Cost Implications of Varying the Surgical Technique, Surgical Setting, and Anesthesia Type for Carpal Tunnel Release Surgery

Carbon Footprint of Open Carpal Tunnel Release Surgery Performed in the Procedure Room Versus Operating Room Setting

PURPOSE

Environmental sustainability is an important issue in health care because of large amounts of greenhouse gases attributable to hospitals. The operating room has been highlighted as one of the highest contributors, prompting several initiatives by organizations focused on the care of hand and upper extremity conditions. This study aimed to quantify and compare the carbon footprint of a common hand surgery in two different surgical settings, the procedure room (PR) and operating room. We hypothesized that open carpal tunnel release (oCTR) will generate a greater environmental impact in the operating room than in the PR.

METHODS

This was a retrospective review of oCTRs performed at a tertiary care medical center. Current procedural technology codes isolated a single cohort of patients who underwent bilateral oCTR, one side performed in the PR and the contralateral side in the operating room. Current published emission conversions were used to calculate carbon footprint at our institution based on energy expenditure necessary for the creation and disposal of waste and sterilization of surgical equipment. Surgery time was combined with heating, ventilation and air conditioning/lighting energy consumption to estimate facility emissions.

RESULTS

Fourteen patients had bilateral oCTR surgery performed in both settings. Open CTR performed in the operating room generated 3.7 kg more solid waste than when performed in the PR. In total, emissions from oCTR performed in the operating room generated 32.4 kg CO2, whereas oCTR in the PR emitted 13.0 kg CO2 per surgery.

CONCLUSIONS

Performing a common hand procedure (oCTR) is more environmentally sustainable in the PR than in the operating room, with a 60% reduction in carbon footprint.

CLINICAL RELEVANCE

Greater effort should be made to perform surgery in the PR instead of the operating room in appropriately indicated patients. Surgical sets should be evaluated for the necessity of included equipment and unnecessary waste.

Improved Resource Utilization Using WALANT Hand Surgery in Adolescents

BACKGROUND

Cost, efficiency, patient preference, and safety have driven utilization of wide awake, local anesthesia, no tourniquet (WALANT) in hand surgery. This is not well documented in adolescents. We hypothesize that the use of WALANT with adolescents reduced time spent in the operating room (OR) and in the hospital when compared with patients who underwent surgery with traditional anesthesia (TA).

METHODS

After institutional review board approval, we performed a retrospective review of patients aged 10 to 17 who underwent surgery at a regional hospital system including the level 1 pediatric trauma hospital. Operative notes were assessed for use of WALANT. We excluded those operations not traditionally amenable to WALANT. Using a propensity matched cohort, hospital time, OR time, and perioperative complications were recorded and compared to evaluate efficiency and perioperative safety.

RESULTS

There were 28 cases in the WALANT group and 28 cases in the TA group after excluding cases not amenable to WALANT, and cases were propensity matched. Although the operative time (incision to closure) was similar, for WALANT patients, the in-room to procedure time (15 vs 22 minutes), procedure end to out-room time (5 vs 10 minutes), total room time (52.81 vs 63.68), and length of hospital stay (222 vs 342 minutes) were shorter than patients in the TA group.

CONCLUSION

Our case series demonstrates time-savings both in the OR and in the hospital overall. Avoiding TA when WALANT is feasible may result in significant savings to hospital systems, patients, and payers while also freeing up anesthesia staff and perioperative nurses.

The Influence of Mental Health Diagnoses on Patient Experiences and Outcomes in Patients Undergoing WALANT Hand Surgery

Purpose

The purpose of this study was to gauge whether patients with preexisting mental health conditions have desirable outcomes when undergoing wide-awake local anesthesia with no tourniquet (WALANT) hand surgery.

Methods

A retrospective review of 133 patients who underwent WALANT surgery by 2 senior authors from August 2019 to October 2020 was performed. Patients were administered a 10-question postoperative survey detailing perioperative pain, experience, and satisfaction concerning their procedure. Analysis was performed for patient responses to the questionnaire, demographics, comorbidities, and patient-reported outcomes using the Single Assessment Numeric Evaluation (SANE).

Results

There were 61 patients identified as having a preexisting psychiatric diagnosis compared to 70 patients without who underwent WALANT surgery. Comparing psychiatric diagnosis and nonpsychiatric diagnosis cohorts, there was no significant difference in preoperative anxiety (3.75 vs 3.30), pain during procedure (0.67 vs 0.56), or pain after surgery (4.89 vs 4.26). There was a significantly higher pain score with preoperative injection in the psychiatric diagnosis cohort (4.07 vs 2.93). When asked if they would have a WALANT procedure again, 95.1% of patients in the psychiatric diagnosis cohort and 98.6% of patients in the nonpsychiatric diagnosis group said they would. There was no significant difference in average preoperative SANE scores (59.67 [no psych diagnosis] vs 61.70 [psych diagnosis]) or postoperative SANE scores (82.82 [no psych diagnosis] vs 81.06 [psych diagnosis]) between the two cohorts.

Conclusions

WALANT surgery was nearly as well tolerated in patients with a preexisting mental health diagnosis when compared to those without a preexisting diagnosis.

Clinical Relevance

Surgeons who are currently or potentially performing WALANT surgery should not rule out patients as eligible candidates because of a prior diagnosis of a mental health condition.

The Correlation of Surgical Setting With Perioperative Opioid Prescriptions for Wide-Awake Carpal Tunnel Release

BACKGROUND

Prior studies have compared perioperative opioid prescriptions between carpal tunnel release (CTR) performed wide-awake and with traditional anesthetic techniques, but the association of opioid prescriptions with surgical setting has not been fully explored. The current study assessed the association of opioid prescriptions with surgical setting (office or operating room) for wide-awake CTR.

METHODS

Patients with open CTR were identified in an administrative claims database (PearlDiver). Exclusion criteria included age less than 18 years, preoperative data less than 6 months, postoperative data less than 1 month, bilateral surgery, concomitant hand surgery, and traditional anesthesia (general anesthesia, sedation, or regional block). Patients were stratified by surgical setting (office or operating room) and matched by age, sex, Elixhauser Comorbidity Index, and geographic region. Prior opioid prescriptions, opioid dependence/abuse, substance use disorder, back/neck pain, generalized anxiety, and major depression were identified. Opioid prescriptions within 7 days before and 30 days after surgery were characterized.

RESULTS

Each matched cohort included 5713 patients. Compared with patients with surgery in the operating room, fewer patients with office-based surgery filled opioid prescriptions (45% vs 62%), and those prescriptions had lower morphine milligram equivalents (MMEs, median 130 vs 188). These findings were statistically significant on univariate and multivariate analysis.

CONCLUSIONS

Following office-based CTR, fewer patients filled opioid prescriptions, and filled prescriptions had lower MME. This likely reflects patient and provider attitudes about pain control and opioid utilization. Further patient- and provider-level investigation may provide additional insights that could aid in efforts to reduce perioperative opioid utilization across surgical settings.

Low-Income, Poor Physical Health, Poor Mental Health, and Other Social Risk Factors Are Associated With Decreased Access to Care in Patients With Carpal Tunnel Syndrome

BACKGROUND

Carpal Tunnel Syndrome (CTS) is associated with a significant personal and societal burden. Evaluating access to care can identify barriers, limitations, and disparities in the delivery of healthcare services in this population. The purpose of this study was to evaluate access to overall healthcare and healthcare utilization among patients with CTS.

METHODS

This is a retrospective cohort study conducted with the All of Us database. Patients diagnosed with CTS that completed the access to care survey were included and matched to a control group. The primary outcomes were access to care across 4 domains: (1) delayed care, (2) could not afford care, (3) skipped medications, and (4) over 1 year since seeing provider. Secondary analysis was then performed to identify patient-specific factors associated with reduced access to care.

RESULTS

In total, 7649 patients with CTS were included and control matched to 7649 patients without CTS. In the CTS group, 33.7% (n = 2577) had delayed care, 30.4% (n = 2323) could not afford care, 15.4% (n = 1180) skipped medications, and 1.6% (n = 123) had not seen a provider in more than 1 year. Within the CTS cohort, low-income, worse physical health, and worse mental health were associated with poor access to care.

CONCLUSION

Patients experience notable challenges with delayed care, affordability of care, and medication adherence regardless of having a diagnosis of CTS. Targeted interventions on modifiable risk factors such as low income, poor mental health, and poor physical health are important opportunities to improve access to care in this population.

Evaluation of Costs Associated With Acute Achilles Tendon Repair

Background

Increasing attention is being paid to the costs associated with various orthopaedic surgeries. Here, we studied the factors that influence costs associated with surgically treated acute Achilles tendon tears.

Methods

We retrospectively identified patients with surgically repaired acute Achilles tendon tears, excluding insertional ruptures or chronic tendon issues. Using the Value Driven Outcome (VDO) tool from our institution, we assessed total direct costs as well as facility costs. Briefly, the VDO tool includes an item-level database that can capture detailed cost data-costs are then reported as relative mean data. Cost variables were adjusted to 2022 US dollars, and total direct cost was compared with patient characteristics using gamma regressions to report cost ratios with 95% CIs.

Results

Our cohort consisted of 224 patients with Achilles tendon tears surgically repaired by one of 4 fellowship-trained orthopaedic foot and ankle surgeons. There were no differences in demographics, total direct costs, or facility costs based on surgical positioning (prone n = 156, supine n = 68). Open repairs (n = 215), compared with percutaneous techniques (n = 9) that used commercially available instrumentation, had 37% less total direct costs (P < .001, 95% CI 0.55-0.72). Compared with surgery at a main academic hospital (n = 15), procedures at an ambulatory care center (n = 207) had 19% lower total direct costs (P = .040, 95% CI 0.66-0.99) and 41% lower facility costs (P < .001, 95% CI 0.5-0.7).

Conclusion

Improving cost-effective orthopaedic care remains an increasingly important goal. Patient positioning for Achilles tendon repair does not appear to have meaningful impacts on cost. When clinically appropriate, considering surgery location at an ambulatory center appears to reduce surgical costs.

Level of Evidence

Level III, retrospective comparative study.

Fixation of Distal Radius Fractures Under Wide-Awake Local Anesthesia: A Systematic Review

BACKGROUND

The purpose of this systematic review was to analyze the available literature on fixation of distal radius fractures (DRFs) under wide-awake local anesthesia no-tourniquet (WALANT), and to examine postoperative pain scores and functional outcomes, operative data including operative time and blood loss, and the frequency of adverse events.

METHODS

Embase, MEDLINE, Web of Science, and SCOPUS were searched from inception until May 2022 for relevant studies. Studies were screened in duplicate, and data on pain scores, functional outcomes, and adverse events were recorded. Due to methodological and statistical heterogeneity, the results are presented in a descriptive fashion.

RESULTS

Ten studies were included comprising 456 patients with closed, unilateral DRFs, of whom 226 underwent fixation under WALANT. These patients had a mean age of 52.8 ± 8.3 years, were 48% female, and had a mean follow-up time of 11.6 months (range: 6-24). Operative time for WALANT patients averaged 60.4 ± 6.5 minutes, with mean postoperative pain scores of 1.4 ± 0.6 on a 10-point scale. Studies that compared WALANT to general anesthesia found shorter hospital stays with most WALANT patients being sent home the same day, decreased postoperative pain scores, and decreased costs to the healthcare system. No adverse events were reported for WALANT patients.

CONCLUSIONS

A growing body of literature reports that for closed, unilateral DRF, surgical fixation under WALANT is a safe and effective option. It allows patients to have surgery sooner, with improved pain scores and good functional outcomes, with a very low incidence of adverse events.

Wide Awake Local Anesthetic No Tourniquet in Hand and Wrist Surgery: Current Concepts, Indications, and Considerations

Background

Traditionally, the use of a pneumatic arterial tourniquet was requisite for safe and effective surgery of the hand. The use of arterial tourniquets necessitates the use of regional or general anaesthesia. Wide-awake local anaesthetic no tourniquet (WALANT) has emerged as a novel technique to overcome the limitations of tourniquet use in conjunction with regional/general anaesthesia. This review aimed to examine the safety and effectiveness of WALANT and provide guidance for surgeons with limited WALANT experience.

Methods

A literature review of MEDLINE was performed up to March 2021 to identify all articles related to the use of WALANT in hand surgery. Any article reporting original data related to the use of WALANT was eligible for inclusion.

Results

A total of 101 articles were identified through database searching. Of these, 79 met full inclusion criteria and described the use of WALANT in 19 elective and trauma procedures. Current data suggest that WALANT is safe and effective for use in a range of procedures.

Conclusions

WALANT surgery is increasing in popularity as evidenced by the variety of surgical indications reported in the literature. There is limited comparative data on the cost-effectiveness of WALANT compared to conventional methods. Current data suggest that WALANT is safe, better tolerated by patients and associated with direct and indirect cost savings.

Safety and efficacy of a modified WALANT technique using undiluted adrenaline during open surgical carpal tunnel release: a prospective report of 308 procedures

PURPOSE

The current study aimed to report on the safety and efficacy of utilizing a modified WALANT (mWALANT) technique during open surgical carpal tunnel release (CTR), where we used undiluted epinephrine compared to the originally described WALANT technique.

METHODS

From January 2015 till the end of June 2021, 200 patients (175 (87.5%) were females) who presented with carpal tunnel syndrome, either bilateral (108 (54%) patients) or unilateral (92 (46%)) were included, formulating a total of 308 procedures. Open surgical CTR was performed as a daycare procedure by the same surgeon. The mWALANT injectable mixture was prepared by mixing 8 CC of 2% lidocaine HCl + 1 CC of 0.25 mg/1 ml epinephrine without dilution (2.5 times the concentration used in the original WALANT technique). The injection was performed before draping.

RESULTS

The patients' average age at surgery was 42.88 ± 13.03 years old; they were followed up for an average of 31 ± 17.17 months. The average operative time was 9.5 ± 1.87 min. None (0.0%) of the patients needed top-up of local anesthesia or shift into general anesthesia, and no (0.0%) patients needed postoperative hospital stay. The average VAS during the surgical procedure was 2.5 ± 2.1, mainly reported during infiltration of the local anesthesia; no patients reported discomfort during the surgical procedure itself. 180 (90%) patients reported a full return to their usual preoperative ADL after an average of 4.7 ± 1.2 weeks. No (0.0%) postoperative fingers ischemic or temperature changes. Two (1%) patients experienced an adrenaline rush in the form of tachycardia that needed sedation and close monitoring by the anesthesiologist; they were discharged on the same day. One (0.5%) patient (who had uncontrolled diabetes mellitus) showed a superficial wound infection which resolved after conservative management.

CONCLUSIONS

Using undiluted epinephrine during the mWALANT technique is safe and effective. There is no need to wait until the drugs fully function, and no epinephrine-related complications were encountered apart from occasional adrenaline rush symptoms.

Patient Experiences With Hand Surgery in the Office Versus Ambulatory Surgery Center

Background In hand surgery, physicians are working to improve patient satisfaction by offering several minor procedures in the physician's office via the Wide-Awake Local Anesthesia No Tourniquet (WALANT) method. This study investigates the degree of patient satisfaction, out-of-pocket costs, peri- and postoperative pain, convenience, and comfort experienced with in-office hand procedures compared to ambulatory surgery center (ASC) procedures. Methods A 10-question survey consisting of a 10-point Likert scale of agreement and numerical questions was administered to patients treated with minor hand operations in the office and ASC settings in Florida, USA. The surgical procedures included are bony reconstruction, percutaneous pinning, open reduction internal fixation, closed fracture reduction, mass removal, endoscopic carpal tunnel release, Dupuytren's release/tendon repair, and trigger finger release. Procedures and patient demographics were assessed via chart review. Independent samples t-test was used to determine statistical associations with significance defined as p < 0.05. Results Patients reported a strong level of agreement in response to questions 1-3 and 6-8, indicating a high degree of convenience, comfort, and overall satisfaction with both in-office and ASC procedures. Positive metrics gauged in questions 1-3 and 6-8 averaged 9.64 ± 0.14 in the office setting and 9.62 ± 0.16 in the ASC setting. Questions 4 and 5 averaged 2.74 ± 0.29 in the office setting and 2.84 ± 4.12 in the ASC setting, indicating mild disagreement that the surgery or recovery period was painful. In-office patients reported taking 0.91 ± 2.80 days off work and ASC patients reported taking 12.43 ± 22.51 days off work following surgery (p = 0.0039). Respondents reported an out-of-pocket cost averaging $348 ± $943 in the office setting and $574 ± $1262 in the ASC setting, depending on insurance coverage (p = 0.3019). Conclusions Though costs and time off of work differed between the two groups due to the different procedures in either setting, patient satisfaction metrics were comparable. While patient satisfaction depends on the operating physician, these results demonstrate that patients treated in-office and in an ASC have similar levels of approval with their hand surgery care.

Carpal Tunnel Decompression Under Wide Awake Local Anaesthesia No Tourniquet Technique (WALANT): A Cost Effective and Outcome Analysis

Introduction Wide-awake local anaesthesia with no tourniquet (WALANT) technique is cost-effective, resource-friendly, and safe. This can be used as an alternative to hand surgery procedures in outpatient units. It can be performed in clinics or operating rooms. Methods We retrospectively evaluated the outcomes of WALANT for carpal tunnel decompression (CTD) over two years. Measured results include wound infections, relief of symptoms, paraesthesia, haematoma, Visual Analogue Scale (VAS), hospital anxiety and depression scale score (HADS) and cost-effectiveness. Results Eighteen patients underwent CTD under the WALANT technique over two years. VAS score was recorded at 3.1 ± 1.2 during the procedure and 1.67 ± 0.933 at two weeks follow-up. Persistent paraesthesia was found in only one patient at follow-up. Minimal bleeding was recorded during the procedure. No wound infections, revision surgery or post-operative haematoma formation were found. Hospital Anxiety and Depression Scale (HADS) was reported as 4.77 ± 2.1 after surgery. WALANT was also cost-effective, with an overall amount of £20. Conclusion Performing carpal tunnel decompression under WALANT in one stop upper limb clinic is a safe and cost-effective technique with no significant patient-related complications.

Wide Awake Local Anesthesia No Tourniquet Technique in Hand Surgery: The Patient Experience

BACKGROUND

We attempted to evaluate patient satisfaction and overall experience during wide awake, local anesthesia, with no tourniquet (WALANT) hand surgery and quantify surgery-related outcomes.

METHODS

We conducted a retrospective analysis of patient demographics, comorbidities, and patient reported outcomes via Single Assessment Numeric Evaluation (SANE) scores collected pre- and postoperatively of patients undergoing WALANT surgery by the 2 participating senior authors. A solution of 1% lidocaine with 1:100,000 epinephrine was used by 1 surgeon, while the other used a 1:1 ratio of 1% lidocaine with 1:100,000 epinephrine and 0.5% bupivacaine for local anesthetic injection. Patients were administered a postoperative survey to assess patient experience, including anxiety and pain levels, and overall satisfaction in the perioperative period.

RESULTS

Overall, 97.7% of patients indicated that they would undergo a WALANT-style surgery if indicated in the future, 70.5% ate the day of surgery, and a total of 39.1% of patients reported driving to and from surgery. Postoperative SANE scores increased as compared with preoperative scores across all patients. The use of combination 1% lidocaine with 1:100,000 epinephrine and 0.5% bupivacaine was associated with lower intraoperative and postoperative visual analog scale pain scores.

CONCLUSIONS

WALANT hand surgery was generally well tolerated with excellent surgical outcomes. Patients reported ease of preparation for surgery, faster recovery, and lack of anesthetic side effects as the main benefits of wide-awake surgery. Combination use of lidocaine and bupivacaine may be better than lidocaine alone with respect to pain control in the initial recovery period.

Is Hand Surgery in the Procedure Room Setting Associated with Increased Surgical Site Infection? A Cohort Study of 2,717 Patients in the Veterans Affairs Population

PURPOSE

Procedure rooms (PRs) are increasingly used for hand surgeries, but few studies have directly compared surgical site infection (SSI) rates between the PR and operating room. We tested the hypothesis that procedure setting is not associated with an increased SSI incidence in the VA population.

METHODS

We identified carpal tunnel, trigger finger, and first dorsal compartment releases performed at our VA institution from 1999 to 2021 of which 717 were performed in the main operating room and 2,000 were performed in the PR. The incidence of SSI, defined as signs of wound infection within 60 days of the index procedure, which was treated with oral antibiotics, intravenous antibiotics, and/or operating room irrigation and debridement, was compared. We constructed a multivariable logistic regression analysis to assess the association between procedure setting and SSI incidence, adjusting for age, sex, procedure type, and comorbidities.

RESULTS

Surgical site infection incidence was 55/2,000 (2.8%) in the PR cohort and 20/717 (2.8%) in the operating room cohort. In the PR cohort, five (0.3%) cases required hospitalization for intravenous antibiotics of which two (0.1%) cases required operating room irrigation and debridement. In the operating room cohort, two (0.3%) cases required hospitalization for intravenous antibiotics of which one (0.1%) case required operating room irrigation and debridement. All other SSIs were treated with oral antibiotics alone. The procedure setting was not independently associated with SSI (adjusted odds ratio, 0.84 [95% confidence interval, 0.49, 1.48]). The only risk factor for SSI was trigger finger release (odds ratio, 2.13 [95% confidence interval, 1.32, 3.48] compared with carpal tunnel release), which was independent of setting.

CONCLUSIONS

Minor hand surgeries can be performed safely in the PR without an increased rate of SSI.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic II.

WALANT Technique versus Sedation for Endoscopic Carpal Tunnel Release

BACKGROUND

This study sought to investigate complication rates/perioperative metrics after endoscopic carpal tunnel release (eCTR) via wide-awake, local anesthesia, no tourniquet (WALANT) versus sedation or local anesthesia with a tourniquet.

METHODS

Patients aged 18 years or older who underwent an eCTR between April 28, 2018, and December 31, 2019, by 1 of 2 fellowship-trained surgeons at our single institution were retrospectively reviewed. Patients were divided into 3 groups: monitored anesthesia care with tourniquet (MT), local anesthesia with tourniquet (LT), and WALANT.

RESULTS

Inclusion criteria were met by 156 cases; 53 (34%) were performed under MT, 25 (16%) under LT, and 78 (50%) under WALANT. The MT group (46.1 ± 9.7) was statistically younger compared with LT (56.3 ± 14.1, P = .007) and WALANT groups (53.5 ± 15.8, P = .008), F(2, 153) = 6.465, P = .002. Wide-awake, local anesthesia, no tourniquet had decreased procedural times (10 minutes, SD: 2) compared with MT (11 minutes, SD: 2) and LT (11 minutes, SD: 2), F(2, 153) = 5.732, P = .004). Trends favored WALANT over MT and LT for average operating room time (20 minutes, SD: 3 vs 32 minutes, SD: 6 vs 23 minutes, SD: 3, respectively, F(2, 153) = 101.1, P < .001), postanesthesia care unit time (12 minutes, SD: 7 vs 1:12 minutes, SD: 26 vs 20 minutes, SD: 22, respectively, F(2, 153) =171.1, P < .001), and door-to-door time (1:37 minutes, SD: 21 vs 2:51 minutes, SD: 40 vs 1:46 minutes, SD: 33, respectively, F(2, 153) = 109.3, P < .001). There were no differences in complication rates.

CONCLUSIONS

Our data suggest favorable trends for patients undergoing eCTR via WALANT versus MT versus LT.

Optimizing the Use of Operating Rooms by Transitioning Common Hand Surgeries Into the Office Setting

PURPOSE

The purpose of this study was to examine the true monetary implications, at the health system level, of moving simple hand procedures, performed with wide-awake local anesthesia no tourniquet surgery, from the ambulatory surgery center (ASC) to office setting.

METHODS

We analyzed the costs, revenues, case times, and patient demographics for 2 cohorts of patients who underwent hand and non-hand surgical procedures over a 2-year period. We calculated the mean margin per minute for the top 5 procedures in non-hand orthopedic surgery subgroups, complex plastics hand, and non-hand plastic surgery. We then calculated the following: (1) hours operating room or ASC time gained by moving hand procedures to the office, (2) additional subgroup patients theoretically treated by using the ASC hours gained, and (3) net margin (in dollars) because of additional procedures.

RESULTS

Six board-certified hand surgeons performed 623 simple ASC and 808 in-office procedures, consisting of 795 carpal tunnel releases, 84 first dorsal compartment releases, and 446 trigger finger releases. The net margin per minute for simple ASC and in-office hand procedures was $25.01/min and $5.63/min, respectively. In the office setting, hand surgery freed up 821 hours of ASC time, which could be theoretically used to treat over 300 additional patients awaiting outpatient orthopedic hand or plastic surgery. Depending on the subspecialty and type of substituted cases, the theoretical net margin varied from -$150,413 to $3.9 million.

CONCLUSIONS

Transitioning simple hand operations out of ASCs realized a mean cost savings of 82% per case ($1,137 vs $206) and effectively opened 821 additional hours of operating room time over a 2-year period.

CLINICAL RELEVANCE

Transitioning simple hand operations out of the operating room setting and into the office setting reduces the cost of hand surgical care, improves operating room access for alternate procedures or patients, and validates the sustainability of safe and effective wide-awake local anesthesia no tourniquet surgery from a hospital system's financial standpoint.

Identifying High Direct Variable Costs of Open Carpal Tunnel Release Patients Using Time-Driven Activity-Based Costing

PURPOSE

To improve value in health care delivery, a deeper understanding of the cost drivers in hand surgery is necessary. Time-driven activity-based costing (TDABC) more accurately reflects true resource use compared with traditional accounting methods. This study used TDABC to explore the facility cost of carpal tunnel release and identify preoperative characteristics of high-cost patients.

METHODS

Using TDABC, we calculated the facility costs of 516 consecutive patients undergoing open carpal tunnel release at an orthopedic specialty hospital between 2015 and 2021. Patients in the top decile cost were defined as high-cost patients. Multivariable logistic regression was used to determine preoperative characteristics (age, sex, body mass index, race, ethnicity, Elixhauser comorbidity index, American Society of Anesthesiology score, preoperative Disabilities of the Arm, Shoulder and Hand score, Short-Form 12, and anesthesia type) independently associated with high-cost patients.

RESULTS

Surgery-related personnel costs were the main driver (38.0%) of total facility costs, followed by preoperative personnel costs (21.3%). There was a 1.8-fold variation in facility cost between patients in the 90th and 10th percentiles ($774.69 vs $431.35), with the widest cost variations belonging to medication costs ($17.67 vs $1.85; variation, 9.6-fold) and other supply costs ($213.56 vs $65.56; variation, 3.3-fold). Using multivariable regression, predictors of high cost were patient age and use of general anesthesia. Total facility costs correlated strongly with the total operating room time and incision to closure time.

CONCLUSIONS

Efforts to decrease operating room time may translate into reduced personnel costs and greater cost savings. Multidisciplinary initiatives to control medication expenses for patients at risk of high costs may narrow the existing variation in costs.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic and Decision Analysis II.

Minimizing Costs for Dorsal Wrist Ganglion Treatment: A Cost-Minimization Analysis

PURPOSE

Dorsal wrist ganglions are treated commonly with aspiration, or open or arthroscopic excision in operating room (OR) or procedure room (PR) settings. As it remains unclear which treatment strategy is most cost-effective in yielding cyst resolution, our purpose was to perform a formal cost-minimization analysis from the societal perspective in this context.

METHODS

A microsimulation decision analytic model evaluating 5 treatment strategies for dorsal wrist ganglions was developed, ending in either resolution or a single failed open revision surgical excision. Strategies included immediate open excision in the OR, immediate open excision in the PR, immediate arthroscopic excision in the OR, or 1 or 2 aspirations before each of the surgical options. Recurrence and complications rates were pooled from the literature for each treatment type. One-way sensitivity and threshold analyses were performed.

RESULTS

The most cost-minimal strategy was 2 aspiration attempts before open surgical excision in the PR setting ($1,603 ± 1,595 per resolved case), followed by 2 aspirations before open excision in the OR ($1,969 ± 2,165 per resolved case). Immediate arthroscopic excision was the costliest strategy ($6,539 ± 264 per resolved case). Single aspiration preoperatively was more cost-minimal than any form of immediate surgery ($2,918 ± 306 and $4,188 ± 306 per resolved case performed in the PR and OR, respectively).

CONCLUSIONS

From the societal perspective, performing 2 aspirations before surgical excision in the PR setting was the most cost-minimal treatment strategy, although in reference to surgeons who do not perform this procedure in the PR setting, open excision in the OR was nearly as cost-effective. As patient preferences may preclude routinely performing 2 aspirations, performing at least 1 aspiration before surgical excision improves the cost-effectiveness of dorsal wrist ganglions treatment.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic Decision Analysis II.

Surgeons' Recommendations for Return to Work After Carpal Tunnel Release

BACKGROUND

Recommendations and expectations regarding return to work (RTW) after carpal tunnel release (CTR) are often inconsistent. The study aim was to describe preferences of American Society for Surgery of the Hand (ASSH) members for perioperative management of patients following CTR, emphasizing surgeon preference regarding RTW.

METHODS

A survey was sent to all ASSH members with active e-mail addresses. The primary outcome was the recommended time frame for patients to RTW full duty. Secondarily, associated factors with RTW were evaluated.

RESULTS

In total, 4109 e-mail surveys were sent with 632 responses (15%). The highest proportion of respondents perform >100 CTRs per year (43.2%), have been practicing for >20 years (38.1%), and perform CTR using standard, open approach at outpatient surgery centers. The primary surgeon made recommendations about RTW in 99.5% of cases. For desk-based duties, the median recommended RTW time was 3 days; for duties requiring repetitive, light lifting of <10 lbs, the median recommended RTW time was 10 days; and for heavy manual duties, the median recommended RTW time was 30 days after CTR, according to the respondents. The 3 factors considered most influential for RTW were type of work, employer support, and financial considerations.

CONCLUSIONS

Our study demonstrates consistency among ASSH members in the perioperative management of CTR patients. The most important factors affecting RTW were type of work performed, employer support, and financial considerations. This study provides a meaningful foundation to manage expectations and guide patients, medical providers, and employers on the amount of time likely to be missed from work after CTR.

Moving Minor Hand Surgeries Out of the Operating Room and Into the Office-Based Procedure Room: A Population-Based Trend Analysis

PURPOSE

Our primary purpose was to quantify the proportion of minor hand surgeries performed in the procedure room (PR) setting in a population-based cohort. Given the increase in the literature that has emerged since the mid-2000s highlighting the benefits of the PR setting, we hypothesized that a trend analysis would reveal increased utilization over time.

METHODS

We used the 2006-2017 MarketScan Commercial Database to identify adults who underwent isolated minor hand surgeries performed in PR and operation room surgical settings in the United States. The Cochran-Armitage trends test was used to determine whether the proportion of all procedures (PR + operation room) changed over time.

RESULTS

A total of 257,581 surgeries were included in the analysis, of which 24,966 (11.5%) were performed in the PR. There was an increase in the overall number of surgeries under study as well as increased utilization of the PR setting for open carpal tunnel release, trigger digit release, DeQuervain release, hand or finger mass excision, and hand or finger cyst excision. The magnitude of the increases in PR utilization was small: between 2006 and 2017, the PR utilization increased by 1.4% for open carpal tunnel release, 5.4% for trigger digit release, 2.9% for DeQuervain release, 10.1% for hand or finger mass excision, and 6.5% for hand or finger cyst excision.

CONCLUSIONS

Despite the published benefits of the PR setting, we observed that the majority of these 5 common minor hand surgeries are performed in the operation room setting. Between 2006 and 2017, the office-based PR utilization increased slightly. The identification of barriers to PR utilization is needed to improve the value of care.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic II.

Charges for Distal Radius Fracture Fixation Are Affected by Fracture Pattern, Location of Service, and Anesthesia Type

BACKGROUND

This study sought to characterize charges associated with operative treatment of distal radius fractures and identify sources of variation contributing to overall cost.

METHODS

A retrospective study was performed using the New York Statewide Planning and Research Cooperative System database from 2009-2017. Outpatient claims were identified using the International Classification of Diseases-9/10-Clinical Modification diagnosis codes for distal radius fixation surgery. A multivariable mixed model regression was performed to identify variables contributing to total charges of the claim, including patient demographics, anesthesia method, surgery location (ambulatory surgery center [ASC] versus a hospital outpatient department [HOPD], operation time, insurance type, Charlson Comorbidity Index, and billed procedure codes.

RESULTS

A total of 9029 claims were included, finding older age, private primary insurance, surgery performed in a HOPD, and use of local anesthesia (vs general or regional) associated with increased total charges. There was no difference between gender, race, or ethnicity. Additionally, open reduction and internal fixation (ORIF), increased operative time/fracture complexity, and use of perioperative medications contributed significantly to overall costs.

CONCLUSIONS

Charges for distal radius fracture surgery performed in a HOPD were 28.3% higher than compared to an ASC, and cases with local anesthesia had higher billed claims compared to regional or general anesthesia. Furthermore, charges for percutaneous fixation were 54.6% lower than ORIF of extraarticular fracture, and claims had substantial geographic variation. These findings may be used by providers and payers to help improve value of distal radius fracture care.

LEVEL OF EVIDENCE

Level III.

Patient Concerns About Wide-Awake Local Anesthesia No Tourniquet (WALANT) Hand Surgery

PURPOSE

Wide-Awake Local Anesthetic No Tourniquet (WALANT) hand surgery avoids many medical risks associated with traditional anesthesia options. However, patients may be hesitant to choose the WALANT approach because of concerns about being awake during surgery. The purpose of this study was to characterize patients' thoughts and concerns about being awake during hand surgery and determine factors that may affect their decision about anesthesia options.

METHODS

Qualitative interviews were conducted with 15 patients with a diagnosis of carpal tunnel syndrome, trigger finger, or De Quervain's tenosynovitis who were receiving nonoperative care. Interviews were conducted using a semi-structured interview guide. Inductive thematic analysis was used to identify themes, concerns, and potential intervention targets.

RESULTS

Eight participants reported that patients have a general bias against being "knocked out," 7 of whom described concerns of uncertainty about emerging from anesthesia. All participants would consider WALANT, with some reservations. Recurrent themes included ensuring they would not feel, see, or hear the surgery and a preference toward distractions, such as music or engaging conversation. Of 15 participants, 13 would not want to see the surgery. For patients who found WALANT appealing, they valued the decreased time investment compared to sedation and the avoidance of side effects or exacerbation of comorbidities. A recurring theme of trust between surgeon and patient arose when deciding about anesthesia type.

CONCLUSIONS

Most patients are open to WALANT, but have concerns of hearing the surgery or feeling pain. Potential interventions to address these concerns, beyond establishing a trusting physician-patient relationship, include music or video with headphones and confirming skin numbness prior to surgery.

CLINICAL RELEVANCE

This study provides insights into patients' thought processes regarding WALANT hand surgery and give the surgeon talking points when counseling patients on their anesthesia type for hand surgery.

Impact of WALANT Hand Surgery in a Secondary Care Hospital in Spain. Benefits to the Patient and the Health System

Purpose

The aim of this study is to compare patient benefits and economic costs of hand surgeries using the wide-awake local anesthesia no tourniquet (WALANT) technique versus a conventional major outpatient suite and review outcomes and complications in a series of cases of patients operated on using the WALANT technique.

Methods

A prospective cohort study was first conducted comparing 150 cases of ambulatory hand surgery (carpal tunnel syndrome and trigger finger) using the WALANT technique and not requiring an operating room setting with 150 cases of outpatient surgery performed in an operating room involving a preoperative evaluation and the use of sedation and tourniquet. Preoperative, intraoperative, and postoperative pain was monitored, and days requiring postoperative analgesia were recorded. The resources and costs were evaluated. and patient satisfaction was assessed using a specific survey.Subsequently, 580 patient medical records were retrospectively reviewed, including 419 carpal tunnel syndrome and 197 trigger finger interventions (616 WALANT surgeries).

Results

Intraoperative pain was equivalent for both groups, and postoperative pain was significantly lower in the WALANT group, with a reduced need for analgesics. Satisfaction was greater for the local anesthesia group. The use of personnel resources and hospital materials was reduced in the WALANT group, with a total estimated cost savings of 1.019 USD per patient.There were no complications related to the WALANT technique and the lidocaine and adrenaline combination. We found a complication rate of 5.58%, and, in line with the literature, most complications were minor, managed conservatively, and not related to the anesthetic technique.

Conclusions

Procedures such as carpal tunnel and trigger finger surgeries can be safely performed using wide-awake surgery. Patient satisfaction is higher than with the conventional procedure performed in the operating room. Pain control is excellent, especially during the postoperative period.

Clinical relevance

Hand surgery patients benefit from the WALANT technique in terms of comfort and timeliness because there is no need for preoperative tests or evaluations. In addition, it represents significant savings in hospital resources. In our case series, complications were in line with those previously reported with other anesthetic techniques.

Prevalence, Burden, and Sources of Out-of-Network Billing in Elective Hand Surgery: A National Claims Database Analysis

PURPOSE

Surprise out-of-network (OON) bills can represent a considerable cost burden on patients. However, OON billing remains underexplored in elective, outpatient surgery procedures, which have greater latitude for patient choice. We aimed to answer the following questions: (1) What is the prevalence and magnitude of OON charges in hand surgery? (2) What are the sources of OON charges? and (3) What factors are associated with OON charges?

METHODS

We analyzed patient-level data from the Clinformatics Data Mart database. We identified patients undergoing carpal tunnel release, trigger finger release, wrist ganglion removal, de Quervain release, limited palmar fasciectomy, or thumb carpometacarpal arthroplasty at in-network facilities with an in-network primary surgeon. The primary outcome was the proportion of surgical episodes with at least 1 OON charge. Secondary outcomes included the magnitude of potential balance bills (portion of OON bill exclusive of the standardized payment and expected patient cost-sharing), sources of OON charges, and factors associated with OON charges.

RESULTS

Of 112,211 elective hand surgery episodes, 8% (9,158) had at least 1 OON charge. OON charges ranged from $1,154 (95% confidence interval, $1,018-$1,289) for wrist ganglion removal to $3,162 (95% confidence interval, $2,902-$3,423) for thumb carpometacarpal arthroplasty. In episodes with OON charges, the major sources of OON charges were anesthesiologists (75% of episodes), durable medical equipment (10% of episodes), and pathologists (9% of episodes). Site of service, geographic region, and health exchange-purchased plans were highly associated with OON charges.

CONCLUSIONS

Out-of-network billing can represent a substantial cost burden to patients and should be considered in perioperative decision-making in elective hand surgery.

CLINICAL RELEVANCE

Understanding the potential costs related to OON services during a surgical episode, and its drivers, allows surgeons to consider detailed cost discussions during perioperative decision making.

Wide-awake surgery in orthopaedics: "Scoping review"

INTRODUCTION

The anaesthetic modality "wide-awake" or "WALANT" (wide awake local anaesthesia not tourniquet) is based on the combination of a local anaesthetic with a vasoconstrictor to reduce bleeding during surgery and to avoid the use of a pneumatic tourniquet. The combination of 1% lidocaine together with 1:100,000 epinephrine is the most commonly used formula. The objective of this work is to carry out a review of the literature about this anaesthetic modality in the field of orthopaedic surgery and traumatology.

METHODS

PubMed and Embase databases were consulted with clearly defined operators. Two independent searches were conducted by two investigators, which were combined. Experimental, observational comparative studies, descriptive studies with n> 5 cases and cost studies were included. The individual results of the included studies are described.

RESULTS

A total of 8794 entries were collected of which a total of 36 studies were included in the review. A large number of these studies have been published since 2010 and refer almost entirely to hand surgery, with multiple indications applied. There is heterogeneity regarding the type of study design and variables studied, among others. In addition, there is a disparity when defining the methodology of the WALANT technique between the different studies.

CONCLUSIONS

This is the first comprehensive and reproducible review of the current state of the WALANT modality. There is great heterogeneity in terms of the study populations, the different comparators, variables studied between the different studies and a lack of precise details regarding the WALANT technique.

LEVEL OF EVIDENCE

III, Therapeutic study.

Optimization of Carpal Tunnel Syndrome Using WALANT Method

As surgical management of carpal tunnel release (CTR) becomes ever more common, extensive research has emerged to optimize the contextualization of this procedure. In particular, CTR under the wide-awake, local-anesthesia, no-tourniquet (WALANT) technique has emerged as a cost-effective, safe, and straightforward option for the millions who undergo this procedure worldwide. CTR under WALANT is associated with considerable cost savings and workflow efficiencies; it can be safely and effectively executed in an outpatient clinic under field sterility with less use of resources and production of waste, and it has consistently demonstrated standard or better post-operative pain control and satisfaction among patients. In this review of the literature, we describe the current findings on CTR using the WALANT technique.

Evaluation of Factors Affecting Return to Work Following Carpal Tunnel Release: A Statewide Cohort Study of Workers' Compensation Subjects

PURPOSE

Most randomized trials comparing open carpal tunnel release (OCTR) to endoscopic carpal tunnel release (ECTR) are not specific to a working population and focus mainly on how surgical technique has an impact on outcomes. This study's primary goal was to evaluate factors affecting days out of work (DOOW) following carpal tunnel release (CTR) in a working population and to evaluate for differences in medical costs, indemnity payments, disability ratings, and opioid use between OCTR and ECTR with the intent of determining whether one or the other surgical method was a determining factor.

METHODS

Using the Ohio Bureau of Workers' Compensation claims database, individuals were identified who underwent unilateral isolated CTR between 1993 and 2018. We excluded those who were on total disability, who underwent additional surgery within 6 months of their index CTR, including contralateral or revision CTR, and those not working during the same month as their index CTR. Outcomes were evaluated at 6 months after surgery. Multivariable linear regression was performed to evaluate covariates associated with DOOW.

RESULTS

Of the 4596 included participants, 569 (12.4%) and 4027 (87.6%) underwent ECTR and OCTR, respectively. Mean DOOW were 58.4 for participants undergoing OCTR and 56.6 for those undergoing ECTR. Carpal tunnel release technique was not predictive of DOOW. Net medical costs were 20.7% higher for those undergoing ECTR. Multivariable linear regression demonstrated the following significant predictors of higher DOOW: preoperative opioid use, legal representation, labor-intensive occupation, increasing lag time from injury to filing of a worker's compensation claim, and female sex. Being married, higher income community, and working in the public sector were associated with fewer DOOW.

CONCLUSIONS

In a large statewide worker's compensation population, demographic, occupational, psychosocial, and litigatory factors have a significant impact on DOOW following CTR, whereas differences in surgical technique between ECTR and OCTR did not.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic III.

Self-Reliance and Postoperative Hand Recovery After Simultaneous, Bilateral Endoscopic Carpal Tunnel Release: A Prospective Study

PURPOSE

Outcomes and recovery of endoscopic carpal tunnel release (ECTR) have been broadly examined in studies. The total recovery time can potentially be reduced by performing simultaneous, bilateral ECTR. In this study we prospectively investigated days to self-reliance. As secondary outcomes, we investigated direct postoperative recovery of hand function and pre and postoperative symptom severity after simultaneous, bilateral ECTR.

METHODS

In this single-center prospective case series, we included all patients willing to participate after undergoing bilateral ECTR between December 2015 and July 2019. Every patient recorded days to self-reliance (when a patient could perform basic activities of daily living without the need for assistance from another person) and completed a preoperative and postoperative Boston Carpal Tunnel Questionnaire (BCTQ) evaluating postoperative hand function and pre and postoperative symptom severity.

RESULTS

In total, 81 patients received simultaneous, bilateral ECTR. Median days until self-reliance was 4; mean number of days was 4.9. Concerning BCTQ scores, postoperative functional status increased significantly each day, and mean BCTQ score decreased gradually from intense difficulty to little difficulty in daily tasks over a period of 7 days. Preoperative BCTQ symptom severity showed significant improvement compared to postoperative symptoms, evolving from medium to slight symptoms.

CONCLUSIONS

Simultaneous, bilateral ECTR offers recovery to self-reliance in 4 to 5 days with a gradual and significant increase of hand function in the following postoperative days.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic II.

Cost Assessment of Plating Versus Tension Band Wiring Constructs for Treating Mayo Type 2A Olecranon Fractures

PURPOSE

Tension band wiring (TBW) or plating may be used for fixation with similar clinical outcomes for adults with displaced Mayo 2A olecranon fractures. The primary hypothesis is that total direct costs (TDCs) for surgery are lower for TBW than plating. Our secondary hypothesis is that combined surgical TDCs are lower for TBW even with a 100% rate of subsequent tension band hardware removal and a 0% rate of plate removal.

METHODS

Patients who underwent TBW or plating of an isolated unilateral Mayo 2A olecranon fracture between July 2011 and January 2020 at a single academic medical center were identified. Then, TDC for each surgery on plate fixation, TBW, and hardware removal was obtained and converted to 2020 US dollars using information technology cost tools provided by our institution. Finally, relative TDCs were compared between plate fixation and TBW groups using univariate and multivariable generalized estimating equations with log-link.

RESULTS

Of the 97 included patients, the mean age was 50 ± 21 years, and 48% were female. Tension band wiring and plate fixation were performed on 18% (17/97) and 82% (80/97) of male and female patients, respectively. Demographics were similar between groups, although the finding that plate fixation cost 2.6 times that of TBW within the index surgery was significant in the multivariable model, independent of potential confounders (coefficient 2.55, 95% confidence interval: 2.09-3.10). Additionally, mean TDC remained significantly greater for plate fixation even under the hypothetical situation where 100% TBW were removed, and the plate removal rate was 0% (cost difference 181%).

CONCLUSIONS

Using TBW relative to plate fixation may improve the cost of care for operative Mayo 2A olecranon fractures. Furthermore, this finding was robust to the rate of hardware removal.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic and Decision Analyses III.

Endoscopic Carpal Tunnel Release: Techniques, Controversies, and Comparison to Open Techniques

Endoscopic carpal tunnel release (ECTR) continues to rise in popularity as a treatment option for carpal tunnel syndrome. Numerous variations in technique and instrumentation currently exist, broadly classified into two-portal and single-portal techniques with antegrade and retrograde designs. ECTR is equally effective as open carpal tunnel release for alleviating symptoms of carpal tunnel syndrome with no differences in long-term outcomes. ECTR has an increased risk of transient nerve injury, whereas open carpal tunnel release has an increased risk of wound and scar complications. ECTR has higher direct costs but is associated with earlier return to work. ECTR is a safe and effective approach to carpal tunnel release in the hands of experienced surgeons.

Efficacy of Preemptive Analgesia on Tourniquet and Postoperative Pain Relief in Open Carpal Tunnel Release: A Prospective Randomized Control Trial

BACKGROUND

Preemptive analgesia has been used to reduce postsurgery pain and improve patient satisfaction. The effectiveness of multimodal preemptive analgesia in open carpal tunnel release under local anesthetic with a tourniquet is still debated. This study aimed to determine the effectiveness of preemptive analgesia on the postoperative tourniquet site and the surgical site.

METHODS

A total of 44 patients were randomly assigned to one of 2 groups. An experimental group was given 300 mg of gabapentin, 200 mg of celecoxib, and 500 mg of acetaminophen 2 hours before surgery. Placebos were given to the control group. All surgeries were done under local anesthetic by a specialist hand surgeon. A tourniquet was inflated to the recommended pressure. The outcomes included the immediate postoperative tourniquet site pain scores, surgical site pain scores (at 1, 6, 12, 18, and 24 hours after surgery), and acetaminophen consumption in the first 48 hours.

RESULT

The immediate postoperative tourniquet site pain score in the experimental group was significantly lower than in the placebo group. Although the surgical site pain score in the experimental group was significantly lower than the placebo group at 1, 6, 12, and 18 hours after surgery, these differences were not clinically significant. In addition, there was no statistically significant difference in surgical site pain score at 24 hours after surgery. The amount of acetaminophen consumed during the first 48 hours after surgery was significantly lower in the experimental group than in the placebo group.

CONCLUSION

Multimodal preemptive analgesia effectively reduced immediate postoperative pain at the tourniquet site in open carpal tunnel release. It also reduced postoperative acetaminophen consumption.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic II.

Combined distal median nerve block and local anesthesia with lidocaine:epinephrine for carpal tunnel release

Aim

Evaluating patient comfort during full awake local anesthesia in carpal tunnel release surgery, without tourniquet use, by using epinephrine to obtain a completely dry surgical field.

Methods

We included into the study 41 patients who underwent carpal tunnel syndrome surgery under full awake combined anesthesia, using a 9-point questionnaire. Pain and anxiety in all patients were evaluated through a Wang-Baker 0–5 scale. The injection solution consisted of 0.1cc of epinephrine and 10cc of 1% lidocaine (1:100.000); 5cc were used for local cutaneous anesthesia, and 5cc were used for distal median nerve block. All patients underwent a classic, open carpal tunnel release.

Results

Anxiety scores during anesthesia and the post-operative period did not show a statistically significant difference (p > 0.01), with keeping their levels at low perception scores (average score of 1.68 ± 0.38 CI 95%, with a modal value of 2, compared to an average of 0.78 ± 0.29 CI 95% with a modal value of 0). Similar results were obtained for pain scores during anesthesia (1.73 ± 0.48 CI 95% with a most frequent modal score of 1). Our results also showed that the effects of combined anesthesia in carpal tunnel release surgery persisted well into the 6-hour post-operative moment, pain scores remaining low, statistically significant similar to recorded values during the anesthesia moment (p > 0.01), at an average of 2.29 ± 0.5 CI 95% with a modal value of 1. No serious complications were recorded.

Conclusion

Combined distal median nerve block and local anesthesia with epinephrine:lidocaine provides a comfortable option for patients, with minimal risks of complications.

Methodologic and Reporting Quality of Economic Evaluations in Hand and Wrist Surgery: A Systematic Review

BACKGROUND

Economic evaluations can inform decision-making; however, previous publications have identified poor quality of economic evaluations in surgical specialties.

METHODS

Study periods were from January 1, 2006, to April 20, 2020 (methodologic quality) and January 1, 2014, to April 20, 2020 (reporting quality). Primary outcomes were methodologic quality [Guidelines for Authors and Peer Reviewers of Economic Submissions to The BMJ (Drummond's checklist), 33 points; Quality of Health Economic Studies (QHES), 100 points; Consensus on Health Economic Criteria (CHEC), 19 points] and reporting quality (Consolidated Health Economic Evaluation Standards (CHEERS) statement, 24 points).

RESULTS

Forty-seven hand economic evaluations were included. Partial economic analyses (i.e., cost analysis) were the most common (n = 34; 72 percent). Average scores of full economic evaluations (i.e., cost-utility analysis and cost-effectiveness analysis) were: Drummond's checklist, 27.08 of 33 (82.05 percent); QHES, 79.76 of 100 (79.76 percent); CHEC, 15.54 of 19 (81.78 percent); and CHEERS, 20.25 of 24 (84.38 percent). Cost utility analyses had the highest methodologic and reporting quality scores: Drummond's checklist, 28.89 of 35 (82.54 percent); QHES, 86.56 of 100 (86.56 percent); CHEC, 16.78 of 19 (88.30 percent); and CHEERS, 20.8 of 24 (86.67 percent). The association (multiple R) between CHEC and CHEERS was strongest: CHEC, 0.953; Drummond's checklist, 0.907; and QHES, 0.909.

CONCLUSIONS

Partial economic evaluations in hand surgery are prevalent but not very useful. The Consensus on Health Economic Criteria and Consolidated Health Economic Evaluation Standards should be used in tandem when undertaking and evaluating economic evaluation in hand surgery.

Cost Drivers in Carpal Tunnel Release Surgery: An Analysis of 8,717 Patients in New York State

PURPOSE

The annual high volume of carpal tunnel releases (CTRs) has a large financial impact on the health care system. Validating the cost drivers related to CTR in a large, diverse patient population may aid in developing cost reduction strategies to benefit health care systems.

METHODS

Adult patients with carpal tunnel syndrome who underwent CTR were identified in the New York Statewide Planning and Research Cooperative System database from 2016 to 2017. The Statewide Planning and Research Cooperative System is a comprehensive all-payer database that collects all inpatient and outpatient preadjudicated claims in New York. A multivariable mixed model regression with random effects was performed for the facility to assess the variables that contributed significantly to the total charge. The variables included were patient age, sex, anesthesia method, whether the surgery took place in an ambulatory surgery center or a hospital outpatient department, operation time in minutes, primary insurance type, race, ethnicity, Charlson Comorbidity Index, and categories for billed procedure codes.

RESULTS

During the period of 2016 to 2017, 8,717 claims were included, with a mean charge per claim of $4,865. General anesthesia was associated with higher charges than local anesthesia. A procedure at a hospital outpatient department was associated with an approximately 48.2% increase in the total charge compared with that at an ambulatory surgery center. A 1-minute increase in the operation time was associated with a 0.3% increase in the total charge. Claims with antiemetics, antihistamines, benzodiazepines, intravenous fluids, narcotic agents, or preoperative antibiotics were associated with higher total charges than claims that did not bill for these. Compared with endoscopic procedures, open procedures had a 44.3% decrease in the total charges.

CONCLUSIONS

This comprehensive multivariable model has validated that general anesthesia, hospital-based surgery, the use of antibiotics and opioids, longer operative times, and endoscopic CTR significantly increased the cost of surgery.

TYPE OF STUDY/LEVEL OF EVIDENCE

Economic and decision analyses II.

Are We Working Harder for Less Pay? A Survey of Medicare Reimbursement for Hand and Upper Extremity Surgery

BACKGROUND

Ongoing concern for declining Medicare payment to surgeons may incentivize surgeons to perform more cases to maintain productivity goals. The authors evaluated trends in physician payment, patient charges, and reimbursement ratios for the most common hand and upper extremity surgical procedures.

METHODS

The authors examined Medicare surgeon payment, patient charges, and surgical volume from 2012 to 2017 for 83 common surgical procedures, incorporating the year-to-year Consumer Price Index to adjust for inflation. The reimbursement ratio was calculated by dividing payment by charge. Weighted (by surgery type and volume) averages were calculated.

RESULTS

Total Medicare surgeon payment increased 5.6 percent to $272 million for the studied procedures. Patient charges were seven times greater than payment, growing 24 percent to $1.9 billion. Despite growth of total payment, the average overall weighted payment for a single surgery decreased 3.5 percent. The average weighted patient charge increased 8 percent, whereas the reimbursement ratio decreased 13 percent. A hand surgeon would need to perform three more cases per 100 in 2017 to maintain the same reimbursement received in 2012. After categorizing these 83 surgical procedures, distal radius fixation (>3 parts, 21 percent increase; >2-part intra-articular, extra-articular, and percutaneous pinning, 17 percent increase), bony trauma proximal to the distal radius (10 percent increase), and upper extremity flap (5 percent increase) were subject to the greatest increases in payment. Payment for forearm fasciotomy (39 percent decrease), endoscopic carpal tunnel release (30 percent decrease), and mass excisions proximal to the wrist (18 percent decrease) decreased the most.

CONCLUSIONS

From 2012 to 2017, despite a disproportionate increase in procedure charges, Medicare surgeon payment has not decreased substantially; however, total reimbursement is multifactorial and involves multiple sources of revenue and cost.

Cost Implications of Varying the Surgical Setting and Anesthesia Type for Dorsal Wrist Ganglion Cyst Excision Surgery

BACKGROUND

Minimizing expenses attributed to dorsal wrist ganglion cyst excisions, a common minor surgical procedure, presents potential for health care cost savings. Varying the surgical setting (operating room versus procedure room) and type of anesthesia (local-only, monitored anesthesia care, or monitored with regional or general anesthesia) may affect total operative costs.

METHODS

Patients who underwent an isolated unilateral dorsal wrist ganglion cyst excision between January of 2014 and October of 2019 at a single academic medical center were identified by CPT code. The total direct costs for each surgical encounter that met inclusion criteria were calculated. The relative total direct costs were compared between surgical setting and anesthesia type groups. Univariate and multivariable gamma regression models were used to identify factors associated with surgical costs.

RESULTS

A total of 192 patients were included; 26 cases (14 percent) were performed in the procedure room and 166 cases (86 percent) were performed in the operating room. No significant differences in demographic factors were identified between groups. Univariate analysis demonstrated that use of operating room/monitored anesthesia care, operating room/monitored anesthesia care with regional anesthesia, and operating room/general anesthesia groups, as compared to procedure room/local-only, yielded significantly greater median costs (1.76-, 2.34-, and 2.44-fold greater, respectively). Multivariable analysis demonstrated 1.80-, 2.10-, and 2.31-fold greater costs with use of operating room/monitored anesthesia care, operating room/monitored anesthesia care with regional anesthesia, and operating room/general anesthesia relative to procedure room/local-only, respectively.

CONCLUSION

Performing dorsal wrist ganglion cyst excisions in a procedure room with local-only anesthesia minimizes operative direct costs relative to use of the operating room and other anesthetic types.

Important updates of finger fractures, entrapment neuropathies and wide-awake surgery of the upper extremity

Hand surgery is rapidly changing. The wide-awake approach, minimum dissection surgery and early protected movement have changed many things. This is an update of some of the important changes regarding early protected movement with K-wired finger fracture management, simplification of nerve decompression surgery, such as elbow median and ulnar nerve releases, and some new areas in performing surgery with wide-awake local anaesthesia without tourniquet.

Patient Perspectives on the Cost of Hand Surgery

BACKGROUND

Health-care expenditures in the U.S. are continually rising, prompting providers, patients, and payers to search for solutions to reduce costs while maintaining quality. The present study seeks to define the out-of-pocket price that patients undergoing hand surgery are willing to pay, and also queries the potential cost-cutting measures that patients are most and least comfortable with. We hypothesized that respondents would be less accepting of higher out-of-pocket costs.

METHODS

A survey was developed and distributed to paid, anonymous respondents through Amazon Mechanical Turk. The survey introduced 3 procedures: carpal tunnel release, cubital tunnel release, and open reduction and internal fixation of a distal radial fracture. Respondents were randomized to 1 of 5 out-of-pocket price options for each procedure and asked if they would pay that price. Respondents were then presented with various cost-saving methods and asked to select the options that made them most uncomfortable, even if those would save them out-of-pocket costs.

RESULTS

There were 1,408 respondents with a mean age of 37 years (range, 18 to 74 years). Nearly 80% of respondents were willing to pay for all 3 of the procedures regardless of which price they were presented. Carpal tunnel release was the most price-sensitive, with rejection rates of 17% at the highest price ($3,000) and 6% at the lowest ($250). Open reduction and internal fixation was the least price-sensitive, with rejection rates of 11% and 6% at the highest and lowest price, respectively. The use of older-generation implants was the least acceptable cost-cutting measure, at 50% of respondents.

CONCLUSIONS

The present study showed that most patients are willing to pay a considerable amount of money out of pocket for hand surgery after the condition, treatment, and outcomes are explained to them. Furthermore, respondents are hesitant to sacrifice advanced technology despite increased costs.

Cost Savings of Carpal Tunnel Release Performed In-Clinic Compared to an Ambulatory Surgery Center: Time-Driven Activity-Based-Costing

Purpose: The purpose of our study was to investigate carpal tunnel release (CTR) performed in the clinic versus the ambulatory surgery center (ASC) to evaluate for potential cost savings. Methods: Patients who underwent either CTR in clinic under a local anesthetic or CTR in the ASC with sedation and local anesthetic were prospectively enrolled in a registry between 2014 and 2016. All patients completed a Visual Analog Scale (VAS) pain scale for procedural and postprocedure pain. Time-Driven Activity-Based Costing (TDABC) was utilized to quantify cost of both CTR in clinic and CTR in the ASC. Statistical analysis involved parametric comparative tests between patient cohorts for both the TDABC-cost and patient pain. Results: A total of 59 participants completed the postprocedure CTR survey during the study period, 23 (38.9%) in the ASC group and 36 (61.1%) in the clinic group. Overall time for the procedure from patient arrival to discharge was significantly longer for the ASC cases, averaging 215.7 minutes (range: 201-230) compared to 78.6 minutes (range: 59-98) in the clinic group (P < .01). Both procedural and postoperative VAS pain scores were comparable between clinic and ASC cohorts, procedural pain: 1.8 vs 1.9 (P = .91) and postoperative pain: 4.8 vs 4.9 (P = .88). TDABC analysis estimated ASC CTR procedures to cost an average of $557.07 ($522.06-$592.08) and clinic procedures to cost an average of $151.92 ($142.59-$161.25) (P < .05). Conclusions: CTR in the clinic setting results in significant cost savings compared to CTR in the ASC with no difference in pain scores during the procedure or postoperative period. Level of Evidence: Therapeutic Level II.

The impact of WALANT anesthesia and office-based settings on patient satisfaction after carpal tunnel release: A patient reported outcome study

HYPOTHESIS

Wide awake local anesthesia with no tourniquet (WALANT) and office-based procedures are used in hand surgery. There are limited literature data on patient satisfaction when comparing methods of anesthesia and location of surgery.

METHODS

We conducted a retrospective single-surgeon study with patient reported satisfaction in three groups. We compared patient impressions of anesthesia type; WALANT vs locoregional anesthesia plus sedation. We also compared satisfaction in three surgery settings; office surgery vs hospital ambulatory minor procedure room vs main operating room. Group 1 office surgery patients had ultrasound guided surgery with WALANT. Group 2 main operating room surgery patients also had ultrasound guided surgery with WALANT. Group 3 main operating room patients had endoscopic surgery with sedation and a tourniquet. Each group had 30 patients with a minimum follow up of 2 months. We measured overall satisfaction, satisfaction with the organization of care, satisfaction with the administration of anesthesia, and satisfaction with the quality of anesthesia. We also collected secondary data on the resolution of the neuropathic symptoms.

RESULTS

Procedures performed in an office-based setting showed higher rates of patient satisfaction when compared to the ambulatory day surgery setting. WALANT anesthesia also showed significantly higher rates of patient satisfaction on a numerical analog scale when compared to sedation based on, irrespective of the surgical setting. All patients had resolution of their neuropathic symptoms regardless of the technique performed.

CONCLUSION

We found that carpal tunnel releases performed in an office-based setting produces superior patient satisfaction. WALANT anesthesia also provides improved patient satisfaction when compared to sedation and monitoring techniques, irrespective of the surgical setting and location. Carpal tunnel release with WALANT in an office-based setting is better for patient comfort and satisfaction, with no evidence of lesser clinical outcomes at a short term follow-up.

LEVEL OF EVIDENCE

III.

Early Outcomes of Endoscopic Versus Open Carpal Tunnel Release

PURPOSE

To compare the short-term outcomes of endoscopic carpal tunnel release (ECTR) and open carpal tunnel release (OCTR), including patient-reported outcomes, pain and satisfaction scores, return to work, and postoperative prescription pain medication use.

METHODS

We included all patients over 18 years of age undergoing carpal tunnel release at a single hand center between January 2018 and December 2019. The carpal tunnel release method was driven by variations in surgeon practice. Data from patient-reported outcomes measurement information system (PROMIS) questionnaires and brief Michigan hand outcomes questionnaires and data on patient-reported pain levels, satisfaction with care, return to work, and postoperative prescription pain medication use were collected at preoperative visits and the first follow-up visit between postoperative days 7 and 14.

RESULTS

We included 678 (586 ECTR and 92 OCTR) patients. The median age was 58 years, and 75% of the patients were women. At early follow up, patients who underwent OCTR reported significantly lower postoperative PROMIS upper-extremity scores than those who underwent ECTR (median, 32 vs 36 points, respectively) but similar postoperative PROMIS pain interference, global physical health, global mental health, and brief Michigan hand outcomes questionnaire scores. The postoperative pain and satisfaction scores were similar between the 2 groups. In multivariable models, patients who underwent OCTR had 62% lower odds of returning to work and 30% greater odds of remaining on a postoperative pain prescription at the first follow-up visit.

CONCLUSIONS

This study found no evidence suggesting the definitive superiority of 1 surgical technique with regard to clinical outcomes in the early postoperative period. However, OCTR was associated with lower postoperative PROMIS upper-extremity scores of unclear clinical significance, higher odds of remaining on pain medication, and lower odds of returning to work by the first postoperative visit. Endoscopic carpal tunnel release may be preferred in patients who need to return to work within the first 2 weeks after the procedure.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Comparison of Complication Risk Following Trigger Digit Release Performed in the Office Versus the Operating Room: A Population-Based Assessment

PURPOSE

Trigger digit release (TDR) performed in an office-based procedure room (PR) setting minimizes surgical costs compared with that performed in an operating room (OR); yet, it remains unclear whether the rates of major complications differ by setting. We hypothesized that surgical setting does not have an impact on the rate of major complications after TDR.

METHODS

Adult patients who underwent isolated TDR from 2006 to 2015 were identified from the MarketScan commercial database (IBM) using the provider current procedural terminology code 26055 with a concordant diagnosis on the same claim line (International Classification of Diseases, ninth revision, clinical modification 727.03). The PR cohort was defined by presence of a place-of-service code for an in-office procedure without OR or ambulatory center revenue codes, or anesthesiologist claims, on the day of the surgery. The OR cohort was defined by presence of an OR revenue code. We identified major medical complications, surgical site complications, as well as iatrogenic neurovascular and tendon complications within 90 days of the surgery using International Classification of Diseases, ninth revision, clinical modification diagnosis and/or current procedural terminology codes. Multivariable logistic regression was used to compare the risk of complications between the PR and OR groups while controlling for Elixhauser comorbidities, smoking, and demographics.

RESULTS

For 7,640 PR and 29,962 OR cases, the pooled rate of major medical complications was 0.99% (76/7,640) and 1.47% (440/29,962), respectively. The PR setting was associated with a significantly lower risk of major medical complications in the multivariable analysis (adjusted odds ratio 0.76; 95% confidence interval 0.60-0.98). The pooled rate of surgical site complications was 0.67% (51/7,640) and 0.88% (265/29,962) for the PR and OR cases, respectively, with no difference between the surgical settings in the multivariable analysis (adjusted odds ratio 0.81; 95% confidence interval 0.60-1.10). Iatrogenic complications were infrequently observed (PR 5/7,640 [0.07%]; OR 26/29,962 [0.09%]).

CONCLUSIONS

Compared with performing TDR in the OR using a spectrum of commonly used anesthesia types, performing TDR in the PR using local-only anesthesia was associated with a comparably low risk of major medical complications, surgical complications, and iatrogenic complications.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic II.

Optimizing Costs and Outcomes for Carpal Tunnel Release Surgery: A Cost-Effectiveness Analysis from Societal and Health-Care System Perspectives

BACKGROUND

It is unclear which carpal tunnel release (CTR) strategy (i.e., which combination of surgical technique and setting) is most cost-effective. A cost-effectiveness analysis was performed to compare (1) open CTR in the procedure room (OCTR/PR), (2) OCTR in the operating room (OCTR/OR), and (3) endoscopic CTR in the operating room (ECTR/OR).

METHODS

A decision analytic model was used to compare costs and health utilities between treatment strategies. Utility and probability parameters were identified from the literature. Medical costs were estimated with Medicare ambulatory surgical payment data. Indirect costs were related to days out of work due to surgical recovery and complications. The effectiveness outcome was quality-adjusted life years (QALYs). Probabilistic sensitivity analyses and one-way sensitivity analyses were performed. Cost-effectiveness was assessed from the societal and health-care system perspectives with use of a willingness-to-pay threshold of $100,000/QALY.

RESULTS

In the base-case analysis, OCTR/PR was more cost-effective than OCTR/OR and ECTR/OR from the societal perspective. The mean total costs and QALYs per patient were $29,738 ± $4,098 and 0.88 ± 0.08 for OCTR/PR, $30,002 ± $4,098 and 0.88 ± 0.08 for OCTR/OR, and $41,311 ± $4,833 and 0.87 ± 0.08 for ECTR/OR. OCTR/PR was also the most cost-effective strategy from the health-care system perspective. These findings were robust in the probabilistic sensitivity analyses: OCTR/PR was the dominant strategy (greater QALYs at a lower cost) in 55% and 61% of iterations from societal and health-care system perspectives, respectively. One-way sensitivity analysis demonstrated that OCTR/PR and OCTR/OR remained more cost-effective than ECTR/OR from a societal perspective under the following conditions: $0 surgical cost of ECTR, 0% revision rate following ECTR, equalization of the return-to-work rate between OCTR and ECTR, or 0 days out of work following ECTR. OCTR/OR became more cost-effective than OCTR/PR with the median nerve injury rate tripling and doubling from societal and health-care system perspectives, respectively, or if surgical direct costs in the PR exceeded those in the OR.

CONCLUSIONS

Compared with OCTR/OR and ECTR/OR, OCTR/PR minimizes costs to the health-care system and society while providing favorable outcomes.

LEVEL OF EVIDENCE

Economic and Decision Analysis Level III. See Instructions for Authors for a complete description of levels of evidence.

Comparison of Complication Risk for Open Carpal Tunnel Release: In-office versus Operating Room Settings

Background:

Performing open carpal tunnel release (oCTR) in an office-based procedure room setting (PR) decreases surgical costs when compared with the operating room (OR). However, it is unclear if the risk of major medical, wound, and iatrogenic complications differ between settings. Our purpose was to compare the risk of major medical complications associated with oCTR between PR and OR settings.

Methods:

Utilizing the MarketScan Database, we identified adults undergoing isolated oCTR between 2006 and 2015 performed in PR and OR settings. ICD-9-CM and/or CPT codes were used to identify major medical complications, surgical site complications, and iatrogenic complications within 90 days of oCTR. Multivariable logistic regression was used to compare complication risk between groups.

Results:

Of the 2134 PR and 76,216 OR cases, the risk of major medical complications was 0.89% (19/2134) and 1.20% (914/76,216), respectively, with no difference observed in the multivariable analysis (adjusted odds ratio [OR] 0.84; 95% CI 0.53–1.33; P=0.45). Risk of surgical site complications was 0.56% (12/2134) and 0.81% (616/76,216) for the PR and OR, respectively, with no difference in the multivariable analysis (OR 0.68; 95% C.I. 0.38–1.22; P=0.19). Iatrogenic complications were rarely observed (PR 1/2134 [0.05%], OR 71/76,216 [0.09%]), which precluded multivariable modeling.

Conclusion:

These results support a similar safety profile for both the PR and OR surgical settings following oCTR with similar pooled major medical complications, pooled wound/surgical site complications, and iatrogenic complications.

Evaluating the Safety of the Hand Surgery Procedure Room: A Single-Center Cohort of 1,404 Surgical Encounters

PURPOSE

Performing hand surgeries in the procedure room (PR) setting instead of the operating room effectively reduces surgical costs. Understanding the safety or complication rates associated with the PR is important in determining the value of its use. Our purpose was to describe the incidence of medical and surgical complications among patients undergoing minor hand surgeries in the PR.

METHODS

We retrospectively reviewed all adult patients who underwent an operation in the PR setting between December 2013 and May 2019 at a single tertiary academic medical center by 1 of 5 fellowship-trained orthopedic hand surgeons. Baseline patient characteristics were described. Complication rates were obtained via chart review.

RESULTS

For 1,404 PR surgical encounters, 1,796 procedures were performed. Mean patient age was 59 ± 15 years, 809 were female (57.6%), and average follow-up was 104 days. The most common surgeries were carpal tunnel release (39.9%), trigger finger release (35.9%), and finger mass or cyst excision (9.6%). Most surgeries were performed using a nonpneumatic wrist tourniquet (58%), whereas 42% used no tourniquet. No patient experienced a major medical complication. No procedure was aborted owing to intolerance. No patient required admission. No intraoperative surgical or medical complications occurred. Observed complications included delayed capillary refill requiring phentolamine administration after a trigger thumb release performed using epinephrine without a tourniquet (n = 1; 0.1%), complex regional pain syndrome (n = 3; 0.2%), infection requiring surgical debridement (n = 2; 0.2%), and recurrent symptoms requiring reoperation (n = 8; 0.7%).

CONCLUSIONS

In this cohort of patients in whom surgery was performed in a PR, there were no major intraoperative surgical or medical complications. There was a low rate of postoperative infection, development of complex regional pain syndrome, and a low need for revision surgery. These observations do not support the concern for safety as a barrier to performing minor hand surgery in the PR setting.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Comparison of direct surgical cost for humeral shaft fracture fixation: open reduction internal fixation versus intramedullary nailing

Background and/or Hypothesis

Prior literature has supported similar complication rates and outcomes for humeral shaft fractures treated with open reduction internal fixation (ORIF) with a plate/screw construct versus intramedullary nailing (IMN). The purpose of this study is to determine whether surgical encounter total direct costs (SETDCs) differ between ORIF and IMN for these fractures.

Methods

Adult patients (≥ 18 years) treated for isolated humeral shaft fractures by ORIF or IMN between June 18, 2014 and June 17, 2019 at a single tertiary academic center were available for inclusion. SETDCs for ORIF and IMN groups, obtained through our institution's information technology value tool, were adjusted to 2019 US dollars and converted to relative costs per institutional policy. SETDCs for ORIF and IMN were compared using the Wilcoxon rank-sum test.

Results

Demographic factors did not differ between ORIF and IMN cohorts with the exception of age (mean of 18.6 years older for IMN; P < .001) and American Society of Anesthesiologist class (higher for IMN; P = .029). Substantial cost variation was observed among the 39 included ORIF and 21 IMN cases. Costs pertaining to operating room utilization (P = .77), implants (P = .64), and the recovery room (P = .27) were similar for ORIF and IMN, whereas supply costs were significantly greater for IMN with a median (interquartile range) of 0.21 (0.17 ∼ 0.28), more than twice the supply costs of ORIF (0.09 [0.05 ∼ 0.13], P < .001). The SETDC of IMN was significantly greater than that of ORIF (median [interquartile range]:1.00 [0.9 to 1.13] vs. 0.83 [0.71∼1.05], respectively; P = .047).

Discussion and/or Conclusion

Our study found that the SETDC for humeral shaft fracture fixation was greater for IMN than for ORIF, although patient cohorts differed significantly with respect to age and the American Society of Anesthesiologist class. Surgeons should take these findings into consideration when consenting patients with humeral shaft fractures for the appropriate fixation type.