Faculty Bibliography

BACKGROUND/UNASSIGNED:The use of adjustable-loop devices (ALDs) has become increasingly common due to the ability to intraoperatively precondition a repair and retension the construct to provide additional stabilization. While ALDs have been supported for anterior cruciate ligament (ACL) repair and reconstruction, a biomechanical rationale for the addition of ALDs for the reduction of tibial eminence avulsion fracture is limited. PURPOSE/UNASSIGNED:To biomechanically compare standard suture fixation to suture fixation with an ALD for the reduction of tibial eminence avulsion fractures. STUDY DESIGN/UNASSIGNED:Controlled laboratory study. METHODS/UNASSIGNED:< .05). RESULTS/UNASSIGNED:= .023) were achieved by the ALD repairs (mean, 532 N; 95% CI, 461-604 N) compared with the standard repair (mean, 410 N; 95% CI, 327-495 N). There were no statistical differences in cyclic stiffness between repair groups for each load block. CONCLUSION/UNASSIGNED:The addition of an ALD to suture fixation for tibial eminence avulsion fractures significantly reduced the total cyclic elongation by 86% and increased the ultimate load by 30% when compared with a standard suture fixation. The results suggest better time-zero biomechanics as compared with standard suture fixation. CLINICAL RELEVANCE/UNASSIGNED:Incorporation of ALD fixation into a standard suture repair may help stabilize fragment reduction, minimizing loss of reduction and potentially improving the bone healing response in tibial eminence fracture repair by minimizing micromotion. Future clinical studies are warranted to complement these biomechanical findings.

UNLABELLED:Anterior cruciate ligament (ACL) injuries are increasingly common in pediatric and adolescent athletes, driven by rising participation in high-risk sports. Functional knee bracing (FKB) has been proposed as a strategy to reduce both initial injuries and reinjuries following ACL reconstruction (ACLR). The current review examines biomechanical and clinical evidence related to the use of FKB status post-ACLR, focusing on its potential in preventing ACL re-injury. Biomechanical studies suggest that FKB may reduce abnormal knee movements in controlled conditions, specifically anterior tibial translation. However, results are inconsistent on preventing injury-inducing movements or mechanisms in the knee when assessed as part of dynamic testing. Clinically, the small number of relevant comparative studies analyzing braced versus nonbraced cohorts show heterogeneous results, with mixed conclusions on whether FKB effectively reduces ACL re-tear rates. There are several understudied aspects associated with FKB, leaving surgeons without definitive recommendations regarding key factors, such as the optimal brace type, the impact of graft type, appropriate timing and duration of brace wear, compliance challenges, and the psychological and proprioceptive effects of bracing on patients. Given the conflicting evidence and lack of definitive existing guidelines, the role of FKB for patients returning to high-risk activities after ACLR currently remains uncertain, underscoring the need for higher-quality research to guide clinical practice, particularly for the highest risk sub-populations of pediatric and adolescent athletes. KEY CONCEPTS/UNASSIGNED:(1)Functional knee braces have been shown to reduce anterior tibial translation in controlled conditions but show inconsistent effects on rotational forces and valgus stability during dynamic activities.(2)Clinical studies offer conflicting evidence on the effectiveness of functional bracing in reducing ACL re-tear rates, with no consensus on routine use.(3)Patient-specific factors, including graft type, compliance, and baseline knee stability, may influence the effectiveness of functional bracing.(4)Psychological benefits, such as reduced fear of reinjury, may contribute to the value of bracing, though effects on proprioception and muscle strength are mixed.(5)Further research is needed, particularly with dynamic, sport-specific testing, to determine the true efficacy of functional bracing in ACL reconstruction recovery.

PURPOSE OF REVIEW/OBJECTIVE:Anterior cruciate ligament (ALC) tears are increasingly common in skeletally immature patients, as more children and adolescents participate in intensive sports training and specialization at increasingly younger ages. These injuries were historically treated nonoperatively, given concerns for physeal damage and subsequent growth disturbances after traditional ACL reconstruction techniques. However, there is now sufficient data to suggest superior outcomes with operative treatment, specifically with physeal-sparing and physeal-respecting techniques. This article reviews considerations of skeletal maturity in patients with ACL tears, then discusses surgical techniques, with a focus on their unique indications and outcomes. Additional surgical adjuncts and components of postoperative rehabilitation, which may reduce retear rates, are also considered. RECENT FINDINGS/RESULTS:Current research shows favorable patient-reported outcomes and high return-to-sport rates after ACL reconstruction in skeletally immature patients. Graft rupture (ACL retear) rates are low, but notably higher than in most adult populations. Historically, there has been insufficient research to comprehensively compare reconstruction techniques used in this patient population. However, thoughtful systematic reviews and multicenter prospective studies are emerging to address this deficit. Also, more recent data suggests the addition of lateral extra-articular procedures and stringent return-to-sports testing may lower retear rates. Physeal-sparing and physeal-respecting ACL reconstructions result in stabilization of the knee, while respecting the growth remaining in children or skeletally immature adolescents. Future research will be essential to compare these techniques, given that more than one may be appropriate for patients of a specific age and skeletal maturity.

BACKGROUND/UNASSIGNED:Patients are faced with several treatment decisions after an ulnar collateral ligament (UCL) injury: nonoperative versus operative treatment, repair versus reconstruction, and immediate versus delayed surgery. PURPOSE/HYPOTHESIS/UNASSIGNED:The aim of this study was to investigate the factors important to patients when deciding which treatment to pursue after a UCL injury. We hypothesized that (1) length of time away from sports and seasonal timing would be important to patients and (2) treatment decision-making would be heavily influenced by how many and which seasons of their baseball career would be missed. STUDY DESIGN/UNASSIGNED:Cross-sectional study. METHODS/UNASSIGNED:High school and collegiate baseball players with UCL tears treated at an academic institution were surveyed retrospectively on their sports participation at the time of injury and their UCL injury treatment decisions. Respondents rated the influence of various factors on a 5-point Likert scale, and they selected the top 3 factors and the single most important factor influencing their treatment decisions. Multiple logistic regression analysis was used to assess the relationship between player characteristics and factors important to their treatment decision. RESULTS/UNASSIGNED:A total of 83 athletes completed the survey; 40 were in high school and 43 were in college at the time of injury; 7 were treated nonoperatively and 76 underwent surgery (66 immediately and 10 in a delayed fashion), 10 with UCL repair and 66 with UCL reconstruction. The ability to play competitive baseball in the long term was very important or extremely important to 90% of players, while the ability to play in the short term was very important or extremely important to 17%. Length of recovery and seasonal timing were also important factors for 53% and 54% of players, respectively, and almost all (90%) highly valued advice from a surgeon. Possible failure of nonoperative treatment leading to increased time away and the possible loss of 2 consecutive baseball seasons heavily influenced decision-making in 41% of respondents. CONCLUSION/UNASSIGNED:Survey respondents were driven by the desire to play baseball in the long term. Treatment decisions were influenced by the length of recovery and by the seasonal timing of their injury, both of which affect how many and which seasons of baseball a player may miss. Patients found advice from their surgeon to be extremely important to decision-making.

BACKGROUND/UNASSIGNED:Increased posterior tibial slope (PTS) is a risk factor for knee pathology. Accurate measurement of PTS is predicated on a quality lateral knee radiograph; however, little is known about how the quality of the radiograph affects the measured PTS. PURPOSES/UNASSIGNED:To (1) describe a method for measuring malalignment on lateral knee radiographs, (2) assess the effects of malpositioning of the knee on radiographic measures of malalignment, and (3) determine any correlations between malalignment and the measured PTS. STUDY DESIGN/UNASSIGNED:Descriptive laboratory study. METHODS/UNASSIGNED:Using a setup similar to that of a standard radiology suite, 25 sets of radiographs were taken using 5 sawbone models. Each set included a true lateral view and separate malpositioned radiographs at 5°, 10°, and 15° of adduction, abduction, internal rotation, and external rotation. Malalignment for each radiograph was quantified as the anterior-posterior distance (APD) and proximal-distal distance (PDD) between femoral condyles. The medial PTS was measured in duplicate, and the interrater reliability was calculated. RESULTS/UNASSIGNED: CONCLUSION/UNASSIGNED:The measured PTS was more sensitive to malpositioning by abduction/adduction than by malrotation. Malrotation affected the APD, while abduction/adduction affected the PDD. Thus, the accuracy of the measured PTS was compromised more by poorly aligned distal femoral condyles than it was by poorly aligned posterior femoral condyles. CLINICAL RELEVANCE/UNASSIGNED:To minimize the effects of malpositioning, we recommend utilizing radiographs with a |PDD| of <5 mm and an |APD| of <15 mm when measuring the PTS.

BACKGROUND/UNASSIGNED:There is minimal work defining the economic impact of resident participation in shoulder arthroplasty. Thus, this study quantified the opportunity cost of resident participation in total shoulder arthroplasty (TSA) and hemiarthroplasty (HA) by determining differences in operative time, relative value units (RVUs)/hour, and RVUs/case. METHODS/UNASSIGNED:A retrospective analysis of shoulder arthroplasty procedures were identified from the ACS-NSQIP database from 2006 to 2014 using CPT codes. Demographic, comorbidity, preoperative laboratory data and surgical procedure were used to develop matched cohorts. Mean differences in operative time, RVUs/case and RVUs/hour between attending-only (AO) cases and cases with resident involvement (RI) were examined. Cost analysis was performed to identify differences in RVUs generated per hour in dollars/case. RESULTS/UNASSIGNED:A total of 1786 AO and 1102 RI cases were identified. With the exception of PGY-3 and PGY-4 cases, RI cases had lower mean operative times compared to AO cases. The cost of RI was highest for PGY-3 ($199.87 per case) and PGY-4 ($9 .2 9) residents with all other postgraduate years providing a cost reduction. DISCUSSION/UNASSIGNED:Involvement of residents was associated with shorter operative times leading to a savings of $29.64 per case. Involvement of intermediate-level (PGY-3) residents were associated with increased costs that ultimately decreased as residents became more senior.

BACKGROUND:Radiographic assessment of bone age is critically important to decision-making on the type and timing of operative interventions in pediatric orthopaedics. The current widely accepted method for determining bone age is time and resource-intensive. This study sought to assess the reliability and accuracy of 2 abbreviated methods, the Shorthand Bone Age (SBA) and the SickKids/Columbia (SKC) methods, to the widely accepted Greulich and Pyle (GP) method. METHODS:Standard posteroanterior radiographs of the left hand of 125 adolescent males and 125 adolescent females were compiled, with bone ages determined by the GP method ranging from 9 to 16 years for males and 8 to 14 years for females. Blinded to the chronologic age and GP bone age of each child, the bone age for each radiograph was determined using the SBA and SKC methods by an orthopaedic surgery resident, 2 pediatric orthopaedic surgeons, and a musculoskeletal radiologist. Measurements were then repeated 2 weeks later after rerandomization of the radiographs. Intrarater and interrater reliability for the 2 abbreviated methods as well as the agreement between all 3 methods were calculated using weighted κ values. Mean absolute differences between methods were also calculated. RESULTS:Both bone age methods demonstrated substantial to almost perfect intrarater reliability, with a weighted κ ranging from 0.79 to 0.93 for the SBA method and from 0.82 to 0.96 for the SKC method. Interrater reliability was moderate to substantial (weighted κ: 0.55 to 0.84) for the SBA method and substantial to almost perfect (weighted κ: 0.67 to 0.92) for the SKC method. Agreement between the 3 methods was substantial for all raters and all comparisons. The mean absolute difference, been GP-derived and SBA-derived bone age, was 7.6±7.8 months, as compared with 8.8±7.4 months between GP-derived and SKC-derived bone ages. CONCLUSIONS:The SBA and SKC methods have comparable reliability, and both correlate well to the widely accepted GP methods and to each other. However, they have relatively large absolute differences when compared with the GP method. These methods offer simple, efficient, and affordable estimates for bone age determination, but at best provide an estimate to be used in the appropriate setting. LEVEL OF EVIDENCE/METHODS:Diagnostic study-level III.

INTRODUCTION/BACKGROUND:The COVID-19 pandemic created unprecedented challenges to residency recruitment. With in-person away rotations prohibited and interviews held virtually, orthopaedic residency programs turned to social media. Studies document the exponential growth of residency program Instagram accounts after March 2020, but few analyze the content of their posts. This study provides an updated assessment of such Instagram accounts including a detailed analysis of their content and a discussion of potentially concerning posts. METHODS:Orthopaedic surgery residency programs participating in the National Resident Matching Program and any Instagram accounts associated with these programs were identified. Instagram accounts were analyzed, and the 25 most recent posts and all highlighted stories for each account were coded for content based on a predetermined list of categories. Specific attention was given to content that may raise legal, ethical, or professionalism concerns. The primary outcome was the most common content code among posts. The secondary outcomes were the number of posts identified as potentially concerning and the types of concerns represented. RESULTS:Overall, 138 of 193 residency programs (72%) had an Instagram account at the time of cross-sectional analysis, 65% of which were created between April and December 2020. All accounts were public. Profiles had on average 1,156 ± 750 followers and 59 ± 75 posts. Of the 3,348 posts analyzed, the most common coded themes were resident introductions (33%), camaraderie (27%), and social life and hobbies (26%). There were 81 concerning posts from 52 separate accounts. Seventy-five of the concerning posts (93%) depicted residents scrubbed alone. CONCLUSION/CONCLUSIONS:Orthopaedic residency Instagram accounts are potential tools for residency recruitment and can depict a program's culture through posts over time. However, public accounts are open to scrutiny by other viewers, including patients and their families. Care must be taken to consider multiple perspectives of post content, so as to bolster, not damage, the residency program's reputation.

BACKGROUND:Addressing operational inefficiencies in operating rooms (ORs) enhances patient access to care, reduces delays, and improves employee and patient satisfaction. The Comprehensive Unit-based Safety Program (CUSP) promotes patient safety through increased teamwork, empowerment of frontline staff, and utilization of science of safety principles. CUSP has demonstrated success in outpatient and inpatient settings to decrease complication rates and establish a culture of safety but has been used minimally in the perioperative setting. In this study, the CUSP methodology was utilized to improve perioperative efficiency in pediatric spine surgery, and preimplementation and postimplementation efficiency were compared, using the rate of first case on-time starts (FCOTS) as the primary metric. METHODS:A CUSP quality improvement workgroup including nurses, technicians, surgeons, anesthesiologists, and administrators sought feedback on opportunities for improvement and tracked key performance metrics in the OR from 2015 to 2020. Key interventions developed in response to feedback included standardizing and streamlining room setup and adjusting staffing models for greater efficiency. Univariate analysis was conducted to compare time periods pre-CUSP and post-CUSP implementation. RESULTS:First case on-time starts increased from 38% to a high of 81% after implementation. For more complex cases, the average patient in the room to anesthesia ready time improved by 31% with decreased variance over time, and average closure to patient out of room time improved by 45%. Improvements were sustained through Year 3, while CUSP remained a primary focus for the team. CONCLUSIONS:CUSP is effective in enhancing perioperative efficiency, demonstrating strong improvement in on-time starts over 5 years. The results indicate that process improvement in ORs requires consistent attention to sustain gains over time. Engaging frontline staff in quality improvement fosters collaboration and provides employee buy-in to promoting a culture of safety and improving value in patient care. LEVEL OF EVIDENCE/METHODS:Level III-retrospective comparative study.

Within orthopaedic surgery, podcasts are a popular medium for sharing information. The purpose of this Training Room feature was to identify the number, type, longevity, popularity, and advantages and disadvantages of orthopaedic surgery podcasts and to better understand the role of podcasts in our field by interviewing key leaders in orthopaedic surgery who host their own podcast. We identified 102 unique orthopaedic podcasts. The number of active podcasts grew from 5 in 2016 to 67 in 2021, which represents an increase of 1,340%. Podcasts offer the advantages of easy access to knowledge and opportunity for multitasking. They come with the disadvantages of lack of visualization in a field that relies heavily on diagrams, photographs, videos, and radiographs and lack of peer review, which means false information may be propagated. We anticipate an increase in the number and popularity of orthopaedic surgery podcasts in the coming years.