Association of Unmet Social Needs With Level of Capability in People With Persistent Knee Pain.

BACKGROUND: Musculoskeletal providers are increasingly recognizing the importance of social factors and their association with health outcomes as they aim to develop more comprehensive models of care delivery. Such factors may account for some of the unexplained variation between pathophysiology and level of pain intensity and incapability experienced by people with common conditions, such as persistent nontraumatic knee pain secondary to osteoarthritis (OA). Although the association of one's social position (for example, income, employment, or education) with levels of pain and capability are often assessed in OA research, the relationship between aspects of social context (or unmet social needs) and such symptomatic and functional outcomes in persistent knee pain are less clear. QUESTIONS/PURPOSES: (1) Are unmet social needs associated with the level of capability in patients experiencing persistently painful nontraumatic knee conditions, accounting for sociodemographic factors? (2) Do unmet health-related social needs correlate with self-reported quality of life? METHODS: We performed a prospective, cross-sectional study between January 2021 and August 2021 at a university academic medical center providing comprehensive care for patients with persistent lower extremity joint pain secondary to nontraumatic conditions such as age-related knee OA. A final 125 patients were included (mean age 62 ± 10 years, 65% [81 of 125] women, 47% [59 of 125] identifying as White race, 36% [45 of 125] as Hispanic or Latino, and 48% [60 of 125] with safety-net insurance or Medicaid). We measured patient-reported outcomes of knee capability (Knee injury and Osteoarthritis Outcome Score for Joint Replacement), quality of life (Patient-Reported Outcome Measure Information System [PROMIS] Global Physical Health and PROMIS Global Mental Health), and unmet social needs (Accountable Health Communities Health-Related Social Needs Survey, accounting for insufficiencies related to housing, food, transportation, utilities, and interpersonal violence), as well as demographic factors. RESULTS: After controlling for demographic factors such as insurance status, education attained, and household income, we found that reduced knee-specific capability was moderately associated with experiencing unmet social needs (including food insecurity, housing instability, transportation needs, utility needs, or interpersonal safety) (standardized beta regression coefficient [ß] = -4.8 [95% confidence interval -7.9 to -1.7]; p = 0.002 and substantially associated with unemployment (ß = -13 [95% CI -23 to -3.8]; p = 0.006); better knee-specific capability was substantially associated with having Medicare insurance (ß = 12 [95% CI 0.78 to 23]; p = 0.04). After accounting for factors such as insurance status, education attained, and household income, we found that older age was associated with better general mental health (ß = 0.20 [95% CI 0.0031 to 0.39]; p = 0.047) and with better physical health (ß = 0.004 [95% CI 0.0001 to 0.008]; p = 0.04), but effect sizes were small to negligible, respectively. CONCLUSION: There is an association of unmet social needs with level of capability and unemployment in patients with persistent nontraumatic knee pain. This finding signals a need for comprehensive care delivery for patients with persistent knee pain that screens for and responds to potentially modifiable social risk factors, including those based on one's social circumstances and context, to achieve better outcomes. LEVEL OF EVIDENCE: Level II, prognostic study.

Price Transparency and Consumer Perceptions of Generic and Brand-name Implants in Orthopaedic Surgery.

Background: Some have suggested the use of generic surgical implants to curb rising costs of orthopaedic care. However, there is evidence that patients are reluctant to use generic pharmaceuticals as compared to their brand name equivalents for fear of inferior quality. Public perception of the use of generic implants remains unknown. Methods: We conducted a cross-sectional survey using Amazon MTurk to identify factors associated with a consumer preference for generic orthopaedic screws and total hip. Results: While much of the public (52%) sees the value of generic implants, fewer (26%) would prefer them in their own care. Most respondents (75%) trust their surgeon's choice, yet the vast majority (83%) want to be informed about the cost of their implant, even if it makes no difference in what they pay. The agreement that older implants are safer than newer implants (OR 1.9 for screws; 2.5 for hip arthroplasty), and that generics are a better value than brand name implants (OR 3.0 for screws; 4.3 for hip arthroplasty) were independently associated with a preference for generics. Conclusion: The observation that many people view generic implants as being a good value, yet fewer would prefer to use them in their own care indicates that concerns over quality may initially limit utilization of generic implants. More evidence is needed to reassure most consumers of the safety and effectiveness of generic implants. Additionally, our findings demonstrate a desire for more implant price transparency when undergoing orthopaedic surgery.

Skilled Nursing Facility Placement Process After Total Hip and Total Knee Arthroplasty: Revised Rating System and Opportunities for Intervention.

BACKGROUND: With the advent of bundled payment models, identifying high-performing skilled nursing facilities (SNFs) has become increasingly important. The goal of this study is to develop a rating system to rank SNFs within our health system and to use this system to improve the SNF discharge process at our institution. METHODS: All SNF-discharged primary total joint arthroplasty cases in 2017 at a multi-hospital academic health system were queried. Discharge patterns were assessed using heat map analysis. Regression analyses in conjunction with structured discussions with subject matter experts were used to identify measures of SNF efficiency and care quality. A revised rating system was developed and used to identify high-performing facilities within our health system. Opportunities to re-direct patients to higher performing facilities were identified. RESULTS: A revised rating system for SNFs was constructed based on risk-adjusted SNF length of stay, 30-day re-admission rate, and 30-day emergency department visit rate. As 82% of patients were discharged to SNFs in close proximity to their home, high-performing SNFs (according to the revised rating system) were identified by geographic region. Mapping of the discharge process revealed multiple opportunities where patients could be re-directed to a higher performing SNF in their area. Using conservative estimates (25% of discharges re-directed), this is expected to achieve a cost saving of $2,600,000 over a 5-year period, mainly through reductions in SNF length of stay. CONCLUSION: This study describes the development of a revised rating system for SNFs which, when implemented, is expected to achieve substantial cost savings over a 5-year period.

Preoperative Patient-Reported Outcomes and Clinical Characteristics as Predictors of 90-Day Cost/Utilization and Complications.

BACKGROUND: With the advent of mandatory bundle payments for total joint arthroplasty (TJA), assessing patients' risk for increased 90-day complications and resource utilization is crucial. This study assesses the degree to which preoperative patient-reported outcomes predict 90-day complications, episode costs, and utilization in TJA patients. METHODS: All TJA cases in 2017 at 2 high-volume hospitals were queried. Preoperative HOOS/KOOS JR (Hip Injury and Osteoarthritis Outcome Score/Knee Injury and Osteoarthritis Outcome Score) and Veterans RAND 12-item health survey (VR-12) were administered to patients preoperatively via e-collection platform. For patients enrolled in the Medicare bundle, cost data were extracted from claims. Bivariate and multivariate regression analyses were performed. RESULTS: In total, 2108 patients underwent TJA in 2017; 1182 (56%) were missing patient-reported outcome data and were excluded. The final study population included 926 patients, 199 (21%) of which had available cost data. Patients with high bundle costs tended to be older, suffer from vascular disease and anemia, and have higher Charlson scores (P < .05 for all). These patients also had lower baseline VR-12 Physical Component Summary Score (PCS; 24 vs 30, P ≤ .001) and higher rates of extended length of stay, skilled nursing facility discharge, 90-day complications, and 90-day readmission (P ≤ .04 for all). In multivariate analysis, higher baseline VR-12 PCS was protective against extended length of stay, skilled nursing facility discharge, >75th percentile bundle cost, and 90-day bundle cost exceeding target bundle price (P < .01 for all). Baseline VR-12 Mental Component Summary Score and HOOS/KOOS JR were not predictive of complications or bundle cost. CONCLUSION: Low baseline VR-12 PCS is predictive of high 90-day bundle costs. Baseline HOOS/KOOS JR scores were not predictive of utilization or cost. Neither VR-12 nor HOOS/KOOS JR was predictive of 90-day readmission or complications.

Are Medicare's Nursing Home Compare Ratings Accurate Predictors of 90-Day Complications, Readmission, and Bundle Cost for Patients Undergoing Primary Total Joint Arthroplasty?

BACKGROUND: Nursing Home Compare (NHC) ratings, created and maintained by Medicare, are used by both hospitals and consumers to aid in the skilled nursing facility (SNF) selection process. To date, no studies have linked NHC ratings to actual episode-based outcomes. The purpose of this study was to evaluate whether NHC ratings are valid predictors of 90-day complications, readmission, and bundle costs for patients discharged to an SNF after primary total joint arthroplasty (TJA). METHODS: All SNF-discharged primary TJA cases in 2017 at a multihospital academic health system were queried. Demographic, psychosocial, and clinical variables were manually extracted from the health record. Medicare NHC ratings were then collected for each SNF. For patients in the Medicare bundle, postacute and total bundle cost was extracted from claims. RESULTS: Four hundred eighty-eight patients were discharged to a total of 105 unique SNFs. In multivariate analysis, overall NHC rating was not predictive of 90-day readmission/major complications, >75th percentile postacute cost, or 90-day bundle cost exceeding the target price. SNF health inspection and quality measure ratings were also not predictive of 90-day readmission/major complications or bundle performance. A higher SNF staffing rating was independently associated with a decreased odds for >75th percentile 90-day postacute spend (odds ratio, 0.58; P = .01) and a 90-day bundle cost exceeding the target price (odds ratio = 0.69; P = .02) but was similarly not predictive of 90-day readmission/complications. CONCLUSION: Results of our study suggest that Medicare's NHC tool is not a useful predictor of 90-day costs, complications, or readmissions for SNFs within our health system.

Impact of an integrated practice unit on the value of musculoskeletal care for uninsured and underinsured patients.

BACKGROUND: Limited access to specialty care for uninsured and underinsured patients may be exacerbated by traditional fee-for-service approaches to care that incentivize volume and intensity of services over value of care. The purpose of this study was to determine the impact of a value-based integrated practice unit (IPU) on access to musculoskeletal care and surgical outcomes in a safety-net population. METHODS: A new IPU was implemented on 6/1/2016 at an established safety-net clinic providing musculoskeletal care in central Texas to supplement existing musculoskeletal care provided through a fee-for-service model. This retrospective cohort study compared access and outcomes under the IPU to the parallel fee-for-service clinic through 3/31/2017, as well as the historical fee-for-service clinic from 8/1/2015 through 5/31/2016. Primary outcomes for access included number of referrals addressed; for surgical patients, length of stay, discharge destination, and 30-day readmission rates were assessed. RESULTS: The baseline waitlist of 1401 referrals on 6/1/2016 was eliminated by 3/31/2017. Among patients undergoing hip or knee replacement, length of stay was 1.4 days compared to 2.6 days for patients referred to the parallel fee-for-service clinic (p < 0.001), and 92% were discharged home versus 89% (p = 0.46). The 30-day readmission rate for the IPU was 2.7%, which did not differ significantly from the HFFS (8.5%, p = 0.23) and PFFS (3.7%, p = 0.64) clinics. CONCLUSIONS: An IPU increased access and improved short-term surgical outcomes in a population of uninsured and underinsured patients seeking musculoskeletal care. Additional studies of longer duration are needed to assess the sustainability of a value-based approach. IMPLICATIONS: A value-based approach to musculoskeletal care may improve access and outcomes in safety-net patients. LEVEL OF EVIDENCE: III, retrospective cohort study.

Patient-Identified Barriers and Facilitators to Pre-Visit Patient-Reported Outcomes Measures Completion in Patients With Hip and Knee Pain.

BACKGROUND: Although patient-reported outcomes measures (PROMs) provide valuable health information and aid medical decision making for patients with hip and knee arthritis, survey completion rates remain low. The purpose of this study is to elucidate patient preferences regarding location of completion, delivery method, and barriers or facilitators to pre-visit completion. METHODS: Patients with hip and/or knee pain who were asked to complete pre-visit PROMs at 2 urban arthroplasty clinics were recruited. In-person, semi-structured, audio-recorded interviews were conducted, transcribed, and coded for thematic analysis. Codes were developed using a data-driven approach. RESULTS: We analyzed 51 interviews. The mean age was 57 years, 57% were women, and 45% had private or Medicare insurance. Prevalent themes regarding location preferences were convenience and communication preferences. Thirty-four patients stated a preference for completing pre-visit PROMs at home, 19 for in-office completion, and 10 stated no preference. Prevalent themes around delivery methods included technology access and familiarity. Of the 43 patients asked to select their preferred pre-visit PROM delivery method (phone call, email, text message, or postal mail), 31 (72%) preferred email or text messaging. Barriers to completing pre-visit PROMs were technological issues, recognizing the message was healthcare-related, and being too busy or forgetting. Twenty patients identified no barriers. CONCLUSION: Electronic PROM collection is favored by many patients, but alternative methods for patients without access to or familiarity with technology remain important. Clear recognition that the message is from a physician's office and physician communication of the utility of PROMs in clinical decision making may increase pre-visit completion.

Do Aggregate Socioeconomic Status Factors Predict Outcomes for Total Knee Arthroplasty in a Rural Population?

BACKGROUND: We sought to determine whether several preoperative socioeconomic status (SES) variables meaningfully improve predictive models for primary total knee arthroplasty (TKA) length of stay (LOS), facility discharge, and clinically significant Veterans RAND-12 physical component score (PCS) improvement. METHODS: We prospectively collected clinical data on 2198 TKAs at a high-volume rural tertiary academic hospital from April 2011 through March 2016. SES variables included race and/or ethnicity, living alone, education, employment, and household income, along with numerous adjusting variables. We determined individual SES predictors and whether the inclusion of all SES variables contributed to each 10-fold cross-validated area under the model's area under the receiver operating characteristic (AUC). We also used 1000-fold bootstrapping methods to determine whether the SES and non-SES models were statistically different from each other. RESULTS: At least 1 SES predicted each outcome. Ethnic minority patients and those with incomes <$35,000 predicted longer LOS. Ethnic minority patients, the unemployed, and those living alone predicted facility discharge. Unemployed patients were less likely to achieve PCS improvement. Without the 5 SES variables, the AUC values of the LOS, discharge, and PCS models were 0.74 (95% confidence interval [CI] 0.72-0.77, "acceptable"); 0.86 (CI 0.84-0.87, "excellent"); and 0.80 (CI 0.78-0.82, "excellent"), respectively. Including the 5 SES variables, the 10-fold cross-validated and bootstrapped AUC values were 0.76 (CI 0.74-0.79); 0.87 (CI 0.85-0.88); and 0.81 (0.79-0.83), respectively. CONCLUSION: We developed validated predictive models for outcomes after TKA. Although inclusion of multiple SES variables provided statistical predictive value in our models, the amount of improvement may not be clinically meaningful.

Nonelective Primary Total Hip Arthroplasty: The Effect of Discharge Destination on Postdischarge Outcomes.

BACKGROUND: Medicare has enacted a mandatory bundled payment program for primary total joint arthroplasty that includes nonelective primary total hip arthroplasty (THA). Efficient postacute care management has been identified as an opportunity to improve value for patients. We aimed to identify risk factors for and compare rates of complications by discharge destination and then use those factors to risk-stratify non-elective THA patients. METHODS: Patients who underwent nonelective primary THA from 2011 to 2014 were identified in the American College of Surgeons National Surgical Quality Improvement Program database and categorized into those discharged to skilled nursing facility or inpatient rehabilitation facility vs home self-managed/home health (HHH). Bivariate and multivariate analyses of risk factors for postdischarge adverse events were performed using patient characteristics and intraoperative variables. RESULTS: In bivariate analysis, skilled nursing facility or inpatient rehabilitation facility patients compared with HHH patients, had lower rates of postdischarge severe adverse events (SAEs; 49% vs 58%; P < .001) and unplanned 30-day readmissions (71% vs 83%; P < .001). HHH discharged patients with 1 or more of risk factors had a 1.85-6.18 times odds of complications within the first 14 days. CONCLUSION: The most important risk factors for predicting postdischarge SAE and readmission are predischarge SAE, dependent functional status, body mass index >40 kg/m2, smoking, diabetes, chronic steroid use, and American Society of Anesthesiologists class 3/4. Nonelective THA patients without these risk factors may be safely discharged to home after THA. Orthopedic surgeons and their nonelective THA patients must agree on the most appropriate discharge destination through a shared decision-making process that takes into account these significant risk factors and other psychosocial factors.

Health Utility of Early Hemiarthroplasty vs Delayed Total Hip Arthroplasty for Displaced Femoral Neck Fracture in Elderly Patients: A Markov Model.

BACKGROUND: Treatment for femoral neck fracture among patients aged 65 years or older varies, with many surgeons preferring hemiarthroplasty (HA) over total hip arthroplasty (THA). There is evidence that THA may lead to better functional outcomes, although it also carries greater risk of mortality and dislocation rates. METHODS: We created a Markov decision model to examine the expected health utility for older patients with femoral neck fracture treated with early HA (performed within 48 hours) vs delayed THA (performed after 48 hours). Model inputs were derived from the literature. Health utilities were derived from previously fit patients aged more than 60 years. Sensitivity analyses on mortality and dislocation rates were conducted to examine the effect of uncertainty in the model parameters. RESULTS: In the base case, the average cumulative utility over 2 years was 0.895 for HA and 0.994 for THA. In sensitivity analyses, THA was preferred over HA until THA 30-day and 1-year mortality rates were increased to 1.3× the base case rates. THA was preferred over HA until the health utility for HA reached 98% that of THA. THA remained the preferred strategy when increasing the cumulative incidence of dislocation among THA patients from a base case of 4.4% up to 26.1%. CONCLUSION: We found that delayed THA provides greater health utility than early HA for older patients with femoral neck fracture, despite the increased 30-day and 1-year mortality associated with delayed surgery. Future studies should examine the cost-effectiveness of THA for femoral neck fracture.

Home Discharge After Primary Elective Total Joint Arthroplasty: Postdischarge Complication Timing and Risk Factor Analysis.

BACKGROUND: Bundled payment programs for primary total joint arthroplasty (TJA) have identified reducing nonhome discharge as a major area of cost savings. Health care providers must therefore identify, risk stratify, and appropriately care for home-discharged TJA patients. This study aimed to analyze risk factors and timing of postdischarge complications among home-discharged primary total hip arthroplasty (THA) and total knee arthroplasty (TKA) patients and risk stratify them to identify those who would benefit from higher level care. METHODS: Patients discharged home after elective primary THA/TKA from 2011 to 2014 were identified in the National Surgical Quality Improvement Program database. Bivariate and multivariate analyses were performed using perioperative variables. RESULTS: A total of 50,376 and 71,293 home-discharged THA and TKA patients were included for analysis, of which, 1575 THA (3.1%) and 2490 TKA (3.5%) patients suffered postdischarge severe complications or unplanned readmissions. These patients were older, smokers, obese, and functionally dependent (P < .001 for all). In multivariate analysis, severe adverse event predischarge, age, male gender, functional status, and 10 other variables were all associated with ≥1.22 odds of postdischarge severe adverse event or readmission (P < .05). THA and TKA patients with 2, 3, or ≥4 risk factors had 1.43-5.06 times odds of complications within 14 days post discharge and 1.41-3.68 times odds of complications beyond 14 days compared to those with 0 risk factors (P < .001 for all). CONCLUSION: Risk factors can be used to predict which home-discharged TJA patients are at greatest risk of postdischarge complications. Given that this is a growing population, we recommend the development of formal risk-stratification protocols for home-discharged TJA patients.

The Use of Hyaluronic Acid and Corticosteroid Injections Among Medicare Patients With Knee Osteoarthritis.

INTRODUCTION: Hyaluronic acid (HA) and corticosteroid (CS) injections are frequently used in the management of osteoarthritis (OA) of the knee, despite a lack of strong evidence supporting their efficacy in the literature. The purpose of this study is to evaluate trends in HA and CS usage in Medicare patients over the past 15 years. METHODS: The Medicare 5% national sample database was used to identify 581,022 patients (representing an estimated 11.6 million) with a diagnosis of knee OA between 1999 and 2013. RESULTS: The percentage of newly diagnosed knee OA patients who received any injection trended from 39% in 1999 to 47% in 2006 and then declined to 37.5% in 2013. However, the mean number of injections per newly diagnosed OA patient nearly doubled from 0.27 to 0.45 for CS and from 0.18 to 0.36 for HA. Among those having both HA and CS injections, 69% had CS as first-line treatment, whereas 31% had HA first. CONCLUSION: The percentage of newly diagnosed knee OA patients receiving injections peaked in 2007 and then decreased steadily through 2013, as did the proportion of patients receiving HA injections as first-line therapy. However, the number of injections per patient has increased significantly over the past 15 years in both groups.

Developing a pathway for high-value, patient-centered total joint arthroplasty.

BACKGROUND: Total joint arthroplasty (TJA) is one of the most widely performed elective procedures; however, there are wide variations in cost and quality among facilities where the procedure is performed. QUESTIONS/PURPOSES: The purposes of this study were to (1) develop a generalizable clinical care pathway for primary TJA using inputs from clinical, academic, and patient stakeholders; and (2) identify system- and patient-level processes to provide safe, effective, efficient, and patient-centered care for patients undergoing TJA. METHODS: We used a combination of quantitative and qualitative methods to design a care pathway that spans 14 months beginning with the presurgical office visit and concluding 12 months after discharge. We derived care suggestions from interviews with 16 hospitals selected based on readmission rates, cost, and quality (n = 10) and author opinion (n = 6). A 32-member multistakeholder panel refined the pathway during a 1-day workshop. Participants were selected based on leadership in orthopaedic (n = 4) and anesthesia (n = 1) specialty societies; involvement in organizations specializing in safety and high reliability care (n = 3), lean production/consumption of care (n = 3), and patient experience of care (n = 3); membership in an interdisciplinary care team of a hospital selected for interviewing (n = 8); recent receipt of a TJA (n = 1); and participation in the pathway development team (n = 9). RESULTS: The care pathway includes 40 suggested processes to improve care, 37 techniques to reduce waste, and 55 techniques to improve communication. Central themes include standardization and process improvement, interdisciplinary communication and collaboration, and patient/family engagement and education. Selected recommendations include standardizing care protocols and staff roles; aligning information flow with patient and process flow; identifying a role accountable for care delivery and communication; managing patient expectations; and stratifying patients into the most appropriate care level. CONCLUSIONS: We developed a multidisciplinary clinical care pathway for patients undergoing TJA based on principles of high-value care. The pathway is ready for clinical testing and context-specific adaptation. LEVEL OF EVIDENCE: Level V, therapeutic study. See the Instructions for Authors for a complete description of levels of evidence.

Factors influencing patients' willingness to pay for new technologies in hip and knee implants.

Rising implant prices and evolving technologies are important factors contributing to the increased cost of arthroplasty. Assessing how patients value arthroplasty, new technologies, and their perceived outcomes is critical in planning cost-effective care, as well as evaluating new-technologies. One hundred one patients undergoing arthroplasty took part in the survey. We captured demographics, spending practices, knowledge of implants, patient willingness to pay for implants, and preferences related to implant attributes. When patients were asked if they would be satisfied with "standard of care" prosthesis, 80% replied "no". When asked if they would pay for a higher than "standard of care" prosthesis, 86% replied "yes". The study demonstrated that patients, regardless of their socio-economic status, are not satisfied with standard of care implants when newer technologies are available, and they may be willing to share in the cost of their prosthesis. Patients also prefer the option to choose what they perceive to be a higher quality or innovative implant even if the "out of pocket" cost is higher.

A collaborative of leading health systems finds wide variations in total knee replacement delivery and takes steps to improve value.

Members of a consortium of leading US health care systems, known as the High Value Healthcare Collaborative, used administrative data to examine differences in their delivery of primary total knee replacement. The goal was to identify opportunities to improve health care value by increasing the quality and reducing the cost of that procedure. The study showed substantial variations across the participating health care organizations in surgery times, hospital lengths-of-stay, discharge dispositions, and in-hospital complication rates. The study also revealed that higher surgeon caseloads were associated with shorter lengths-of-stay and operating time, as well as fewer in-hospital complications. These findings led the consortium to test more coordinated management for medically complex patients, more use of dedicated teams, and a process to improve the management of patients' expectations. These innovations are now being tried by the consortium's members to evaluate whether they increase health care value.