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Retrospective.To assess final outcomes in patients with early-onset scoliosis (EOS) who underwent growth-preserving instrumentation (GPI). Various types of growth-preserving instrumentation (GPI) are frequently employed, but until recently had not been utilized long enough to assess final outcomes.GPI "graduates" with multi-level congenital curves were identified. Graduation was defined as a final fusion or 5 years of follow-up without planned future surgeries. Outcomes included radiographic parameters and complications.26 patients were included. 11 had associated diagnoses; eight had fused ribs. 17 were treated with traditional growing rods, seven with vertically expandable prosthetic ribs, and two with Shilla procedures. The mean GPI spanned 12.3 levels including 10.7 motion segments, age at index surgery was 5.5 years, treatment spanned 7.5 years, and follow-up was 9.2 years. 24 patients underwent final fusion. Mean major curve decreased from 73° to 49° with index surgery (p 0.01) and remained unchanged through a final follow-up. Final major curve was 40° in 9 patients (35%), 40°-60° in 11 patients (42%), and 60° in 6 patients (23%). None worsened throughout treatment. Mean T1-T12 height increased 2.4 cm with index surgery (p = 0.02) and 5.4 cm total (p 0.01). T1-T12 height increased in all patients and was ultimately 18 cm in 10 patients (38%), 18-22 cm in 10 patients (38%), and 22 cm in 6 patients (23%). On average, there were 2.6 complications per patient, including 1.7 implant failures. 12 patients (46%) experienced ≥ 3 complications; four patients (15%) experienced none.We observed successful prevention of deformity progression but substantial residual deformity among GPI graduates with multi-level congenital EOS. Most coronal curve correction was attained during GPI implantation; thoracic height improved throughout treatment. While some favorable results were found, treatment strategies allowing improved deformity correction would be valuable for this challenging population.Therapeutic-III.

Bundled payments are meant to reduce costs and improve quality of care. Without adequate risk adjustment, bundling may be inequitable to providers and restrict access for certain patients. This study examines patient factors that could improve risk stratification for the Comprehensive Care for Joint Replacement (CJR) bundled-payment program.Ninety-five thousand twenty-four patients meeting the CJR criteria were retrospectively reviewed using administrative Medicare data. Multivariable regression was used to identify associations between patient factors and traditional (fee-for-service) Medicare reimbursement over the bundle period.Average reimbursement was $18,786 ± $12,386. Older age, male gender, cases performed for hip fractures, and most comorbidities were associated with higher reimbursement (P.05), except dementia (lower reimbursement; P.01). Stratification incorporating these factors displayed greater accuracy than the current CJR risk adjustment methods (RMore robust risk stratification could provide more equitable reimbursement in the CJR program.Large database analysis; Level III.

Retrospective.To determine how the pre- and postoperative three-dimensional (3D) sagittal profiles of Lenke 5 curves in idiopathic scoliosis patients compare to unaffected controls. Prior research evaluating the sagittal plane of Lenke 5 (thoracolumbar/lumbar) curves in 2D suggests that the major curve is hypolordotic.Patients with Lenke 5 curves treated with thoracolumbar/lumbar posterior fusion who had biplanar radiography (with 3D reconstruction) preoperatively (Pre) and 2+ years postoperatively (PO2Y) were included. A cohort of similarly aged controls (C) without spinal pathology was identified. The following 3D sagittal measurements were compared both pre- and postoperatively to controls: T1-T10, T10-L3, L3-S1, and pelvic incidence (PI). Kyphosis is designated by positive values, and lordosis by negative values.Nineteen Lenke 5 patients and 125 controls were included. Preoperatively, Lenke 5 patients were hypokyphotic relative to controls from T1 to T10 (30° ± 13° vs. 42° ± 9°, p 0.001) and hyperlordotic from T10 to L3 (- 26° ± 15° vs. - 13° ± 12°, p 0.001). Lenke 5 spines were less lordotic from L3 to S1 (- 41° ± 9° vs. - 47° ± 7°, p = 0.004). PI was similar between groups (Lenke 5 Pre: 48° ± 13°, C: 46° ± 10°, p = 0.49). Postoperatively, the area of principal deformity (T10-L3) remained hyperlordotic (PO2Y: - 23° ± 10° vs. C: - 13° ± 12°, p 0.001). The proximal and distal uninstrumented segments demonstrated spontaneous sagittal correction, becoming similar to controls: T1-T10 (PO2Y: 41° ± 12° vs. C: 42° ± 9°, p = 0.421) and L3-S1 (PO2Y: - 48° ± 9° vs. C: - 47° ± 7°, p = 0.56).When measured in 3D, Lenke 5 curves were more lordotic than controls in the periapical region of the major coronal curve. Posterior correction improved sagittal alignment, including spontaneous sagittal correction of the unfused segments. However, ~ 10° of hyperlordosis persisted in the instrumented/fused T12-L3 segment. Intraoperative correction strategies should take this preoperative increase in 3D sagittal deformity into account during rod contouring as well as compression/distraction to restore more normal sagittal alignment.III.

The U.S. Centers for MedicareMedicaid Services (CMS) has been considering the implementation of a mandatory bundled payment program, the Surgical Hip and Femur Fracture Treatment (SHFFT) model. However, bundled payments without appropriate risk adjustment may be inequitable to providers and may restrict access to care for certain patients. The SHFFT proposal includes adjustment using the Diagnosis-Related Group (DRG) and geographic location. The goal of the current study was to identify and quantify patient factors that could improve risk adjustment for SHFFT bundled payments.We retrospectively reviewed a 5% random sample of Medicare data from 2008 to 2012. A total of 27,898 patients were identified who met SHFFT inclusion criteria (DRG 480, 481, and 482). Reimbursement was determined for each patient over the bundle period (the surgical hospitalization and 90 days of post-discharge care). Multivariable regression was performed to test demographic factors, comorbidities, geographic location, and specific surgical procedures for associations with reimbursement.The average reimbursement was $23,632 ± $17,587. On average, reimbursements for male patients were $1,213 higher than for female patients (p0.01). Younger age was also associated with higher payments; e.g., reimbursement for those ≥85 years of age averaged $2,282 ± $389 less than for those aged 65 to 69 (p0.01). Most comorbidities were associated with higher reimbursement, but dementia was associated with lower payments, by an average of $2,354 ± $243 (p0.01). Twenty-two procedure codes are included in the bundle, and patients with the 3 most common codes accounted for 98% of the cases, with average reimbursement ranging from $22,527 to $24,033. Less common procedures varied by$20,000 in average reimbursement (p0.01). DRGs also showed significant differences in reimbursement (p0.01); e.g., DRG 480 was reimbursed by an average of $10,421 ± $543 more than DRG 482. Payments varied significantly by state (p ≤ 0.01). Risk adjustment incorporating specific comorbidities demonstrated better performance than with use of DRG alone (r = 0.22 versus 0.15).Our results suggest that the proposed SHFFT bundled payment model should use more robust risk-adjustment methods to ensure that providers are reimbursed fairly and that patients retain access to care. At a minimum, payments should be adjusted for age, comorbidities, demographic factors, geographic location, and surgical procedure.

The Centers for MedicareMedicaid Services (CMS) recently imposed penalties against hospitals with above-average 30-day readmission rates following total joint arthroplasty (TJA). Hospitals must decide whether investments in readmission prevention are worthwhile. This study examines the financial incentives associated with unplanned readmissions before and after invocation of these penalties.Financial data were reviewed for 2028 consecutive primary TJAs performed on Medicare beneficiaries over a 2-year period at an urban academic health system. Readmission penalties were estimated in accordance with CMS policies.Unplanned readmissions generated a $4416 median contribution margin. The initial hospitalizations (when the TJA was performed) were financially unfavorable for patients subsequently readmitted relative to those not readmitted due to increased costs of care (P = .002), but these costs were more than outweighed by the increased reimbursement earned during the readmission (P.001), ultimately making readmitted patients financially preferable (P.001). Going forward, penalties will be levied for risk-adjusted readmission rates above the national rate of 4.8%. For the institution under review, the penalty per readmission outweighs the financial gains earned through readmission by $12,184, resulting in a net loss from readmissions if the rate exceeds 6.5%. It will be financially optimal to maintain a readmission rate (after risk adjustment) equal to the national average but exceeding that rate will be $7768 more expensive per readmission than undershooting that target.If our results are generalizable, unplanned Medicare readmissions have traditionally been financially beneficial, but CMS penalties outweigh this benefit. Thus, penalties should incentivize institutions to maintain below-average arthroplasty readmissions rates.

Clinic wait time is considered an important predictor of patient satisfaction. The goal of this study was to determine whether patient satisfaction among orthopedic patients is associated with clinic wait time and time with the provider. The authors prospectively enrolled 182 patients at their outpatient orthopedic clinic. Clinic wait time was defined as the time between patient check-in and being seen by the surgeon. Time spent with the provider was defined as the total time the patient spent in the examination room with the surgeon. The Consumer Assessment of Healthcare Providers and Systems survey was used to measure patient satisfaction. Factors associated with increased patient satisfaction included patient age and increased time with the surgeon ( P =.024 and P =.037, respectively), but not clinic wait time ( P =.625). Perceived wait time was subject to a high level of error, and most patients did not accurately report whether they had been waiting longer than 15 minutes to see a provider until they had waited at least 60 minutes ( P =.007). If the results of the current study are generalizable, time with the surgeon is associated with patient satisfaction in orthopedic clinics, but wait time is not. Further, the study findings showed that patients in this setting did not have an accurate perception of actual wait time, with many patients underestimating the time they waited to see a provider. Thus, a potential strategy for improving patient satisfaction is to spend more time with each patient, even at the expense of increased wait time. [ Orthopedics. 2017; 40(1):43–48.]

To identify and quantify patient- and procedure-related risk factors for post-arthroscopic knee infections using a large dataset.An administrative health care database including 8 years of records from 2 large commercial insurers and Medicare (a 5% random sample) was queried to identify all knee arthroscopies performed on patients aged at least 15 years using Current Procedural Terminology (CPT) codes. Each CPT code was designated as a high- or low-complexity procedure, with the former typically requiring accessory incisions or increased operative time. Deep infections were identified by a CPT code for incision and drainage within 90 days of surgery. Superficial infections were identified by International Classification of Diseases, Ninth Revision infection codes without any record of incision and drainage. Patients were compared based on age, sex, body mass index, tobacco use, presence of diabetes, and Charlson Comorbidity Index.A total of 526,537 patients underwent 595,083 arthroscopic knee procedures. Deep postoperative infections occurred at a rate of 0.22%. Superficial infections occurred at a rate of 0.29%. Tobacco use and morbid obesity were the largest risk factors for deep and superficial infections, respectively (P.001; relative risk of 1.90 and 2.19, respectively). There were also higher infection rates among patients undergoing relatively high-complexity arthroscopies, men, obese patients, diabetic patients, and younger patients (in order of decreasing relative risk). Increased Charlson Comorbidity Index was associated with superficial and total infections (P.001).Post-arthroscopic knee infections were more frequent among morbidly obese patients, tobacco users, patients undergoing relatively complex procedures, men, obese patients, diabetic patients, relatively young patients, and patients with increased comorbidity burdens in this study population. This knowledge may allow more informed preoperative counseling, aid surgeons in patient selection, and facilitate infection prevention by targeting individuals with higher inherent risk.Level IV, cross-sectional study.

OBJECTIVES To determine whether hospital and surgeon volume are associated with outcomes after operative fixation of tibial shaft fractures. METHODS Adults (≥18 year old) who underwent operative fixation of diaphyseal tibial fractures were identified in the New York Statewide Planning and Research Cooperative System data set from 2001 to 2015. Reoperation, nonunion, and other adverse event rates were compared across surgeon and hospital volume using multivariable Cox proportional hazards regression, adjusting for clinical and demographic factors. Low-volume providers (lowest 20%) were compared with high-volume providers (highest 20%). Low volume constituted

This study evaluates whether very high-volume hip arthroplasty providers have lower complication rates than other relatively high-volume providers.Hemiarthroplasty patients ≥60 years old were identified in the New York Statewide Planning and Research Cooperative System 2001-2015 dataset. Low-volume hospitals (50 hip arthroplasty cases/y) and surgeons (10 cases/y) were excluded. The upper and lower quintiles were compared for the remaining "high-volume" hospitals (50-70 vs245) and surgeons (10-15 vs ≥60) using multivariable Cox proportional hazards regression. Multiple sensitivity analyses were performed treating volume as a continuous variable.In total, 48,809 patients were included. Very high-volume hospitals demonstrated slightly less pneumonia (6% vs 7%, hazard ratio [HR] 0.77, 95% confidence interval [CI] 0.68-0.88, P.0001). Very high-volume surgeons experienced slightly higher rates of inpatient morality (3% vs 2%, HR 1.30, 95% CI 1.06-1.60, P = .01), revision surgery (3% vs 3%, HR 1.24, 95% CI 1.02-1.52, P = .03), and implant failure (1% vs1%, HR 1.80, 95% CI 1.10-2.96, P = .02). Sensitivity analyses did not significantly alter these findings but suggested that inpatient mortality may decline as surgeon volume approaches 30 cases/y before gradually increasing at higher volumes.A clinically meaningful volume-outcome relationship was not identified among very high-volume hemiarthroplasty surgeons or hospitals. Although prior evidence indicates that outcomes can be improved by avoiding very low-volume providers, these results suggest that complications would not be further reduced by directing all hemiarthroplasty patients to very high-volume surgeons or facilities. Future research investigating whether inpatient mortality changes with surgeon volume (particularly around 30 cases/y) in a different dataset would be valuable.Prognostic Level III.

Retrospective. To define normal values and distributions for sagittal, coronal, and shoulder balance among healthy adolescents, both for traditional radiographs and biplanar radiography. Our understanding of spine balance, especially in the sagittal plane, has expanded rapidly in recent years. Additionally, there has been growing use of simultaneous biplanar radiography which requires slightly different patient positioning. However, the normal ranges of several commonly used parameters have not yet been defined, either in traditional or biplanar radiography. Radiographs were retrospectively reviewed of 273 patients aged 10–18 years seen in spine clinics at two high-volume centers and not diagnosed with any spine pathology. One center utilized traditional radiography and the other biplanar radiography. Coronal, sagittal, and shoulder balance were measured for each patient. Intra-observer reliability and normal values with distributions were reported for each parameter. Intra-observer reliability was excellent (intra-class correlation coefficients ≥ 0.98). Each parameter was normally distributed at each institution based on Kolmogorov–Smirnov testing. Sagittal balance was more negative at the institution using traditional radiographs (− 3.4 ± 4.2 vs. 0.3 ± 2.2, p

Case We report the case of a 5-year-old girl who sustained a traumatic hip dislocation and a spontaneous reduction that was complicated by nonconcentric reduction and a large bucket-handle labral detachment. This injury was managed, via an anterior approach, with capsulotomy and reduction of the large interposed labral tear with an attached osteochondral fragment from the posterior aspect of the acetabulum. No additional surgical treatment was employed for the labral tear. Conclusion The patient ultimately demonstrated radiographic healing and an asymptomatic, clinically stable hip. This case illustrates the spontaneous healing of a large posterior labral detachment in a young pediatric patient with a good outcome at 2.5 years after injury.

OBJECTIVES To determine whether very low surgeon and hospital hip arthroplasty volumes are associated with unfavorable outcomes after hemiarthroplasty for femoral neck fractures. METHODS Patients ≥60 years of age and who underwent hemiarthroplasty for femoral neck fracture were identified in the New York Statewide Planning and Research Cooperative System data from 2001 to 2015. Incidence of inpatient mortality and postoperative complications were compared across both surgeon and hospital volume using multivariable Cox proportional hazards regression, adjusting for clinical and demographic factors. RESULTS Fifty eight thousand eight hundred fourteen patients were included. Low surgeon volume (1 case/year) was associated with increased complications [hazard ratio (HR) 1.35, 95% CI, 1.26-1.44, P < 0.0001), including dislocations (HR 1.31 95% CI, 1.04-1.65, P = 0.02) and several medical complications (P = 0.003) compared with surgeons performing at least 2 hip arthroplasties/year. Low hospital volume (

Background: Diabetics with ankle fractures experience more complications than the general population, but it is unclear whether complications differ between type 1 and 2 diabetics and between insulin- and non–insulin-dependent diabetics. This study aims to determine if there is a difference in postoperative complication rates between these groups. Methods: An administrative health care database from a large commercial insurer was queried to identify operatively treated ankle fractures in patients with type 1 (T1D), type 2 (T2D), type 2 insulin-dependent (T2ID), and type 2 non–insulin-dependent (T2NID) diabetes. Postoperative complications were identified to include postoperative stiffness, posttraumatic arthritis, amputation, implant removal, and infection. Subgroup analysis was performed to control for comorbidities. Results: A total of 20 703 closed and 2873 open operatively treated ankle fractures were identified. Patients with T1D experienced higher rates of amputation, postoperative infection, and total complications than patients with T2D (P < .05). Patients with T2ID experienced higher rates of amputation, infection, and total complications than those with T2NID (P < .0001). Subgroup analysis controlling for comorbidities showed a higher total complication rate for T1D compared with T2D in closed ankle fractures (P < .02) and for T2ID compared with T2NID in both open and closed ankle fractures (P < .0001). Conclusions: Patients with T1D and T2ID have higher complication rates than patients with T2D and T2NID, respectively. Foot and ankle surgeons should be cautioned not to classify diabetics as one cohort and should use these findings to stratify risk among this patient population.Levels of Evidence: Level III: Diagnostic

OBJECTIVE This study compares the cost and cost-effectiveness of treatments options for Sanders II/III displaced intra-articular calcaneus fractures (DIACFs) in laborers. METHODS Literature on Sanders type II and III fractures was reviewed to determine complication rates and utility values for each treatment option. Costs were calculated using Medicare reimbursement and implant prices from our institution. Monte Carlo simulations were used to analyze a decision tree to determine the cost and cost-effectiveness of each treatment from a societal perspective. Sensitivity analysis was performed on all variables. RESULTS Minimally invasive open reduction internal fixation (ORIF) (sinus tarsi approach with 4 screws alone) was least expensive ($23,329), followed by nonoperative care ($24,530) and traditional ORIF using extensile lateral approach ($27,963) (P < 0.001); this result was most sensitive to time out of work. Available cost-effectiveness data were limited, but our analysis suggests that minimally invasive ORIF is a dominant strategy, and traditional ORIF is superior to nonoperative care (incremental cost-effectiveness ratio $57,217/quality-adjusted life year). CONCLUSIONS Our findings suggest that minimally invasive ORIF (sinus tarsi approach) is the least expensive option for managing Sanders II/III displaced intra-articular calcaneus fractures, followed by nonoperative care. Our cost-effectiveness results favor operative management but are highly sensitive to utility values and are weakened by scarce utility data. We therefore cannot currently recommend a treatment course based on value, and our primary conclusion must be that more extensive effectiveness research (ie, health-related quality of life data, not just functional outcomes) is desperately needed to elucidate the value of treatment options in this field. LEVEL OF EVIDENCE Economic Level III. See Instructions for Authors for a complete description of levels of evidence.

BACKGROUND: Interest in developing national health care has been increasing in many fields of medicine, including orthopaedics. One manifestation of this interest has been the development of global health opportunities during residency training. QUESTIONS/PURPOSES: We assessed global health activities and opportunities in orthopaedic residency in terms of resident involvement, program characteristics, sources of funding and support, partner site relationships and geography, and program director opinions on global health participation and the associated barriers. METHODS: An anonymous 24-question survey was circulated to all US orthopaedic surgery residency program directors (n = 153) by email. Five reminder emails were distributed over the next 7 weeks. A total of 59% (n = 90) program directors responded. RESULTS: Sixty-one percent of responding orthopaedic residencies facilitated clinical experiences in developing countries. Program characteristics varied, but most used clinical rotation or elective time for travel (76%), which most frequently occurred during Postgraduate Year 4 (57%) and was used to provide pediatric (66%) or trauma (60%) care. The majority of programs (59%) provided at least some funding to traveling residents and sent accompanying attendings on all ventures (56%). Travel was most commonly within North America (85%), and 51% of participating programs have established international partner sites although only 11% have hosted surgeons from those partnerships. Sixty-nine percent of residency directors believed global health experiences during residency shape future volunteer efforts, 39% believed such opportunities help attract residents to a training program, and the major perceived challenges were funding (73%), faculty time (53%), and logistical planning (43%). CONCLUSIONS: Global health interest and activity are common among orthopaedic residency programs. There is diversity in the characteristics and geographical locations of such activity, although some consensus does exist among program directors around funding and faculty time as the largest challenges.

The use of bundled payments is growing because of their potential to align providers and hospitals on the goal of cost reduction. However, such gain sharing could incentivize providers to “cherry-pick” more profitable patients. Risk adjustment can prevent this unintended consequence, yet most bundling programs include minimal adjustment techniques. This study was conducted to determine how bundled payments for total knee arthroplasty (TKA) should be adjusted for risk. The authors collected financial data for all Medicare patients (age≥65 years) undergoing primary unilateral TKA at an academic center over a period of 2 years (n=941). Multivariate regression was performed to assess the effect of patient factors on the costs of acute inpatient care, including unplanned 30-day readmissions. This analysis mirrors a bundling model used in the Medicare Bundled Payments for Care Improvement initiative. Increased age, American Society of Anesthesiologists (ASA) class, and the presence of a Medicare Major Complications/Comorbid Conditions (MCC) modifier (typically representing major complications) were associated with increased costs (regression coefficients, $57 per year; $729 per ASA class beyond I; and $3122 for patients meeting MCC criteria; P =.003, P =.001, and P Orthopedics. 2016; 39(5):e911–e916.]

Bundled payments are gaining popularity in arthroplasty as a tactic for encouraging providers and hospitals to work together to reduce costs. However, this payment model could potentially motivate providers to avoid unprofitable patients, limiting their access to care. Rigorous risk adjustment can prevent this adverse effect, but most current bundling models use limited, if any, risk-adjustment techniques. This study aims to identify and quantify the financial incentives that are likely to develop with total hip arthroplasty (THA) bundled payments that are not accompanied by comprehensive risk stratification.Financial data were collected for all Medicare-eligible patients (age 65+) undergoing primary unilateral THA at an academic center over a 2-year period (n = 553). Bundles were considered to include operative hospitalizations and unplanned readmissions. Multivariate regression was performed to assess the impact of clinical and demographic factors on the variable cost of THA episodes, including unplanned readmissions. (Variable costs reflect the financial incentives that will emerge under bundled payments).Increased costs were associated with advanced age (P.001), elevated body mass index (BMI; P = .005), surgery performed for hip fracture (P.001), higher American Society of Anaesthesiologists (ASA) Physical Classification System grades (P.001), and MCCs (Medicare modifier for major complications; P.001). Regression coefficients were $155/y, $107/BMI point, $2775 for fracture cases, $2137/ASA grade, and $4892 for major complications. No association was found between costs and gender or race.If generalizable, our results suggest that Centers for Medicare and Medicaid Services bundled payments encompassing acute inpatient care should be adjusted upward by the aforementioned amounts (regression coefficients above) for advanced age, increasing BMI, cases performed for fractures, elevated ASA grade, and major complications (as defined by Medicare MCC modifiers). Furthermore, these figures likely underestimate costs in many bundling models which incorporate larger proportions of postdischarge care. Failure to adjust for factors affecting costs may create barriers to care for specific patient populations.

Feedback on the wards is an important component of medical student education. Medical schools have incorporated formalized feedback mechanisms such as clinical encounter cards and standardized patient encounters into clinical curricula. However, the system could be further improved as medical students frequently feel uncomfortable requesting feedback, and are often dissatisfied with the quality of the feedback they receive.This article explores the shortcomings of the existing medical student feedback system and examines the relevant literature in an effort to shed light on areas in which the system can be enhanced. The discussion focuses on resident-provided feedback but is broadly applicable to delivering feedback in general.A review of the organizational psychology and business administration literature on fostering effective feedback was performed. These insights were then applied to the setting of medical education.Providing effective feedback requires training and forethought. Feedback itself should be specific and actionable.Utilizing these strategies will help medical students and educators get the most out of existing feedback systems.

Background Differences in profitability and contribution margin (CM) between various patient populations may make certain patients particularly attractive (or unattractive) to providers. This study seeks to identify patient characteristics associated with increased profit and CM among Medicare patients undergoing total hip arthroplasty (THA). Methods The expected Medicare reimbursement for consecutive patients of Medicare-eligible age (65+ years) undergoing primary unilateral elective THA (n = 498) was calculated in accordance with Center for Medicare and Medicaid Services policy. Costs were derived from the hospital's cost accounting system. Profit and CM were calculated for each patient as reimbursement less total and variable costs, respectively. Patients were compared based on clinical and demographic factors by univariate and multivariate analyses. Results Medicare patients undergoing THA generated negative average profits but substantial positive CMs. Lower profit and CM were associated with higher American Society of Anesthesiologists Physical Status Classification ( P P = .03), older age ( P P P = .03). No association was found with gender, body mass index, or race. Conclusion If our results are generalizable, Medicare patients requiring THA are currently financially attractive, but institutions have a long-term incentive to shift resources to more profitable patients and service lines, which may eventually restrict access to care for this population. THA providers have a financial incentive to favor Medicare patients with younger age, lower American Society of Anesthesiologists Physical Status Classification, and those who can be expected to require relatively short admissions. The Center for Medicare and Medicaid Services must strive to accurately match reimbursement rates to provider costs to avoid inequitable payments to providers and financial incentives discouraging treatment of high-risk patients or other patient subpopulations.

BACKGROUND: In 2009, the Center for Medicare & Medicaid Services (CMS) began penalizing hospitals with high rates of 30-day readmissions after hospitalizations for certain conditions. This policy will expand to include TKA in 2015. QUESTIONS/PURPOSES: What are the median profits and contribution margins of: (1) Medicare-reimbursed TKA, (2) 30-day TKA readmission, and (3) entire episode of care for readmitted TKA patients within 30 days compared to nonreadmitted patients? (4) Under new CMS guidelines, what financial penalty will the authors' institution face if its arthroplasty readmission rate exceeds the national average? METHODS: A retrospective review of 3218 primary TKAs performed during 2 years at a large urban academic hospital network was conducted using administrative and financial data. RESULTS: The median profit and contribution margins, respectively, were as follows: TKA episode, USD 5209 and USD 11,726; 30-day readmission, USD 608 and USD 3814; TKA visit with readmission, USD 2855 and USD 13,901; TKA visit without readmission, USD 5300 and USD 11,652. Readmission penalties could reach USD 6.21 million per year for the authors' institution. DISCUSSION: If our results are generalizable, unplanned TKA readmissions lead to diminished total profit. Although associated with a positive contribution margin, this is likely to be a short-term phenomenon as the new CMS policy will result in readmissions coming at a steep cost to referral centers.

Management of geriatric hip fractures in a protocol-driven center can improve outcomes and reduce costs. Nonetheless, this approach has not spread as broadly as the effectiveness data would imply. One possible explanation is that operating such a center is not perceived as financially worthwhile. To assess the economic viability of dedicated hip fracture centers, the authors built a financial model to estimate profit as a function of costs, reimbursement, and patient volume in 3 settings: an average US hip fracture program, a highly efficient center, and an academic hospital without a specific hip fracture program. Results were tested with sensitivity analysis. A local market analysis was conducted to assess the feasibility of supporting profitable hip fracture centers. The results demonstrate that hip fracture treatment only becomes profitable when the annual caseload exceeds approximately 72, assuming costs characteristic of a typical US hip fracture program. The threshold of profitability is 49 cases per year for high-efficiency hip fracture centers and 151 for the urban academic hospital under review. The largest determinant of profit is reimbursement, followed by costs and volume. In the authors’ home market, 168 hospitals offer hip fracture care, yet 85% fall below the 72-case threshold. Hip fracture centers can be highly profitable through low costs and, especially, high revenues. However, most hospitals likely lose money by offering hip fracture care due to inadequate volume. Thus, both large and small facilities would benefit financially from the consolidation of hip fracture care at dedicated hip fracture centers. Typical US cities have adequate volume to support several such centers.

Many hospitals in the United States are seeking to obtain and maintain trauma credentialing. Assessment of trauma center success has traditionally focused on mortality without directed measure of surgical subspecialization. However, survival alone may not be a sufficient marker of success with modern health care. The purpose of this study was to determine the number of trauma patients nationally who would benefit from subspecialized care by an orthopedic traumatologist.A list of musculoskeletal DRG International Classification of Diseases-9th Rev. codes representing injuries warranting care by subspecialized orthopedic traumatologists was generated by survey to each of two cohorts: one consisting of 10 subspecialized orthopedic traumatologists and one consisting of 10 nontraumatologists. The 2006 National Inpatient Sample data set was used to estimate the national volume of patients sustaining an orthopedic injury and the number requiring subspecialty orthopedic trauma care, as defined by the DRG International Classification of Diseases-9th Rev. lists generated by our survey.Survey response rate was 100%. In 2006, 2,068,349 patients sustained a traumatic injury; 46.7% of these had an orthopedic injury. Our cohort of subspecialized orthopedic traumatologists identified 25.7% of all trauma patients as requiring an orthopedic traumatologist. Our cohort of general orthopedists identified 13.5% of all trauma patients as requiring an orthopedic traumatologist. Rates of polytrauma, injury severity, and treatment at trauma centers were similar between the two groups.Between 13.5% and 25.7% of all injured patients should, if resources permit, receive subspecialty orthopedic trauma care. The magnitude of this figure highlights the importance, from a public health perspective, of policy interventions aimed at better coordinating the field of orthopedic traumatology. Detailed outcome measures beyond mortality and triage guidelines suggesting which patients should receive subspecialty orthopedic trauma care should be developed. In addition, resources, including fellowship training, should be allocated in a methodical manner that matches supply to the national demand for this type of care.Economic/decision analysis, level IV.

Background. Renewed interest in total ankle arthroplasty (TAA) has developed globally as a result of recent literature supporting new-generation implants as a viable alternative to arthrodesis. The literature also demonstrates a learning curve among surgeons adopting TAA. The purpose of this study is to better define this learning curve for surgeons using third-generation implants. Methods. Charts and radiographs were reviewed for the initial 26 TAA procedures performed by the senior author. Three third-generation implants were used: SBi (Small Bone Innovations) STAR, Salto Talaris, and Wright Medical INBONE. We report perioperative and early postoperative complications. Results. Two perioperative fractures occurred in the first 9 cases, and the incidence subsequently dropped to 0 ( P = .0431). Two cases of component malalignment occurred in the first 3 patients receiving the STAR implant, and the incidence then dropped to 0 ( P = .0034). Five wound complications (4 minor and 1 major) occurred, all in the final 14 patients. No cases of nerve injury, tendon laceration, or deep vein thrombosis occurred. Two patients returned to the operating room as a result of complications, and the total perioperative and early postoperative complication rate was 27%. Conclusion. The observed rate of perioperative and early postoperative complications in this case series was low relative to other similar-sized studies, suggesting that third-generation implants can reduce adverse events. Our results demonstrate that some common complications could be avoided altogether (nerve/tendon injuries), some decreased quickly with experience (intraoperative fractures and component malpositioning), and some persisted unchanged throughout this study (wound complications). These findings should influence surgical training, surgeon willingness to adopt this procedure, and patient counseling. Levels of Evidence: Therapeutic, Level IV, Retrospective Case Series.

A positive correlation between outcomes and the volume of patients seen by a provider has been supported by numerous studies. Volume-outcome relationships (VORs) have been well documented in the setting of both neurosurgery and trauma care and have shaped regionalization policies to optimize patient outcomes. Several authors have also investigated the correlation between patient volume and cost of care, known as the volume-cost relationship (VCR), with mixed results. The purpose of the present study was to investigate VORs and VCRs in the treatment of common intracranial injuries by testing the hypotheses that outcomes suffer at small-volume centers and costs rise at large-volume centers.The authors performed a cross-sectional cohort study of patients with neurological trauma using the 2006 Nationwide Inpatient Sample, the largest nationally representative all-payer data set. Patients were identified using ICD-9 codes for subdural, subarachnoid, and extradural hemorrhage following injury. Transfers were excluded from the study. In the primary analysis the association between a facility's neurotrauma patient volume and patient survival was tested. Secondary analyses focused on the relationships between patient volume and discharge status as well as between patient volume and cost. Analyses were performed using logistic regression.In-hospital mortality in the overall cohort was 9.9%. In-hospital mortality was 14.9% in the group with the smallest volume of patients, that is, fewer than 6 cases annually. At facilities treating 6-11, 12-23, 24-59, and 60+ patients annually, mortality was 8.0%, 8.3%, 9.5%, and 10.0%, respectively. For these groups there was a significantly reduced risk of in-hospital mortality as compared with the group with fewer than 6 annual patients; the adjusted ORs (and corresponding 95% CIs) were 0.45 (0.29-0.68), 0.56 (0.38-0.81), 0.63 (0.44-0.90), and 0.59 (0.41-0.87), respectively. For these same groups (once again using6 cases/year as the reference), there were no statistically significant differences in either estimated actual cost or duration of hospital stay.A VOR exists in the treatment of neurotrauma, and a meaningful threshold for significantly improved mortality is 6 cases per year. Emergency and interfacility transport policies based on this threshold might improve national outcomes. Cost of care does not differ significantly with patient volume.

Saline-coupled bipolar sealing has shown mixed results in primary arthroplasty. However, this technology has not been studied in infected revision total hip arthroplasty (THA), where morbidity is higher and conventional methods of blood management, such as cell salvage, often cannot be used. This case-matched study of 76 consecutive revision THA for infection included an experimental bipolar sealing group and a control group of conventional electrocautery. Groups were matched for gender, body mass index, American Society of Anesthesiologists classification, and surgery type. Total blood loss, intraoperative blood loss, and perioperative hemoglobin drop were significantly less in the experimental group. In addition, operative time was significantly shorter in the experimental group, which translated into gross savings approximately equal to the cost of the device. The decreases in total blood loss and perioperative hemoglobin decline, along with financial savings, may support the use of bipolar sealing in infected revision THA.

Background The efficacy of saline-coupled bipolar sealing devices in joint arthroplasty is uncertain, and the utility in simultaneous bilateral total knee arthroplasty (TKA) has not been reported. Methods This study compares the use of bipolar sealing and conventional electrocautery in 71 consecutive patients. The experimental and control groups were matched for age, sex, body mass index, American Society of Anesthesiologists (ASA) classification, and preoperative hemoglobin. Variables of interest included blood loss, transfusion requirements, and operative characteristics. Results In comparison to patients treated with conventional electrocautery, those treated with the bipolar sealer were 35% less likely to require transfusion. The median number of transfusions per case was also significantly lower in the experimental group. Hemoglobin change, total blood loss, and length of stay were not significantly different between the groups. The experimental group had longer operative times. Conclusions Bipolar sealing shows promise as a blood loss reduction tool in simultaneous bilateral TKA. The marginal savings attributed to reduced transfusion rates with use of the bipolar sealer did not exceed the additional per-case expense of using the device. The decision to use the device with the goal of less blood loss must come with the additional expense associated with its use.