The Development and Execution of An Orthopaedic Sports Medicine Fellowship Surgical Skills Assessment.

Background: Assessment of orthopaedic surgery trainees is traditionally based on subjective evaluation by faculty. The recent push for value-based health care has placed a premium on improving patient outcomes. As a result, surgical training evaluations for orthopaedic trainees are evolving to include more objective measures to evaluate competency.

Current Concepts on the Management of Shoulder Instability in Throwing Athletes.

Purpose Of Review: The management of shoulder instability in throwing athletes remains a challenge given the delicate balance between physiologic shoulder laxity facilitating performance and the inherent need for shoulder stability. This review will discuss the evaluation and management of a throwing athlete with suspected instability with a focus on recent findings and developments.

Recent Findings: The vast majority of throwing athletes with shoulder instability experience subtle microinstability as a result of repetitive microtrauma rather than episodes of gross instability.

Impact of Wiberg Patellar Type on Outcomes and Survival Following Cell-Based Cartilage Repair for Patellar Chondral Lesions at Midterm Follow-up.

Background: Cell-based cartilage repair procedures of the patellofemoral joint have less reliable outcomes than those of the tibiofemoral joint. No previous studies have evaluated the influence of patellar shape on cell-based cartilage repair outcomes. Patellar dysplasia may predispose patients to worse outcomes after cell-based cartilage repair.

Current Concepts in the Measurement of Glenohumeral Bone Loss.

Purpose: The extent of glenohumeral bone loss seen in anterior shoulder dislocations plays a major role in guiding surgical management of these patients. The need for accurate and reliable preoperative assessment of bone loss on imaging studies is therefore of paramount importance to orthopedic surgeons. This article will focus on the tools that are available to clinicians for quantifying glenoid bone loss with a focus on emerging trends and research in order to describe current practices.

Tribocorrosion is common but mild in modular humeral components in shoulder arthroplasty: an implant retrieval analysis.

Background: Wear and corrosion at the junctions of modular implants are increasingly recognized issues in the design of hip and knee arthroplasty prostheses, yet less is known about their significance in shoulder arthroplasty.

Methods: A query of paired total shoulder implant specimens (eg, humeral head and stem components from the same patient) was performed using an institutional implant retrieval registry. Implants were examined under a stereomicroscope and evaluated for evidence of fretting and corrosion using the modified Goldberg scoring system.

The quality and accuracy of direct-to-consumer biologic marketing for shoulder pathology are poor.

Background: The growing role of biologic therapies as adjunct or standalone procedures in orthopedic practice has led to greater levels of direct-to-consumer biologic marketing. The present study aims to assess the quality, accuracy, and readability of online educational resources available to patients regarding biologic therapies for shoulder pathology.

Methods: Eight search terms relevant to shoulder biologic therapies (shoulder + BMAC, Bone Marrow Aspirate Concentrate, PRP, Platelet Rich Plasma, Lipogems, Adipose Tissue, Biologic therapy, and Stem cell therapy) were searched across three separate search engines.

Increased Elbow and Olecranon Injury History in Professional Pitchers With Increased Elbow Flexion at Ball Release.

Background: Elbow flexion at late portions of the pitch has been associated with increased elbow varus torque, a kinetic surrogate associated with injury risk. Direct examinations of injury incidence with elbow flexion angles have not been conducted in professional pitchers.

Purpose: To compare elbow and shoulder injury incidence among professional baseball players stratified by degree of elbow flexion at ball release (BR).

Pitching Mechanics and the Relationship to Accuracy in Professional Baseball Pitchers.

Background: Biomechanical predictors of pitching accuracy are underevaluated in baseball research. It is unclear how pitchers with higher accuracy differ in terms of kinematics and upper extremity kinetics.

Purpose: To differentiate high- and low-accuracy professional pitchers by full-body kinematic and upper extremity kinetic parameters.

The association of stride length to ball velocity and elbow varus torque in professional pitchers.

Professional basebal pitchers (n =315) were divided into quartiles based on increasing stride length and random intercept linear mixed-effect models were used to correlate stride length with ball velocity, pelvis and trunk rotation at foot contact, and throwing arm kinetics. Average stride length among all pitchers was 78.3±5.

Implant-Mediated Guided Growth for Coronal Plane Angular Deformity in the Pediatric Patient with Patellofemoral Instability.

Pediatric patellofemoral instability is a complex problem, for which there are several anatomic risk factors. Coronal plane malalignment (i.e.

Superior Capsule Reconstruction: A Glimpse into the Future?

The recent study by Mihata et al., [10] "" (. 2019;101:1921-1930), was the first case series published examining long-term clinical and radiographic outcomes of superior capsule reconstruction (SCR) for irreparable rotator cuff tears.

Correction to: At the US Epicenter of the COVID-19 Pandemic, an Orthopedic Residency Program Reorganizes.

[This corrects the article DOI: 10.1007/s11420-020-09765-5.].

The Impact of Running, Monofilament Barbed Suture for Subcutaneous Tissue Closure on Infection Rates in Total Hip Arthroplasty: A Retrospective Cohort Analysis.

Background: Recently, running, monofilament barbed suture has become more popular as an efficient and economical alternative to traditional braided interrupted suture for wound closure following total joint arthroplasty. Its overall association with wound complications following surgery remains unknown at this time. Several studies have investigated its use in total knee arthroplasty (TKA), but there is limited literature surrounding use in total hip arthroplasty (THA).

Clinical Outcomes of Hyperplantarflexion Variant Compared With Supination External Rotation Ankle Fractures: A Matched-Cohort Analysis.

Recent literature has reported an uncategorized hyperplantarflexion variant ankle fracture characterized by a posteromedial fragment separate from the posterior or medial malleolar fragments. The current study sought to determine whether the outcomes for surgically treated hyperplantarflexion variant fractures are similar to the more common supination external rotation (SER) IV fractures. A prospective registry of operatively treated ankle fractures was queried to create 2 age- and gender-matched cohorts: hyperplantarflexion variant and SER IV fractures.

Risk factors for conversion surgery to total hip arthroplasty of a hemiarthroplasty performed for a femoral neck fracture.

Introduction: The purpose of this study was to determine risk factors for conversion to total hip arthroplasty (THA) in patients originally treated with hemiarthroplasty (HA) for displaced femoral neck fractures.

Methods: In this case-controlled study, we identified 54 patients who were treated with HA for femoral neck fracture (FNF) who subsequently underwent conversion to THA at our institution between 2003 and 2013. We randomly selected 142 control patients who underwent HA for a displaced FNF without conversion surgery during the same time period.

Dual Radial Styloid and Volar Plating for Unstable Fractures of the Distal Radius.

As the operative management of displaced distal radius fractures evolves, intraoperative techniques and fixation strategies evolve as well. Achieving and maintaining an acceptable reduction is paramount but can be difficult with particular fracture patterns. In this article, we describe the use of a radial column plate as a reduction tool in the management of unstable distal radius fractures, along with clinical and radiographic clinical outcomes.

Quantitative and Qualitative Assessment of the Relative Arterial Contributions to the Calcaneus.

Background: The purpose of this study was to quantitatively and qualitatively assess relative arterial contributions to the calcaneus.

Method: Fourteen cadaveric ankle pairs were used. In each specimen, the posterior tibial artery, peroneal artery, and anterior tibial artery were cannulated and used for contrast-enhanced magnetic resonance imaging (MRI) and computed tomography (CT).

Decreased risk of knee buckling with adductor canal block versus femoral nerve block in total knee arthroplasty: a retrospective cohort study.

Background: Femoral nerve (FNB) and adductor canal blocks (ACB) are used in the setting of total knee arthroplasty (TKA), but neither has been demonstrated to be clearly superior. Although dynamometer studies have shown ACBs spare perioperative quadriceps function when compared to FNBs, ACBs have been widely adopted in orthopaedic surgery without significant evidence that they decrease the risk of perioperative falls.

Methods: All patients who received single-shot FNB (129 patients) or ACB (150 patients) at our institution for unilateral primary TKA from April 2014 to September 2015 were retrospectively reviewed for perioperative falls or near-falls during physical therapy and inpatient care.

The Effect of Soft Tissue Injuries on Clinical Outcomes After Tibial Plateau Fracture Fixation.

Objective: To determine if ligamentous and meniscal injuries as determined by initial magnetic resonance imaging altered clinical outcomes after the fixation of tibial plateau fractures.

Design: Comparative cohort study.

Setting: Academic level I trauma center.

Risk factors for conversion surgery to total hip arthroplasty of a hemiarthroplasty performed for a femoral neck fracture.

Introduction: The purpose of this study was to determine risk factors for conversion to total hip arthroplasty (THA) in patients originally treated with hemiarthroplasty (HA) for displaced femoral neck fractures.

Methods: In this case-controlled study, we identified 54 patients who were treated with HA for femoral neck fracture (FNF) who subsequently underwent conversion to THA at our institution between 2003 and 2013. We randomly selected 142 control patients who underwent HA for a displaced FNF without conversion surgery during the same time period.

Focal osteonecrosis in the femoral head following stable anatomic fixation of displaced femoral neck fractures.

Introduction: Femoral head (FH) osteonecrosis (ON) and subsequent segmental collapse is a major concern following displaced femoral neck fractures (FNF). We aimed to quantify residual perfusion to the FH following FNF and evaluate the viability of the FH overtime after surgical fixation.

Materials And Methods: Twenty-three patients with FNF underwent dynamic contrast-enhanced (DCE)-MRI to estimate bone perfusion in the FH, using the contralateral side as control.

Superior Outcomes After Operative Fixation of Patella Fractures Using a Novel Plating Technique: A Prospective Cohort Study.

Objective: The purpose of this prospective cohort study was to determine if a new patella fracture fixation construct resulted in improved outcomes compared with traditional tension band techniques.

Design: Comparative cohort study.

Setting: Academic level I trauma center.

Rotator Cuff-Sparing Approach for Antegrade Humeral Nailing With Biceps Tenodesis: A Technical Trick With Clinical Implications.

Antegrade intramedullary nails are an established, effective method of fixation for humeral shaft fractures. One significant limitation of this technique is chronic postoperative shoulder pain, which is likely related to the standard approach that involves splitting the rotator cuff to gain access to the nail starting point. Furthermore, mounting evidence suggests that both the intra-articular portion of the biceps tendon and the extra-articular portion in the bicipital groove can scar down after trauma, causing pain and limiting shoulder range of motion.