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Background: Given that gender-affirming surgery (GAS) is considered medically necessary for transgender and gender-diverse individuals who desire it, the aim of this study was to assess the concordance of insurance criteria for GAS with the most recent World Professional Association for Transgender Health Standards of Care for the Health of Transgender and Gender Diverse People, Version 8., Methods: Insurance policies for coverage of gender-affirming genital surgery ("bottom surgery"), chest surgery ("top surgery"), and facial reconstruction from companies representing 80% of the market coverage in each state were evaluated. Policies were classified into 3 categories: no coverage, case by case, or preauthorization. Among preauthorization policies, criteria for coverage of specific procedures were analyzed for adherence to the Standards of Care for the Health of Transgender and Gender Diverse People, Version 8., Results: Bottom-surgery policies were most concordant for age and gender dysphoria criteria, and transmasculine top surgery policies were most concordant for hormone therapy, continuous living in a congruent gender role, and referral criteria. Transfeminine top surgery criteria were more restrictive than transmasculine criteria. The most discordant criteria were for hormone therapy, being required for at least 12 months before surgery in the majority of surveyed policies. Many specific procedures and treatments were excluded, especially facial GAS with cosmetic overlap. Reversal and revisionary procedures were covered by less than 25% of policies., Conclusions: Compared with previous literature, insurance coverage and criteria alignment are becoming more concordant with medical guidelines. However, significant barriers to care for GAS remain., (Copyright © 2023 by the American Society of Plastic Surgeons.)

Objective: Shunt-related craniosynostosis (SRC) is the premature fusion of cranial sutures possibly due to a loss of tension across dura and suture lines after placement of a shunt for hydrocephalus. As modifications in approaches toward shunting represent a modifiable risk factor, prior literature has investigated the determinants and outcomes. However, the data remain highly variable and are limited by single-institution studies., Methods: A systematic search of PubMed, Embase, and Web of Science from inception to February 2022 was conducted. Studies were screened by 2 reviewers for eligibility based on predefined inclusion/exclusion criteria., Results: In the 9 included articles, the average follow-up time for the entire cohort ranged from 1.5 to 4.2 years. The pooled incidence of SRC across all 9 studies was 6.5% (140/2142), with an individual range of 0.53% (1/188) to 48.8% (61/125). The average time from shunt placement to SRC diagnosis ranged from 0.25 years to 4.6 years. 61% (65/110) of cases included only one suture, 88% (25/28) of these involved the sagittal suture, and those cases with multiple fusions also had 98% involvement of the sagittal suture (45/46). Overall, 94% (1783/1888) of patients had a fixed shunt placed., Conclusions: Shunt-related craniosynostosis is likely an underreported complication in the treatment of hydrocephalus. Older age at shunt placement, increased number of shunt revision procedures, and lower valve pressure settings may be risk factors for SRC development. Results also indicate that craniosynostosis can develop months to years after shunting. Future quality studies with standardization of data reporting processes are warranted to investigate this clinical problem., Competing Interests: The authors report no conflicts of interest., (Copyright © 2024 by Mutaz B. Habal, MD.)

Background: Despite established medical necessity, laws prohibiting coverage discrimination, and increasing numbers of transgender and gender-diverse patients seeking gender-affirming surgery (GAS), cost and restrictive insurance policies continue to be the most common barriers. As recent legislation places further restrictions on GAS, this study aimed to provide an updated review of insurance policies and assess the relationship between legislative favorability and coverage., Methods: Insurance policies of groups representing 80% market coverage in each state were collected for gender-affirming chest, genital, and facial surgery. Policies were categorized based on previously published methodologies: never-covered, case-by-case, and preauthorization. The relationship between established scores of legislative favorability and policy coverage in each state was analyzed and compared across regions., Results: Of the 316 analyzed policies, coverage was preauthorized most often for genital (94.0%), masculinizing top (93%), feminizing top (74%), and facial reconstruction (24%). Higher legislative scores in the Northeast and West, and individual states were predictive of increased genital, facial, and all forms of adolescent GAS, but were not correlated to chest GAS., Conclusions: Compared with previous studies, our findings suggest that there is a growing acceptance of GAS as medically necessary. However, the correlation between legislative scores and genital, face, and adolescent GAS coverage may suggest increased reliance on sociopolitical factors for access in the absence of comprehensive medical guidelines, which are more established for chest reconstruction. Significantly higher coverage of masculinizing versus feminizing chest surgery suggests additional burden of proof for GAS with a cosmetic overlap., (Copyright © 2023 by the American Society of Plastic Surgeons.)

Background: Masculinizing chest reconstruction (MCR) has been shown to improve quality of life and gender dysphoria in transmasculine adult patients. As nationwide access to gender-affirming care expands, more adolescents are seeking MCR. However, there is a paucity of literature examining patient characteristics, safety, and disparities among this population., Methods: Cases of MCR were selected from the pediatric and adult American College of Surgeons and National Surgical Quality Improvement Program. Adolescent (18 years and older) and young adult (aged 19-25 years) transgender patients were analyzed for differences in demographics, comorbidities, surgical characteristics, and postoperative complications., Results: A total of 1287 cases were identified, with an adolescent cohort of 189 patients. The proportion of White patients to other races was greater among adolescents than young adults (91.2% vs 82.4%, P = 0.007). Of adolescents and young adults, 6.0% and 11.1% identified as Hispanic/Latino, respectively (P = 0.059). Rates of all-cause postoperative complications were similar between adolescents (4.2%) and young adults (4.1%). Multivariate binary logistic regression showed that Black or African American patients experienced more all-cause postoperative complications than other races after controlling for American Society of Anesthesiologists classification, age group, and body mass index (odds ratio, 2.8; 95% confidence interval, 1.3-5.9; P = 0.008)., Conclusions: Masculinizing chest reconstruction is equally safe for transmasculine adolescent and young adult patients. However, our data point to racial disparities in access to care and postoperative outcomes. An intersectional approach is needed to better understand the unique health care needs and barriers to care of minority transgender youth., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Virtual surgical planning (VSP) decreases reliance on intraoperative subjective assessment of aesthetic and functional outcomes in craniofacial surgery. Here, we describe our experience of using VSP for complex craniosynostosis surgery to inform preoperative decision making and optimize postoperative outcomes., Methods: Chart review was performed for children treated with craniosynostosis at our institution from 2015 to 2021. Eight VSP maneuvers were defined and assigned to each patient when applicable: (1) complex cranioplasty: combined autologous and synthetic; (2) autologous cranioplasty; (3) synthetic cranioplasty; (4) vector analysis and distractor placement; (5) complex osteotomies; (6) multilayered intraoperative plans; (7) volume analysis; and (8) communication with parents. Outcomes between VSP and non-VSP cohorts were compared., Results: Of 166 total cases, 32 were considered complex, defined by multisutural craniosynostosis, syndromic craniosynostosis, or revision status. Of these complex cases, 20 underwent VSP and 12 did not. There was no difference in mean operative time between the VSP and non-VSP groups (541 versus 532 min, P = 0.82) or in unexpected return to operating room (10.5% versus 8.3%, P = 0.84). VSP was most often used to communicate the surgical plan with parents (90%) and plan complex osteotomies (85%)., Conclusions: In this cohort, VSP was most often used to communicate the surgical plan with families and plan complex osteotomies. Our results indicate that VSP may improve intraoperative efficiency and safety for complex craniosynostosis surgery. This tool can be considered a useful adjunct to plan and guide intraoperative decisions in complex cases, reducing variability and guiding parental expectations., Competing Interests: The authors have no financial interest to declare in relation to the content of this article., (Copyright © 2024 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

Objective: Assess the evidence for Enhanced Recovery After Surgery (ERAS) protocols in the cleft palate population., Design: A systematic review of MEDLINE, Embase, Cochrane, and CINAHL databases for articles detailing the use of ERAS protocols in patients undergoing primary palatoplasty., Setting: New York-Presbyterian Hospital., Patients/participants: Patients with cleft palate undergoing primary palatoplasty., Interventions: Meta-analysis of reported patient outcomes in ERAS and control cohorts., Main Outcome Measure(s): Methodological quality of included studies, opioid use, postoperative length of stay (LOS), rate of return to emergency department (ED)/readmission, and postoperative complications., Results: Following screening, 6 original articles were included; all were of Modified Downs & Black (MD&B) good or fair quality. A total of 354 and 366 were in ERAS and control cohorts, respectively. Meta-analysis of comparable ERAS studies showed a difference in LOS of 0.78 days for ERAS cohorts when compared to controls ( P  < .05). Additionally, ERAS patients utilized significantly less postoperative opioids than control patients ( P  < .05). Meta-analysis of the rate of readmission/return to ED shows no difference between ERAS and control groups ( P  = .59). However, the lack of standardized reporting across studies limited the power of meta-analyses., Conclusions: ERAS protocols for cleft palate repair offer many advantages for patients, including a significant decrease in the LOS and postoperative opioid use without elevating readmission and return to ED rates. However, this analysis was limited by the paucity of literature on the topic. Better standardization of data reporting in ERAS protocols is needed to facilitate pooled meta-analysis to analyze their effectiveness.

Purpose: Immediate postmastectomy breast reconstruction plays an integral role in patient care because of its psychosocial benefits. New York State (NYS) passed the 2010 Breast Cancer Provider Discussion Law with the aim of increasing patient awareness of reconstructive options through mandating plastic surgery referral at the time of cancer diagnosis. Short-term analysis of the years surrounding implementation suggests the law increased access to reconstruction, especially for certain minority groups. However, given the continued presence of disparities in access to autologous reconstruction, we aimed to investigate the longitudinal effects of the bill on access to autologous reconstruction along various sociodemographic cohorts., Methods: Retrospective review identified demographic, socioeconomic, and clinical data for patients undergoing mastectomy with immediate reconstruction at Weill Cornell Medicine and Columbia University Irving Medical Center from 2002 to 2019. Primary outcome was receiving implant or autologous-based reconstruction. Subgroup analysis was based on sociodemographic factors. Multivariate logistic regression identified predictors of autologous reconstruction. Interrupted time series modeling analyzed differences in reconstructive trends for subgroups before and after the 2011 implementation of the NYS law., Results: We included 3178 patients; 2418 (76.1%) and 760 (23.9%) patients underwent implant and autologous-based reconstruction, respectively. Multivariate analysis indicated that race, Hispanic status, and income were not predictors of autologous reconstruction. Interrupted time series showed that with each year leading up to 2011 implementation, patients were 19% less likely to receive autologous-based reconstruction. Following implementation, there was a 34% increase in the odds of receiving autologous-based reconstruction with each passing year. Following implementation, Asian American and Pacific Islander patients experienced a 55% greater increase in the rate of flap reconstruction than White patients. Following implementation, the highest-income quartile experienced a 26% greater increase in the rate of autologous-based reconstruction compared with the lowest-income quartile. After implementation, Hispanic patients experienced a 30% greater decrease in the rate of autologous-based reconstruction compared with non-Hispanic patients., Conclusions: Our data indicate the long-term efficacy of the NYS Breast Cancer Provider Discussion Law in increasing access to autologous-based reconstruction, especially for certain minority groups. These findings underscore the importance of this bill and encourage its adoption into other states., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)

Background: When patients with systemic sclerosis (SSc) and systemic lupus erythematosus (SLE) develop digital ischemia, conventional angiography (CA) is traditionally used to assess hand vasculature. Recently, Chang et al described an angiographic classification system for patients with SSc. Conventional angiography uses intravascular contrast agents that are nephrotoxic and vasoconstrictive. Owing to these limitations, this study assesses the use of contrast-enhanced magnetic resonance angiography (MRA) as an alternative to CA to evaluate hand vasculature in patients with digital ischemia., Methods: This retrospective case series reports on 38 contrast-enhanced MRAs of hand vasculature from 30 symptomatic patients with SSc (N = 21) or SLE (N = 9). The radial and ulnar arteries (RA, UA) and the superficial and deep palmar arches were evaluated at standard reference points both quantitatively and qualitatively for their diameter, patency, and Chang classification., Results: In SSc MRAs (n = 26), the UA was significantly smaller than the RA and was occluded in 46%. In SLE MRAs (n = 12), the UA and RA had no difference in diameter and the UA was occluded in 25%. In SSc, the most common Chang classification was type 2 (UA involvement) in 44%. In SLE, the most common Chang classification was type 4 (UA and RA involvement) in 45%, with 18% classified as type 2., Conclusions: Contrast-enhanced MRA used to assess hand vasculature in SSc patients with digital ischemia shows similar patterns of vascular involvement as previously demonstrated by CA. While vascular involvement in SSc predominantly involves the UA, the RA is also frequently involved in SLE.

Background: No meta-analysis has examined whether contralateral prophylactic mastectomy increases complication risk for unilateral breast cancer patients undergoing unilateral mastectomy., Methods: Fifteen studies on complications of unilateral mastectomy plus contralateral prophylactic mastectomy met inclusion criteria. Meta-analyses compared complications of (1) diseased versus contralateral breasts in unilateral plus contralateral prophylactic mastectomy patients and (2) patients undergoing unilateral plus contralateral prophylactic mastectomy versus unilateral alone when grouped by reconstructive method., Results: For all unilateral plus contralateral prophylactic mastectomy patients, the diseased breast was significantly more prone to complications versus the contralateral breast (relative risk, 1.24; p = 0.03). In studies that stratified by reconstructive method, the complication risk was significantly higher for unilateral plus contralateral prophylactic mastectomy versus unilateral mastectomy alone for patients with no reconstruction (relative risk, 2.03; p = 0.0003), prosthetic-based reconstruction (relative risk,1.42; p = 0.003), and autologous reconstruction (relative risk, 1.32; p = 0.005). The only prospective trial showed similar results, including for more severe complications. Smaller retrospective studies without stratification by reconstructive method showed similar complications for unilateral plus contralateral prophylactic mastectomy versus unilateral mastectomy alone (relative risk, 1.06; p = 0.70). These groups had similar incidences of complication-related delay in adjuvant therapy, as demonstrated by one study., Conclusions: After unilateral plus contralateral prophylactic mastectomy, diseased breasts are at higher risk for complications. Stronger evidence supports higher complication risk for unilateral plus contralateral prophylactic mastectomy than unilateral alone. More work is needed to determine the effect of complications on timing of adjuvant therapy., (Copyright © 2022 by the American Society of Plastic Surgeons.)

Background: Lack of female and ethnically underrepresented in medicine (UIM) surgeons remains concerning in academic plastic surgery. One barrier to inclusion may be unequal opportunity to publish research. This study evaluates the extent of this challenge for plastic surgery trainees and identifies potential solutions., Methods: Data were collected on academic plastic surgeons' research productivity during training. Bivariate analysis compared publication measures between genders and race/ethnicities at different training stages (pre-residency/residency/clinical fellowship). Multivariate analysis determined training experiences independently associated with increased research productivity., Results: Overall, women had fewer total publications than men during training (8.89 versus 12.46, P = 0.0394). Total publications were similar between genders before and during residency ( P > 0.05 for both) but lower for women during fellowship (1.32 versus 2.48, P = 0.0042). Women had a similar number of first-author publications during training (3.97 versus 5.24, P = 0.1030) but fewer middle-author publications (4.70 versus 6.81, P = 0.0405). UIM and non-UIM individuals had similar productivity at all training stages and authorship positions ( P > 0.05 for all). Research fellowship completion was associated with increased total, first-, and middle-author training publications ( P < 0.001 for all)., Conclusions: Less research productivity for female plastic surgery trainees may reflect a disparity in opportunity to publish. Fewer middle-author publications could indicate challenges with network-building in a predominately male field. Despite comparable research productivity during training relative to non- UIM individuals, UIM individuals remain underrepresented in academic plastic surgery. Creating research fellowships for targeting underrepresented groups could help overcome these challenges., (Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

Introduction: Acellular dermal matrix (ADM) is frequently used during prepectoral tissue expander-based breast reconstruction. However, there has been a paucity of literature describing the experience of prepectoral reconstruction without the accompanying use of ADM. We seek to highlight our institutional experience with immediate prepectoral tissue expander placement without the use of ADM in breast reconstruction., Methods: A retrospective, single-institution review of patient records was performed to identify all patients who underwent either skin sparing or nipple-sparing mastectomy with immediate tissue expander placement without the use of ADM. Demographics including age, body mass index, comorbidities, history of smoking or steroid use, perioperative radiation or chemotherapy, intraoperative details, and complication profiles during the tissue expander stage were retrospectively collected and analyzed. At the time of tissue expander placement, all mastectomy flaps were evaluated clinically and with indocyanine green laser angiography. Postoperative outcomes were tracked., Results: Between 2017 and 2020, 63 patients (for a total of 108 breasts) underwent either skin sparing (16%) or nipple-sparing mastectomy (84%) with immediate prepectoral tissue expander without ADM placement. Fourteen percent of breasts developed postoperative cellulitis, 19% of breasts developed skin compromise, and 5% required a postoperative revisional procedure that did not result in immediate expander explant. There was a 13% (n = 14 breasts) explant rate occurring at a mean time of 74 days. Of those breasts that developed skin compromise, 45% went on to require eventual explant. Patients in the study were followed for an average of 6.3 months., Conclusions: Immediate prepectoral breast reconstruction using tissue expanders without ADM offers a viable alternative to established reconstructive paradigms. The major complication rate for prepectoral reconstruction without the use of ADM (17%) was found to be comparable with our historical subpectoral tissue expander reconstruction with ADM use. Tissue expander explant rates were also comparable between the prepectoral without ADM (13%) and the subpectoral with ADM cohorts. These preliminary data suggest that immediate breast reconstruction with tissue expander placement without accompanying ADM is viable alternative in the breast reconstructive algorithm., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)

Abstract: Various recent developments, including legislation in 2014 banning healthcare discrimination against gender minorities, have contributed to expanding insurance coverage for gender-affirming care, which includes facial gender confirmation surgery (FGCS). Increasing evidence suggests FGCS improves quality-of-life outcomes, but literature evaluating FGCS patient demographics, surgical risk factors, procedures, and complications is limited. Therefore, the authors conducted a study of a national surgical database from 2005 to 2019 attempting to fill in these literature gaps. Statistics were used to assess temporal trends after 2014. A total of 203 FGCS cases were identified, with the earliest occurring in 2013. Case volume increased annually from 2015-2019. The average patient age was 34.0 years and racial demographics largely mirrored national estimates for the transgender/non-binary population. Obesity (20.7%) and hypertension (3.9%) were the only patient co-morbidities, although a relatively high proportion were underweight (5.4%). The majority of cases were outpatient procedures (66.5%) conducted by either plastic surgery (38.9%) or otolaryngology (61.1%). Comparing FGCSs by anatomic site, the proportion of tracheal procedures decreased between 2015-17 and 2018-19 (25.6% vs. 10.7%, P = 0.0002) whereas the proportion of brow/forehead reconstructions increased (32.6% versus 63.1%, P = 0.0005). These changes coincided with an increase in mean operative time (168.6 minutes versus 260.0, P = 0.0002). Complications were rare (3.9%), and the most common was surgical site infection (3.4%), a previously unreported outcome in the FGCS literature. Overall, FGCS patients are mostly young healthy individuals from diverse racial/ethnic backgrounds, and they have few surgical complications. The increasing volume and complexity of FGCSs may be a result of expanding insurance coverage for previously unaffordable procedures., Competing Interests: The authors report no conflicts of interest, (Copyright © 2021 by Mutaz B. Habal, MD.)

Abstract: An increasing number of plastic and reconstructive surgery (PRS) units have transitioned from divisions to departments in recent years. This study aimed to identify quantifiable differences that may reflect challenges and benefits associated with each type of unit. We conducted a cross-sectional analysis of publicly-available data on characteristics of academic medical institutions housing PRS units, faculty size of surgical units within these institutions, and academic environments of PRS units themselves. Univariate analysis compared PRS divisions versus departments. Matched-paired testing compared PRS units versus other intra-institutional surgical departments. Compared to PRS divisions (n = 64), departments (n = 22) are at institutions with more surgical departments overall (P = 0.0071), particularly departments that are traditionally divisions within the department of surgery (ie urology). Compared to PRS divisions, PRS departments have faculty size that more closely resembles other intra-institutional surgical departments, especially for full-time surgical faculty and faculty in areas of clinical overlap with other departments like hand surgery. Plastic and reconstructive surgery departments differ from PRS divisions by certain academic measures, including offering more clinical fellowships (P = 0.005), running more basic science laboratories (P = 0.033), supporting more nonclinical research faculty (P = 0.0417), and training residents who produce more publications during residency (P = 0.002). Institutions with PRS divisions may be less favorable environments for surgical divisions to become departments, but other recently-transitioned divisions could provide blueprints for PRS to follow suit. Bolstering full-time surgical faculty numbers and faculty in areas of clinical overlap could be useful for PRS divisions seeking departmental status. Transitioning to department may yield objective academic benefits for PRS units., Competing Interests: The authors report no conflicts of interest., (Copyright © 2021 by Mutaz B. Habal, MD.)

Objective: In previous plastic surgery residency match cycles, in-person activities at other institutions, such as away rotations, have facilitated matches outside of an applicant's home program or region. The COVID-19 pandemic, however, limited these in-person opportunities. Therefore, we hypothesized that applicants of the 2021 cycle would be more likely to match into programs with which they have existing geographic connections when compared to previous years., Design: Residency websites and social media accounts were searched for resident names and educational information for those matching in 2021 and 2015 to 2020. Outcomes included proportion of applicants matching at the program affiliated with their medical school ("home program"), or matching in the same state or United States Census Map region as their medical school or undergraduate institution. Subgroup analyses were stratified by program region, incoming resident class size, and Doximity residency reputation ranking., Setting: Columbia University (New York)., Participants: For the 2015 to 2020 residency cycles, 963 residents were identified from 78 (95.1%) programs. For 2021, 159 incoming interns were identified from 70 (82.3%) programs., Results: 2021 applicants matched into their home program at higher rates than 2015-2020 applicants (36.0% vs. 24.1%, p  = 0.019). This trend was similar regardless of program region or size. This increase was significant for programs ranked outside of the top 30 (41.5% vs. 26.4%, p = 0.032), but not for the top 30 programs (32.1% vs. 22.3%, p = 0.128). Excluding those who matched at their home program, 2015 to 2020 and 2021 applicants matched in the same state or region of their medical school or undergraduate institution at similar rates (p > 0.05 for all)., Conclusions: During the COVID-19 pandemic, plastic surgery residency programs matched more applicants from affiliated medical schools than in previous years. This may result from lack of in-person opportunities for applicants at other programs. Alternative relationship-building opportunities may facilitate broader geographic connections in the 2022 cycle., (Copyright © 2021 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.)

Stiffness after total knee arthroplasty (TKA) remains a clinical challenge for health care professionals. Historically, arthroscopic arthrolysis is a treatment modality that has been reserved for patients that have failed other conservative modalities, including manipulation under anesthesia. However, a systematic review of the literature evaluating the clinical efficacy and complications of arthroscopic arthrolysis for stiffness after TKA has not been performed. A systematic review of medical databases (PubMed, EMBASE, Cochrane Library) was undertaken for articles published from January 1980 to October 2018. A descriptive and critical analysis of the results was performed. From 1,326 studies, 7 studies met the inclusion criteria for this study. A total of 160 patients who underwent arthroscopic arthrolysis for arthrofibrosis following TKA were included for analysis. The quality of the evidence for the included studies ranged between moderate and high. Overall, patients had significant increased range of motion and flexion by 32.5 and 26.7 degrees, respectively following arthroscopic arthrolysis. Functional outcome scores also significantly improved for patients who underwent arthroscopic arthrolysis after TKA. Arthroscopic arthrolysis is an efficacious modality for treatment of stiffness following TKA. The greatest benefit is seen among patients that present with significant loss of flexion. Arthroscopic arthrolysis should be reserved for patients that have previously failed more conservative modalities., Competing Interests: None declared., (Thieme. All rights reserved.)

Purpose: To establish the incidence of revision carpal tunnel surgery within a 1-year postoperative period using a national administrative database. This information has been unknown until this point because of the absence of laterality-specific coding with the International Classification of Diseases, Ninth Edition and earlier coding systems., Methods: Data were collected from the Humana insurance database using PearlDiver patient records from 2015 to 2017. Subjects were identified using Current Procedural Terminology and International Classification of Diseases procedure codes related to carpal tunnel diagnosis and release. Codes were used to identify patients who underwent carpal tunnel release (CTR) and had revision CTR within a 1-year follow-up period. Patient demographic characteristics, including age, sex, medical comorbidities, and smoking status, were collected. In addition, multivariable analysis of the risk of a revision procedure within 1 postoperative year was performed to determine independent risk factors, including the surgical approach, associated with revision CTR., Results: Among 4,549 patients who underwent a primary CTR during the study period, 207 patients (4.8%) underwent a revision CTR within 1 year. The average time from the primary CTR to the revision CTR was 135 days (standard deviation, 99.1 days; range, 21-365 days). Primary endoscopic CTR was associated with an increased rate of revision CTR (odds ratio, 1.3; 95% confidence interval, 1.2-1.6). Patient factors associated with a higher likelihood of requiring revision CTR included diabetes mellitus, tobacco use, psychiatric condition, cervical disease, and history of cubital tunnel release., Conclusions: This study identified a rate of revision CTR of 4.8% within the first postoperative year. Both the surgical technique and patient-specific risk factors influence the likelihood of requiring revision surgery. Notably, an endoscopic approach is associated with a higher risk of revision surgery., Type of Study/level of Evidence: Prognostic II., (Copyright © 2021 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.)