Pediatric thrower's elbow: maturation-dependent MRI findings in symptomatic baseball players.

BACKGROUND: Elbow pain is common among youth baseball players and elbow MRI is increasingly utilized to complement the clinical assessment. OBJECTIVE: To characterize, according to skeletal maturity, findings on elbow MRI from symptomatic youth baseball players. MATERIALS AND METHODS: This IRB-approved, HIPAA-compliant retrospective study included pediatric (<18 years of age) baseball players with elbow pain who underwent MRI examinations between 2010 and 2021. Two radiologists, blinded to the outcome, independently reviewed examinations to categorize skeletal maturity and to identify osseous and soft tissue findings with consensus used to resolve discrepancies. Findings were compared between skeletally immature and mature patients and logistic regression models identified predictors of surgery. RESULTS: This study included 130 children (115 boys, 15 girls): 85 skeletally immature and 45 mature (12.8±2.3 and 16.2±1.0 years, respectively, p<0.01). Kappa coefficient for interobserver agreement on MRI findings ranged from 0.64 to 0.96. Skeletally immature children, when compared to mature children, were more likely to have elbow effusion (27%, 23/85 vs 9%, 4/45; p=0.03), medial epicondyle marrow edema (53%, 45/85 vs 16%, 7/45; p<0.01), avulsion fracture (19%, 16/85 vs 2%, 1/45; p=0.02), and juvenile osteochondritis dissecans (OCD, 22%, 19/85 vs 7%, 3/45; p=0.04), whereas skeletally mature children were more likely to have sublime tubercle marrow edema (49%, 22/45 vs 11%, 9/85; p<0.01) and triceps tendinosis (40%, 18/45 vs 20%, 17/85; p=0.03). Intra-articular body (OR=4.2, 95% CI 1.5-47.8, p=0.02) and osteochondritis dissecans (OR=3.7, 95% CI 1.1-11.9, p=0.03) were independent predictors for surgery. CONCLUSION: Differential patterns of elbow MRI findings were observed among symptomatic pediatric baseball players based on regional skeletal maturity. Intra-articular body and osteochondritis dissecans were independent predictors of surgery.

Radiographic Features of the Metacarpal in Blauth Type III Thumb Hypoplasia.

PURPOSE: The purpose of this study was to investigate whether radiographs can be used to aid in the determination of Blauth IIIA and IIIB thumbs. METHODS: Six pediatric hand surgeons were asked to evaluate the radiographs of 77 thumbs and classify the thumb as IIIA or IIIB and indicate which morphologic features influenced their decision. Quantitative measurements and ratios of radiographs were obtained and compared between IIIA and IIIB thumbs. RESULTS: The radiographic features selected for type IIIA thumbs include near-normal length and near-normal width and for type IIIB thumbs, abnormally short, tapered proximal end, and round proximal end. The six surveyed surgeons reached consensus in 82% (63/77) of thumbs, and this matched the enrolling surgeon's classification in 77% (59/77) cases. The ratio of the length of the thumb metacarpal compared with the length of the index metacarpal was different between IIIA and IIIB thumbs (66% ± 0.08% and 46% ± 0.18%, respectively). The ratio of the width of the thumb metacarpal shaft at its narrowest aspect to the width of the thumb metacarpal base was notably different between IIIA and IIIB (68% ± 0.13% and 95% ± 0.28%, respectively). CONCLUSIONS: Near-normal length and near-normal width of the metacarpal were used to predict IIIA and abnormally short, abnormally narrow, and a round or tapered base of the metacarpal were used to predict IIIB classification. The length of the thumb metacarpal relative to the index metacarpal is on average 66% of the length of the index metacarpal in IIIA thumbs compared with 46% in IIIB thumbs. The width of the shaft of the thumb metacarpal at its narrowest is 68% of the width of the thumb metacarpal base in IIIA thumbs, indicating a flared base. In IIIB thumbs, the shaft width was on average 95% of the base width, indicating a tapered base. TYPE OF STUDY/LEVEL OF EVIDENCE: Diagnostic level III.

Classification and Treatment of Pediatric Capitellar Fractures.

BACKGROUND: Fractures of the capitellum are rare in children. The purpose of this study was to report fracture characteristics, treatment, and outcomes of pediatric capitellar fractures at a single children's hospital. We also aimed to update the classification of these fractures based on a large sample size by revising the Murthy (Boston) classification. METHODS: In a retrospective study at a single tertiary care children's hospital, fractures of the capitellum in patients below 18 years of age were queried and reviewed for demographics, injury characteristics, imaging, treatment, outcomes, and complications. Three surgeons reviewed all imaging to classify the fractures and assess interobserver and intraobserver reliability. RESULTS: Forty-four patients (25 male) with capitellar fractures with a mean age of 11.7±3.7 years were identified. Seven fractures did not belong to an existing type and were grouped into a new type IV capitellar fracture, defined as LCL avulsions with extension to the articular surface of the capitellum. We found good to excellent inter-rater and intrarater reliability for the new classification system. Our raters believed that cross-sectional imaging was essential to classifying fractures in 84% of the cases. Thirty-three of 44 patients underwent early surgical intervention, with favorable outcomes. Five patients presented late with substantial elbow contracture and malunion and were treated surgically with the excision of the fragment. CONCLUSIONS: The new classification of pediatric capitellar fractures is more comprehensive and offers good to excellent reliability. We found excellent outcomes in the majority of cases with early diagnosis and management, but substantial risk for complications with missed and delayed diagnosis. Malunion and subsequent loss of ROM were the most common presentations of a missed diagnosis, which can be surgically treated with favorable outcomes. LEVEL OF EVIDENCE: Level III-retrospective cohort study.

Physeal Fractures of the Distal Ulna: Incidence and Risk Factors for Premature Growth Arrest.

BACKGROUND: The aim of this study is to assess the rate of distal ulnar growth arrest following physeal fracture and to identify specific risk factors for premature physeal closure. METHODS: A retrospective review of patients with a distal ulnar physeal fracture was performed at a single United States children's hospital. Patients without 6-month follow-up were excluded. Patient demographics, injury characteristics, treatment, and outcomes were abstracted. Fractures were classified by the Salter-Harris (SH) system. All follow-up radiographs were reviewed for changes in ulnar variance or signs of premature physeal arrest. RESULTS: Fifty-six children with distal ulnar physeal fracture at a mean age of 10.7±3.3 years were included with a mean follow-up of 1.9 years. The most common fracture pattern was a SH II (52.7%), versus SH I (29.1%), SH III (9.1%), and SH IV (9.1%). Of displaced fractures (41.1%), the mean translation was 40.2±38.3% the and mean angulation was 24.8±20.9 degrees. Eleven fractures (19.6%) demonstrated radiographic signs of growth disturbance, including 3 patients (5.4%) with growth disturbance but continued longitudinal growth and 8 patients (14.3%) with complete growth arrest. The average ulnar variance was -3.4 mm. Three patients underwent subsequent surgical reconstruction including ulnar lengthening with an external fixator, distal ulna completion epiphysiodesis with distal radius epiphysiodesis, and ulnar corrective osteotomy. Patients with displaced fractures and SH III/IV fractures were more likely to develop a growth disturbance (34.8% vs. 3.2%, P =0.003; 50.0% vs. 11.1%, P =0.012, respectively). Children with less than 2 years of skeletal growth remaining at the time of injury had a higher risk of growth disturbance (46.2% vs. 9.5%, P =0.007). CONCLUSIONS: SH III and IV fractures are more common injury patterns in the distal ulna compared with the distal radius. Growth disturbance or growth arrest occurs in ~20% of distal ulnar physeal fractures. Displaced fractures, intra-articular fractures, fractures requiring open reduction, and older children are at increased risk of distal ulnar growth arrest and should be followed more closely. LEVEL OF EVIDENCE: Level IV--case series.

Presentation and Management of the Pediatric Trigger Finger: A Multicenter Retrospective Cohort Study.

PURPOSE: Pediatric trigger finger (PTF) is an acquired condition that is uncommon and anatomically complex. Currently, the literature is characterized by a small number of retrospective case series with limited sample sizes. This investigation sought to evaluate the presentation, management, and treatment outcomes of PTF in a large, multicenter cohort. METHODS: A retrospective review of pediatric patients with a diagnosis of PTF between 2009 and 2020 was performed at three tertiary referral hospitals. Patient demographics, PTF characteristics, treatment strategies, and outcomes were abstracted from the electronic medical records. Patients and families also were contacted by telephone to assess the downstream persistence or recurrence of triggering symptoms. RESULTS: In total, 321 patients with 449 PTFs were included at a mean follow-up of 3.9 ± 4.0 years. There were approximately equal numbers of boys and girls, and the mean age of symptom onset was 5.4 ± 5.1 years. The middle (34.7%) and index (11.6%) fingers were the most and least commonly affected digits, respectively. Overall, PTFs managed operatively achieved significantly higher rates of complete resolution compared with PTFs managed nonsurgically (97.1% vs 30.0%). Seventy-five percent of PTFs that achieved complete resolution with nonsurgical management did so within 6 months, and approximately 90% did so within 12 months. Patients with multidigit involvement, higher Quinnell grade at presentation, or palpable nodularity were significantly more likely to undergo surgery. There was no significant difference in the rate of complete resolution between splinted versus not splinted PTFs or across operative techniques. CONCLUSIONS: Only 30% of the PTFs managed nonsurgically achieved complete resolution. Splinting did not improve resolution rates in children treated nonsurgically. In contrast, surgical intervention has a high likelihood of restoring motion and function of the affected digit. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Natural History of Pediatric Hand and Wrist Ganglion Cysts: Longitudinal Follow-Up of a Prospective, Dual-Center Cohort.

PURPOSE: This investigation describes the outcomes of pediatric ganglion cysts in a prospective cohort that elected not to undergo cyst aspiration or surgical treatment. Our primary aim was to investigate the rate of spontaneous resolution over time among the subset of patients who did not undergo specific treatments. METHODS: Children (aged ≤18 years) who presented to the clinic with ganglion cysts of the hand or wrist were enrolled in a prospective two-center registry between 2017 and 2021. Enrolled subjects who never elected to undergo cyst aspiration or surgical treatment were analyzed. The data collected included age, sex, cyst location and laterality, hand dominance, Wong-Baker pain scale scores, and Patient-Reported Outcome Measurement Information System upper-extremity scores. Follow-up surveys were completed for up to 5 years. RESULTS: A total of 157 cysts in 154 children, with an average age of 9.4 years and a female-to-male ratio of 1.4:1, were eligible. The most common ganglion location was dorsal wrist (67/157, 42.7%), followed by volar wrist (49/157, 31.2%), the flexor tendon sheath (29/157, 18.5%), and the extensor tendon synovial lining (8/157, 5.1%). The average follow-up duration was 2.5 years after initial presentation to the clinic, and 63.1% (99/157) of the patients responded to follow-up surveys. Among them, 62.6% (62/99) of cysts spontaneously resolved; the resolution rates ranged from 51.9% of volar wrist ganglions to 81% of flexor tendon sheath cysts, with an average time to resolution of 14.1 months after cyst presentation. Cysts were more likely to resolve in the hand than in the wrist (84.0% vs 55.4%, respectively). Cysts present for >12 months at initial evaluation were less likely to resolve spontaneously (41.2% vs 67.1%). CONCLUSIONS: Of children who elected not to undergo aspiration or surgical treatment, approximately two-thirds of families reported that their child's ganglion cyst resolved spontaneously. Cysts that resolve spontaneously usually do so within 2 years of presentation. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Descriptive Epidemiology of Isolated Distal Radius Fractures in Children: Results From a Prospective Multicenter Registry.

INTRODUCTION: More than 1 in 4 pediatric fractures involves the distal radius. Most prior epidemiologic studies are limited to retrospective, single center investigations, and often include adults. This study aims to describe the contemporary epidemiology of pediatric distal radius fractures using prospectively collected data from a multicenter Pediatric Distal Radius Fracture Registry. METHODS: Patients aged 4 to 18 years diagnosed with a distal radius fracture from June 2018 through December 2019 at 4 tertiary care pediatric centers were screened and enrolled in this prospective longitudinal cohort study. Patients were excluded if they presented with bilateral distal radius fractures, polytrauma, or re-fracture. Demographic information, mechanism of injury, fracture characteristics, associated injuries, and procedural information were recorded. All radiographs were reviewed and measured. Descriptive statistics and bivariate analyses were performed. RESULTS: A total of 1951 patients were included. The mean age was 9.9±3.3 years, and 61.3% of patients were male ( P <0.001). Most injuries occurred during a high-energy fall (33.5%) or sports participation (28.4%). The greatest proportion of fractures occurred during the spring months (38.5%). Torus fractures (44.0%) were more common than bicortical (31.3%) or physeal (21.0%) fractures. Of the physeal fractures, 84.3% were Salter-Harris type II. Associated ulnar fractures were observed in 51.2% of patients. The mean age at injury was higher for patients with physeal fractures (11.6±2.9 y) than patients with torus or bicortical fractures (9.4±3.1 and 9.6±3.1 y, respectively; P <0.001). Thirty-six percent of distal radius fractures underwent closed reduction and 3.3% underwent surgical fixation. Patients treated with closed reduction were more likely to be male (68.7% vs. 57.2%; P <0.001), obese (25.3% vs. 17.2%; P <0.001), and have bicortical fractures (62.2% vs. 14.5%; P <0.001). CONCLUSIONS: Distal radius fractures in children have a male preponderance and are most likely to occur in the spring months and during high-energy falls and sports. Physeal fractures tend to occur in older children while torus and bicortical fractures tend to occur in younger children. LEVEL OF EVIDENCE: Level I-prognostic.

Distribution of pediatric hand fractures: age- and bone maturation-dependent differences.

PURPOSE: To investigate the distribution and characteristics of fractures of bones of the hand on radiographs with respect to age and skeletal maturity of the fractured bone, and to identify predictors of surgery. METHODS: This cross-sectional, retrospective study included children (≤ 18 years) with hand fractures who underwent radiographic examinations (2019-2021). Fracture location, presence of displacement (≥ 2 mm), angulation (≥ 10°), articular extension, and if skeletally immature, then physeal involvement and Salter-Harris grade were recorded. Mann-Whitney U, Kruskal-Wallis, Fisher's exact, and chi-square tests as well as logistic regression analyses were used. RESULTS: Study group of 508 (350 boys, 158 girls; median age, 11.9 years) included 575 (63% phalangeal, 37% metacarpal, and 0.3% carpal) fractures. Younger children were more likely to sustain phalangeal and older children carpal and metacarpal fractures (median ages: 10.8 vs 12.3 and 13.8 years, p < 0.001); and fractures of the small finger accounted for 50% of metacarpal and 43% of phalangeal fractures. Fracture displacement (12% vs 22%, p = 0.02) and angulation (25% vs 49%, p < 0.001) were more common with mature than immature bones. A third of immature bones had physeal involvement and the most common pattern was Salter-Harris type II (89%). Surgical intervention was uncommon (11%) and independent predictors were displacement (OR = 3.99, 95% CI 1.95-8.19, p < 0.001) and articular extension (OR = 5.11, 95% CI 2.00-13.07, p < 0.001). CONCLUSION: While younger children were more likely to sustain phalangeal than metacarpal fractures and less likely to have displacement and angulation when compared to older children; only displacement and articular extension were significant independent predictors of surgery.

Factors Influencing Why Children and Their Families Choose Surgery for Ganglion Cysts.

PURPOSE: Ganglion cysts of the hand/wrist are frequently managed without surgery but can be treated with surgical excision if there is pain or dysfunction. No studies have examined the specific factors predictive of surgical treatment for pediatric patients. METHODS: This was a study of pediatric patients (≤18 years) with ganglion cysts of the hand/wrist seen between 2017 and 2019 at 2 institutions. Baseline demographic data were collected in addition to cyst characteristics, Wong-Baker pain scores, and Patient-Reported Outcomes Measurement Information System scores (pain, depression, upper extremity function, anxiety). Multivariable regression was used to determine the factors predictive of surgical intervention at ≥6 months of eligible follow-up. RESULTS: A total of 167 patients with a mean age of 10.1 ± 5.3 years were included for analysis. Forty-three (25.7%) underwent surgical excision of their ganglion cyst at means of 2.3 months after the initial visit and 12.6 months after cyst appearance. Sex and cyst location were similar between cohorts. Surgical patients were older (12.1 vs 9.4 years, respectively) and presented to the clinic later after an appearance (10.9 vs 6.5 months, respectively) compared to nonsurgical patients. Surgical patients also had higher pain scores at presentation (median, 3 vs 0, respectively). Cysts receiving surgery were larger than those without surgery (81.4% vs 55.3% >1 cm, respectively). Pain interference Patient-Reported Outcomes Measurement Information System scores were higher in the surgical than the nonsurgical group (45.2 vs 39.6, respectively). In a multivariable analysis, pain scores ≥4 (odds ratio, 3.4) were predictive of surgery for patients ≥3 years, whereas older age (odds ratio, 1.1) and a cyst size >1 cm (odds ratio, 3.3) predicted surgery across all patients. CONCLUSIONS: Pediatric patients with ganglion cysts who initially present at older ages with moderate/severe pain scores and larger cysts are more likely to ultimately choose surgical excision. Surgeons may observe a preference for earlier surgery in this subset of patients. TYPE OF STUDY/LEVEL OF EVIDENCE: Prognostic II.

The Efficacy of Nonsurgical and Surgical Interventions in the Treatment of Pediatric Wrist Ganglion Cysts.

PURPOSE: The treatment of ganglion cysts of the wrist remains understudied in the pediatric population, with the literature showing variable recurrence rates following different interventions. This study sought to determine whether surgical and nonsurgical management of pediatric ganglion cysts was associated with improved resolution rates when compared to observation alone. METHODS: We identified 654 cases of pediatric ganglion cysts treated across 5 institutions between 2012 and 2017. The mean age at presentation was 11.6 ± 5.2 years. Of the patients, 315 had >2 years (mean, 50.0 months) of follow-up, either via chart review or telephone callbacks. There were 4 different treatment groups: (1) observation, (2) cyst aspiration, (3) removable orthosis, and (4) surgical excision. RESULTS: For patients followed >2 years, the cyst resolved in 44% (72/163) of those observed. Only 18% (9/49) of those treated with aspiration resolved, and 55% (12/22) of those treated with an orthosis resolved. Surgical excision was associated with resolution of the cyst in 73% (59/81) of patients. Observation had higher rates of resolution compared to aspiration. Orthosis fabrication and observation had similar rates of cyst resolution. Surgery had the highest rates of resolution when compared to observation and aspiration. Patients older than 10 years were less likely to have the cyst resolve with observation (35%; 28/80) than those younger than 10 years (53%; 44/83) at >2 years of follow-up. CONCLUSIONS: This study did not find evidence that nonsurgical treatments were associated with improved rates of cyst resolution compared to observation alone in a large pediatric sample. Surgical excision had the overall highest rate of resolution. Despite the costs and increased clinic time of orthosis fabrication and aspiration, these treatments were not associated with improved rates of cyst resolution in pediatric ganglion cysts compared to observation, with aspiration having higher rates of recurrence compared to observation. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Study Groups and POSNA: A Review of Podium Presentations From 2006 to 2020.

BACKGROUND: Study groups are multicenter collaborations aimed at improving orthopaedic decision-making through higher-powered, more generalizable studies. New research is disseminated through peer-reviewed literature and academic meetings, including the Pediatric Orthopaedic Society of North America (POSNA) annual meeting, which brings together academic and medical professionals in pediatric orthopaedics. The goal of this study was to identify patterns in podium presentations (PP) at the POSNA annual meeting resulting from multicenter study groups during a 15-year period. METHODS: A total of 2065 PP from the 2006 to 2020 POSNA annual meetings were identified. The abstracts of each PP were reviewed to determine if they resulted from a multicenter study group and for characteristics including subspecialty focus. PP from 2006 to 2018 were further reviewed for publication in academic journals. Pearson correlation was used to assess change in the number of PP resulting from study groups overtime. Univariate analysis was used to compare characteristics of PP based on study group involvement (significance P<0.05). RESULTS: The proportion of PP resulting from study groups increased from 2.2% (n=2) in 2006 to 9.4% in 2020 (n=16) (R2=0.519, P=0.002). Of the PP resulting from study groups, 52.9% focused on spine, 26.5% on hip, 2.9% on sports, and 2.0% on trauma. This is compared with a distribution of 16.7% (P<0.001) spine, 15.9% (P=0.005) hip, 9.5% (P=0.026) sports, and 14.6% (P<0.001) trauma focus of PP not from study groups. There was no difference in publication rate of PP resulting from study groups compared with those that were not (69.1% vs. 66.2%, P=0.621). CONCLUSIONS: In the 15-year period from 2006 to 2020, there was a nearly 5-fold increase in the proportion of POSNA PP resulting from study groups. Spine surgery is disproportionately supported by study groups, suggesting that there is an opportunity to establish new study groups across the breadth of pediatric orthopaedics. LEVEL OF EVIDENCE: Level V.

Local Anesthetic Injection Before Incision Decreases General Anesthesia Requirements in Pediatric Trigger Thumb Release: A Randomized Controlled Trial.

BACKGROUND: Animal studies have shown evidence of neurotoxicity from inhalational anesthesia, yet clinical studies have been less conclusive. While ongoing studies investigate the clinical significance of anesthesia-associated neurodevelopmental changes in young children, reducing anesthetic exposure in pediatric orthopaedic surgery is prudent. The primary objective of this study is to determine if local anesthetic injection before surgical incision versus after surgical release decreased inhalational anesthetic exposure in children undergoing unilateral trigger thumb release. The secondary objectives were to determine if the timing of local anesthetic injection affected postoperative pain or length of stay. METHODS: This was a single-center randomized controlled trial of pediatric patients (4 y and below) undergoing unilateral trigger thumb release. Subjects were randomized into preincision or postrelease local anesthesia injection groups. The surgeon was aware of the treatment group, while the anesthesiologist was blinded. Patient demographics, operative times, cumulative sevoflurane dose, and postoperative anesthesia care unit recovery characteristics were collected. The χ2, Fisher exact, and Mann-Whitney U tests were conducted. RESULTS: A total of 24 subjects were enrolled, with 13 randomized to the preincision injection group and 11 to the postprocedure injection group. There was no significant difference in age, sex, operative time, or tourniquet time between groups. There was a significant difference in the cumulative sevoflurane dose between the preincision injection group (23.2 vol%; interquartile range: 21.7 to 27.6) and the postprocedure injection group (28.1 vol%; interquartile range: 27 to 30) (P=0.03), with a 21% reduction in cumulative dose. There were no significant differences in postoperative pain scores, use of rescue pain medications, the incidence of nausea, or time to discharge between groups. CONCLUSIONS: Administering local anesthesia before incision versus at the end of the procedure significantly decreased cumulative sevoflurane dose for unilateral trigger thumb release. The results of this study suggest that local anesthetic injection before the incision is a low risk, easy method to reduce general anesthesia requirements during trigger thumb release and could decrease sevoflurane exposure more substantially in longer procedures and mitigate risks of neurotoxicity. Preincision injection with local anesthetic should be incorporated into routine clinical practice. LEVEL OF EVIDENCE: Level I.

Epidemiologic Changes in Pediatric Fractures Presenting to Emergency Departments During the COVID-19 Pandemic.

BACKGROUND: Fractures are a common pediatric injury. The coronavirus disease 2019 (COVID-19) pandemic resulted in significant changes in daily life that could impact the incidence of pediatric fractures. The purpose of this study was to compare the incidence of pediatric fractures in the United States during the COVID-19 pandemic to previous seasonally adjusted fracture incidence rates using the National Electronic Injury Surveillance System (NEISS) database and the American Community Survey (ACS). METHODS: The NEISS database was queried from 2016 to 2020 for fractures occurring in pediatric (0 to 17 y) patients. ACS population data allowed for the estimation of fracture incidence per 1000 person-years. Using a quasiexperimental interrupted time series design, Poisson regression models were constructed to test the overall and differential impact of COVID-19 on monthly fracture rate by age, sex, fracture site, injury location, and disposition. RESULTS: Our sample consisted of 121,803 cases (mean age 9.6±4.6 y, 36.1% female) representing 2,959,421±372,337 fractures nationally. We identified a stable 27% decrease in fractures per month after February 2020 [risk difference (RD) per 1000 youth years=-2.3; 95% confidence interval: -2.98, -1.57]). We found significant effect modification by age, fracture site and injury location ( P <0.05). The fracture incidence among children 5 years or older significantly decreased, as well as the incidence of fractures at school [RD=-0.96 (-1.09, -0.84)] and during sports [risk difference=-1.55 (-1.77, -1.32)]. There was also a trend toward a reduction in upper extremity fractures and fractures requiring admission. CONCLUSION: A nationally representative injury database demonstrated a 27% decline in monthly pediatric fractures during the COVID-19 pandemic that persisted into the latter half of 2020. These trends appeared most attributable to a reduction in fractures discharged home and upper extremity fractures among older children sustained at school and in sports. Our findings provide unique insight into the epidemiology of pediatric fractures and demonstrate a baseline need for musculoskeletal care among young children even in the setting of a national shutdown. LEVEL OF EVIDENCE: Level II-retrospective prognostic study.

Rare Presentation of Pediatric Multiple Enchondromatosis Limited to Single Ray or Single Nerve Distribution in the Hand: A Multicenter Case Series.

BACKGROUND: Multiple enchondromas in the pediatric hand is a relatively rare occurrence and the literature regarding its incidence and treatment is sparse. Within this rare subset of patients, we identified a unique cohort in which lesions are confined to multiple bones in a single ray or adjacent rays within a single nerve distribution. We review the clinical and pathologic characteristics and describe the indications for and outcomes of treatment in this unique subset of patients as well as offer conjectures about its occurrence. METHODS: Institutional review board (IRB)-approved retrospective multicenter study between 2010 and 2018 identified subjects with isolated multiple enchondromas and minimum 2-year follow-up. Data analyzed included demographics, lesion quantification and localization, symptoms and/or fracture(s), treatment of lesion(s), complications, recurrence, and presence of malignant transformation. RESULTS: Ten patients were evaluated with average age at presentation of 9 years (range: 4 to 16) and mean clinical follow-up of 6 years (range: 2.8 to 8.6). Five subjects had multiple ray involvement in a single nerve distribution and 5 had single ray involvement with an average of 4 lesions noted per subject (range: 2 to 8). All children in the study had histopathologic-proven enchondromas and underwent operative curettage±bone grafting. Indications for surgical intervention included persistent pain, multiple prior pathologic fractures, impending fracture and deformity. During the study period three subjects experienced pathologic fracture treated successfully with immobilization. Recurrence was noted in 40% at an average of 105 weeks postoperatively (range: 24 to 260) and appears higher than that reported in the literature. No case of malignant transformation was observed during the study period. CONCLUSIONS: A rare subset of pediatric patients with multiple enchondromas of the hand is described with lesions limited to a single ray or single nerve distribution. Further awareness of this unique subset of patients may increase our understanding of the disease and improve patient outcomes. LEVEL OF EVIDENCE: Level IV-therapeutic (case series).

Implicit Racial Bias in Pediatric Orthopaedic Surgery.

INTRODUCTION: Racial and ethnic minority patients continue to experience disparities in health care. It is important to understand provider-level factors that may contribute to these inequities. This study aims to evaluate the presence of implicit racial bias among pediatric orthopaedic surgeons and determine the relationship between bias and clinical decision making. METHODS: A web-based survey was distributed to 415 pediatric orthopaedic surgeons. One section measured for potential implicit racial bias using a child-race implicit association test (IAT). IAT scores were compared with US physicians and the US general population using publicly available data. Another section consisted of clinical vignettes with associated questions. For each vignette, surgeons were randomly assigned a single race-version, White or Black. Vignette questions were grouped into an opioid recommendation, management decision, or patient perception category for analysis based on subject tested. Vignette answers from surgeons with IAT scores that were concordant with their randomized vignette race-version (ie, surgeon with pro-White score assigned White vignette version) were compared with those that were discordant. RESULTS: IAT results were obtained from 119 surveyed surgeons (29% response rate). Overall, respondents showed a minor pro-White implicit bias ( P <0.001). Implicit bias of any strength toward either race was present among 103/119 (87%) surgeons. The proportion of pediatric orthopaedic surgeons with a strong pro-White implicit bias (29%) was greater than that of US physicians overall (21%, P =0.032) and the US general population (19%, P =0.004). No differences were found in overall opioid recommendations, management decisions, or patient perceptions between concordant and discordant groups. CONCLUSION: Most of the pediatric orthopaedic surgeons surveyed demonstrated implicit racial bias on IAT testing, with a large proportion demonstrating strong pro-White bias. Despite an association between implicit bias and clinical decision making in the literature, this study observed no evidence that implicit racial bias affected the management of pediatric fractures. LEVEL OF EVIDENCE: Level IV.

Impact of Cost Information on Parental Decision Making: A Randomized Clinical Trial Evaluating Cast Versus Splint Selection for Pediatric Distal Radius Buckle Fractures.

BACKGROUND: Price transparency purports to help patients make high-value health care decisions, however, there is little data to support this. The pediatric distal radius buckle fracture (DRBF) has 2 equally efficacious but not equally priced treatment options (cast and splint), serving as an excellent potential model for studying price transparency. This study uses the DRBF model to assess the impact of up-front cost information on a family's treatment decisions when presented with clinically equivalent treatment options for a low-risk injury. METHODS: Participants age 4 to 14 presenting with an acute DRBF to a hospital-based pediatric orthopaedic clinic were recruited for this randomized controlled trial. Participants were randomized into cost-informed or cost-blind cohorts. All families received standardized information about the injury and treatment options. Cost-informed families received additional cost information. Both groups were allowed to freely choose a treatment. Families were surveyed regarding their decision factors. Cost-blinded families were subsequently presented with the cost information and could change their decision. Independent samples t tests and χ2 tests were utilized to evaluate differences. RESULTS: A total of 127 patients were enrolled (53% cost-informed, 47% cost-blind). The 2 groups did not significantly differ in demographics. Immobilization selection did not differ between groups, with 48% of the cost-informed families selecting the more expensive option (casting), compared with 47% of the cost-blind families. Cost was the least influential factor in the decision-making process according to participant survey, influencing only 9% of families. Only one family changed their decision after receiving cost information, from a splint to a cast. CONCLUSION: Families appear to be cost-insensitive when making medical treatment decisions for low-risk injuries for their child. Price transparency alone may not help families arrive at a decision to pursue high-value treatment in low-risk orthopaedic injuries. LEVEL OF EVIDENCE: Level I.

How Much Will My Child's ACL Reconstruction Cost? Availability and Variability of Price Estimates for Anterior Cruciate Ligament Reconstruction in the United States.

BACKGROUND: Despite recent policy efforts to increase price transparency, obtaining estimated prices for surgery remains difficult for most patients and families. PURPOSE: Assess availability and variability of cost and self-pay discounts for pediatric anterior cruciate ligament (ACL) reconstruction in the United States. METHODS: This was a prospective study using scripted telephone calls to obtain price estimates and self-pay discounts for pediatric ACL reconstruction. From July to August 2020, investigators called 102 hospitals, 51 "top-ranked" pediatric orthopaedic hospitals and 51 "non-top ranked" hospitals randomly selected, to impersonate the parent of an uninsured child with a torn ACL. Hospital, surgeon, and anesthesia price estimates, availability of a self-pay discount, and number of calls and days required to obtain price estimates were recorded for each hospital. Hospitals were compared on the basis of ranking, teaching status, and region. RESULTS: Only 31/102 (30.3%) hospitals provided a complete price estimate. Overall, 52.9% of top-ranked hospitals were unable to provide any price information versus 31.4% of non-top-ranked hospitals ( P =0.027). There was a 6.1-fold difference between the lowest and highest complete price estimates (mean estimate $29,590, SD $14,975). The mean complete price estimate for top-ranked hospitals was higher than for non-top-ranked hospitals ($34,901 vs. $25,207; P =0.07). The mean complete price estimate varied significantly across US region ( P =0.014), with the greatest mean complete price in the Northeast ($41,812). Altogether, 38.2% hospitals specified a self-pay discount, but only a fraction disclosed exact dollar or percentage discounts. The mean self-pay discount from top-ranked hospitals was larger than that of non-top-ranked hospitals ($18,305 vs. $9902; P =0.011). An average of 3.1 calls (range 1.0 to 12.0) over 5 days (range 1 to 23) were needed to obtain price estimates. CONCLUSION: Price estimates for pediatric sports medicine procedures can be challenging to obtain, even for the educated consumer. Top-ranked hospitals and hospitals in the Northeast region may charge more than their counterparts. In all areas, self-pay discounts can be substantial if they can be identified but they potentially create an information disadvantage for unaware patients needing to pay out-of-pocket. STUDY DESIGN: Economic; Level of Evidence II. WHAT IS KNOWN ABOUT THE SUBJECT: Previous studies have highlighted the importance of value-based health care decisions and deficits of price transparency in various fields including pediatric and orthopaedics procedures. WHAT THIS STUDY ADDS TO EXISTING KNOWLEDGE: This study is the first to examine availability and variability of health care cost in pediatric sports medicine and the first to assess availability and magnitude of self-pay discounts, setting expectations for the uninsured patient incurring large out-of-pocket expenses.

Clinical Presentation and Characteristics of Hand and Wrist Ganglion Cysts in Children.

PURPOSE: Ganglion cysts are the most common mass of the hand or wrist. In adults, ganglions have a female predilection and are commonly located in the dorsal wrist. However, their presentation in children has not been well reported. This investigation sought to describe the presentation of pediatric ganglion cysts in a prospective cohort. METHODS: A multicenter prospective investigation of children (aged ≤18 years) who presented with ganglion cysts of the hand or wrist was conducted between 2017 and 2019. The data collected included age, sex, cyst location, hand dominance, pain, and patient-reported outcomes measurement information system (PROMIS) scores for upper-extremity (UE) function. The patients were divided into cohorts based on age, cyst location, and cyst size. Multivariable analyses were performed to identify factors predictive of worse UE function and higher pain scores. RESULTS: A total of 173 patients with a mean age of 10.1 ± 5.3 years and female-to-male ratio of 1.4:1 were enrolled. The dorsal wrist was the most commonly affected (49.7%), followed by the volar wrist (26.6%) and flexor tendon sheath (18.5%). In older patients, dorsal wrist ganglions were more common than tendon sheath cysts (11.9 ± 4.1 years vs 6.2 ± 5.8 years) and were larger (86.7% were >1 cm) than cysts in other locations (34.5% were >1 cm). Patients aged >10 years reported higher pain scores, with 21.5% of older patients reporting moderate/severe pain scores versus 5.0% of younger children. This cohort of patients had an average PROMIS UE function score of 47.4 ± 9.5, and lower PROMIS scores were associated with higher pain scores. CONCLUSIONS: Ganglions in pediatric populations, which most commonly affect the dorsal wrist, demonstrate a female predilection. In younger children, cysts are smaller and more often involve the volar wrist or flexor tendon sheath. Older children report higher pain scores. Pediatric ganglion cysts do not appear to result in a clinically meaningful decrease in UE function. TYPE OF STUDY/LEVEL OF EVIDENCE: Diagnostic II.

Open reduction of radial neck fractures in children: injury severity predicts the radiographic and clinical outcomes.

BACKGROUND: Radial neck fractures are the third most common elbow fracture in children. Open reduction may be required if closed or mini-open techniques are not successful in reducing the fracture. Previous reports on open reduction have noted poor outcomes and complications with this treatment approach. However, it is unknown whether it is the open procedure itself or the severity of the initial injury that leads to the poor results. The purpose of this study was to evaluate the correlation between intraoperative findings at the time of open reduction of radial neck fractures and the clinical and radiographic outcomes. METHODS: Data from patients who underwent open reduction for an acute radial neck fracture between January 2009 and December 2018 were abstracted and reviewed. Patients undergoing open treatment for a nonunion or malunion and those with inadequate follow-up were excluded. Demographic data, injury characteristics, treatment strategies, intraoperative findings, and clinical and radiographic outcomes were assessed. RESULTS: Twenty-two patients met the inclusion criteria. Of these patients, 14 were girls. The mean age was 9.7 ± 3 years, and the mean follow-up period was 15.8 months. Fifteen patients had a Judet grade IV displacement. Fair or poor outcomes were observed in 12 patients (55%). Ten reoperations were recorded during the study period. Age, weight, and associated injuries were not predictive of poor outcomes. Intraoperative findings of soft-tissue stripping and radial head comminution were the only significant predictors of fair or poor clinical outcomes (P < .001) and subsequent radiographic changes including fragmentation and collapse of the radial head and arthritic changes (P < .001). The quality of reduction and the choice of hardware were not significantly associated with either clinical or radiographic outcomes. CONCLUSION: Our findings support the notion that the outcomes of open reduction of radial neck fractures are most closely correlated with the injury severity, with the intraoperative findings of complete soft-tissue stripping or comminution of the radial head fragment being significant predictors of poor clinical and radiographic outcomes. The choice of hardware and the quality of reduction achieved at the time of surgery have less significance than injury severity.

Opioid Prescriptions After Pediatric Orthopedic Surgery: Analyzing Rates of Unfilled Prescriptions.

BACKGROUND: The prevalence of nonmedical use of prescription opioids among American teenagers is staggering. Reducing the quantity of postoperative opioid prescriptions can help address this epidemic by decreasing the availability of opioids. As the fourth most common opioid prescribers, orthopaedic surgeons are primed to lead efforts to reverse this crisis. The purpose of this study was to determine patient factors associated with filling opioid prescriptions after pediatric orthopaedic surgery and to recommend potential methods to limit excess opioid prescriptions. METHODS: This retrospective cohort study included 1413 patients who were prescribed opioids upon discharge after an orthopaedic surgical procedure at a single urban children's hospital from 2017 to 2018. The state's Prescription Drug Monitoring Program was used to determine which patients filled their opioid prescriptions. Comparisons of demographic, clinical, and surgical factors were made between patients that filled their opioid prescription upon discharge and those that did not. Statistical analysis included λ2, Mann-Whitney U, and binary logistic regression for significant factors from bivariate analysis. RESULTS: Nine percent (n=127) of patients did not fill their opioid prescriptions after discharge. Those who filled and did not fill prescriptions were similar in terms of sex, ethnicity, race, insurance type, and age at surgery (P>0.05). Patients who did not fill their opioid prescriptions received significantly fewer opioids during their postoperative hospital course (5.3 vs. 7.7 mg oxycodone, P=0.01). Not receiving oral oxycodone during postoperative hospitalization (odds ratio=2.16, 95% confidence interval: 1.49-3.14) and undergoing upper extremity surgery (odds ratio=2.00, 95% confidence interval: 1.37-2.91) were independently associated with not filling opioid prescriptions after surgery in the multivariate analysis. CONCLUSIONS: This study identified a subset of pediatric orthopaedic surgery patients who were prescribed opioids upon discharge but did not fill those prescriptions. Factors that increased the likelihood that patients did not fill their prescriptions upon discharge included fewer postoperative hospital course opioids, no oral oxycodone, and surgery on the upper extremity. Future studies must be performed to help decrease the number of opioids prescribed unnecessarily. LEVEL OF EVIDENCE: Level III-prognostic cohort study.