative intervention and proper inpatient care of geriatric ankle fractures when they present to the emergency department or the office.