Injuries Following COVID-19 Infection in Academy-level Male Youth Soccer Players.

Background: Injury epidemiology data are key to injury prevention strategy development. Most such data surrounding the COVID-19 pandemic compare team injury data during the pandemic to that before the pandemic; few investigate injuries by infection status and even less involve academy-level organizations. We hypothesized that in male youth developmental academy-level soccer players, the rate of injury would be higher following COVID-19 infection than in the uninfected.

Synthetic Mesh Reconstruction of Chronic, Native Quadriceps Tendon Disruptions following Failed Primary Repair.

Case: Two patients presented with chronic knee extensor mechanism disruption after failed primary repairs. Both patients had minimal ambulatory knee function prior to surgical intervention and were treated with a synthetic mesh reconstruction of their extensor mechanism. Our technique has been modified from previously described techniques used in revision knee arthroplasty.

Outcomes Following Revision for Mechanically Assisted Crevice Corrosion in a Single Femoral Design.

Background: Mechanically assisted crevice corrosion (MACC) is a described complication following metal-on-polyethylene (MoP) total hip arthroplasty (THA). The literature regarding outcomes following revision for MACC suggests that complication rates are high. The purpose of this investigation is to add to this literature with the largest reported series to date.

Utilization Patterns, Efficacy, and Complications of Venous Thromboembolism Prophylaxis Strategies in Revision Hip and Knee Arthroplasty as Reported by American Board of Orthopaedic Surgery Part II Candidates.

Background: The optimum venous thromboembolism (VTE) prophylaxis strategy to minimize risk of VTE and bleeding complications following revision total hip and knee arthroplasty (rTHA/rTKA) is controversial. The purpose of this study is to describe current VTE prophylaxis patterns following revision arthroplasty procedures to determine efficacy, complication rates, and prescribing patterns for different prophylactic strategies.

Methods: The American Board of Orthopaedic Surgery Part II (oral) examination case list database was analyzed.

Quantifying the Backlog of Total Hip and Knee Arthroplasty Cases: Predicting the Impact of COVID-19.

Background: Total hip arthroplasty (THA) and total knee arthroplasty (TKA) are two high-volume procedures that were delayed due to COVID-19.

Questions/purposes: To help strategize an effective return to elective orthopedic surgery, we aimed to quantify the volume of THA and TKA cases delayed across the USA and estimate the time required to care for these patients when non-urgent surgery resumes.

Methods: Population-level data was used to estimate monthly THA and TKA procedural volume from 2011 to 2017.

Preoperative Analgesia, Complications, and Resource Utilization After Total Hip Arthroplasty: Tramadol Is Associated With Less Risk Than Other Preoperative Opioid Medications.

Background: Preoperative opioid use is known to be detrimental to outcomes after total hip arthroplasty (THA). This is concerning as multiple societies recommend tramadol for the management of arthritis. The purpose of this study was to determine if tramadol is associated with postoperative complications, increased resource utilization, and revision when compared with patients receiving nontramadol opioids (NTOs) and those who are opioid naive (ON).

Modifiability of Depression's Impact on Early Revision, Narcotic Usage, and Outcomes After Total Hip Arthroplasty: The Impact of Psychotherapy.

Background: Depression is known to negatively influence functional recovery, patient satisfaction, narcotic requirements, implant survivorship, and perioperative resource utilization after total hip arthroplasty (THA). The degree to which this effect is modifiable is largely unknown, with mixed results on preoperative pharmacological intervention, and concomitant concerns over side effects. We aim to investigate the influence of psychotherapy before THA on surgical outcomes, medical complications, and resource utilization.

The American Board of Orthopaedic Surgery Response to COVID-19.

The COVID-19 pandemic has disrupted every aspect of society in a way never previously experienced by our nation's orthopaedic surgeons. In response to the challenges the American Board of Orthopaedic Surgery has taken steps to adapt our Board Certification and Continuous Certification processes. These changes were made to provide flexibility for as many Candidates and Diplomates as possible to participate while maintaining our high standards.

Prosthetic Joint Infection Trends at a Dedicated Orthopaedics Specialty Hospital.

Introduction: Historically, a majority of prosthetic joint infections (PJIs) grew Gram-positive bacteria. While previous studies stratified PJI risk with specific organisms by patient comorbidities, we compared infection rates and microbiologic characteristics of PJIs by hospital setting: a dedicated orthopaedic hospital versus a general hospital serving multiple surgical specialties.

Methods: A retrospective review of prospectively collected data on 11,842 consecutive primary hip and knee arthroplasty patients was performed.

Utilization Patterns, Efficacy, and Complications of Venous Thromboembolism Prophylaxis Strategies in Primary Hip and Knee Arthroplasty as Reported by American Board of Orthopedic Surgery Part II Candidates.

Background: Many strategies for venous thromboembolism (VTE) prophylaxis following hip and knee arthroplasty exist, with extensive controversy regarding the optimum strategy to minimize risk of VTE and bleeding complications. Data from the American Board of Orthopedic Surgery Part II (oral) Examination case list database was analyzed to determine efficacy, complication rates, and prescribing patterns for different prophylactic strategies.

Methods: The American Board of Orthopedic Surgery case database was queried utilizing Current Procedural Terminology codes 27447 and 27130 for primary total knee and hip arthroplasty, respectively.

Author Correction: Factors of the bone marrow microniche that support human plasma cell survival and immunoglobulin secretion.

The original version of this Article omitted a declaration from the Competing Interests statement, which should have included the following: 'A patent has been applied for by Emory University with F.E.L, I.

Knee MRI Primary Care Ordering Practices for Nontraumatic Knee Pain: Compliance With ACR Appropriateness Criteria and Its Effect on Clinical Management.

Purpose: To evaluate the appropriateness of MRI ordering practices and their effect on clinical management for nontraumatic knee pain at the primary care clinics of a large public urban hospital.

Materials And Methods: In all, 196 consecutive MRIs for nontraumatic knee pain ordered from primary care clinics in a large public urban hospital over an 18-month period were studied. ACR Appropriateness Criteria (AC) scores for nontraumatic knee pain were retrospectively calculated from medical record reviews.

Factors of the bone marrow microniche that support human plasma cell survival and immunoglobulin secretion.

Human antibody-secreting cells (ASC) in peripheral blood are found after vaccination or infection but rapidly apoptose unless they migrate to the bone marrow (BM). Yet, elements of the BM microenvironment required to sustain long-lived plasma cells (LLPC) remain elusive. Here, we identify BM factors that maintain human ASC > 50 days in vitro.

Long-term results of extensor mechanism reconstruction using Achilles tendon allograft after total knee arthroplasty.

Purpose: Disruption of the extensor mechanism after total knee arthroplasty (TKA) is an infrequent but devastating complication. Presently, limited data exists regarding the optimal treatment and long-term outcomes.

Methods: Patients who underwent reconstruction of their knee extensor mechanism using Achilles tendon allograft following TKA between January 2003 and January 2012 were identified.

Total Wrist Arthroplasty Versus Wrist Fusion: Utilization and Complication Rates as Reported by ABOS Part II Candidates.

Background: The aim of this study was to assess national trends in the utilization and complication rates of total wrist arthroplasty (TWA) and total wrist fusion (WF) as identified via review of the American Board of Orthopedic Surgery (ABOS) Part II candidate database.

Methods: The ABOS Part II candidate database is a collection of cases reported by candidates of the ABOS Part II board certification oral exam. The ABOS database was queried for all TWA and WF cases performed from 2005 to 2014.

Modified Frailty Index Is an Effective Risk Assessment Tool in Primary Total Hip Arthroplasty.

Background: Frailty is described as decreased physiological reserve and typically increasing with age. Hospitals are being penalized for reoperations and readmissions, which can affect reimbursement. The purpose of this study was to determine if the modified frailty index (MFI) could be used as a risk assessment tool for preoperative counseling and to make an objective decision on whether to perform total hip arthroplasty (THA) on a frail patient.

Early Complications Following Osteosynthesis of Distal Radius Fractures: A Comparison of Geriatric and Nongeriatric Cohorts.

Background: Distal radius fractures (DRFs) are common geriatric fractures with the overall incidence expected to increase as the population continues to age. The purpose of this investigation was to compare the short-term complication rates in geriatric versus nongeriatric cohorts following osteosynthesis of DRFs.

Methods: The American Board of Orthopaedic Surgery (ABOS) part II database was queried for adult DRF cases performed from 2007 to 2013.

A Validated Single-View Radiographic Alternative to Computed Tomography for the Measurement of Femoral Anteversion: A Method-Comparison Study.

Background: Although preoperative templating in total hip arthroplasty is helpful to ensure appropriate component position, there is no single-view radiographic method to determine femoral anteversion (FA) preoperatively. The aim of the present study was to validate the use of radiographic measurement of FA using a modified Budin view.

Methods: This prospective study reports on 105 limbs from 65 patients.

Gross Trunnion Failure of a Cobalt-Chromium Femoral Head on a Titanium Stem at Midterm Follow-up: A Report of 3 Cases.

Case: Three patients underwent uncomplicated primary total hip arthroplasty with cobalt-chromium femoral heads (36+5 mm) on titanium V40 tapers. At 6 to 9 years of follow-up, severe effects of corrosion at the trunnion were noted in all 3 patients, along with elevated levels of serum cobalt ions and normal levels of serum chromium ions. Gross trunnion failure, apparently caused by corrosion, required femoral stem revision in all of the patients.

Humeral Shaft Fracture Fixation: Incidence Rates and Complications as Reported by American Board of Orthopaedic Surgery Part II Candidates.

Background: Despite extensive research regarding patient outcomes after operative fixation of humeral shaft fractures by means of open reduction and internal fixation (ORIF) or intramedullary nailing (IMN), no current consensus exists regarding the optimal surgical treatment. The objective of this study was to compare IMN and plate fixation (ORIF) of humeral shaft fractures by using the American Board of Orthopaedic Surgery (ABOS) Part II operative database to analyze incidence rates, changes in management trends over time, early complications, and factors affecting the management choice.

Methods: The ABOS database is a collection of surgical cases that are self-reported by orthopaedic candidates approved for admission to the ABOS oral examination.

Trends in Primary and Revision Hip Arthroplasty Among Orthopedic Surgeons Who Take the American Board of Orthopedics Part II Examination.

Background: A certified list of all operative cases performed within a 6-month period is a required prerequisite for surgeons taking the American Board of Orthopaedic Surgery Part II oral examination. Using the American Board of Orthopaedic Surgery secure Internet database database containing these cases, this study (1) assessed changing trends for primary and revision total hip arthroplasty (THA) and (2) compared practices and early postoperative complications between 2 groups of examinees, those with and without adult reconstruction fellowship training.

Methods: Secure Internet database was searched for all 2003-2013 procedures with a Current Procedural Terminology code for THA, hip resurfacing, hemiarthroplasty, revision hip arthroplasty, conversion to THA, or removal of hip implant (Girdlestone, static, or dynamic spacer).

Trends in primary and revision knee arthroplasty among orthopaedic surgeons who take the American Board of Orthopaedics part II exam.

Purpose: A certified list of all operative cases performed within a six month period is required of surgeons by the American Board of Orthopaedic Surgery (ABOS) as a prerequisite to taking the Part II Oral Examination. Using the data on these cases collected and maintained by ABOS, this study assessed the influence of prior fellowship training in adult reconstruction on the volume and surgeon-reported complication rate of knee joint arthroplasty cases over time.

Methods: All data were self reported to a secure Internet database (SCRIBE) by candidates who applied to take Part II of the ABOS Examination for the first time.

Epiphysiolysis of the femoral neck due to closed reduction of an adolescent hip dislocation with a 4-year follow-up: a case report and review of the literature.

This case study discusses a 13-year-old girl diagnosed with a displaced Salter Harris II fracture of the proximal femoral epiphysis post reduction of a dislocated hip. Radiographs before reduction revealed a small fracture of the inferomedial femoral head. This, however, did not induce concern before reduction.

Surgical Trends in the Treatment of Superior Labrum Anterior and Posterior Lesions of the Shoulder: Analysis of Data From the American Board of Orthopaedic Surgery Certification Examination Database.

Background: After failure of nonoperative treatment, repair has long been the primary treatment option for symptomatic superior labrum anterior and posterior (SLAP) lesions of the shoulder. There is growing evidence to support both biceps tenotomy and tenodesis as effective alternative treatments for SLAP lesions.

Hypotheses: For patients with isolated SLAP lesions, the frequency of SLAP repair has decreased, while treatment with biceps tenodesis and tenotomy has increased.

Inpatient enoxaparin and outpatient aspirin chemoprophylaxis regimen after primary hip and knee arthroplasty: a preliminary study.

Our institution has used a thromboprophylaxis regimen consisting of inpatient enoxaparin and outpatient aspirin for patients at standard risk for venous thrombosis after hip and knee arthroplasty. We reviewed 500 cases using this protocol. Inpatient treatment with enoxaparin averaged 2.