Publications by authors named "Eric Guo"

Digital papillary adenocarcinoma (DPA) is a rare but locally aggressive eccrine tumour that has metastatic potential and most frequently found in the upper extremity. It usually presents as an unremarkable swelling of the skin, commonly misdiagnosed as a benign lesion. We present a 67-year-old male who presented with a slowly growing mass of the right middle finger that was biopsied and diagnosed with DPA.

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Article Synopsis
  • Injury to the flexor pronator mass is common among overhead throwing athletes, leading to significant research into understanding these injuries.
  • Factors contributing to these injuries often include chronic overuse and insufficient rest periods between performances.
  • This review specifically addresses medial elbow injuries in young athletes, emphasizing the flexor pronator mass.
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Article Synopsis
  • SLAP injuries in MLB pitchers can lead to lengthy recovery times and significant financial costs, averaging $3.5 million per case over a study period from 2004 to 2019.
  • Approximately 40% of pitchers were able to return to play, with 82% of those returning to their previous performance levels, although performance metrics like earned run average and hits allowed did decline slightly post-injury.
  • Despite stable recovery times averaging 172 days on the injured list, the financial and performance implications of SLAP repairs remain a concern for teams and players alike.
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Purpose: We wanted to evaluate opioid prescribing patterns among orthopaedic surgeons and to identify demographics that may be associated with more extensive opioid prescribing habits that could be candidates for targeted education policies.

Methods: Medicare Part D prescriber and prescription information for the most recent available year, 2017, was accessed via a publicly available database offered by the Centers for Medicare and Medicaid. Number of total prescriptions, number of opioid prescriptions, and the total days' supply of opioids prescribed were analyzed for each of 19,219 orthopaedic surgeons.

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Purpose: To examine trends in Patient-Reported Outcome Measurement Information System (PROMIS) scores among orthopedic sports medicine patients undergoing surgery who completed PROMIS forms both in the ambulatory (preoperative) setting at the time of surgical scheduling, as well as on the day of surgery (perioperative) prior to their procedure.

Methods: Consecutive patients undergoing various sports medicine-related surgeries were recruited. Patients were included if they were scheduled for surgery and completed preoperative PROMIS on the day of surgical scheduling and on the day of surgery.

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Purpose: To determine the impact of clinical depression on outcomes after rotator cuff repair (RCR), as measured by Patient-Reported Outcomes Measurement Information System (PROMIS) Computer Adaptive Test (CAT) health domains.

Methods: RCR patients were given PROMIS CAT assessments for physical function (PROMIS UE), pain interference (PROMIS PI), and depression (PROMIS D) during preoperative and postoperative clinic visits. PROMIS D scores ≥55 correlate with mild clinical depression; thus patients with PROMIS D scores ≥ 55 were placed in the clinical depression (CD) group, whereas patients with scores <55 were placed in the "no clinical depression" (NCD) group.

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Background: The current literature suggests a link between psychosocial factors and poor surgical outcomes in patients with musculoskeletal complaints. However, there remains a limited body of literature examining the effect of depression on outcomes after anterior cruciate ligament reconstruction (ACLR).

Purpose: The primary purpose of this study was to compare postoperative function patient-reported outcome scores between patients with and patients without preoperative depression symptoms undergoing ACLR.

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Humeral avulsion of the glenohumeral ligament (HAGL) lesions can lead to persistent shoulder instability. While rare, HAGL lesions may present as a concomitant injury following shoulder dislocation events. Traditionally, an open approach has been used to repair the inferior glenohumeral ligament and restore shoulder stability.

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Purpose: The primary purpose of this study was to compare the cost of care of one of the most common sports medicine surgical procedures, anterior cruciate ligament reconstruction (ACLR), using the time-driven activity-based costing (TDABC) method to traditional accounting methods such as activity-based costing (ABC). Our secondary purpose was to identify the main drivers of the cost of ACLR using both of these techniques.

Methods: A process map of ACLR was constructed through direct observation in the clinical setting according to established techniques to identify drivers of fixed, direct variable, and indirect costs.

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Background: Multiple studies have demonstrated the National Institutes of Health (NIH) Patient-Reported Outcomes Measurement Information System (PROMIS) to be a responsive and efficient measure for patients undergoing orthopaedic surgery. While these studies were rigorous in their protocol and methodology, no efforts in recent literature have been made to identify if these reference scores apply to elite athletes.

Purpose/hypothesis: The purpose of this study was to determine whether there is a difference in the baseline scores of elite athletes versus the general population.

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Background: Postoperative rehabilitation protocols after ulnar collateral ligament (UCL) reconstruction typically involve a structured interval throwing program. In an effort to minimize torque placed on the UCL, athletes are often instructed to throw with a crow hop, even at short throwing distances. However, the effect of the crow hop on medial elbow stress is unknown.

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Background: As the popularity of youth soccer has increased in the United States, more attention has been focused on the effect of concussion injuries, with recent debate on whether heading should be disallowed. There is little evidence examining the epidemiology of these injuries.

Purpose/hypothesis: The purpose of this study was to examine the prevalence and incidence of youth soccer-related concussions.

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Article Synopsis
  • Arthroscopic shoulder stabilization is a minimal invasive procedure that effectively restores shoulder mechanics in cases of instability.
  • Modern techniques have improved access and efficiency but pose challenges in reaching certain labrum areas safely.
  • The article discusses an optimal approach using the lateral decubitus position and introduces accessory portals and various suture techniques for successful treatment.
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Distal biceps tendon ruptures are uncommon injuries that can cause impairment in range of motion and function. While distal bicep tendon repair to the radial tuberosity has been demonstrated to restore function and strength, there is a lack of consensus on the optimal technique. The purpose of this Technical Note and video is to provide our preferred method of repair using an open, onlay-tissue fixation with all-suture anchors (FiberTak; Arthrex) and anatomic positioning of the biceps tendon on the radial tuberosity.

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Recent advancements in wearable technology have made kinetic and kinematic analysis of the throwing motion more accessible to recreational and professional baseball pitchers. Utilization of wearable technology to monitor the pitching motion has several potential applications for injury prevention and postinjury rehabilitation. However, the device must be properly applied to collect meaningful data.

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Background: The Patient-Reported Outcomes Measurement Information System (PROMIS) has become increasingly popular among orthopedic surgeons treating shoulder pathology. Despite this, there have been few studies that have described and compared preoperative reference scores for specific shoulder surgical procedures. The primary purpose of this study was to establish and compare baseline preoperative PROMIS scores for 3 common types of shoulder surgery: rotator cuff repair (RCR), total shoulder arthroplasty (TSA), and labral repair (LR).

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Purpose: To perform a systematic review to answer the following: (1) What are the floor and ceiling (F/C) effects of the Patient-Reported Outcomes Measurement Information System (PROMIS) computer adaptive test (CAT) domains of physical function (PF), upper extremity physical function (UE), pain interference (PI), and depression (D) in adult orthopaedic patients? (2) Do the PROMIS-PF and PROMIS-PI domains have differing F/C effects depending on use in upper extremity, lower extremity, spine, neck, and back, or trauma patients?.

Methods: (Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines were followed, the review was registered on PROSPERO, and the methodological index for non-randomized studies was used for this systematic review. Studies reporting the F/C effects of at least 1 of 4 PROMIS CAT domains in orthopaedic patient cohorts accessed through PubMed and Embase on October 30, 2018, were included.

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Article Synopsis
  • The incidence of concussions in Major League Baseball (MLB) has risen, leading to significant financial costs and the introduction of a concussion-specific 7-day disabled list (DL) in 2011.
  • The study analyzed the trends in concussions from 2005 to 2016, focusing on 112 players who were placed on the DL, and compared salary and performance data before and after the rule change.
  • Results showed a decrease in both the average time players spent on the DL and associated costs, with no negative impact on players' performance following their return.
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Faced with increasing pressure to reduce costs, hospitals must find new ways to eliminate waste while simultaneously maintaining the highest quality of care. For any institution, these can types of changes can be complex and burdensome. This article outlines several methods that have been successful in reducing costs while maintaining high quality and highlights feasible methodologies that can help health care providers implement new quality improvement protocols.

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Background: There is a growing population of patients with history of solid organ transplant (SOT) surgery among total joint patients. Patients with history of SOT have been found to have longer lengths of stay and higher inpatient hospital costs and complications rates after hip and knee arthroplasty. The purpose of this study was to determine whether this is true for shoulder arthroplasty in SOT patients.

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Objectives/hypothesis: To characterize health burden and determine the associated level of equality of laryngeal carcinoma (LC) burden at a global level.

Methods: One hundred eighty-four countries were organized by socioeconomic status using Human Development Index (HDI) categorizations provided by the United Nations Development Program. Disability-adjusted life years (DALYs), obtained from The Global Health Data Exchange, were calculated and compared between each HDI category for the period from 1990 to 2015.

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Objectives/hypothesis: There has been growing recognition of the roles prescription drug misuse and diversion play in facilitating the ongoing opioid epidemic. Our objective was to evaluate opioid prescription patterns among practicing otolaryngologists.

Study Design: Retrospective review of a CMS database.

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Objectives/hypothesis: To characterize trends in rhinosinusitis clinical trials to provide recommendations for therapeutic directions, highlight possible redundancy, and provide a framework for prioritization of future clinical trials.

Study Design: Database analysis.

Methods: Data were collected from ClinicalTrials.

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