The surgical treatment of proximal humerus fractures 2010-2019: United States national case volume and incidence trends.

Background: Proximal humerus fractures are the third most common fracture type for patients between the ages of 65 and 89 and occur more frequently in women than men. Given the variety of surgical treatments for proximal humerus fractures, the aim of this study was to (1) report United States national volume and incidence estimates for surgical management of proximal humerus fractures to better understand the changing practice over the past decade and (2) to analyze differences in volume and incidence among age groups, sex, and geographic region. Methods: Using IBM Marketscan national database, all patients that underwent open reduction internal fixation (ORIF), hemiarthroplasty, or reverse total shoulder arthroplasty (RTSA) between 2010 and 2019 were identified with Current Procedural Terminology codes. The dataset was further stratified to identify patients treated for proximal humerus fractures. IBM Marketscan provided discharge weights that were used to determine estimated national annual volumes of each procedure in IBM SPSS Statistics software (IBM Corp., Armonk, NY, USA). Volume and incidence were adjusted per 1,000,000 persons and calculated for subgroups according to age group, sex, and geographical region. The United States Census Bureau annual population data was used for all incidence calculations. Results: Over the past decade, the total volume and incidence of surgically treated proximal humerus fractures increased by 13% and 5%, respectively. Although overall incidence decreased, ORIF remained the most common surgical treatment. The greatest decrease in volume and incidence of ORIF occurred in patients ≥75. The incidence of ORIF treatment increased in the South and West while it decreased in the Northeast and Midwest. Total volume and incidence of HA decreased between 2010 and 2019 and this trend remained among all subgroups. Total volume and incidence of RTSA increased by over 300%. The incidence of males and females receiving RTSA increased by 266% and 320%, respectively. Volume and incidence of RTSA increased across all age groups. Volume and incidence of RTSA increased in the Midwest, South, and Western regions while it remained unchanged in the Northeast. Conclusion: Surgical management trends of proximal humerus fractures have changed greatly over the past decade. ORIF remains the most common surgical treatment for proximal humerus fractures. HA has fallen out of favor while RTSA has seen significant increases in usage across sex, age groups, and geographic regions. These trends represent a change in practice for treating proximal humerus fractures by considering all patient and fracture characteristics when opting for surgical management.

Methylprednisolone taper is an effective addition to multimodal pain regimens after total shoulder arthroplasty: results of a randomized controlled trial: 2022 Neer Award winner.

BACKGROUND: Perioperative corticosteroids have shown potential as nonopioid analgesic adjuncts for various orthopedic pathologies, but there is a lack of research on their use in the postoperative setting after total shoulder arthroplasty (TSA). The purpose of this study was to assess the effect of a methylprednisolone taper on a multimodal pain regimen after TSA. METHODS: This study was a randomized controlled trial (clinicaltrials.gov NCT03661645) of opioid-naive patients undergoing TSA. Patients were randomly assigned to receive intraoperative dexamethasone only (control group) or intraoperative dexamethasone followed by a 6-day oral methylprednisolone (Medrol) taper course (treatment group). All patients received the same standardized perioperative pain management protocol. Standardized pain journal entries were used to record visual analog pain scores (VAS-pain), VAS-nausea scores, and quantity of opioid tablet consumption during the first 7 postoperative days (POD). Patients were followed for at least one year postoperatively for clinical evaluation, collection of patient-reported outcomes, and observation of complications. RESULTS: A total of 67 patients were enrolled in the study; 32 in the control group and 35 in the treatment group. The groups had similar demographics and comorbidities. The treatment group demonstrated a reduction in mean VAS pain scores over the first 7 POD. Between POD 1 and POD 7, patients in the control group consumed an average of 17.6 oxycodone tablets while those in the treatment group consumed an average of 5.5 tablets. This equated to oral morphine equivalents of 132.1 and 41.1 for the control and treatment groups, respectively. There were fewer opioid-related side effects during the first postoperative week in the treatment group. The treatment group reported improved VAS pain scores at 2-week, 6-week, and 12-week postoperatively. There were no differences in Europe Quality of Life, shoulder subjective value (SSV), at any time point between groups, although American Shoulder and Elbow Surgeons questionnaire scores showed a slight improvement at 6-weeks in the treatment group. At mean follow-up, (control group: 23.4 months; treatment group:19.4 months), there was 1 infection in the control group and 1 postoperative cubital tunnel syndrome in the treatment group. No other complications were reported. CONCLUSIONS: A methylprednisolone taper course shows promise in reducing acute pain and opioid consumption as part of a multimodal regimen following TSA. As a result of this study, we have included this 6-day methylprednisolone taper course in our multimodal regimen for all primary shoulder arthroplasties. We hope this trial serves as a foundation for future studies on the use of low-dose oral corticosteroids and other nonnarcotic modalities to control pain after shoulder surgeries.

Should All Patients Receive Extended Oral Antibiotic Prophylaxis? Defining Its Role in Patients Undergoing Primary and Aseptic Revision Total Joint Arthroplasty.

BACKGROUND: Prior studies have demonstrated reduced periprosthetic joint infection (PJI) rates following extended oral antibiotics (EOAs) for high-risk patients undergoing primary total joint arthroplasty (TJA). This study compared 3-month PJI rates in all patients undergoing primary or aseptic revision TJA with or without EOA prophylaxis. METHODS: In total, 2,982 consecutive primary (n = 2,677) and aseptic revision (n = 305) TJAs were performed by a single, fellowship-trained arthroplasty surgeon from 2016 to 2022 were retrospectively reviewed. Beginning January 2020, all patients received 7 days of 300 mg oral cefdinir twice daily immediately postoperatively. Rates of PJI at 3 months were compared between patients who received or did not receive EOA. RESULTS: Rates of PJI at 3 months in patients undergoing primary and aseptic revision TJA were significantly lower in those receiving EOA prophylaxis compared to those who did not (0.41 versus 1.13%, respectively; P = .02). After primary TJA, lower PJI rates were observed with EOA prophylaxis utilization (0.23 versus 0.74%, P = .04; odds ratio [OR] 3.85). Following aseptic revision TJA, PJI rates trended toward a significant decrease with the EOA compared to without (1.88 versus 4.83%, respectively; P = .16; OR 2.71). CONCLUSIONS: All patients undergoing primary or aseptic revision TJA who received EOA prophylaxis were 3.85 and 2.71 times less likely, respectively, to develop PJI at 3 months compared to those without EOA. Future studies are needed to determine if these results are maintained at postoperative time periods beyond 3 months following primary TJA. LEVEL OF EVIDENCE: III, Retrospective review.

Chronic Anticoagulation is Associated With Increased Risk for Postoperative Complications Following Aseptic Revision Total Hip Arthroplasty.

BACKGROUND: With an aging global population, the incidence of revision total hip arthroplasty (rTHA) is expected to increase markedly. While patients undergoing primary total hip arthroplasty who require chronic anticoagulation (AC) have been associated with increased postoperative complications, less is known about the impact of chronic AC status on postoperative complications in the rTHA setting. This study sought to compare complication rates following aseptic rTHA between patients who were on chronic AC and those who were not. METHODS: A large national database was utilized to retrospectively identify 9,421 patients who underwent aseptic rTHA between 2014 and 2019. Patients were divided into 2 cohorts: 1,790 patients (19.0%) were in the chronic AC cohort (ie, having an AC prescription filled within 6 months prior to and following rTHA), and 7,631 patients (81.0%) were not on chronic AC. Postoperative complications at 90-days and 2-years were compared between cohorts utilizing univariate and multivariate analyses, controlling for sex, age, and comorbidities. RESULTS: At 90-days, chronic AC patients had increased odds of prosthetic joint infections (PJIs) (odds ratio [OR] 3.2, P < .001), surgical site infections (OR 3.6, P < .001), and mechanical prosthetic complications (OR 3.5, P < .001), which included any aseptic loosening, implant dislocation, or broken prosthetic. At 2-years, chronic AC patients had increased odds of PJI (OR 3.3, P < .001) as well as mechanical prosthetic complications (OR 3.2, P < .001). Chronic AC patients were also at increased risk for reoperation within 2 years after initial aseptic rTHA (OR 1.9, P < .001). CONCLUSIONS: Patients on chronic AC have significantly higher odds of 90-day and 2-year complications after aseptic rTHA. This includes increased odds of PJI, surgical site infection, and mechanical prosthetic complications. Patients receiving chronic AC who undergo rTHA should be counseled on the risk-benefit ratio of their chronic AC status in a multidisciplinary setting to optimize their postoperative outcomes.

Upper Extremity Fractures in the Emergency Department: A Database Analysis of National Trends in the United States.

BACKGROUND: Upper extremity (UE) fractures are a common reason for emergency department (ED) visits, but recent data on their epidemiology are lacking. This study aimed to describe the incidence, demographics, patient characteristics, and associated health care factors of UE fractures, hypothesizing that they would remain prevalent in the ED setting. METHODS: Using the Nationwide ED Sample database, patients presenting to the ED with UE fractures in 2016 were identified, and population estimates were used to calculate incidence rates. Data on insurance status, trauma designation, cost, and teaching status were analyzed. RESULTS: The study identified 2 118 568 patients with UE fractures, representing 1.5% of all ED visits in 2016. Men accounted for 54.2% of UE fractures, with phalangeal fractures being most common. Distal radius and/or ulna fractures were most common in women (30.4%). The greatest proportion of UE fractures (23.2%) occurred in patients aged 5 to 14 years (1195.5 per 100 000). Nontrauma centers were the most common treating institutions (50.4%), followed by level I (19.5%), II (15.3%), and III (12.8%) centers. The greatest proportion of fractures (38.3%) occurred in the southern United States. Emergency department cost of treatment was almost 2-fold in patients with open UE fractures compared with closed. CONCLUSION: This study provides important epidemiological information on UE fractures in 2016. The incidence rate of UE fractures in the ED has remained high, with most occurring in the distal radius, phalanges, and clavicle. In addition, UE fractures were most common in younger patients, men, and those in the southern United States during the summer. These findings can be useful for health care providers and policymakers when evaluating and treating patients with UE fractures.

A Changing Landscape in the Surgical Management of Wrist Arthritis: An Analysis of National Trends From 2009 to 2019.

PURPOSE: The purpose of this study was to analyze the trends in the annual volume and incidence of proximal row carpectomy (PRC), four-corner fusion (4CF), total wrist arthrodesis (TWF), and total wrist arthroplasty (TWA) from 2009 to 2019 in the United States. METHODS: The IBM Watson Health MarketScan databases were queried to identify annual case volumes for PRC, 4CF, TWF, and TWA from 2009 to 2019. The annual incidence of these procedures was then calculated based on the population estimates from the US Census Bureau. Trends in annual volume and incidence over the study period were evaluated using regression line analysis. Further subgroup analysis was conducted based on age and region. RESULTS: From 2009 to 2019, the total case volumes for the four procedures increased by 3.4%, but the incidence decreased by 2.8%. However, PRC case volume and incidence trends significantly increased (38.2% and 29.7%, respectively), whereas 4CF remained constant. Conversely, the case volume and incidence of TWA significantly decreased (-52.2% and -54.5%, respectively), whereas TWF remained constant. When stratified by age, all four procedures decreased in the <45-year-old cohort (combined -35.1%) significantly for 4CF, TWF, and TWA. TWA decreased significantly in the <45-year-old and 45- to 65-year-old cohorts (53.6% and 63.2%, respectively). For age >65 years, the total case incidence increased by 98.9%, including a significant positive trend in TWF (175%). CONCLUSIONS: Surgical management of wrist arthritis remains a controversial issue. However, PRC has gained recent support in the literature, and our results reflect this shift, even for the <45-year-old cohort. Furthermore, TWA declined, despite reports of positive early outcomes for fourth-generation implants. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic II.

Scapular Dyskinesia: How to Differentiate Between Etiologies.

It is important to discuss the importance of synchronous balance between periscapular muscles for scapulothoracic motion and resultant scapulohumeral rhythm. Abnormalities in this balance can lead to scapular dyskinesia and winging, affecting shoulder motion and leading to impingement. Strategies exist to diagnose and differentiate between pathologies such as muscle paralysis (eg, trapezius or serratus anterior) or overactivity (eg, pectoralis minor). The physician should be aware of the role of diagnostic imaging, as well as the unique considerations for patients with Ehlers-Danlos syndrome. Overall, a comprehensive physical examination to accurately diagnose and treat scapular pathologies is particularly important.

The Scapula: The Greater Masquerader of Shoulder Pathologies.

A comprehensive review of scapular pathologies and their effect on shoulder function is necessary to determine the best treatment options. The coordinated motion between the scapulothoracic and glenohumeral joints is essential for shoulder motion and depends on the balanced activity of the periscapular muscles. Disruption in these muscles can cause abnormal scapular motion and compensatory glenohumeral movements, leading to misdiagnosis or delayed diagnosis. Scapular pathologies can arise from muscle overactivity or underactivity/paralysis, resulting in a range of scapulothoracic abnormal motion (STAM). STAM can lead to various glenohumeral pathologies, including instability, impingement, or nerve compression. It is important to highlight the critical periscapular muscles involved in scapulohumeral rhythm (such as the upper, middle, and lower trapezius; rhomboid major and minor; serratus anterior; levator scapulae; and pectoralis minor). A discussion of the different etiologies of STAM should include examples of muscle dysfunction, such as overactivity of the pectoralis minor, underactivity or paralysis of the serratus anterior or trapezius muscles, and dyskinesis resulting from compensatory mechanisms in patients with recurrent glenohumeral instability due to Ehlers-Danlos syndrome. The evaluation and workup of STAM has shown that patients typically present with radiating shoulder pain, especially in the posterior aspect of the shoulder and scapula, and limitations in active shoulder overhead motion associated with glenohumeral pain, instability, or rotator cuff pathologies.

Modern Treatment of Neurogenic Thoracic Outlet Syndrome: Pathoanatomy, Diagnosis, and Arthroscopic Surgical Technique.

Compressive pathology in the supraclavicular and infraclavicular fossae is broadly termed "thoracic outlet syndrome," with the large majority being neurogenic in nature. These are challenging conditions for patients and physicians and require robust knowledge of thoracic outlet anatomy and scapulothoracic kinematics to elucidate neurogenic versus vascular disorders. The combination of repetitive overhead activity and scapular dyskinesia leads to contracture of the scalene muscles, subclavius, and pectoralis minor, creating a chronically distalized and protracted scapular posture. This decreases the volume of the scalene triangle, costoclavicular space, and retropectoralis minor space, with resultant compression of the brachial plexus causing neurogenic thoracic outlet syndrome. This pathologic cascade leading to neurogenic thoracic outlet syndrome is termed pectoralis minor syndrome when primary symptoms localize to the infraclavicular area. Making the correct diagnosis is challenging and requires the combination of complete history, physical examination, advanced imaging, and ultrasound-guided injections. Most patients improve with nonsurgical treatment incorporating pectoralis minor stretching and periscapular and postural retraining. Surgical decompression of the thoracic outlet is reserved for compliant patients who fail nonsurgical management and respond favorably to targeted injections. In addition to prior exclusively open procedures with supraclavicular, infraclavicular, and/or transaxillary approaches, new minimally invasive and targeted endoscopic techniques have been developed over the past decade. They involve the endoscopic release of the pectoralis minor tendon, with additional suprascapular nerve release, brachial plexus neurolysis, and subclavius and interscalene release depending on the preoperative work-up.

Arthroscopic Pectoralis Minor Release After Reverse Shoulder Arthroplasty: A Novel Consideration for Postarthroplasty Pain.

CASE: A 74-year-old male patient presenting with chronic radiating shoulder pain, paresthesias, and weakness had previously undergone reverse shoulder arthroplasty and anterior cervical discectomy and fusion for an irreparable cuff tear and cervical radiculopathy, respectively. After being diagnosed with neurogenic thoracic outlet syndrome and undergoing physiotherapy, the patient's recalcitrant condition was surgically managed with arthroscopic pectoralis minor tenotomy, suprascapular nerve release, and brachial plexus neurolysis. CONCLUSION: This ultimately led to complete pain relief and improved function. By sharing this case, we aim to shed light on this overlooked pathology and help prevent unnecessary procedures for others suffering from similar conditions.

Variation in scapulohumeral rhythm on dynamic radiography in pathologic shoulders: a novel diagnostic tool.

HYPOTHESIS: The purpose of this study was to analyze the SHR of patients diagnosed with small (SRCTs) and massive rotator cuff tears (MRCTs), adhesive capsulitis (AC), and glenohumeral osteoarthritis (GH-OA) and compare their measurements to those of patient controls with healthy shoulders using DDR. We hypothesize that various diagnoses will vary with regards to SHR. METHODS: The sequences of pulsed radiographs collated in DDR to create a moving image were prospectively analyzed during humeral abduction in normal controls and in 4 distinct shoulder pathology groups: SRCT, MRCT, AC, and GH-OA. GH and ST joint angles were measured at 0°-30°, 30°-60°, 60°-90°, and maximal coronal plane humeral abduction. SHR was defined as the ratio of the change in humeral abduction over the change in scapula upward rotation during humeral abduction and was calculated within the above angle intervals. RESULTS: A total of 121 shoulders were analyzed. Forty normal controls were compared to 13 SRCTs, 29 MRCTs, 16 AC, and 23 GH-OA. SHR during humeral abduction differed significantly in patients with MRCT (1.91 ± 0.72), AC (1.55 ± 0.37), and GH-OA (2.31 ± 1.01) compared to controls (3.39 ± 0.79). When analyzed across 30° intervals of abduction, there was a significantly lower SHR found at 0°-30°, 30°-60°, and 60°-90° in MRCT, AC, and GH-OA across each motion range compared to controls. Control patients had an arc of abduction of 103° ± 32°, which was significantly larger than all other pathologies (MRCT: 76° ± 23°, SRCT: 81° ± 21°, AC: 65° ± 27°, GH-OA: 71° ± 35°) and an average scapular abduction of 33° ± 14°, which was significantly less than patients with an MRCT (46° ± 10°) and AC (65° ± 27°). CONCLUSION: SHR remained significantly lower throughout shoulder abduction in MRCT (43.65%), AC (-54.29%), and GH-OA (32.01%) compared to controls. When isolating for humeral and scapular motion, all 4 pathologies had decreased GH abduction, whereas AC and MRCT had an increased scapular compensatory motion compared to controls. Quantifying kinematic patterns like SHR using DDR can be implemented as a novel, safe, and cost-effective method to diagnose shoulder pathology and to monitor response to treatment.

Dupuytren Disease: Surgical Tips, Optimizing Outcomes, and Cost Considerations.

Dupuytren disease is associated with benign fibroproliferative changes to the palmar fascia of the hand sometimes resulting in progressive contractures of the fingers. The earliest descriptions of these contractures date back to the 18th century. Much has been learned about the condition since the clawing condition was first described; however, optimal treatment still poses significant challenges to modern-day surgeons. It is important to examine the treatment options for Dupuytren disease and highlight the current evidence, techniques, and cost considerations of open fasciectomy, needle aponeurotomy, and recently described minimally invasive treatment.

Novel Diagnostic and Treatment Techniques for Neurogenic Thoracic Outlet Syndrome.

Neurogenic thoracic outlet syndrome is a challenging condition to diagnose and treat, often precipitated by the triad of repetitive overhead activity, pectoralis minor contracture, and scapular dyskinesia. The resultant protracted scapular posture creates gradual repetitive traction injury of the suprascapular nerve via tethering at the suprascapular notch and decreases the volume of the brachial plexus cords and axillary vessels in the retropectoralis minor space. A stepwise and exhaustive diagnostic protocol is essential to exclude alternate pathologies and confirm the diagnosis of this dynamic pathologic process. Ultrasound-guided injections of local anesthetic or botulinum toxin are a key factor in confirming the diagnosis and prognosticating potential response from surgical release. In patients who fail over 6 months of supervised physical therapy aimed at correcting scapular posture and stretching of the pectoralis minor, arthroscopic surgical release is indicated. We present our diagnostic algorithm and technique for arthroscopic suprascapular neurolysis, pectoralis minor release, brachial plexus neurolysis, and infraclavicular thoracic outlet decompression.

Outcomes of Functioning Free Gracilis Muscle Transplantation to Restore Elbow Flexion in Late Brachial Plexus Birth Injury.

BACKGROUND: Restoring elbow function is challenging after late presenting brachial plexus birth injury (BPBI). Free functioning muscle transplantation (FFMT) using the gracilis muscle is a reliable procedure to restore elbow flexion in patients with impaired function after spontaneous recovery or failed surgical reconstruction. METHODS: A retrospective review was performed on BPBI patients more than 2 years of age who received a FFMT between January 1993 and January 2018, with the aim of improving elbow flexion as the primary or secondary functional goal. Patients with preoperative elbow flexion Medical Research Council (MRC) grades less than 3 with more than or equal to 18 months of follow-up duration were included in the analysis. Patient demographic information and pre/postoperative clinical parameters including elbow flexion MRC scale, passive elbow range of motion, and complications were recorded. Surgical data including donor nerve choice, site of the FFMT tendon attachment, and necessity of concomitant procedures or reoperation were also analyzed. RESULTS: Fifty-six FFMTs were performed for the primary (29 patients) or secondary (26 patients) objective of restoring elbow flexion. The mean age at the time of the procedure was 9.6 years (standard deviation [SD] = 6.29, R = 3-35). Mean follow-up was 7.9 years (SD = 5.2). Elbow flexion improved from a median MRC grade 2 to 4 after a FFMT (p < 0.05). Patients who had a FFMT to restore two functions had 86% lower elbow flexion MRC grades than those who had a FFMT to restore flexion only (p < 0.05). Patients less than 12 years old at the time of surgery had more complications, reoperations, and rates of a flexion contracture more than or equal to 30 degrees than those aged more than 12 years (p < 0.05). CONCLUSION: FFMT is a reliable option for upper extremity reanimation. Patients aged less than 12 years old at the time of FFMT had significantly more complications, reoperations, and rates of postoperative elbow flexion contracture more than or equal to 30 degrees, but equivalent elbow flexion MRC grades. LEVEL OF EVIDENCE: III.

Medicaid payer status is associated with increased 90-day morbidity and resource utilization following primary shoulder arthroplasty: a propensity score-matched analysis.

BACKGROUND: Medicaid payer status has been shown to affect risk-adjusted patient outcomes and health care utilization across multiple medical specialties and orthopedic procedures. However, there is a paucity of data regarding the impact of Medicaid payer status on 90-day morbidity and resource utilization following primary shoulder arthroplasty (reverse total shoulder arthroplasty [rTSA], anatomic total shoulder arthroplasty [aTSA], and hemiarthroplasty [HA]). The purpose of this study was to examine 90-day readmission and reoperation rates, hospital length of stay (LOS), and direct cost following primary shoulder arthroplasty in the Medicaid population. METHODS: The National Readmission Database was queried for all patients undergoing primary aTSA, rTSA, and HA from 2011 to 2016. Medicaid or non-Medicaid payer status was determined. Patient demographic characteristics and comorbidities, along with 90-day readmission, 90-day reoperation, LOS, and inflation-adjusted cost, were queried. Propensity score matching was used to control for baseline differences in cohorts that could be acting as confounders in the exposure-outcome relationship. This was achieved with 1-to-1 propensity score matching between Medicaid and non-Medicaid patients. Odds ratios (ORs) and 95% confidence intervals (CIs) for 90-day readmission and reoperation rates were calculated, and a comparison of LOS and cost was performed between the propensity score-matched cohorts. RESULTS: A total of 4667 Medicaid and 161,147 non-Medicaid patients were identified from the 2011-2016 National Readmission Databases. Propensity score analysis was performed, and 4637 Medicaid patients were matched to 4637 non-Medicaid patients; each group comprised 1504 rTSAs (32.4%), 1934 aTSAs (41.7%), and 1199 HAs (25.9%). Patients with Medicaid payer status yielded significant increases in the 90-day all-cause readmission rate of 11.6% vs. 9.3% (P < .001; OR, 1.28 [95% CI, 1.12-1.46]), 90-day shoulder-related readmission rate of 3.3% vs. 2.3% (P = .004; OR, 1.44 [95% CI, 1.12-1.85]), and 90-day reoperation rate of 2.0% vs. 1.3% (P = .008; OR, 1.54 [95% CI, 1.12-1.94]). Furthermore, there was an increased risk of an extended LOS (ie, LOS > 2 days) (28.4% vs. 25.7%; P = .004; OR, 1.14 [95% CI, 1.04-1.25]) along with increased direct cost (median, $17,612 vs. $16,775; P < .001). DISCUSSION: This study demonstrates that Medicaid payer status is independently associated with increased 90-day readmission and reoperation rates, LOS, and direct cost following primary shoulder arthroplasty. Providers may have a disincentive to treat patient populations who require increased resource utilization following surgery. Risk adjustment models accounting for Medicaid payer status will be necessary to ensure good access to care for this patient population by avoiding penalties for physicians and hospital systems.

The Rise of Total Ankle Arthroplasty Use: A Database Analysis Describing Case Volumes and Incidence Trends in the United States Between 2009 and 2019.

BACKGROUND: Ankle arthrodesis has been the mainstay treatment for end-stage ankle arthritis. The popularity of total ankle arthroplasty (TAA) has been on the rise due to improved implant design and postoperative outcomes. The purpose of this study was to describe the basic epidemiology and trends of annual procedure volumes and incidence in the general American population as well as in different population subgroups from 2009 to 2019. We hypothesize that the incidence of TAA has significantly risen while the median length of hospital stay has decreased nationwide. METHODS: The IBM MarketScan database was queried for patients who underwent TAA from January 2009 to December 2019 based on Current Procedural Terminology coding. Population estimates from the US Census Bureau were used to calculate the annual incidence of TAA. Procedural volume and incidence were calculated for annual sums, gender, age subgroups, inpatient and outpatient TAA, as well as in four statistical geographic regions in the United States. Median length of hospital stay was calculated and trended annually for inpatient TAA. RESULTS: A total of 41,060 primary TAAs were identified in the database from 2009 to 2019, in which 52.5% were performed in males. Annual volumes increased by 136.1%, from 2180 to 5147 procedures nationwide. Incidence reported per 100 000 population increased by 120.8%. Both inpatient and outpatient procedures have increased, by 242.5% and 86.6%, respectively. Median length of hospital stay decreased from 3 days in 2009 to 1 day in 2019 and did not differ between genders. Growth in incidence was demonstrated in males and females above the age of 54 years with the largest growth in annual incidence found between 65 and 74 years. Incidence rose in the South and West of the United States by 111.8% and 136.5%, respectively. CONCLUSION: We found that annual volumes and incidence rates of primary TAA has increased between 2009 and 2019. Although both inpatient and outpatient surgery have become more frequent, inpatient volumes and incidence have increased almost 3 times more than those of outpatient surgery. Length of hospital stay decreased over the study years. When adjusted for the same study period, the cumulative annual growth rates of TAA were found to be 2 times greater than total knee arthroplasty and 3.6 times greater than total hip arthroplasty. LEVEL OF EVIDENCE: Level III, retrospective database review.

Pectoralis minor syndrome - review of pathoanatomy, diagnosis, and management of the primary cause of neurogenic thoracic outlet syndrome.

Thoracic outlet syndrome is an umbrella term for compressive pathologies in the supraclavicular and infraclavicular fossae, with the vast majority being neurogenic in nature. These compressive neuropathies, such as pectoralis minor syndrome, can be challenging problems for both patients and physicians. Robust understanding of thoracic outlet anatomy and scapulothoracic biomechanics are necessary to distinguish neurogenic vs. vascular disorders and properly diagnose affected patients. Repetitive overhead activity, particularly when combined with scapular dyskinesia, leads to pectoralis minor shortening, decreased volume of the retropectoralis minor space, and subsequent brachial plexus compression causing neurogenic thoracic outlet syndrome. Combining a thorough history, physical examination, and diagnostic modalities including ultrasound-guided injections are necessary to arrive at the correct diagnosis. Rigorous attention must be paid to rule out alternate etiologies such as peripheral neuropathies, vascular disorders, cervical radiculopathy, and space-occupying lesions. Initial nonoperative treatment with pectoralis minor stretching, as well as periscapular and postural retraining, is successful in the majority of patients. For patients that fail nonoperative management, surgical release of the pectoralis minor may be performed through a variety of approaches. Both open and arthroscopic pectoralis minor release may be performed safely with effective resolution of neurogenic symptoms. When further indicated by the preoperative workup, this can be combined with suprascapular nerve release and brachial plexus neurolysis for complete infraclavicular thoracic outlet decompression.