Publications by authors named "Christopher D Bernard"

Background: Burnout has been associated with decreased quality of patient care and results in an estimated cost of roughly $5 billion per year. With a growing awareness of burnout prevalence in high-level athletes, the physicians working with the athletic departments of the National Collegiate Athletic Association (NCAA) institutions can be forgotten.

Purpose: To assess the prevalence of burnout among physicians of the NCAA teams and assess predictors that may lead to burnout.

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Purpose: To assess the definitions of "failure" of knee chondral restoration surgery in the current literature and to provide a recommendation on what should define failure.

Methods: By use of Preferred Reporting Items for Systematic Reviews and Meta-analyses criteria, a systematic search of the PubMed, Embase, Ovid, and Cochrane Library databases was conducted to identify studies published between January 1, 2017, and May 1, 2021. The inclusion criteria consisted of studies containing patients who underwent knee cartilage surgery that included a definition of failure.

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Purpose: To perform a systematic review about the varying definitions of "failure" of hip arthroscopy (HA) in the current literature and to provide a recommendation for the standardization of defining failure of HA.

Methods: A systematic search of electronic databases was conducted to identity Level I-IV clinical studies on HA failure published between January 2016 and July 2021 according to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Inclusion criteria consisted of studies of patients who underwent an arthroscopic hip procedure and included a definition of failure.

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Background: The ulnar collateral ligament (UCL) is frequently injured in overhead throwing athletes, leading to elbow instability, pain and decreased performance, and requiring surgical intervention. Augmenting with suture tape provides a novel approach to UCL repair, offering stability while preserving native anatomy, proprioception, and minimizing bone loss, with the added benefit of an expected faster rehabilitation and return to sport (RTS) compared to traditional UCL reconstruction. The purpose of this study is to assess the variability of the current publicly available rehabilitation protocols for elbow UCL repair with suture tape augmentation.

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Article Synopsis
  • The study aimed to explore how physical function tests of the leg after ACL reconstruction relate to psychological readiness to return to sports, focusing on potential differences between men and women.
  • It involved 127 patients (63 men and 64 women) who performed physical tests and completed an ACL-RSI survey, revealing that while both genders reported similar readiness scores, men outperformed women in most physical tests.
  • Notably, only knee excursion in men predicted their ACL-RSI scores, while no physical performance measures were associated with ACL-RSI in women, suggesting that psychological readiness might be influenced by factors beyond physical function testing.
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Introduction:  Second anterior cruciate ligament (SACL) injuries are a devastating complication following return to sport (RTS). Appropriate and safe RTS criteria that reduce the risk of SACL injuries are needed. The goal of this study was to investigate the relationship between functional and isokinetic testing at 6 months following primary ACL reconstruction (ACLR) as risk factors for SACL injuries.

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Background: Data on the long-term outcomes of nonoperative treatment of anterior shoulder instability are lacking, particularly for the US population. The purpose was to (1) describe the characteristics of patients with anterior shoulder instability treated nonoperatively, (2) assess the long-term outcomes of nonoperative management in a US population, and (3) identify risk factors for poor outcomes following nonoperative management.

Methods: A geographic cohort of >500,000 subjects was used to identify patients treated nonoperatively for anterior shoulder instability.

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Purpose: To analyze the available literature pertaining to the indications, outcomes, and complications of both microfracture (MFX) and simple debridement for capitellar osteochondritis dissecans (OCD).

Methods: A comprehensive literature review was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) criteria. Studies were included if they evaluated OCD of the capitellum that underwent either arthroscopic debridement (AD) or MFX.

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Objective: To report the injury characteristics, radiographic findings, and long-term outcomes of nonoperative management for posterior shoulder instability (PSI).

Design: A retrospective review of 143 patients with PSI using a large geographic database.

Setting: Single county between January 1994 and July 2012.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of nonoperative treatment for traumatic anterior shoulder instability among young adults in the U.S., focusing on success rates, factors leading to surgery, and long-term outcomes.
  • Researchers analyzed data from 379 patients treated nonoperatively between 1994 and 2016, finding that 20.1% eventually required surgery and noted a significant reduction in recurrence rates for those who did undergo surgical treatment.
  • Key predictors for needing surgery included a history of multiple shoulder subluxations or dislocations before initial treatment, with those undergoing surgery experiencing a drop in instability recurrence rates from 92.4% to 10.1%.
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Background: Hip dysplasia is a common source of hip pain and a known cause of early osteoarthritis of the hip.

Purpose: To (1) define the population-based incidence of hip dysplasia diagnosis in young patients presenting with hip pain in a large geographically defined cohort, (2) analyze trends regarding presentation and diagnosis of hip dysplasia, and (3) report the rate and type of surgical interventions used to treat this population.

Study Design: Cross-sectional study; Level of evidence, 3.

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Purpose: To compare the differences in preoperative pathology, surgical technique, and overall outcomes between patients treated surgically after a single anterior glenohumeral joint dislocation and those undergoing surgery after multiple dislocations.

Methods: An epidemiologic database was used to identify all patients younger than 40 years undergoing surgery for anterior shoulder instability between January 1, 1994, and July 31, 2016, in a defined geographic area. Patient medical records were reviewed to obtain demographic information, patient history, physical examination findings, imaging findings, clinical progression, surgical details, and outcomes.

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Article Synopsis
  • The study reports the annual incidence of anterior shoulder instability (ASI) diagnoses, injury severity, and surgical stabilization in patients under 40 in the U.S. from 1994-2016.
  • It found that dislocations and instability events per patient increased over the years, alongside improvements in MRI diagnosis of related bone lesions.
  • Surgical procedures, particularly arthroscopic and open Latarjet methods, have also risen, indicating a shift towards more aggressive treatment and thorough documentation by orthopedic surgeons.
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Background: The rate of osteoarthritis (OA) in patients with a history of previous anterior shoulder instability (ASI) varies within the literature, with the majority of studies investigating rates after surgical stabilization. ASI appears to lead to increased rates of OA, although risk factors for developing OA in cohorts treated nonoperatively and operatively are not well-defined.

Purpose: To determine the incidence of clinically symptomatic OA and identify potential risk factors for the development of OA in patients younger than 40 years with a known history of ASI.

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Purpose: The purpose of this study was to evaluate the effect of preoperative patella alta on clinical outcomes, survivorship, and complication and reoperation rates on patellofemoral arthroplasty (PFA).

Methods: All patients who underwent PFA for isolated patellofemoral arthritis by a single surgeon at our institution were identified. Preoperative radiographs were measured by two independent observers for patellar height using the Caton Deschamps (CD), Insall-Salvati (IS), and Blackburne-Peele (BP) methods.

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Objective: To analyze the clinical outcomes, knee function, and activity level of patients after treatment of full-thickness cartilage defects involving the patellofemoral compartment of the knee with cryopreserved osteochondral allograft.

Design: Nineteen patients with cartilage defects involving the patellofemoral compartment were treated. The average age was 31 years (range 15-45 years), including 12 females and 7 males.

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Purpose: To systematically evaluate the outcomes and complications of osteochondral autograft transfer (OAT) and osteochondral allograft transplantation (OCA) for the surgical treatment of capitellar osteochondritis dissecans (OCD).

Methods: A literature search was conducted across 3 databases (PubMed, Cochrane, and CINAHL [Cumulative Index to Nursing and Allied Health Literature]) from database inception through December 2019 in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Individual study quality was assessed using the Methodological Index for Non-randomized Studies scale.

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Purpose: To determine (1) the demographic characteristics as well as radiographic findings of medial versus lateral meniscal root tears at time of presentation, (2) treatment decisions and clinical outcomes of patients undergoing medial versus lateral root repair, and (3) risk factors for worse clinical and radiographic outcomes.

Methods: A retrospective review was performed to identify patients with symptomatic, medial, or lateral meniscus posterior root tears with a minimum 2-year follow-up. Radiographs were graded using Kellgren-Lawrence scores.

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Background: Radiography is the initial imaging modality used to evaluate femoroacetabular impingement (FAI), and diagnostic radiographic findings are well-established. However, the prevalence of these radiographic findings in patients with hip pain is unknown.

Purpose: The purpose was 3-fold: (1) to determine the overall prevalence of radiographic FAI deformities in young patients presenting with hip pain, (2) to identify the most common radiographic findings in patients with cam-type FAI, and (3) to identify the most common radiographic findings in patients with pincer-type FAI.

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Background: There are limited data comparing the outcomes of similarly matched patients with a medial meniscus posterior root tear (MMPRT) treated with nonoperative management, partial meniscectomy, or repair.

Purpose/hypothesis: The purpose was to compare treatment failure, clinical outcome scores, and radiographic findings for a matched cohort of patients who underwent either nonoperative management, partial meniscectomy, or transtibial pull-through repair for an MMPRT. We hypothesized that patients who underwent meniscus root repair will have lower rates of progression to arthroplasty than patients who were treated with nonoperative management or partial meniscectomy.

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Background: While a large volume of literature has focused on risk factors for anterior shoulder instability, the rates of recurrence are inconsistent and require additional population-based epidemiologic data.

Purpose/hypothesis: The purpose was to report the effect of patient age on the number of instability events before physician consultation, rate of surgical stabilization, recurrent instability, and progression to osteoarthritis in patients <40 years old with anterior shoulder instability, utilizing an established US geographic population. We hypothesized that younger patients would be more likely to experience multiple episodes of instability before evaluation, undergo surgery, and experience recurrent instability after surgical intervention.

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Purpose: The purpose of this study was to create a predictive model utilizing baseline demographic and radiographic characteristics for the likelihood that a patient with subchondral insufficiency fracture of the knee will progress to knee arthroplasty with emphasis on clinical interpretability and usability.

Methods: A retrospective review of baseline and final radiographs in addition to MRIs were reviewed for evaluation of insufficiency fractures and associated injuries. Patient and radiographic factors were used in building predictive models for progression to arthroplasty with Train: Validation: Test subsets.

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Objective: To report radiographic and magnetic resonance imaging findings, patient-reported outcomes, and complications and/or reoperations following nonarthroplasty surgical intervention for focal glenohumeral cartilage defects.

Design: A literature search was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Patients were included if they possessed a chondral defect of the humeral head, glenoid, or both, which had been treated with a joint preserving nonarthroplasty procedure.

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