Relative value units correlate with pediatric surgeons' operating time: when perceived myth becomes reality

Are Gender-Affirming Plastic Surgeons Adequately Compensated? An Analysis of Relative Value Units

BACKGROUND

Gender-affirming surgery (GAS) has a complicated history within US health care. As GAS procedures and reimbursement availability continue to uptrend, the present study aims to investigate whether compensation is equitable between GAS procedures and general plastic surgery procedures.

METHODS

The National Surgical Quality Improvement Program database was queried for all surgeries performed by plastic surgeons from 2016 to 2020. Cases were assigned to the GAS or non-GAS cohort using ICD-10 codes. Duplicate Current Procedural Terminology (CPT) codes were removed for analysis. Operative time, total wRVUs, wRVUs per hour (wRVU/h), reoperation/readmission rate, and number of concurrent procedures were compared between the cohorts.

RESULTS

A total of 132,319 non-GAS and 3,583 GAS were identified. After duplicate CPT removal, 299 cases (21 unique CPTs) remained in the GAS cohort and 20,022 (37 unique CPTs) in the non-GAS cohort. Operative time was higher in the GAS cohort (262.9 vs 120.7 min, P < 0.001), as were total wRVUs (59.4 vs 21.6, P < 0.001). Reoperation/readmission rate (7.0% vs 6.0%) and wRVU/h (15.8 vs 15.1) were not significantly different (all P > 0.05). There was a positive correlation between total operative time and total wRVUs (P < 0.001) and a negative correlation between total operative time and wRVU/h (P < 0.001).

CONCLUSIONS

Proportional wRVUs are allocated to gender affirming plastic procedures. However, the RVU scale does not allocate proportional wRVUs to longer operative times for both GAS and general plastic surgeries. Compensation for gender affirming plastic surgeries is higher than that of general plastic surgeries; however, there is no difference in wRVUs per hour on comparison.

National Undervaluation of Cleft Surgical Services: Evidence from a Comparative Analysis of 50,450 Cases

BACKGROUND

Relative value units (RVUs) are broadly used for billing and physician compensation; however, the accuracy of RVU assignments has not been scientifically evaluated for craniofacial surgery. The authors hypothesize that unbalanced RVU allocation creates inappropriate disparities in value among procedures performed by cleft and craniofacial surgeons.

METHODS

The National Surgical Quality Improvement Program Pediatric database was queried to identify all cleft and craniofacial surgery cases performed by plastic surgeons from 2012 to 2019 based on CPT code. Microsurgical cases and CPT codes with a case count of fewer than 10 were excluded. Efficiency was defined as total RVUs divided by total operative time (ie, RVUs/hour). Mean efficiency per CPT code was ranked and compared by quartile using t tests.

RESULTS

The sample consisted of 69 CPT codes with 50,450 cases. In the top quartile, most CPT codes were craniofacial procedures including frontofacial procedures (23.53%) and craniectomies for craniosynostosis or bony lesions (35.29%) (mean, 15.65 ± 4.22 RVUs/hour). The lowest quartile was composed mainly of CPT codes for cleft procedures including operations for velopharyngeal insufficiency (17.65%), cleft palate repair (23.53%), and cleft septoplasty (5.88%) (mean, 7.39 ± 0.98 RVUs/hour; P < 0.001). It was 2.5 times more efficient for a cleft and craniofacial surgeon to perform a local skin flap (15.18 RVUs/hour) than a secondary palatal lengthening for cleft palate (6.09 RVUs/hour).

CONCLUSIONS

The current RVU allocation to cleft and craniofacial procedures creates arbitrary disparities in physician efficiency, with cleft procedures disproportionately negatively affected. RVU assignments should be reevaluated to avoid disincentivizing cleft surgical care.

Correlation between Relative Value Units and Operative Time for Flap-Based Reconstruction Procedures

BACKGROUND

Procedures performed by plastic surgeons tend to generate lower work relative value units (RVUs) compared to other surgical specialties despite their major contributions to hospital revenue. The authors aimed to compare work RVUs allocated to all free flap and pedicled flap reconstruction procedures based on their associated median operative times and discuss implications of these compensation disparities.

METHODS

A retrospective analysis of deidentified patient data from the American College of Surgeons National Surgical Quality Improvement Program was performed, and relevant CPT codes for flap-based reconstruction were identified from 2011 to 2018. RVU data were assessed using the 2020 National Physician Fee Schedule Relative Value File. The work RVU per unit time was calculated using the median operative time for each procedure.

RESULTS

A total of 3991 procedures were included in analysis. With increased operative time and surgical complexity, work RVU per minute trended downward. Free-fascial flaps with microvascular anastomosis generated the highest work RVUs per minute among all free flaps (0.114 work RVU/minute). Free-muscle/myocutaneous flap reconstruction generated the least work RVUs per minute (0.0877 work RVU/minute) among all flap reconstruction procedures.

CONCLUSIONS

Longer operative procedures for flap-based reconstruction were designated with higher work RVU. Surgeons were reimbursed less per operative unit time for these surgical procedures, however. Specifically, free flaps resulted in reduced compensation in work RVUs per minute compared to pedicled flaps, except in breast reconstruction. More challenging operations have surprisingly resulted in lower compensation, demonstrating the inequalities in reimbursement within and between surgical specialties. Plastic surgeons should be aware of these discrepancies to appropriately advocate for themselves.

Comparison of Relative Value Units and 30-Day Outcomes Between Primary and Revision Pediatric Spinal Deformity Surgery

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

The aim of this study was to compare the relative value units (RVUs) and 30-day outcomes between primary and revision pediatric spinal deformity (PSD) surgery.

SUMMARY OF BACKGROUND DATA

PSD surgery is frequently complicated by the need for reoperation. However, there is limited literature on physician reimbursement rates and short-term outcomes following primary versus revision spinal deformity surgery in the pediatric population.

MATERIALS AND METHODS

This study utilizes data obtained from the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) Pediatric database. Patients between 10 and 18 years of age who underwent posterior spinal deformity surgery between 2012 and 2018 were included. Univariate and multivariate regression were used to assess the independent impact of revision surgery on RVUs and postoperative outcomes, including 30-day readmission, reoperation, morbidity, and complications.

RESULTS

The study cohort included a total of 15,055 patients, with 358 patients who underwent revision surgery. Patients in the revision group were more likely to be younger and male sex. Revision surgery more commonly required osteotomy (13.7% vs. 8.3%, P =0.002).Univariate analysis revealed higher total RVUs (71.09 vs. 60.51, P <0.001), RVUs per minute (0.27 vs. 0.23, P <0.001), readmission rate (6.7% vs. 4.0%, P =0.012), and reoperation rate (7.5% vs. 3.3%, P <0.001) for the revision surgery group. Morbidity rates were found to be statistically similar. In addition, deep surgical site infection, pulmonary embolism, and urinary tract infection were more common in the revision group. After controlling for baseline differences in multivariate regression, the differences in total RVUs, RVUs per minute, reoperation rate, and rate of pulmonary embolism between primary and revision surgery remained statistically significant.

CONCLUSIONS

Revision PSD surgery was found to be assigned appropriately higher mean total RVUs and RVUs per minute corresponding to the higher operative complexity compared with primary surgery. Revision surgery was also associated with poorer 30-day outcomes, including higher frequencies of reoperation and pulmonary embolism.

LEVEL OF EVIDENCE

Level III.

A Retrospective Review of Reimbursement in Revision Total Hip Arthroplasty: A Disparity Between Case Complexity and RVU Compensation

BACKGROUND

Revision total hip arthroplasties (THA) are time-consuming, expensive, and technically challenging. Today's Current Procedural Terminology (CPT) codes and relative value units (RVU) may in fact disincentivize surgeons to perform revision THAs. Our study reviewed labor and time investments for each component-specific revision THA and analyzed the gap between procedural value billed and final reimbursement.

METHODS

A retrospective review of 165 primary and revision THAs were validated using operative notes and billing records. We stratified revision THAs by standard CPT coding (with modifiers) as single acetabular component, single femoral component, femoral head plus polyethylene liner (head/liner) exchange, all-components, and spacer placement for infection. Operative time, RVUs, total charges, deductions, and final reimbursement data was collected. Mann-Whitney U tests studied final reimbursement per minute vs per RVU in revision and primary THAs.

RESULTS

Our cohort consisted of 27 primary THAs, 26 acetabular component revisions, 32 head/liner exchanges, 26 femoral component revisions, 27 all-component revisions, and 27 spacer placements. Compared to primary THAs, every revision subgroup except for head/liner exchanges were found to reimburse less per minute and all revision subgroups reimbursed less per RVU (P < .05).

CONCLUSION

Physicians face less reimbursement per minute and per RVU for revision THAs. With cuts in reimbursement set forth by Centers for Medicare and Medicaid Services (CMS) and insurers, revisions may be financially unfavorable. This ultimately will lead to an impending access to care problem in the future. Our study supports the need to re-examine the RVU allocation amongst revision THAs and evaluate changes to the Current Procedural Terminology (CPT) coding system.

A Retrospective Review of Relative Value Units in Revision Total Knee Arthroplasty: A Dichotomy Between Surgical Complexity and Reimbursement

BACKGROUND

Revision total knee arthroplasties (TKA) are costly, time-intensive, and technically demanding procedures. There are concerns regarding the valuation of Current Procedural Terminology (CPT) codes and the assigned relative value units (RVU) as a potential disincentive to perform revision TKAs. This study evaluated the labor and time investment for each component-specific revision and assessed the disparities between procedural value billed and reimbursement.

METHODS

A retrospective review of 154 primary and revision TKA cases were thoroughly vetted using operative notes and internal billing data. Revision TKAs were stratified by single femoral component, single tibial component, polyethylene liner only, all-component, and spacer placement for prosthetic infection. Operative time, RVUs billed, total charges, deductions, and reimbursements were recorded. Mann-Whitney U tests compared final reimbursement per minute and per RVU between revision and primary TKAs.

RESULTS

There were 28 primary TKAs, 11 femoral component revisions, 25 tibial component revisions, 25 liner exchanges, 37 all-component revisions, and 28 spacer placements. Revisions involving the tibial component, all-components, and placement of spacers were reimbursed less dollars per minute than primary TKAs (P < .05). Controlling for RVUs, liner exchanges and all-component revisions had fewer dollars per RVU than primary TKAs (P < .05).

CONCLUSION

As revision complexity increases, physicians face less reimbursement per minute and per RVU. With reductions set by CMS and private insurers, revisions may be financially unfavorable and lead to restrictions and access to care problems. Our data supports the need for reevaluating RVU allocation amongst revision procedures with potential updates to the CPT coding system.

Are Orthopedic Hand Surgeons Undercompensated for Time Spent in the Operating Room? A Study of Relative Value Units

BACKGROUND

This study aims to investigate whether compensation is equitable among the most commonly performed orthopedic hand surgeries and when compared with general orthopedic procedures.

METHODS

The National Surgical Quality Improvement Program database was queried for all orthopedic procedures, from 2016 to 2018, performed more than 150 times using Current Procedural Terminology (CPT) codes. Physician work relative value unit (wRVU) data were obtained from the 2020 US Centers for Medicare and Medicaid Services fee schedule. Linear regressions were used to determine whether there was an association among wRVU, operative time, and wRVU per hour (wRVU/h). Reimbursement for hand surgery CPT codes was compared with that of nonhand orthopedic CPT codes. The CPT codes were stratified into quartile cohorts based on mean operative time, major complication rate, mortality rate, American Society of Anesthesiologists class, reoperation rate, and readmission rate. Student t tests were used to compare wRVU/h between cohorts.

RESULTS

Forty-two hand CPT codes were identified from 214 orthopedic CPT codes, accounting for 32 333 hand procedures. The median wRVU/h was significantly lower for procedures in the longest operative time quartile compared with the shortest operative time quartile (P < .001). Compared with hand procedures, nonhand procedures were found to have significantly higher mean operative time (P < .001), mean complication rate (P < .001), mean wRVU (P = .001), and mean wRVU/h (P = .007).

CONCLUSIONS

The 2020 Physician wRVU scale does not allocate proportional wRVUs to orthopedic hand procedures with longer mean operative times. There is a decrease in mean reimbursement rate for hand procedures with longer mean operative time. When compared with general orthopedic procedures, hand procedures have a lower mean wRVU/h and complication rate.

Association of Surrogate Objective Measures With Work Relative Value Units

Background: The determination of accurate measures of evaluating surgeon work for reimbursement is poorly characterized. This study defines the correlation of surgical work relative value units (work RVUs) with several surrogate objective measures for otolaryngologic work. The defined surrogate objective measures evaluated in this study are length of hospital stay (LOS), operative time, 30-day mortality, 30-day unplanned readmission, 30-day reoperation, and 30-day morbidity.

Methods: We collected data on otolaryngologic cases from 2016 to 2018 from the American College of Surgeons National Surgical Quality Improvement Program. Pearson correlation coefficient was used to associate work RVUs with objective measures of surgeon work. Linear regressions were used to identify predictors of work RVUs from the surrogate objective measures. Studentized residuals were used to identify outlying procedures.

Results: Work RVUs correlated strongly with operative time (R=0.6775), 30-day readmission (R=0.6100), and LOS (R=0.6083); moderately with 30-day reoperation (R=0.5257) and 30-day morbidity (R=0.4842); and very weakly with 30-day mortality (R=0.1383). The best predictors for work RVUs based on multivariable linear regression analysis were morbidity, reoperation, and operative time. Analysis revealed that the projected work RVU is 12.23 units higher than the current value for excision of bone, mandible (Current Procedural Terminology [CPT] code 21025) and 19.48 units lower than the current value for resection/excision of lesion infratemporal fossa space apex extradural (CPT code 61605).

Conclusion: Using objective surrogate measures for time and intensity of physician work in head and neck cases may improve work RVU assignment accuracy compared to the current system of physician survey. Future investigation with additional objective parameters may be beneficial to make work RVU assignments less subjective.

Development of a local model for measuring the work of surgeons

Objective: The Relative Value Unit (RVU) is the main method of calculating surgeons’ reimbursements and a tool for measuring the work of surgeons. Existing evidence shows that the work Relative Value Unit (wRVU) does not accurately represent surgeon’s work. Therefore, the current study attempted to develop a local model to measure surgeons’ work.

Material and Methods: This study was conducted in two main phases of determining the metrics and model development using quantitative and qualitative approaches from December 2019 to April 2021. Literature review, focused group discussions, and interviews were used to collect data. Con- tent analysis and Exploratory Data Analysis techniques were applied to analyze data.

Results: The findings demonstrated that patient’s conditions (age, severity of disease at referring time, and comorbidities), disease specifications (time, complexity, physical effort, and risk), and provider characteristic (surgeon’s willingness, imposed stress, and surgeon’s skill) were important by 17, 51, and 32%, respectively, in determining surgeons’ work.

Conclusion: Determining a fixed value for each procedure does not accurately estimate the amount of required surgeon’s work for any procedure. Many factors, such as the patient’s condition, surgeon’s characteristics, and disease specification affect surgeons’ work in the operation room. Proper measurement of the surgeon’s work is an important step towards establishing equity in payment in the health system.

Quantifying the Surgeon's Increased Burden of Postoperative Work for Modern Arthroplasty Surgery

BACKGROUND

Arthroplasty payment traditionally includes 118 minutes for postoperative rounds and 69 minutes for postoperative office visits, amounting to 187 minutes and 7 work relative value units. Rapid recovery, ambulatory procedures, and bundled payments have altered the burden of care, with multiple studies showing an increase in physician work. Policy changes during the COVID-19 pandemic allow for precise documentation of patient touchpoints. We analyzed the duration of video, telephone, and text messaging to quantify modern arthroplasty work.

METHODS

Consecutive primary hip, knee, and partial knee arthroplasties, performed 30 days before March 15, 2020 (date of practice closure), were included from a single institution, yielding 47 cases. We retrospectively quantified the duration of video telehealth documentation, telephone logs, and text messages over 90 days to calculate the postoperative work required in modern arthroplasty using descriptive statistics.

RESULTS

An average of 9.4 touchpoints (2-14) by the surgeons occurred during the global period for this cohort, totaling 219 minutes (51-247 minutes). This included an average of 21 minutes of day-0 calls to family, 117 minutes for video visits, 52 minutes for phone calls, and 29 minutes for text messaging and wound photos.

CONCLUSION

We found an undervaluation of 32 minutes of work. AAHKS leadership advocates for the fair payment of modern arthroplasty work. Cell phones have opened channels of contact that did not exist before, including phone accessibility, text messaging, and video calls. These data help defend against current payer efforts to cut work relative value units for arthroplasty.

LEVEL OF EVIDENCE

II.

Evaluation of the Relationship Between Aspects of Medical Complexity and Work Relative Value Units (wRVUs) for Foot and Ankle Surgical Procedures

Work relative value units (wRVUs) have been assigned to current procedural terminology codes in an effort to help establish physician compensation. However, the ability of these to accurately and efficiently capture the time, technical, and perioperative managerial aspects required of various procedures has recently been called into question for several surgical subspecialties. Therefore, the objective of this investigation was to evaluate various measures of medical complexity against wRVUs for foot and ankle surgical procedures. The 2018 American College of Surgeons National Surgical Quality Improvement Program database was utilized to identify and extract data related to the perioperative medical complexity of 16 foot and ankle surgical current procedural terminology codes. We observed a "weak" positive relationship between wRVUs and operation time as defined by a correlation coefficient of 0.234 (p < .001). Other variables associated with medical complexity in the perioperative period were found to significantly vary between wRVUs categories, but these differences were neither consistently nor directly associated with assigned relative values. We conclude that wRVUs might not always represent an efficient means for determining compensation for foot and ankle surgical procedures.

Relative value units do not adequately account for operative time in pediatric urology

BACKGROUND

Relative value units (RVUs) are the measure of value used in United States Medicare and Medicaid reimbursement. The Relative Update Committee (RUC) determines physician work RVU (wRVUs) based on operative time, technical skill and effort, mental effort and judgment, and stress. The primary aim of this study was to assess whether operative time is adequately accounted for in the wRVU system in pediatric urology.

METHODS

The American College of Surgeons National Surgical Quality Improvement Program Pediatric Participant User File (ACS-NSQIPP-PUF) was reviewed from 2012 to 2017. Most common single pediatric urology current procedural terminology (CPT) codes were included. The primary variable was wRVU per hour of operative time (wRVU/h). Linear regression analysis was used to assess the relative influence that operative time had on wRVU/h.

RESULTS

25,432 cases were included in the final study population from 45 unique CPT codes. The median operative time was 79 min, and the median RVU/h was 12.2. Procedures with operative time less than 79 min had higher wRVU/h compared with procedures longer than 79 min (14.5 vs 10.5, p < 0.001). Procedures with higher than average incidence of any complications had a lower wRVU/h (9.0 vs. 14.6 p < 0.001). Linear regression analysis revealed that each additional hour of operative time was expected to decrease wRVU/h by 4.2 (-0.70 per 10 min, 95% CI: -0.71 to -0.69, p < 0.001; R² = 0.39).

CONCLUSION

This analysis of contemporary large pediatric population national-level data suggests that the wRVU system significantly favors shorter and less complex procedures in Pediatric Urology. Pediatric urologists performing longer and more complex procedures are not adequately compensated for the increase in complexity.

EVIDENCE LEVEL III

Retrospective comparative study.

Reoperative Cervical Endocrine Surgery: Appropriate Valuation for the Time and Effort?

BACKGROUND

Controversies currently exist regarding the best way to appropriately quantify complexity and to benchmark reimbursement for surgeons. This study aims to analyze surgeon reimbursement in primary and redo-thyroidectomy and parathyroidectomy using operative time as a surrogate for complexity.

METHODS

A retrospective analysis using the National Surgical Quality Improvement Program database was performed to identify patients who underwent primary and redo-thyroidectomy and parathyroidectomy. Calculations of median operative time work relative value units per minute and dollars per minute were compared between primary and redo procedures.

RESULTS

Thyroidectomy cases represented 53.5% (22,521 cases), and the other 46.5% (19,596 cases) were parathyroidectomy cases. The median dollars per minute in primary thyroidectomy was $4.97 and for redo-thyroidectomy was $8.12 (P < 0.0001). By the same token, dollars per minute were higher in the redo cases with $15.40 when compared with primary parathyroidectomy cases with $13.14 dollars per minute (P < 0.0001).

CONCLUSIONS

By Current Procedural Terminology codes, surgeons appear to be appropriately reimbursed for redo-thyroid and parathyroid procedures indexed to first time parathyroidectomy based on the compensated operative time of these procedures calculated using a nationally representative sample.

The impact of removing global periods on pediatric surgeon reimbursement

PURPOSE

CMS has proposed removing postoperative care from the global periods for surgical procedures and instead requiring surgeons to bill for postoperative visits using evaluation & management (E&M) codes. This policy may alter reimbursement to pediatric surgeons.

METHODS

To assess the impact of this policy, NSQIP-pediatric data were used to calculate median LOS for high-volume procedures with 10 or 90 day global periods. We then merged these data with CMS physician work time and RVU files. A CMS LOS variable was created by counting the number of hospital-based E&M codes built into the global period based on the fact that if global periods are removed, surgeons may only bill one E&M code per postoperative day. We then compared the CMS and NSQIP LOS values.

RESULTS

The dataset included 201 CPT codes with NSQIP LOS estimates derived from a median of 137 operations. Twenty-nine procedures (14.4%) had higher, 24 (16.9%) had the same, and 138 (68.7%) had lower NSQIP median LOS than current CMS values. On average, NSQIP values were 40.0% (95% confidence interval [95CI] -50.0, -29.9%) lower than CMS values. Based on a daily average work RVU per postoperative E&M code of 1.09 (95% CI 1.05, 1.12), and $35.78 per RVU (2017 rate), surgeons in this sample would experience a cumulative annual reduction in reimbursement of approximately $3.4 M following the policy change.

CONCLUSIONS

Most pediatric surgical procedures have RVU valuations that include more hospital-based E&M codes than the current median number of postoperative days. Holding all else equal, the removal of global periods would therefore reduce reimbursement for pediatric surgeons. The downstream effects of this policy change, such as the impact on the quality of clinical care, are uncertain and warrant further investigation.

TYPE OF STUDY

Clinical research paper.

LEVEL OF EVIDENCE

Level II.

Preoperative Blood Transfusions and Morbidity in Neonates Undergoing Surgery

BACKGROUND

Blood transfusions in the neonatal patient population are common, but there are no established guidelines regarding transfusion thresholds. Little is known about postoperative outcomes in neonates who receive preoperative blood transfusions (PBTs).

METHODS

Using the American College of Surgeons National Surgical Quality Improvement Program-Pediatric Participant Use Data Files from 2012 to 2015, we identified all neonates who underwent surgery. Mortality and composite morbidity (defined as any postoperative complication) in neonates who received a PBT within 48 hours of surgery were compared with that in neonates who did not receive a transfusion.

RESULTS

A total of 12 184 neonates were identified, of whom 1209 (9.9%) received a PBT. Neonates who received a PBT had higher rates of preoperative comorbidities and worse postoperative outcomes when compared with those who did not receive a transfusion (composite morbidity: 46.2% vs 16.2%; P < .01). On multivariable regression analysis, PBTs were independently associated with increased 30-day morbidity (odds ratio [OR] = 1.90; 95% confidence interval [CI]: 1.63-2.22; P < .01) and mortality (OR = 1.98; 95% CI: 1.55-2.55; P < .01). In a propensity score-matched analysis, PBTs continued to be associated with increased 30-day morbidity (OR = 1.53; 95% CI: 1.29-1.81; P < .01) and mortality (OR = 1.58; 95% CI: 1.24-2.01; P = .01).

CONCLUSIONS

In a propensity score-matched model, PBTs are independently associated with increased morbidity and mortality in neonates who undergo surgery. Prospective data are needed to better understand the potential effects of a red blood cell transfusion in this patient population.

Association of Neurosurgical Work Relative Value Units with Objective Markers of Operative Complexity

OBJECTIVE

Relative value units (RVUs) form the backbone of health care service reimbursement calculation in the United States. However, it remains unclear how well RVUs align with objective measures of procedural complexity within neurosurgery.

METHODS

The 2018 American College of Surgeons National Surgical Quality Improvement Program database was queried for neurosurgical procedures with >50 patients, using Current Procedural Terminology (CPT) codes. Length of stay (LOS), operative time, mortality, and readmission and reoperation rates were collected for each code and a univariate correlation analysis was performed, with significant predictors entered into a multivariate logistic regression model, which generated predicted work RVUs, which were compared with actual RVUs to identify undervalued and overvalued procedures.

RESULTS

Among 64 CPT codes, LOS, operative time, mortality, readmission, and reoperation were significant independent predictors of work RVUs and together explained 76% of RVU variance in a multivariate model (R² = 0.76). Using a difference of >1.5 standard deviations from the mean, procedures associated with greater than predicted RVU included surgery for intracranial carotid circulation aneurysms (CPTs 61697 and 61700; residual RVU = 12.94 and 15.07, respectively), and infratemporal preauricular approaches to middle cranial fossa (CPT 61590; residual RVU = 15.39). Conversely, laminectomy/foraminotomy for decompression of additional spinal cord, cauda equina, and/or nerve root segments (CPT 63048; residual RVU = -21.30), transtemporal craniotomy for cerebellopontine angle tumor resection (CPT 61526; residual RVU = -9.95), and brachial plexus neuroplasty (CPT 64713; residual RVU = -11.29) were associated with lower than predicted RVU.

CONCLUSIONS

Work RVUs for neurosurgical procedures are largely predictive of objective measures of surgical complexity, with few notable exceptions.

Work relative value units do not account for complexity and operative time in hypospadias surgery

INTRODUCTION

Relative value units (RVU) are the measure of value used in United States Medicare and Medicaid reimbursement. The Relative Update Committee (RUC) determine physician work RVU (wRVU) based on operative time, technical skill and effort, mental effort and judgement, and stress. In theory, wRVU should account for the complexity and operative time involved in a procedure.

OBJECTIVE

The primary aim of this study is to assess if operative time and complexity of hypospadias surgery is adequately accounted for by the current wRVU assignments.

STUDY DESIGN

The American College of Surgeons National Surgical Quality Improvement Program Participant User File (ACS-NSQIP PUF) database was utilized from 2012 to 2017. Single stage hypospadias current procedural terminology (CPT) codes (including acceptable secondary CPT codes) were extracted. Using total wRVU and total operative time, the primary variable of wRVU per hour was calculated (wRVU/hr). Multivariable linear regression analysis was used to assess the relative influence that wRVU and operative time had on the wRVU/hr variable.

RESULTS

9810 cases were included in the final study population divided into four categories: simple distal (eg. MAGPI, V-Flap), single stage distal, single stage mid, single stage proximal. On analysis of variance, there was statistically significant different wRVU/hr for the four different types of hypospadias repairs with simple distal having the highest mean wRVU/hr of 19.5 and the lowest being proximal hypospadias repairs at 13.2. Simple distal, distal and midshaft hypospadias had statistically significantly higher wRVU/hr compared to proximal hypospadias (16.2, 95% CI: 15.8-16.5 vs. 13.2, 95% CI 10.9-15.5; p<0.001). Multivariable linear regression revealed that each additional hour of operative time was expected to decrease wRVU/hr by 10.5 (-10.5, 95% CI: -11.0 to -10.1, p < 0.001); total work wRVU had a statistically significant independent association with wRVU/hr (0.6, 95%CI: 0.5-0.7, p <0.001).

DISCUSSION

This the first objective assessment of the current wRVU assignments with regards to one stage hypospadias repairs. More complex and longer hypospadias procedures are not adequately compensated by wRVU. Most notably, simple distal procedures are reimbursed at a mean of 19.5 wRVU/hr compared to 13.2 wRVU/hr for one stage proximal repairs.

CONCLUSION

This analysis of national-level data suggests that the current wRVU assignments significantly favor shorter and simpler procedures in hypospadias surgery.

Not all primary total hip arthroplasties are equal-so is there a difference in reimbursement?

Background

Relative value units (RVUs) are a physician reimbursement model based on the effort required, or value, in providing a procedure or service for a patient. Procedures such as conversion total hip arthroplasties (THAs) can be compared to primary THAs, but many studies have revealed increased difficulties in conversion cases. Despite the increased time and effort for conversion THA, it is unknown if this is reflected in the RVU compensation model. Therefore, the purpose of this study was to compare the: (I) mean operative times; (II) mean RVUs; (III) RVU/minute for primary and conversion THAs; and (IV) perform an individualized idealized surgeon annual cost difference analysis.

Methods

A total of 103,702 primary THA patients were identified using CPT code 27130 and 2,986 conversion THA patients were identified using CPT code 27132 using the National Surgical Quality Improvement Program (NSQIP) database. The mean RVUs, operative times (minutes), and RVU/minute were calculated and compared. An annualize cost analysis of dollar amounts per case, day, and the year was also performed.

Results

The mean operative times for the primary and conversion THA cohorts were 94 vs. 146 minutes (P<0.001) and mean RVUs were 21.24 vs. 25.68 (P<0.001). Interestingly, the mean RVU per minute was higher for the primary THA compared to the conversion THA groups (0.26 vs. 0.21, P<0.001). Annualized cost analysis revealed a potential $173,529 difference from performing primary vs. conversion THAs.

Conclusions

Even though conversion THA can be considered to a more complex and demanding procedure, based on RVUs per minute of surgery, orthopaedic surgeons are reimbursed better for primary THA cases. This data could be used by orthopaedic surgeons to administer their practices better to yield the highest return on time.

A comparison of relative value units in revision hip versus revision knee arthroplasty

The purpose of this study was to compare the: 1) RVUs; 2) lengths-of-surgery; 3) RVU per minute between revision hip (THA) and knee (TKA) arthroplasties; and 4) perform an annualized surgeon cost analysis. Using the ACS-NSQIP from 2008 to 2015, 8081 revision TKAs, 7233 THAs were compared. Revision THA had greater mean RVUs (30.27 vs. 27.10 RVUs, p < 0.001), operative times (152 vs. 149 min, p < 0.001), and RVU/minute (0.3 vs. 0.2 RVUs per minute, p < 0.001). Cost analysis yielded and annual $89,922.73 difference. Revision THA, therefore, is reimbursed at a significantly higher "hourly rate," when compared to revision TKA.

What provides a better value for your time? The use of relative value units to compare posterior segmental instrumentation of vertebral segments

BACKGROUND CONTEXT

Relative value units (RVUs) are a compensation model based on the effort required to provide a procedure or service to a patient. Thus, procedures that are more complex and require greater technical skill and aftercare, such as multilevel spine surgery, should provide greater physician compensation. However, there are limited data comparing RVUs with operative time. Therefore, this study aims to compare mean (1) operative times; (2) RVUs; and (3) RVU/min between posterior segmental instrumentation of 3-6, 7-12, and ≥13 vertebral segments, and to perform annual cost difference analysis.

METHODS

A total of 437 patients who underwent instrumentation of 3-6 segments (Cohort 1, current procedural terminology [CPT] code: 22842), 67 patients who had instrumentation of 7-12 segments (Cohort 2, CPT code: 22843), and 16 patients who had instrumentation of ≥13 segments (Cohort 3, CPT code: 22844) were identified from the National Surgical Quality Improvement Program (NSQIP) database. Mean operative times, RVUs, and RVU/min, as well as an annualized cost difference analysis, were calculated and compared using Student t test. This study received no funding from any party or entity.

RESULTS

Cohort 1 had shorter mean operative times than Cohorts 2 and 3 (217 minutes vs. 325 minutes vs. 426 minutes, p<.05). Cohort 1 had a lower mean RVU than Cohorts 2 and 3 (12.6 vs. 13.4 vs. 16.4). Cohort 1 had a greater RVU/min than Cohorts 2 and 3 (0.08 vs. 0.05, p<.05; vs. 0.08 vs. 0.05, p>.05). A $112,432.12 annualized cost difference between Cohorts 1 and 2, a $176,744.76 difference between Cohorts 1 and 3, and a $64,312.55 difference between Cohorts 2 and 3 were calculated.

CONCLUSION

The RVU/min takes into account not just the value provided but also the operative times required for highly complex cases. The RVU/min for fewer vertebral level instrumentation being greater (0.08 vs. 0.05), as well as the $177,000 annualized cost difference, indicates that compensation is not proportional to the added time, effort, and skill for more complex cases.

A Comparison of Relative Value Units in Primary Versus Revision Total Knee Arthroplasty

BACKGROUND

In total knee arthroplasty (TKA), revision cases are often technically more challenging, and require more operative time and aftercare than primary cases. These time and effort differences should therefore be appropriately compensated for when using the relative value unit (RVU) system. Therefore, the purpose of this study is to compare the mean (1) RVUs; (2) operative times; and (3) RVU/min; and (4) perform an individualized idealized surgeon annual cost difference analysis for primary vs revision TKA.

METHODS

Current Procedural Terminology code 27447 identified 165,439 primary TKA patients, while Current Procedural Terminology code 27487 identified 8081 revision TKA patients from the National Surgical Quality Improvement Program database. The mean RVUs, operative times, and RVU/min were calculated. Dollar amount per minute, per case, per day, and year were also calculated. Student's t-test, with a cut-off P-value of <.05, was used in order to identify any statistical differences in mean RVUs, operative times, and RVU/min.

RESULTS

The mean RVUs for primary TKA was 22, while for revision TKA was 27 (P < .001). The mean operative time for primary TKA was 94 minutes, while for revision TKA was 149 minutes (P < .001). The mean RVU/min for primary TKA was 0.26, while for revision TKA was 0.22 (P < .001). The dollar amounts calculated for primary vs revision TKA were per minute ($9.33 vs $7.90), per case ($877.12 vs $1176.43), per day ($4385.60 vs $3529), and projected a $137,008.70 annual cost difference.

CONCLUSION

Orthopedic surgeons are reimbursed at a higher rate per minute for primary cases compared to revision TKA (0.26 vs 0.22, P < .001). The annual difference can amount to nearly $140,000. Orthopedic surgeons can use this information to better understand the dynamics of their time, compensation, and ultimately, their practice. Furthermore, it can be argued that there needs to be a shift to increase the RVU per unit time for revision TKAs.

Morbidity and Mortality Risk Assessment in Gynecologic Oncology Surgery Using the American College of Surgeons National Surgical Quality Improvement Program Database

INTRODUCTION

Gynecologic oncology patients represent a distinct patient population with a variety of surgical risks. The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database provides an opportunity to analyze large cohorts of patients over extended periods with high accuracy. Our goal was to develop a postoperative risk assessment calculator capable of providing a standardized, objective means of preoperatively identifying high-risk patients in the gynecologic oncology population.

METHODS

We queried the ACS NSQIP database for gynecologic oncology patients from 2005 to 2013. Multivariate logistic regression was performed to generate predictive models specific for 30-day postoperative mortality and major morbidity.

RESULTS

There were 12,831 patients with a primary gynecologic malignancy identified: 7847 uterine, 3366 adnexal, 1051 cervical, and 567 perineum cancers. In this cohort, 125 (0.97%) patients died, and 784 (6.11%) major morbidity events were recorded within 30 days of their surgery. For 30-day mortality, the mean calculated predictive probability was 0.128 (SD, 0.219) compared with 0.009 (SD, 0.027) in patients alive 30 days postoperatively (P < 0.0001). The mean predictive probability of major morbidity was 0.097 (SD, 0.095) compared with 0.059 (SD, 0.043) in patients who did not experience major morbidity 30 days postoperatively (P < 0.0001).

CONCLUSIONS

Using NSQIP data, these predictive models will help to determine patients at risk for 30-day mortality and major morbidity. Further clinical validation of these models is required.

Are We Appropriately Compensated by Relative Value Units for Primary vs Revision Total Hip Arthroplasty?

BACKGROUND

Relative value units (RVUs) are used to evaluate the effort required for providing a service to patients in order to determine compensation. Thus, more complicated cases, like revision arthroplasty cases, should yield a greater compensation. However, there are limited data comparing RVUs to the time required to complete the service. Therefore, the purpose of this study is to compare the (1) mean RVUs, (2) mean operative times, and (3) mean RVU/minute between primary and revision total hip arthroplasty (THA) and (4) perform an individualized idealized surgeon annual cost difference analysis.

METHODS

A total of 103,702 patients who underwent primary (current procedural terminology code 27130) and 7273 patients who underwent revision THA (current procedural terminology code 27134) were identified using the National Surgical Quality Improvement Program database. Mean RVUs, operative times (minutes), and RVU/minute were calculated and compared using Student t-test. Dollar amount per minute, per case, per day, and year was calculated to find an individualized idealized surgeon annual cost difference.

RESULTS

The mean RVU was 21.24 ± 0.53 (range, 20.72-21.79) for primary and 30.27 ± 0.03 (range, 30.13-30.28) for revision THA (P < .001). The mean operative time for primary THA was 94 ± 38 minutes (range, 30-480 minutes) and 152 ± 75 minutes (range, 30-475 minutes) for revision THA (P < .001). The mean RVU/minute was 0.260 ± 0.10 (range, 0.04-0.73) for primary and 0.249 ± 0.12 (range, 0.06-1.0) for revision cases (P < .001). The dollar amounts calculated for primary vs revision THA were as follows: per minute ($9.33 vs $8.93), per case ($877.12 vs $1358.32), per day ($6139.84 vs $5433.26), and a projected $113,052.28 annual cost difference for an individual surgeon.

CONCLUSION

Maximizing the RVU/minute provides the greatest "hourly rate." The RVU/minute for primary (0.260) being significantly greater than revision THA (0.249) and an annualized $113,052.28 cost difference reveal that although revision THAs are more complex cases requiring longer operative time, greater technical skill, and aftercare, compensation per time is not greater.

Relative value units poorly correlate with measures of surgical effort and complexity

BACKGROUND

The relationship between procedural relative value units (RVUs) for surgical procedures and other measures of surgeon effort are poorly characterized. We hypothesized that RVUs would poorly correlate with quantifiable metrics of surgeon effort.

METHODS

Using the 2010 American College of Surgeons - National Surgical Quality Improvement Program (NSQIP) database, we selected 11 primary current procedural terminology codes associated with high volume surgical procedures. We then identified all patients with a single reported procedural RVU who underwent nonemergent, inpatient general surgical operations. We used linear regression to correlate length of stay (LOS), operative time, overall morbidity, frequency of serious adverse events (SAEs), and mortality with RVUs. We used multivariable logistic regression using all preoperative NSQIP variables to determine other significant predictors of our outcome measures.

RESULTS

Among 14,481 patients, RVUs poorly correlated with individual LOS (R(2) = 0.05), operative time (R(2) = 0.10), and mortality (R(2) = 0.35). There was a moderate correlation between RVUs and SAEs (R(2) = 0.79) and RVUs and overall morbidity (R(2) = 0.75). However, among low- to mid-level RVU procedures (11-35) there was a poor correlation between SAEs (R(2) = 0.15), overall morbidity (R(2) = 0.05), and RVUs. On multivariable analysis, RVUs were significant predictors of operative time, LOS, and SAEs (odds ratio 1.06, 95% confidence interval: 1.05-1.07), but RVUs were not a significant predictor of mortality (odds ratio 1.02, 95% confidence interval: 0.99-1.05).

CONCLUSIONS

For common, index general surgery procedures, the current RVU assignments poorly correlate with certain metrics of surgeon work, while moderately correlating with others. Given the increasing emphasis on measuring and tracking surgeon productivity, more objective measures of surgeon work and productivity should be developed.

A comparison of urban school- and community-based dental clinics

BACKGROUND

The objective of the study was to quantitatively compare school- and community-based dental clinics in New York City that provide dental services to children in need. It was hypothesized that the school-based clinics would perform better in terms of several measures.

METHODS

We reviewed billing and visit data derived from encounter forms and expense reports from 4 school- and 3 community-based clinics during 12 months in 2004-2005. The health clinics, administered by the Children's Aid Society, provided dental services to children regardless of ability to pay. The assessments were based on 8 performance indicators, including some based on relative value units, and profile of service indicators was used for assessment. Descriptive statistics and results from hypothesis tests are reported.

RESULTS

Based on significant and large differences on the indicators, the school-based health clinics appear to have definite advantages over community-based dental clinics. Results were consistent across many indicators.

CONCLUSIONS

The results support increasing the number of school-based dental clinics in urban areas that serve children in need. Being based in schools, factors such as transportation issues, parent availability, and missed appointments are greatly reduced. This has great public dental health implications for children in underserved areas. Schools provide a natural location to provide preventive and responsive dental care. Similar advantages could be expected in rural areas and other areas of need.

Knowledge and opinions regarding Medicare reimbursement for laparoscopic cholecystectomy

BACKGROUND

Medicare, via its fee schedule, determines amount of payment to physicians for services for its beneficiaries. Because many private insurance companies base their payment schedule on Medicare rates, it is important for physicians to know the rates of commonly performed procedures. In addition, it seems that public perception is that physicians receive substantial payments for procedures. This investigation explores patient, student, resident, and surgeon knowledge and opinion of Medicare reimbursements for laparoscopic cholecystectomy.

METHODS

Patients, students, residents, and surgeons filled out an IRB-exempted survey. The survey included a written description of a laparoscopic cholecystectomy. All participants were asked to give their thoughts of what Medicare currently reimburses for a laparoscopic cholecystectomy ($622) and what they thought Medicare should reimburse for a laparoscopic cholecystectomy for our geographic area.

RESULTS

There were 105 participants (47 patients, 17 medical students, 33 surgical residents, and 8 attending surgeons) in the investigation. The reported mean reimbursements of what each group thought Medicare pays were patients, $9,396; students, $3,077; residents, $800; and surgeons, $711. The reported mean reimbursements of what each group thought Medicare should pay were patients, $8,067; students, $3,971; residents, $1,444; and surgeons, $1,600. The mean reimbursements were statistically different between all groups in both the amount Medicare currently pays and the amount Medicare should pay.

CONCLUSION

Most of our participants overestimated what Medicare currently pays for laparoscopic cholecystectomy. Even the mean amount reported in the attending surgeon group was greater than the actual payment. All groups felt Medicare should pay more than the current rate; however, only patients thought Medicare should pay less than they currently pay (probably because of the incorrect perception of the current fee schedule).

Surgical risk factors, morbidity, and mortality in elderly patients

BACKGROUND

The aging population of the United States results in increasing numbers of surgical operations on elderly patients. This study observed aging related to morbidity, mortality, and their risk factors in patients undergoing major operations.

STUDY DESIGN

We reviewed our institution's American College of Surgeons National Surgical Quality Improvement Program database from February 24, 2002, through June 30, 2005, including standardized preoperative, intraoperative, and 30-day postoperative data points. This required review and analysis of the prospectively collected data. We examined patient demographics, preoperative risk factors, intraoperative risk factors, and 30-day outcomes with a focus on those aged 80 years and older.

RESULTS

A total of 7,696 surgical procedures incurred a 28% morbidity rate and 2.3% mortality rate, although those older than 80 years of age had a morbidity of 51% and mortality of 7%. Hypertension and dyspnea were the most frequent risk factors in those aged 80 years and older. Preoperative transfusion, emergency operation, and weight loss best predicted morbidity for those 80 years of age and older. Operative duration predicted "other" postoperative occurrences and emergent case status predicted respiratory occurrences across all age groups. Preoperative impairment of activities of daily living, emergency operation, and increased American Society of Anesthesiology classification predicted mortality across all age groups. A 30-minute increment of operative duration increased the odds of mortality by 17% in patients older than 80 years. Postoperative morbidity and mortality increased progressively with increasing age. Age was statistically significantly associated with morbidity (wound, p = 0.021; renal, p = 0.001; cardiovascular, p = 0.0004; respiratory, p < 0.0001) and mortality (p = 0.001).

CONCLUSIONS

Although several risk factors for postoperative morbidity and mortality increase with age, increasing age itself remains an important risk factor for postoperative morbidity and mortality.