Publications by authors named "Waterman B"

With an estimated incidence of 0.02% to 0.2%, multiligamentous knee injuries are rare, often devastating injuries that can occur with concomitant vascular or neurologic involvement.

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Partial-thickness rotator cuff tears (PTRCTs) are a common source of shoulder pathology, both in the aging population and in younger overhead athletes. Advanced imaging modalities used currently have led to increases in recognition, diagnosis, and treatment of these tears. The anatomy, five-layer histology, and relationship to the Ellman classification of PTRCTs have been well studied, with recent interest in radiographic predictors, such as the critical shoulder angle and acromial index.

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Purpose: To determine the optimal treatment decision for capsular management after primary hip arthroscopy for femoroacetabular impingement syndrome.

Methods: An expected-value decision analysis was performed (1) organizing the decision problem, (2) determining outcome probabilities, (3) determining outcome utilities, (4) performing fold-back analyses, and (5) performing sensitivity analyses. A decision tree was constructed (complete capsule closure vs incomplete closure) and a meta-analysis was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework, a systematic review was conducted to determine outcome probabilities.

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Objectives: Electric biking (e-biking) is a rapidly growing recreation, sport, and mode of transportation that often presents to emergency departments (EDs) with high-impact head injuries. This study aimed to evaluate the epidemiology of e-bike-related concussions and closed-head injuries (CHI) to inform more effective injury prevention strategies.

Methods: The National Electronic Injury Surveillance (NEISS) was queried for e-bike related concussions and CHIs presented to national EDs from 1 January 2013-31 December 2022.

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Context: Facilitated poetry writing workshops are used in healthcare settings as a therapeutic approach to address stressful factors that negatively influence clinician well-being. However, owing to the novelty of this intervention and a tendency to combine poetry with other types of narrative-based techniques, proponents of poetic medicine are calling for harmonization across programs in the US. This would facilitate the study of poetry in medicine and the multiple facets of well-being it is said to promote.

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Article Synopsis
  • The study investigates the reliability of machine learning algorithms for assessing surgical risk in hip fracture patients, leveraging data from the American College of Surgeons from 2011 to 2018.
  • A total of 95,745 cases were analyzed, and machine learning models were compared to traditional comorbidity indices, showing superior performance in predicting various outcomes such as complications and prolonged hospital stays.
  • Results indicated that machine learning substantially outperformed legacy indices in terms of predictive accuracy, highlighted by significant area under the curve (AUC) improvements for all assessed complications (P < 0.01).
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Introduction: In the Los Angeles County Department of Health Services-the second largest public health care system in the United States-clinical integration allows specialists and primary care providers to collaboratively provide specialty care. We used time-driven activity-based costing to compare patient burden and cost of kidney stone diagnosis, workup, and management with and without clinical integration.

Methods: We interviewed and observed teams of physicians and staff to understand workflow practices and personnel, space, material, and device requirements for stone care in the 2 models.

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Background: Patients diagnosed with upper gastrointestinal cancers often require extensive end-of-life care. We sought to investigate social determinants of health associated with disparities in the location of death among patients who died of upper gastrointestinal cancers.

Methods: Patients who died between 2003 and 2020 from esophageal cancer, gastric cancer, hepatobiliary cancer, and pancreatic cancer were identified using the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research database.

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Purpose Of Review: The aim of this review is to aggregate currently available literature as it pertains to treating surgical shoulder pathology in patients with osteoporosis.

Recent Findings: Emerging data surrounding perioperative use of anti-osteoporosis medications for patients undergoing shoulder surgery have not shown definitively favorable or unfavorable outcomes. Similar evaluations in animal studies have shown promising results as a biologic augment to tendon and bone healing, especially with newer, anabolic agents.

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Background: Despite calls for regionalizing pancreatic cancer (PC) care to high-volume centers (HVCs), many patients with PC elect to receive therapy closer to their home or at multiple institutions. In the context of cross-institutional PC care, the challenges associated with coordinating care are poorly understood.

Methods: In this qualitative study we conducted semi-structured interviews with oncology clinicians from a HVC (n = 9) and community-based hospitals (n = 11) to assess their perspectives related to coordinating the care of and treating PC patients across their respective institutions.

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The Patient-Centered Outcomes Research Institute (PCORI) funded multiple large-scale comparative effectiveness clinical trials evaluating palliative care (PC) and advance care planning (ACP) healthcare delivery models. This article provides an overview of the most common barriers our investigative teams encountered while implementing these trials and the strategies we utilized to overcome these challenges, with particular attention to identifying research partners for multisite trials; addressing contracting and regulatory issues; creating a team governance structure; training and engaging study staff across sites; recruiting, consenting, and enrolling study participants; collecting PC and ACP data and study outcomes; and managing multisite collaborations. The goal of this article is to provide guidance on how to best plan for and conduct rigorous trials evaluating PC and ACP healthcare delivery interventions moving forward.

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Overhead athletes with anterior, posterior, and multidirectional shoulder instability present with a wide range of symptoms, especially considering the injury mechanism and affected supportive structures. As such, the management of shoulder instability is widely variable and relies on rehabilitation, operative management, and sport-specific considerations, such as positional and seasonal demands on the athlete. Biomechanical analysis may further aid in the recovery process or serve as a predictive tool to identify an increased risk for injury.

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Article Synopsis
  • Massive irreparable rotator cuff tears pose a significant challenge, especially in younger patients with high activity levels and no joint degeneration.
  • Reverse shoulder arthroplasty is not always effective for these tears, leading to a push for joint preservation strategies, with options like Superior Capsular Reconstruction (SCR) showing promising results in restoring shoulder function.
  • Despite the potential effectiveness of SCR, simpler procedures may yield comparable outcomes, highlighting the need to customize treatment plans based on individual patient needs and circumstances.
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» Partial-thickness rotator cuff tears (PTRCTs) are a common pathology with a likely high asymptomatic incidence rate, particularly in the overhead athlete.» The anatomy, 5-layer histology, and relationship to Ellman's classification of PTRCTs have been well studied, with recent interest in radiographic predictors such as the critical shoulder angle and acromial index.» Depending on the definition of tear progression, rates of PTRCT progression range from 4% to 44% and appear related to symptomatology and work/activity level.

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Background: Multiple studies have analyzed pitching kinematics using motion analysis technology, but lower extremity drive leg impulse (DLI) and drive leg slope (DLS) are not as well characterized. The purpose of this study was to investigate associations between DLI and DLS and pitch velocity as well as angular velocity of the pelvis, trunk, and humerus.

Hypothesis: Increased DLI and DLS will be correlated positively with pitch velocity and associated with increased angular velocities in the humerus, trunk, and pelvis.

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Purpose: To identify prognostic factors associated with a delayed return-to-sport (RTS) time in amateur athletes who return to full participation after a primary isolated anterior cruciate ligament (ACL) reconstruction.

Methods: A retrospective review was performed among athletes who underwent ACL reconstruction between October 2014 and October 2021. Inclusion criteria were any amateur athletes with an ACL reconstruction who had a documented RTS and greater than 1-year follow-up.

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Context: Though patients undergoing treatment for upper gastrointestinal (GI) cancers frequently experience a range of sequelae and disease recurrence, patients often do not receive specialty palliative care soon after diagnosis and it is unknown in what ways they may benefit.

Objectives: To understand patient experiences of specialty palliative care in the perioperative period for patients seeking curative intent upper GI oncologic surgery.

Methods: As part of a randomized controlled trial, we conducted in-depth interviews between November 2019 and July 2021 with 23 patients in the intervention arm who were undergoing curative intent treatment for upper GI cancers and who were also followed by the specialty palliative care team.

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The Shoulder Instability-Return to Sports After Injury (SIRSI) scale is a useful psychological readiness tool to determine whether athletes are prepared to return to sport. Although questions remain on the optimal timing of survey administration based on the type of procedure (i.e.

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Purpose: To assess the reimplantation rate and predictors of patients requiring second-staged matrix-induced autologous chondrocyte implantation (MACI) reimplantation after initial first stage cartilage biopsy.

Methods: A retrospective review was performed from 2018 to 2022 among patients who underwent only phase I MACI biopsy procedure (biopsy group) or both phase I with transition to phase II implantation of chondrocytes (implantation group) at a single tertiary center. Demographic, qualitative, and quantitative measurements were recorded, and univariate and multivariate regression analysis was performed to assess predictors of ultimately requiring second stage MACI implantation.

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Purpose: To establish consensus statements on glenoid bone grafting, glenoid osteotomy, rehabilitation, return to play, and follow-up for posterior shoulder instability.

Methods: A consensus process on the treatment of posterior shoulder instability was conducted, with 71 shoulder/sports surgeons from 12 countries participating on the basis of their level of expertise in the field. Experts were assigned to 1 of 6 working groups defined by specific subtopics within posterior shoulder instability.

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Article Synopsis
  • The study aimed to improve superior capsular reconstruction by testing four types of suture anchors, examining different fixation points on the glenoid neck, and exploring the relationship between bone mineral density (BMD) and fixation strength.
  • Twenty cadaveric specimens were randomly divided into four groups for testing various anchor types, and metrics like cyclic elongation, maximum load, and stiffness were recorded during mechanical testing.
  • Key findings indicated that while certain anchors showed some performance differences, overall fixation strength and cyclic behavior did not vary significantly among anchor positions; the Bio-Corkscrew anchor was noted for achieving the highest maximum load.
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Background And Objective: Anterior shoulder dislocations can result in acute glenoid rim fractures that compromise the bony stability of the glenohumeral joint. Adequate fixation of these fractures is required to restore stability, decrease shoulder pain, and facilitate return to activity. The double-row suture bridge is a relatively novel fixation technique, first described in 2009, that accomplishes internal fixation with sufficient stability using an all-arthroscopic technique to restore the glenoid footprint.

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Over the past decade, there has been an increased awareness of the recognition and treatment of medial meniscus posterior root tears. Recent systematic reviews and meta-analyses have shown that surgical repair of medial meniscus posterior root tears is effective in improving patient-reported outcome measures and decreasing the progression of osteoarthritis when compared with nonoperative treatment or meniscectomy. The available techniques currently consist of transosseous suture fixation and direct suture anchor fixation, with transosseous repairs being the most frequently performed.

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» Posterior glenohumeral instability is relatively uncommon compared with anterior instability, but is becoming an increasingly recognized and surgically managed shoulder pathology.» Soft-tissue stabilization alone may not be sufficient in patients who present with substantial bone loss to the posterior glenoid and/or the anterior humeral head.» For posterior glenoid defects, posterior glenoid osteoarticular augmentation can be used, and posterior glenoid opening wedge osteotomy can be considered in cases of posterior instability with pathologic retroversion.

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